Financial Metrics

IPGP IPG PHOTONICS CORP

Range: 2016-01-01 to 2026-04-29

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Financial Statements

Grouped by statement

Income Statement

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Quarterly	2016-03-31	0.92	—	USD/shares	10-Q	2017-05-08
Quarterly	2016-06-30	1.25	+35.9%	USD/shares	10-Q	2017-08-08
Quarterly	2016-09-30	1.29	+3.2%	USD/shares	10-Q	2017-11-07
Quarterly	2017-03-31	1.38	+7.0%	USD/shares	10-Q	2018-05-04
Quarterly	2017-06-30	1.91	+38.4%	USD/shares	10-Q	2018-08-09
Quarterly	2017-09-30	2.11	+10.5%	USD/shares	10-Q	2018-11-05
Quarterly	2018-03-31	1.93	-8.5%	USD/shares	10-Q	2019-05-08
Quarterly	2018-06-30	2.21	+14.5%	USD/shares	10-Q	2019-08-06
Quarterly	2018-09-30	1.84	-16.7%	USD/shares	10-Q	2019-11-05
Quarterly	2019-03-31	1.02	-44.6%	USD/shares	10-Q	2020-05-05
Quarterly	2019-06-30	1.34	+31.4%	USD/shares	10-Q	2020-08-04
Quarterly	2019-09-30	1.07	-20.1%	USD/shares	10-Q	2020-11-03
Quarterly	2020-03-31	0.68	-36.4%	USD/shares	10-Q	2021-05-05
Quarterly	2020-06-30	0.71	+4.4%	USD/shares	10-Q	2021-08-04
Quarterly	2020-09-30	0.66	-7.0%	USD/shares	10-Q	2021-11-03
Quarterly	2021-03-31	1.26	+90.9%	USD/shares	10-Q	2022-05-05
Quarterly	2021-06-30	1.29	+2.4%	USD/shares	10-Q	2022-08-03
Quarterly	2021-09-30	1.4	+8.5%	USD/shares	10-Q	2022-11-01
Quarterly	2022-03-31	1.31	-6.4%	USD/shares	10-Q	2023-05-02
Quarterly	2022-06-30	1.1	-16.0%	USD/shares	10-Q	2023-08-01
Quarterly	2022-09-30	1.47	+33.6%	USD/shares	10-Q	2023-10-31
Quarterly	2023-03-31	1.26	-14.3%	USD/shares	10-Q	2024-04-30
Quarterly	2023-06-30	1.31	+4.0%	USD/shares	10-Q	2024-07-30
Quarterly	2023-09-30	1.16	-11.5%	USD/shares	10-Q	2024-10-29
Quarterly	2024-03-31	0.52	-55.2%	USD/shares	10-Q	2025-05-06
Quarterly	2024-06-30	0.45	-13.5%	USD/shares	10-Q	2025-08-05
Quarterly	2024-09-30	-5.33	-1284.4%	USD/shares	10-Q	2025-11-04
Quarterly	2025-03-31	0.09	+101.7%	USD/shares	10-Q	2025-05-06
Quarterly	2025-06-30	0.16	+77.8%	USD/shares	10-Q	2025-08-05
Quarterly	2025-09-30	0.18	+12.5%	USD/shares	10-Q	2025-11-04
Annual	2016-12-31	4.85	—	USD/shares	10-K	2019-02-27
Annual	2017-12-31	6.36	+31.1%	USD/shares	10-K	2020-02-24
Annual	2018-12-31	7.38	+16.0%	USD/shares	10-K	2021-02-22
Annual	2019-12-31	3.35	-54.6%	USD/shares	10-K	2022-02-22
Annual	2020-12-31	2.97	-11.3%	USD/shares	10-K	2023-02-27
Annual	2021-12-31	5.16	+73.7%	USD/shares	10-K	2024-02-21
Annual	2022-12-31	2.16	-58.1%	USD/shares	10-K	2025-02-20
Annual	2023-12-31	4.63	+114.4%	USD/shares	10-K	2026-02-23
Annual	2024-12-31	-4.09	-188.3%	USD/shares	10-K	2026-02-23
Annual	2025-12-31	0.73	+117.8%	USD/shares	10-K	2026-02-23

Balance Sheet

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Quarterly	2016-03-31	17167000.0	—	USD	10-Q	2016-05-09
Quarterly	2016-06-30	39229000.0	+128.5%	USD	10-Q	2016-08-08
Quarterly	2016-09-30	38432000.0	-2.0%	USD	10-Q	2016-11-02
Quarterly	2016-12-31	37635000.0	-2.1%	USD	10-Q	2017-11-07
Quarterly	2017-03-31	36839000.0	-2.1%	USD	10-Q	2017-05-08
Quarterly	2017-06-30	21375000.0	-42.0%	USD	10-Q	2017-08-08
Quarterly	2017-09-30	46296000.0	+116.6%	USD	10-Q	2017-11-07
Quarterly	2017-12-31	45378000.0	-2.0%	USD	10-Q	2018-11-05
Quarterly	2018-03-31	44466000.0	-2.0%	USD	10-Q	2018-05-04
Quarterly	2018-06-30	43551000.0	-2.1%	USD	10-Q	2018-08-09
Quarterly	2018-09-30	42631000.0	-2.1%	USD	10-Q	2018-11-05
Quarterly	2018-12-31	41707000.0	-2.2%	USD	10-Q	2019-11-05
Quarterly	2019-03-31	40779000.0	-2.2%	USD	10-Q	2019-05-08
Quarterly	2019-06-30	39846000.0	-2.3%	USD	10-Q	2019-08-06
Quarterly	2019-09-30	38909000.0	-2.4%	USD	10-Q	2019-11-05
Quarterly	2019-12-31	41708000.0	+7.2%	USD	10-Q	2020-11-03
Quarterly	2020-03-31	40779000.0	-2.2%	USD	10-Q	2020-05-05
Quarterly	2020-06-30	39846000.0	-2.3%	USD	10-Q	2020-08-04
Quarterly	2020-09-30	38909000.0	-2.4%	USD	10-Q	2020-11-03
Quarterly	2020-12-31	37967000.0	-2.4%	USD	10-Q	2021-11-03
Quarterly	2021-03-31	37021000.0	-2.5%	USD	10-Q	2021-05-05
Quarterly	2021-06-30	36071000.0	-2.6%	USD	10-Q	2021-08-04
Quarterly	2021-09-30	35116000.0	-2.6%	USD	10-Q	2021-11-03
Quarterly	2021-12-31	34157000.0	-2.7%	USD	10-Q	2022-11-01
Quarterly	2022-03-31	33193000.0	-2.8%	USD	10-Q	2022-05-05
Quarterly	2022-06-30	32225000.0	-2.9%	USD	10-Q	2022-08-03
Quarterly	2022-09-30	16328000.0	-49.3%	USD	10-Q	2022-11-01
Quarterly	2022-12-31	16031000.0	-1.8%	USD	10-Q	2023-08-01
Quarterly	2023-03-31	15734000.0	-1.9%	USD	10-Q	2023-05-02
Annual	2016-12-31	37635000.0	—	USD	10-K	2018-02-28
Annual	2017-12-31	45378000.0	+20.6%	USD	10-K	2019-02-27
Annual	2018-12-31	45378000.0	+0.0%	USD	10-K	2020-02-24
Annual	2019-12-31	41708000.0	-8.1%	USD	10-K	2021-02-22
Annual	2020-12-31	37967000.0	-9.0%	USD	10-K	2022-02-22
Annual	2021-12-31	34157000.0	-10.0%	USD	10-K	2023-02-27
Annual	2022-12-31	16031000.0	-53.1%	USD	10-K	2023-02-27

Cash Flow

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Quarterly	2016-03-31	24960000.0	—	USD	10-Q	2017-05-08
Quarterly	2016-06-30	70863000.0	+183.9%	USD	10-Q	2017-08-08
Quarterly	2016-09-30	100047000.0	+41.2%	USD	10-Q	2017-11-07
Quarterly	2017-03-31	21875000.0	-78.1%	USD	10-Q	2018-05-04
Quarterly	2017-06-30	43632000.0	+99.5%	USD	10-Q	2018-08-09
Quarterly	2017-09-30	99221000.0	+127.4%	USD	10-Q	2018-11-05
Quarterly	2018-03-31	39113000.0	-60.6%	USD	10-Q	2019-05-08
Quarterly	2018-06-30	96516000.0	+146.8%	USD	10-Q	2019-08-06
Quarterly	2018-09-30	133355000.0	+38.2%	USD	10-Q	2019-11-05
Quarterly	2019-03-31	32988000.0	-75.3%	USD	10-Q	2020-05-05
Quarterly	2019-06-30	86492000.0	+162.2%	USD	10-Q	2020-08-04
Quarterly	2019-09-30	107540000.0	+24.3%	USD	10-Q	2020-11-03
Quarterly	2020-03-31	17801000.0	-83.4%	USD	10-Q	2021-05-05
Quarterly	2020-06-30	37370000.0	+109.9%	USD	10-Q	2021-08-04
Quarterly	2020-09-30	61871000.0	+65.6%	USD	10-Q	2021-11-03
Quarterly	2021-03-31	27421000.0	-55.7%	USD	10-Q	2022-05-05
Quarterly	2021-06-30	54344000.0	+98.2%	USD	10-Q	2022-08-03
Quarterly	2021-09-30	93857000.0	+72.7%	USD	10-Q	2022-11-01
Quarterly	2022-03-31	25177000.0	-73.2%	USD	10-Q	2023-05-02
Quarterly	2022-06-30	59903000.0	+137.9%	USD	10-Q	2023-08-01
Quarterly	2022-09-30	84552000.0	+41.1%	USD	10-Q	2023-10-31
Quarterly	2023-03-31	33404000.0	-60.5%	USD	10-Q	2024-04-30
Quarterly	2023-06-30	59139000.0	+77.0%	USD	10-Q	2024-07-30
Quarterly	2023-09-30	85256000.0	+44.2%	USD	10-Q	2024-10-29
Quarterly	2024-03-31	28052000.0	-67.1%	USD	10-Q	2025-05-06
Quarterly	2024-06-30	52270000.0	+86.3%	USD	10-Q	2025-08-05
Quarterly	2024-09-30	75358000.0	+44.2%	USD	10-Q	2025-11-04
Quarterly	2025-03-31	24818000.0	-67.1%	USD	10-Q	2025-05-06
Quarterly	2025-06-30	40176000.0	+61.9%	USD	10-Q	2025-08-05
Quarterly	2025-09-30	60907000.0	+51.6%	USD	10-Q	2025-11-04
Annual	2016-12-31	127042000.0	—	USD	10-K	2019-02-27
Annual	2017-12-31	126535000.0	-0.4%	USD	10-K	2020-02-24
Annual	2018-12-31	160343000.0	+26.7%	USD	10-K	2021-02-22
Annual	2019-12-31	133536000.0	-16.7%	USD	10-K	2022-02-22
Annual	2020-12-31	87696000.0	-34.3%	USD	10-K	2023-02-27
Annual	2021-12-31	123108000.0	+40.4%	USD	10-K	2024-02-21
Annual	2022-12-31	110141000.0	-10.5%	USD	10-K	2025-02-20
Annual	2023-12-31	110483000.0	+0.3%	USD	10-K	2026-02-23
Annual	2024-12-31	98524000.0	-10.8%	USD	10-K	2026-02-23
Annual	2025-12-31	78798000.0	-20.0%	USD	10-K	2026-02-23

Share Data

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Quarterly	2016-03-31	53621000.0	—	shares	10-Q	2017-05-08
Quarterly	2016-06-30	53788000.0	+0.3%	shares	10-Q	2017-08-08
Quarterly	2016-09-30	53761000.0	-0.1%	shares	10-Q	2017-11-07
Quarterly	2017-03-31	54370000.0	+1.1%	shares	10-Q	2018-05-04
Quarterly	2017-06-30	54471000.0	+0.2%	shares	10-Q	2018-08-09
Quarterly	2017-09-30	54698000.0	+0.4%	shares	10-Q	2018-11-05
Quarterly	2018-03-31	55182000.0	+0.9%	shares	10-Q	2019-05-08
Quarterly	2018-06-30	54992000.0	-0.3%	shares	10-Q	2019-08-06
Quarterly	2018-09-30	54696000.0	-0.5%	shares	10-Q	2019-11-05
Quarterly	2019-03-31	53874000.0	-1.5%	shares	10-Q	2020-05-05
Quarterly	2019-06-30	53848000.0	-0.0%	shares	10-Q	2020-08-04
Quarterly	2019-09-30	53622000.0	-0.4%	shares	10-Q	2020-11-03
Quarterly	2020-03-31	53676000.0	+0.1%	shares	10-Q	2021-05-05
Quarterly	2020-06-30	53530000.0	-0.3%	shares	10-Q	2021-08-04
Quarterly	2020-09-30	53663640.0	+0.2%	shares	10-Q	2021-11-03
Quarterly	2021-03-31	54201182.0	+1.0%	shares	10-Q	2022-05-05
Quarterly	2021-06-30	53998982.0	-0.4%	shares	10-Q	2022-08-03
Quarterly	2021-09-30	53833752.0	-0.3%	shares	10-Q	2022-11-01
Quarterly	2022-03-31	53099539.0	-1.4%	shares	10-Q	2023-05-02
Quarterly	2022-06-30	51794948.0	-2.5%	shares	10-Q	2023-08-01
Quarterly	2022-09-30	51736990.0	-0.1%	shares	10-Q	2023-10-31
Quarterly	2023-03-31	47776121.0	-7.7%	shares	10-Q	2024-04-30
Quarterly	2023-06-30	47453260.0	-0.7%	shares	10-Q	2024-07-30
Quarterly	2023-09-30	47388119.0	-0.1%	shares	10-Q	2024-10-29
Quarterly	2024-03-31	46174518.0	-2.6%	shares	10-Q	2025-05-06
Quarterly	2024-06-30	45012474.0	-2.5%	shares	10-Q	2025-08-05
Quarterly	2024-09-30	43837357.0	-2.6%	shares	10-Q	2025-11-04
Quarterly	2025-03-31	42831786.0	-2.3%	shares	10-Q	2025-05-06
Quarterly	2025-06-30	42577327.0	-0.6%	shares	10-Q	2025-08-05
Quarterly	2025-09-30	42556317.0	-0.0%	shares	10-Q	2025-11-04
Annual	2016-12-31	53797000.0	—	shares	10-K	2019-02-27
Annual	2017-12-31	54699000.0	+1.7%	shares	10-K	2020-02-24
Annual	2018-12-31	54726000.0	+0.0%	shares	10-K	2021-02-22
Annual	2019-12-31	53839423.0	-1.6%	shares	10-K	2022-02-22
Annual	2020-12-31	53784878.0	-0.1%	shares	10-K	2023-02-27
Annual	2021-12-31	53930227.0	+0.3%	shares	10-K	2024-02-21
Annual	2022-12-31	50924742.0	-5.6%	shares	10-K	2025-02-20
Annual	2023-12-31	47320075.0	-7.1%	shares	10-K	2026-02-23
Annual	2024-12-31	44335857.0	-6.3%	shares	10-K	2026-02-23
Annual	2025-12-31	42649712.0	-3.8%	shares	10-K	2026-02-23

Credit and Bond Coverage

Company-level

Long-Term Debt (latest annual)

16,031,000

Total Liabilities (latest annual)

296,150,000

Current Liabilities (latest annual)

234,037,000

Metrics

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Quarterly	2016-03-31	0.0366	—	ratio	10-Q	2017-05-08
Quarterly	2016-06-30	0.0471	+28.6%	ratio	10-Q	2017-08-08
Quarterly	2016-09-30	0.0461	-2.2%	ratio	10-Q	2017-11-07
Quarterly	2017-03-31	0.0450	-2.4%	ratio	10-Q	2018-05-04
Quarterly	2017-06-30	0.0577	+28.3%	ratio	10-Q	2018-08-09
Quarterly	2017-09-30	0.0590	+2.3%	ratio	10-Q	2018-11-05
Quarterly	2018-03-31	0.0496	-16.0%	ratio	10-Q	2019-08-06
Quarterly	2018-06-30	0.0560	+13.0%	ratio	10-Q	2019-08-06
Quarterly	2018-09-30	0.0457	-18.5%	ratio	10-Q	2019-11-05
Quarterly	2019-03-31	0.0242	-47.0%	ratio	10-Q	2020-05-05
Quarterly	2019-06-30	0.0306	+26.5%	ratio	10-Q	2020-08-04
Quarterly	2019-09-30	0.0240	-21.7%	ratio	10-Q	2020-11-03
Quarterly	2020-03-31	0.0156	-35.0%	ratio	10-Q	2021-05-05
Quarterly	2020-06-30	0.0157	+0.9%	ratio	10-Q	2021-08-04
Quarterly	2020-09-30	0.0144	-8.7%	ratio	10-Q	2021-11-03
Quarterly	2021-03-31	0.0258	+79.7%	ratio	10-Q	2022-05-05
Quarterly	2021-06-30	0.0257	-0.3%	ratio	10-Q	2022-08-03
Quarterly	2021-09-30	0.0273	+5.9%	ratio	10-Q	2022-11-01
Quarterly	2022-03-31	0.0257	-5.7%	ratio	10-Q	2023-05-02
Quarterly	2022-06-30	0.0217	-15.5%	ratio	10-Q	2023-08-01
Quarterly	2022-09-30	0.0297	+36.9%	ratio	10-Q	2023-10-31
Quarterly	2023-03-31	0.0257	-13.5%	ratio	10-Q	2024-04-30
Quarterly	2023-06-30	0.0260	+1.0%	ratio	10-Q	2024-07-30
Quarterly	2023-09-30	0.0231	-11.2%	ratio	10-Q	2024-10-29
Quarterly	2024-03-31	0.0103	-55.4%	ratio	10-Q	2025-05-06
Quarterly	2024-06-30	0.0089	-13.1%	ratio	10-Q	2025-08-05
Quarterly	2024-09-30	-0.1105	-1335.1%	ratio	10-Q	2025-11-04
Quarterly	2025-03-31	0.0018	+101.7%	ratio	10-Q	2025-05-06
Quarterly	2025-06-30	0.0031	+72.1%	ratio	10-Q	2025-08-05
Quarterly	2025-09-30	0.0035	+13.0%	ratio	10-Q	2025-11-04
Annual	2016-12-31	0.1674	—	ratio	10-K	2019-02-27
Annual	2017-12-31	0.1719	+2.7%	ratio	10-K	2020-02-24
Annual	2018-12-31	0.1832	+6.6%	ratio	10-K	2021-02-22
Annual	2019-12-31	0.0750	-59.0%	ratio	10-K	2022-02-22
Annual	2020-12-31	0.0618	-17.6%	ratio	10-K	2023-02-27
Annual	2021-12-31	0.1011	+63.6%	ratio	10-K	2024-02-21
Annual	2022-12-31	0.0464	-54.1%	ratio	10-K	2025-02-20
Annual	2023-12-31	0.0906	+95.2%	ratio	10-K	2026-02-23
Annual	2024-12-31	-0.0897	-198.9%	ratio	10-K	2026-02-23
Annual	2025-12-31	0.0146	+116.3%	ratio	10-K	2026-02-23

8-K Material Event Details

54 filings · 120 item records

This 8-K section tracks corporate event disclosures, not insider buy/sell sentiment. Insider trading direction is shown in the insider section below.

Event Type Distribution

Count per 8-K item

Insider Transaction History

910 transaction records

Net Insider Flow

Monthly open-market buy value minus open-market sell value

Monthly Insider Activity Mix

Share volume split between open-market trades, grants, and exercises

Transaction Value Timeline

Each circle = one priced transaction; size ∝ value X-axis date:

All Transactions

Date	Insider	Title	Type	Security	Shares	Price	Total Value	Post-Tx Shares
2026-03-17	Buttarazzi Mary E.	VP, Corp Controller and CAO	Open-market sell S	Common Stock	500	$116.22	$58,110	4,749
2026-03-01	Gitin Mark Milton	CEO	Other disposed transaction F	Common Stock	7,603	$131.57	$1,000,327	91,873
2026-02-24	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	1,520	$137.00	$208,240	6,529,002
2026-02-24	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	100	$135.28	$13,528	6,530,522
2026-02-24	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	600	$139.95	$83,970	58,495
2026-02-24	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	400	$138.33	$55,332	59,095
2026-02-24	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	1,500	$137.13	$205,695	59,495
2026-02-24	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	200	$135.72	$27,144	60,995
2026-02-23	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	120	$134.95	$16,194	6,530,622
2026-02-23	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	16,421	$134.35	$2,206,161	6,530,742
2026-02-23	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	7,994	$133.61	$1,068,078	6,547,163
2026-02-23	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	4,604	$132.31	$609,155	6,555,157
2026-02-23	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	4,241	$131.41	$557,310	6,559,761
2026-02-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	5,484	$132.94	$729,043	6,564,002
2026-02-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	16,422	$132.21	$2,171,153	6,569,486
2026-02-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	4,461	$131.11	$584,882	6,585,908
2026-02-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	2,300	$129.93	$298,839	6,590,369
2026-02-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	500	$128.79	$64,395	6,592,669
2026-02-18	Buttarazzi Mary E.	VP, Corp Controller and CAO	Equity grant / award A	Common Stock	1,789	$0.00	$0	5,684
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	390	$149.88	$58,453	6,726,599
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	220	$148.00	$32,560	6,726,989
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	410	$146.21	$59,946	6,727,209
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	480	$144.29	$69,259	6,727,619
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	137	$143.71	$19,688	6,728,099
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	376	$141.97	$53,381	6,728,236
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	100	$140.58	$14,058	6,728,612
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	760	$138.82	$105,503	6,728,712
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	790	$137.79	$108,854	6,729,472
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,393	$136.89	$190,688	6,730,262
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,381	$135.93	$187,719	6,731,655
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	125	$134.12	$16,765	6,733,036
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,035	$133.42	$538,350	6,733,161
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	15,882	$132.40	$2,102,777	6,737,196
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	8,383	$131.67	$1,103,790	6,753,078
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,931	$130.57	$643,841	6,761,461
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,931	$129.56	$509,300	6,766,392
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,012	$128.33	$643,190	6,770,323
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,354	$127.42	$554,787	6,775,335
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	6,820	$126.33	$861,571	6,779,689
2026-02-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	6,590	$125.40	$826,386	6,786,509
2026-02-13	SCHERBAKOV EUGENE A	Dir	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	7,592	$0.00	$0	0
2026-02-13	SCHERBAKOV EUGENE A	Dir	Other disposed transaction F	Common Stock	5,727	$153.91	$881,443	61,195
2026-02-13	SCHERBAKOV EUGENE A	Dir	Exercise / conversion M	Common Stock	7,592	$81.89	$621,709	66,922
2026-02-12	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	5,861	$0.00	$0	0
2026-02-12	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Other disposed transaction F	Common Stock	4,022	$150.25	$604,306	60,224
2026-02-12	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M	Common Stock	5,861	$81.89	$479,957	64,246
2026-02-02	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	750	$0.00	$0	0
2026-02-02	Meurice Eric	Dir	Open-market sell S	Common Stock	750	$95.00	$71,250	22,803
2026-02-02	Meurice Eric	Dir	Exercise / conversion M	Common Stock	750	$87.87	$65,902	23,553
2026-01-21	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	12,075	$81.65	$985,924	6,593,169
2026-01-21	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	1,306	$80.34	$104,924	6,605,244
2026-01-21	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,500	$85.00	$127,500	58,385
2026-01-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	13,960	$80.43	$1,122,803	6,606,550
2026-01-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	7,659	$78.92	$604,448	6,620,510
2026-01-16	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	14,656	$80.20	$1,175,411	6,628,169
2026-01-16	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	14,511	$79.54	$1,154,205	6,642,825
2026-01-15	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	7,381	$80.16	$591,661	6,793,099
2026-01-15	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	571	$79.38	$45,326	6,800,480
2026-01-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	700	$78.55	$54,985	6,801,051
2026-01-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	13,159	$77.63	$1,021,533	6,801,751
2026-01-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,667	$77.19	$283,056	6,814,910
2026-01-13	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	6,277	$77.70	$487,723	6,818,577
2026-01-13	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	16,752	$76.71	$1,285,046	6,824,854
2026-01-12	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,928	$76.69	$147,858	6,841,606
2026-01-12	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	16,065	$76.20	$1,224,153	6,843,534
2025-12-24	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	2,225	$75.11	$167,120	6,657,336
2025-12-24	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	10,560	$74.69	$788,726	6,659,561
2025-12-23	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	40	$75.00	$3,000	6,670,121
2025-12-23	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	28,405	$74.62	$2,119,581	6,670,161
2025-12-23	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	45	$74.99	$3,375	62,030
2025-12-23	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	2,655	$74.43	$197,612	62,075
2025-12-22	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	7	$76.69	$537	6,698,566
2025-12-22	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	6,870	$75.97	$521,914	6,698,573
2025-12-22	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	16,060	$75.20	$1,207,712	6,705,443
2025-12-16	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,412	$78.22	$110,447	6,859,599
2025-12-16	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	12,160	$77.44	$941,670	6,861,011
2025-12-16	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	13,544	$76.59	$1,037,335	6,873,171
2025-12-15	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	39,384	$77.63	$3,057,380	6,886,715
2025-12-09	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,500	$85.07	$127,605	59,885
2025-11-25	Agnes Tang	Dir	Open-market sell S	Common Stock	100	$77.25	$7,725	8,663
2025-11-25	Agnes Tang	Dir	Open-market sell S	Common Stock	1,781	$76.72	$136,638	8,763
2025-11-24	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	12	$76.98	$924	6,721,503
2025-11-24	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	30,346	$76.44	$2,319,648	6,721,515
2025-11-24	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	4,642	$75.83	$352,003	6,751,861
2025-11-24	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	1,945	$76.32	$148,442	64,730
2025-11-24	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	755	$75.30	$56,852	66,675
2025-11-21	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	1,145	$74.97	$85,841	6,756,503
2025-11-21	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	20,163	$74.65	$1,505,168	6,757,648
2025-11-21	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	7,859	$73.16	$574,964	6,777,811
2025-11-18	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	20,775	$76.45	$1,588,249	6,926,099
2025-11-18	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	27,126	$75.88	$2,058,321	6,946,874
2025-11-18	Ness Trevor	SVP, Chief Revenue Officer	Open-market sell S	Common Stock	1,681	$75.58	$127,050	37,206
2025-11-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,815	$79.33	$302,644	6,974,000
2025-11-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,852	$78.50	$380,882	6,977,815
2025-11-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	9,932	$76.63	$761,089	6,982,667
2025-11-06	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	750	$0.00	$0	750
2025-11-06	Meurice Eric	Dir	Open-market sell S	Common Stock	750	$92.00	$69,000	22,803
2025-11-06	Meurice Eric	Dir	Exercise / conversion M	Common Stock	750	$87.87	$65,902	23,553
2025-10-27	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,500	$87.13	$130,695	61,385
2025-10-21	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	12,540	$88.05	$1,104,147	6,785,670
2025-10-21	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	11,426	$87.77	$1,002,860	6,798,210
2025-10-21	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	359	$87.85	$31,538	67,430
2025-10-21	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	2,341	$87.61	$205,095	67,789
2025-10-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	1,148	$88.54	$101,644	6,809,636
2025-10-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	15,951	$87.88	$1,401,774	6,810,784
2025-10-20	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	6,543	$87.10	$569,895	6,826,735
2025-10-20	Ness Trevor	SVP, Sales & Strategic Bus Dev	Open-market sell S	Common Stock	65	$87.83	$5,709	38,887
2025-10-20	Ness Trevor	SVP, Sales & Strategic Bus Dev	Open-market sell S	Common Stock	1,263	$87.22	$110,159	38,952
2025-10-20	Ness Trevor	SVP, Sales & Strategic Bus Dev	Open-market sell S	Common Stock	350	$86.03	$30,110	40,215
2025-10-17	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	875	$85.71	$74,996	6,833,278
2025-10-17	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	15,684	$84.62	$1,327,180	6,834,153
2025-10-15	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	7,226	$85.97	$621,219	6,992,599
2025-10-15	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,166	$84.73	$437,715	6,999,825
2025-10-15	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,315	$84.24	$447,736	7,004,991
2025-10-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,436	$84.00	$288,624	7,010,306
2025-10-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	8,430	$83.22	$701,545	7,013,742
2025-10-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,002	$82.19	$246,734	7,022,172
2025-10-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,661	$80.96	$134,475	7,025,174
2025-10-13	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,050	$83.86	$88,053	7,026,835
2025-10-13	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	29,547	$83.23	$2,459,197	7,027,885
2025-10-13	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,667	$82.09	$136,844	7,057,432
2025-10-07	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	1,502	$0.00	$0	1,500
2025-10-07	Meurice Eric	Dir	Open-market sell S	Common Stock	828	$90.01	$74,528	22,803
2025-10-07	Meurice Eric	Dir	Open-market sell S	Common Stock	674	$89.24	$60,148	23,631
2025-10-07	Meurice Eric	Dir	Exercise / conversion M	Common Stock	1,502	$87.87	$131,981	24,305
2025-10-06	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,500	$85.17	$127,755	62,885
2025-09-23	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	1,145	$82.17	$94,085	70,130
2025-09-23	SCHERBAKOV EUGENE A	Dir	Open-market sell S	Common Stock	1,555	$81.54	$126,795	71,275
2025-09-22	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	26,470	$82.28	$2,177,952	6,849,837
2025-09-22	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	8,530	$81.53	$695,451	6,876,307
2025-09-19	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	20,181	$81.81	$1,651,008	6,884,837
2025-09-19	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	8,986	$80.78	$725,889	6,905,018
2025-09-18	Ness Trevor	SVP, Sales & Strategic Bus Dev	Open-market sell S	Common Stock	100	$83.15	$8,315	40,565
2025-09-18	Ness Trevor	SVP, Sales & Strategic Bus Dev	Open-market sell S	Common Stock	1,578	$82.61	$130,359	40,665
2025-09-16	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	14,180	$80.67	$1,143,901	7,059,099
2025-09-15	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	14,426	$81.15	$1,170,670	7,073,279
2025-09-15	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	37,894	$80.54	$3,051,983	7,087,705
2025-08-27	Ness Trevor	SVP, Sales & Strategic Bus Dev	Open-market sell S	Common Stock	674	$83.31	$56,151	42,243
2025-08-27	Ness Trevor	SVP, Sales & Strategic Bus Dev	Open-market sell S	Common Stock	1,004	$82.69	$83,021	42,917
2025-08-08	Bucher Paulus	SVP, Global Operations	Equity grant / award A	Common Stock	4,185	$0.00	$0	4,185
2025-06-18	Meurice Eric	Dir	Other disposed transaction F	Common Stock	272	$0.00	$0	22,803
2025-06-06	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	4,500	$69.28	$311,760	64,385
2025-06-05	Gitin Mark Milton	CEO	Other disposed transaction F	Common Stock	4,641	$0.00	$0	79,242
2025-05-20	Shcherbakov Eugene A	Dir	Open-market sell S	Common Stock	2,680	$66.28	$177,630	73,432
2025-05-20	Shcherbakov Eugene A	Dir	Open-market sell S	Common Stock	1,570	$65.55	$102,914	76,112
2025-05-20	Samartsev Igor	SVP, Chief Scientist	Equity grant / award A	Common Stock	3,759	$0.00	$0	113,265
2025-05-19	Shcherbakov Eugene A	Dir	Open-market sell S	Common Stock	4,250	$65.37	$277,822	77,682
2025-05-07	Shcherbakov Eugene A	Dir	Other disposed transaction F	Common Stock	602	$0.00	$0	72,830
2025-03-06	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,597	$63.33	$354,458	7,125,599
2025-03-06	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	69,403	$62.56	$4,341,852	7,131,196
2025-03-01	Shcherbakov Eugene A	Dir	Other disposed transaction F	Common Stock	10,750	$0.00	$0	81,932
2025-02-14	Burgomaster Thomas J	Chief Accounting Officer	Equity grant / award A	Common Stock	817	$0.00	$0	12,340
2024-06-18	Dougherty Greg	Dir	Equity grant / award A	Common Stock	3,022	$0.00	$0	12,139
2024-06-05	Gitin Mark Milton	CEO	Equity grant / award A	Common Stock	28,791	$0.00	$0	28,791
2024-05-30	Desmond Jeanmarie F.	Dir	Open-market sell S	Common Stock	985	$85.20	$83,922	4,319
2024-05-23	Meurice Eric	Dir	Other disposed transaction F	Common Stock	197	$86.03	$16,948	16,294
2024-05-07	Shcherbakov Eugene A	CEO	Other disposed transaction F	Common Stock	1,400	$0.00	$0	92,682
2024-04-29	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	788	$0.00	$0	0
2024-04-29	Meurice Eric	Dir	Open-market sell S	Common Stock	788	$89.30	$70,368	16,491
2024-04-29	Meurice Eric	Dir	Exercise / conversion M	Common Stock	788	$63.40	$49,959	17,279
2024-04-23	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,525	$86.17	$217,579	7,200,599
2024-04-23	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	6,475	$85.74	$555,166	7,203,124
2024-04-01	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	785	$0.00	$0	788
2024-04-01	Meurice Eric	Dir	Open-market sell S	Common Stock	785	$91.08	$71,498	16,491
2024-04-01	Meurice Eric	Dir	Exercise / conversion M	Common Stock	785	$63.40	$49,769	17,276
2024-03-25	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,962	$90.00	$176,580	7,209,599
2024-03-25	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	8,038	$89.45	$718,999	7,211,561
2024-03-07	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	785	$0.00	$0	1,573
2024-03-07	Meurice Eric	Dir	Open-market sell S	Common Stock	785	$90.00	$70,650	16,491
2024-03-07	Meurice Eric	Dir	Exercise / conversion M	Common Stock	785	$63.40	$49,769	17,276
2024-03-01	Burgomaster Thomas J	Chief Accounting Officer	Other disposed transaction F	Common Stock	602	$0.00	$0	11,523
2024-03-01	Burgomaster Thomas J	Chief Accounting Officer	Equity grant / award A	Common Stock	273	$0.00	$0	12,125
2024-02-23	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	200	$86.51	$17,302	7,219,599
2024-02-23	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	9,800	$85.66	$839,468	7,219,799
2024-02-16	Shcherbakov Eugene A	CEO	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	4,000	$0.00	$0	4,000
2024-02-16	Shcherbakov Eugene A	CEO	Open-market sell S	Common Stock	1,639	$88.44	$144,953	69,761
2024-02-16	Shcherbakov Eugene A	CEO	Open-market sell S	Common Stock	2,361	$87.14	$205,738	71,400
2024-02-16	Shcherbakov Eugene A	CEO	Exercise / conversion M	Common Stock	4,000	$71.77	$287,080	73,761
2024-02-16	Burgomaster Thomas J	Chief Accounting Officer	Equity grant / award A	Common Stock	3,165	$0.00	$0	11,852
2024-02-15	Shcherbakov Eugene A	CEO	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	5,000	$0.00	$0	8,000
2024-02-15	Shcherbakov Eugene A	CEO	Open-market sell S	Common Stock	3,450	$88.58	$305,601	69,761
2024-02-15	Shcherbakov Eugene A	CEO	Open-market sell S	Common Stock	1,550	$87.88	$136,214	73,211
2024-02-15	Shcherbakov Eugene A	CEO	Exercise / conversion M	Common Stock	5,000	$71.77	$358,850	74,761
2024-01-30	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	629	$0.00	$0	2,358
2024-01-30	Meurice Eric	Dir	Open-market sell S	Common Stock	629	$100.00	$62,900	16,491
2024-01-30	Meurice Eric	Dir	Exercise / conversion M	Common Stock	629	$63.40	$39,879	17,120
2024-01-29	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	813	$0.00	$0	2,987
2024-01-29	Meurice Eric	Dir	Open-market sell S	Common Stock	156	$100.00	$15,600	16,491
2024-01-29	Meurice Eric	Dir	Open-market sell S	Common Stock	657	$98.36	$64,623	16,647
2024-01-29	Meurice Eric	Dir	Exercise / conversion M	Common Stock	813	$63.40	$51,544	17,304
2023-12-29	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	913	$0.00	$0	4,585
2023-12-29	Meurice Eric	Dir	Open-market sell S	Common Stock	28	$110.35	$3,090	15,706
2023-12-29	Meurice Eric	Dir	Open-market sell S	Common Stock	885	$109.61	$97,005	15,734
2023-12-29	Meurice Eric	Dir	Exercise / conversion M	Common Stock	913	$63.40	$57,884	16,619
2023-12-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,127	$100.24	$112,970	7,229,599
2023-12-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	7,123	$99.36	$707,741	7,230,726
2023-12-01	Agnes Tang	Dir	Open-market sell S	Common Stock	402	$95.95	$38,572	3,763
2023-12-01	Agnes Tang	Dir	Open-market sell S	Common Stock	498	$95.08	$47,350	4,165
2023-11-29	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	785	$0.00	$0	5,498
2023-11-29	Meurice Eric	Dir	Open-market sell S	Common Stock	396	$97.31	$38,535	15,706
2023-11-29	Meurice Eric	Dir	Open-market sell S	Common Stock	389	$96.72	$37,624	16,102
2023-11-29	Meurice Eric	Dir	Exercise / conversion M	Common Stock	785	$63.40	$49,769	16,491
2023-11-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	8,250	$95.34	$786,555	7,237,849
2023-11-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	332	$92.84	$30,823	7,246,099
2023-11-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,866	$92.01	$263,701	7,246,431
2023-11-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,052	$91.47	$462,106	7,249,297
2023-11-03	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	785	$0.00	$0	6,283
2023-11-03	Meurice Eric	Dir	Open-market sell S	Common Stock	785	$90.00	$70,650	15,706
2023-11-03	Meurice Eric	Dir	Exercise / conversion M	Common Stock	785	$63.40	$49,769	16,491
2023-10-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,319	$92.20	$306,012	7,254,349
2023-10-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,931	$91.43	$450,841	7,257,668
2023-10-09	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	150	$96.39	$14,458	7,262,599
2023-10-09	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,503	$95.80	$527,187	7,262,749
2023-10-09	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,597	$95.06	$246,871	7,268,252
2023-09-29	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	785	$0.00	$0	7,068
2023-09-29	Meurice Eric	Dir	Open-market sell S	Common Stock	93	$102.72	$9,553	15,706
2023-09-29	Meurice Eric	Dir	Open-market sell S	Common Stock	692	$101.99	$70,577	15,799
2023-09-29	Meurice Eric	Dir	Exercise / conversion M	Common Stock	785	$63.40	$49,769	16,491
2023-09-25	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	8,250	$100.00	$825,000	7,270,849
2023-09-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,771	$102.51	$181,545	7,279,099
2023-09-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	6,479	$101.71	$658,979	7,280,870
2023-08-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	262	$103.88	$27,217	7,287,349
2023-08-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,383	$103.24	$246,021	7,287,611
2023-08-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,605	$102.30	$573,392	7,289,994
2023-08-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,052	$110.03	$445,842	7,295,599
2023-08-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,198	$109.47	$459,555	7,299,651
2023-08-04	KENNEDY KOLLEEN T	Dir	Equity grant / award A	Common Stock	2,296	$108.88	$249,988	2,296
2023-07-31	Meurice Eric	Dir	Open-market sell S	Common Stock	12	$132.90	$1,595	15,706
2023-07-31	Meurice Eric	Dir	Open-market sell S	Common Stock	293	$132.25	$38,749	15,718
2023-07-31	Meurice Eric	Dir	Open-market sell S	Common Stock	480	$131.27	$63,010	16,011
2023-07-31	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	785	$0.00	$0	7,068
2023-07-31	Meurice Eric	Dir	Open-market sell S	Common Stock	12	$132.90	$1,595	16,491
2023-07-31	Meurice Eric	Dir	Open-market sell S	Common Stock	293	$132.25	$38,749	16,503
2023-07-31	Meurice Eric	Dir	Open-market sell S	Common Stock	480	$131.27	$63,010	16,796
2023-07-31	Meurice Eric	Dir	Exercise / conversion M	Common Stock	785	$63.40	$49,769	17,276
2023-07-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,652	$132.44	$218,791	7,303,849
2023-07-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,174	$131.50	$285,881	7,305,501
2023-07-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	619	$130.63	$80,860	7,307,675
2023-07-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,181	$129.50	$282,440	7,308,294
2023-07-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,624	$128.36	$208,457	7,310,475
2023-07-12	Ovtchinnikov Alexander	SVP, Chief Technology Officer	Open-market sell S	Common Stock	1,934	$140.00	$270,760	63,995
2023-07-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,393	$134.19	$321,117	7,312,099
2023-07-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,583	$133.70	$746,447	7,314,492
2023-07-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	274	$132.27	$36,242	7,320,075
2023-06-29	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	785	$0.00	$0	7,853
2023-06-29	Meurice Eric	Dir	Open-market sell S	Common Stock	401	$133.89	$53,690	16,491
2023-06-29	Meurice Eric	Dir	Open-market sell S	Common Stock	384	$133.32	$51,195	16,892
2023-06-29	Meurice Eric	Dir	Exercise / conversion M	Common Stock	785	$63.40	$49,769	17,276
2023-06-26	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	57	$133.49	$7,609	7,320,349
2023-06-26	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	444	$132.62	$58,883	7,320,406
2023-06-26	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,609	$131.83	$607,604	7,320,850
2023-06-26	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,091	$130.81	$273,524	7,325,459
2023-06-26	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,049	$129.78	$136,139	7,327,550
2023-06-20	Ovtchinnikov Alexander	SVP, Chief Technology Officer	Open-market sell S	Common Stock	3,822	$135.85	$519,219	65,929
2023-06-14	Meurice Eric	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	785	$0.00	$0	8,638
2023-06-14	Meurice Eric	Dir	Open-market sell S	Common Stock	785	$121.89	$95,684	16,491
2023-06-14	Meurice Eric	Dir	Exercise / conversion M	Common Stock	785	$63.40	$49,769	17,276
2023-06-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	154	$113.42	$17,467	7,328,599
2023-06-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,976	$112.92	$336,050	7,328,753
2023-06-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,120	$111.91	$572,979	7,331,729
2023-05-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	913	$112.30	$102,530	7,336,849
2023-05-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	666	$111.05	$73,959	7,337,762
2023-05-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,676	$110.17	$184,645	7,338,428
2023-05-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,995	$109.22	$545,554	7,340,104
2023-05-23	Beecher Gregory R	Dir	Equity grant / award A	Common Stock	1,094	$0.00	$0	2,999
2023-05-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	409	$117.00	$47,853	7,345,099
2023-05-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	7,841	$115.98	$909,399	7,345,508
2023-05-07	Shcherbakov Eugene A	CEO	Other disposed transaction F	Common Stock	602	$0.00	$0	69,761
2023-04-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,800	$114.74	$206,532	7,353,349
2023-04-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	6,450	$113.96	$735,042	7,355,149
2023-04-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	7,562	$115.85	$876,058	7,361,599
2023-04-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	688	$114.91	$79,058	7,369,161
2023-03-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	84	$116.82	$9,813	7,369,849
2023-03-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,537	$116.26	$294,952	7,369,933
2023-03-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,629	$115.29	$648,967	7,372,470
2023-03-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,167	$122.57	$633,319	7,378,099
2023-03-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	11,333	$122.03	$1,382,966	7,383,266
2023-03-01	Samartsev Igor	SVP, Chief Scientist	Other disposed transaction F	Common Stock	692	$0.00	$0	268,480
2023-03-01	Samartsev Igor	SVP, Chief Scientist	Equity grant / award A	Common Stock	618	$0.00	$0	269,172
2023-02-17	Mammen Timothy PV	SVP, Chief Financial Officer	Equity grant / award A	Common Stock	6,160	$0.00	$0	59,653
2023-02-14	Shcherbakov Eugene A	CEO	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	3,000	$0.00	$0	0
2023-02-14	Shcherbakov Eugene A	CEO	Open-market sell S	Common Stock	3,000	$120.00	$360,000	57,170
2023-02-14	Shcherbakov Eugene A	CEO	Exercise / conversion M	Common Stock	3,000	$60.11	$180,330	60,170
2023-01-12	STUKALIN FELIX I	SVP, Chief Operating Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	5,000	$0.00	$0	0
2023-01-12	STUKALIN FELIX I	SVP, Chief Operating Officer	Exercise / conversion M	Common Stock	5,000	$60.11	$300,550	31,298
2022-09-28	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,036	$85.81	$174,709	7,394,599
2022-09-28	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,964	$85.01	$251,970	7,396,635
2022-09-21	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,000	$89.50	$89,500	7,399,599
2022-09-21	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,000	$88.98	$355,920	7,400,599
2022-09-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	909	$88.84	$80,756	7,404,599
2022-09-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,791	$87.93	$245,413	7,405,508
2022-09-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,300	$86.48	$112,424	7,408,299
2022-09-07	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,321	$88.54	$294,041	7,409,599
2022-09-07	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,679	$87.36	$146,677	7,412,920
2022-08-31	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	417	$91.93	$38,335	7,414,599
2022-08-31	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,583	$91.56	$419,619	7,415,016
2022-08-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	209	$96.29	$20,125	7,419,599
2022-08-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,791	$95.65	$458,259	7,419,808
2022-08-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	344	$101.00	$34,744	7,424,599
2022-08-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,054	$100.16	$105,569	7,424,943
2022-08-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,602	$99.21	$357,354	7,425,997
2022-08-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,000	$101.77	$508,850	7,429,599
2022-08-03	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,735	$103.04	$487,894	7,434,599
2022-08-03	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	265	$101.66	$26,940	7,439,334
2022-06-16	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market buy P	Common Stock	3,000	$83.54	$250,620	53,493
2022-05-24	Meurice Eric	Dir	Equity grant / award A	Common Stock	2,631	$0.00	$0	14,540
2022-05-24	Meurice Eric	Dir	Other disposed transaction F	Common Stock	109	$95.02	$10,357	11,909
2022-05-07	Shcherbakov Eugene A	CEO	Other disposed transaction F	Common Stock	602	$101.00	$60,802	57,170
2022-05-06	Agnes Tang	Dir	Equity grant / award A	Common Stock	2,475	$101.00	$249,975	2,475
2022-03-01	Shcherbakov Eugene A	CEO	Other disposed transaction F	Common Stock	2,804	$121.52	$340,742	57,772
2022-02-18	Mammen Timothy PV	SVP, Chief Financial Officer	Equity grant / award A	Common Stock	5,706	$0.00	$0	51,481
2022-02-09	Shcherbakov Eugene A	CEO	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,500	$0.00	$0	0
2022-02-09	Shcherbakov Eugene A	CEO	Open-market sell S	Common Stock	1,500	$152.30	$228,450	42,303
2022-02-09	Shcherbakov Eugene A	CEO	Exercise / conversion M	Common Stock	1,500	$58.65	$87,975	43,803
2022-01-03	Samartsev Igor	SVP, Chief Technology Officer	Open-market sell S	Common Stock	500	$172.35	$86,175	1,200
2021-11-16	CHILD MICHAEL C	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	6,500	$0.00	$0	0
2021-11-16	CHILD MICHAEL C	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	6,667	$0.00	$0	0
2021-11-16	CHILD MICHAEL C	Dir	Exercise / conversion M	Common Stock	6,500	$60.00	$390,000	54,284
2021-11-16	CHILD MICHAEL C	Dir	Exercise / conversion M	Common Stock	6,667	$42.43	$282,881	47,784
2021-10-01	Samartsev Igor	SVP, Chief Technology Officer	Open-market sell S	Common Stock	500	$159.27	$79,635	1,700
2021-09-16	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	4,039	$171.13	$691,194	6,914,004
2021-09-16	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	6,661	$170.24	$1,133,969	6,918,043
2021-09-15	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	5,556	$172.71	$959,577	6,924,704
2021-09-15	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	6,944	$171.91	$1,193,743	6,930,260
2021-08-02	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	1,800	$220.06	$396,108	6,937,204
2021-07-01	Samartsev Igor	SVP, Chief Technology Officer	Open-market sell S	Common Stock	500	$211.61	$105,805	2,200
2021-06-16	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	5,044	$210.20	$1,060,249	6,939,004
2021-06-11	Samartsev Igor	SVP, Chief Technology Officer	Equity grant / award G	Common Stock	5,250	$0.00	$0	132,700
2021-06-01	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	4,074	$210.06	$855,784	6,944,048
2021-05-28	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	12,500	$210.04	$2,625,500	6,948,122
2021-05-25	Pavlova Natalia	Chief Technology Officer	Equity grant / award A	Common Stock	600	$0.00	$0	151,665
2021-05-20	CHILD MICHAEL C	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	6,667	$0.00	$0	0
2021-05-20	CHILD MICHAEL C	Dir	Exercise / conversion M	Common Stock	6,667	$75.15	$501,025	39,916
2021-05-07	Shcherbakov Eugene A	CEO	Equity grant / award A	Common Stock	5,068	$0.00	$0	42,303
2021-04-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,968	$0.00	$0	0
2021-04-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	2,938	$225.10	$661,344	16,183
2021-04-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	1,968	$119.50	$235,176	19,121
2021-04-01	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	500	$213.04	$106,520	2,700
2021-03-15	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	2,669	$214.84	$573,408	40,265
2021-03-11	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,666	$0.00	$0	0
2021-03-11	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	300	$214.84	$64,452	45,775
2021-03-11	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	946	$214.21	$202,643	46,075
2021-03-11	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	160	$212.56	$34,010	47,021
2021-03-11	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	100	$210.36	$21,036	47,341
2021-03-11	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	1,666	$119.50	$199,087	47,441
2021-03-10	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	534	$0.00	$0	1,666
2021-03-10	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	25	$211.36	$5,284	45,775
2021-03-10	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	509	$210.20	$106,992	45,800
2021-03-10	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	534	$119.50	$63,813	46,309
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	5,000	$0.00	$0	5,000
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,495	$0.00	$0	0
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	621	$209.04	$129,814	22,432
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	1,135	$208.38	$236,511	23,053
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	2,884	$207.48	$598,372	24,188
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	955	$206.34	$197,055	27,072
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	500	$205.22	$102,610	28,027
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	400	$202.53	$81,012	28,527
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Exercise / conversion M	Common Stock	5,000	$60.11	$300,550	28,927
2021-03-09	STUKALIN FELIX I	SVP, North America Operations	Exercise / conversion M	Common Stock	1,495	$58.65	$87,682	23,927
2021-03-09	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	1,800	$209.20	$376,560	6,989,004
2021-03-09	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	6,000	$208.67	$1,252,020	6,990,804
2021-03-09	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	10,600	$207.47	$2,199,182	6,996,804
2021-03-09	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	4,101	$206.52	$846,939	7,007,404
2021-03-09	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	2,099	$205.38	$431,093	7,011,505
2021-03-09	IP FIBRE DEVICES LTD	10%	Open-market sell S	Common Stock	400	$204.42	$81,768	7,013,604
2021-03-08	STUKALIN FELIX I	SVP, North America Operations	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,505	$0.00	$0	1,495
2021-03-08	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	229	$206.19	$47,218	22,432
2021-03-08	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	917	$205.09	$188,068	22,661
2021-03-08	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	359	$201.66	$72,396	23,578
2021-03-08	STUKALIN FELIX I	SVP, North America Operations	Exercise / conversion M	Common Stock	1,505	$58.65	$88,268	23,937
2021-03-01	Samartsev Igor	Chief Technology Officer	Other disposed transaction F	Common Stock	531	$228.77	$121,477	355,420
2021-02-19	Burgomaster Thomas J	Chief Accounting Officer	Equity grant / award A	Common Stock	906	$0.00	$0	7,106
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	7,326	$0.00	$0	0
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	6,599	$0.00	$0	2,200
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	106	$258.58	$27,409	43,969
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	477	$257.87	$123,004	44,075
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	299	$256.47	$76,685	44,552
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	250	$254.64	$63,660	44,851
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	266	$253.48	$67,426	45,101
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	932	$252.52	$235,349	45,367
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	3,910	$251.49	$983,326	46,299
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	6,777	$250.85	$1,700,010	50,209
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	908	$249.89	$226,900	56,986
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	7,326	$97.65	$715,384	57,894
2021-01-20	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	6,599	$119.50	$788,580	50,568
2021-01-07	Samartsev Igor	Chief Technology Officer	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	6,500	$0.00	$0	0
2021-01-07	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	1,300	$231.37	$300,781	354,891
2021-01-07	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	5,200	$230.25	$1,197,300	356,191
2021-01-07	Samartsev Igor	Chief Technology Officer	Exercise / conversion M	Common Stock	6,500	$71.77	$466,505	361,391
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	5	$227.25	$1,136	2,939
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	96	$226.72	$21,765	2,944
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	137	$225.59	$30,906	3,040
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	376	$224.59	$84,446	3,177
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	527	$223.86	$117,974	3,553
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	29	$221.25	$6,416	4,242
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	1,564	$219.91	$343,939	4,271
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	596	$218.66	$130,321	5,835
2021-01-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	162	$222.75	$36,086	4,080
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	4,000	$0.00	$0	3,871
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	227	$226.29	$51,368	15,407
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	457	$225.52	$103,063	15,634
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	172	$224.35	$38,588	16,091
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	100	$222.90	$22,290	16,263
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	118	$221.86	$26,179	16,363
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	795	$220.46	$175,266	16,481
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	372	$219.56	$81,676	17,276
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	767	$218.44	$167,543	17,648
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	992	$217.56	$215,820	18,415
2021-01-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	4,000	$119.50	$478,000	19,407
2020-12-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	14,530	$216.93	$3,151,993	7,439,599
2020-12-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	17,361	$216.47	$3,758,136	7,454,129
2020-12-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,500	$215.03	$322,545	7,471,490
2020-12-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,209	$214.15	$473,057	7,472,990
2020-12-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,543	$213.18	$755,297	7,475,199
2020-12-17	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,857	$212.28	$818,764	7,478,742
2020-12-15	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	961	$210.26	$202,060	59,127
2020-12-14	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	107	$212.22	$22,708	60,088
2020-12-14	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	2,008	$211.47	$424,632	60,195
2020-12-14	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	4,245	$210.27	$892,596	62,203
2020-12-07	SEIFERT THOMAS J	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	1,869	$0.00	$0	0
2020-12-07	SEIFERT THOMAS J	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	2,339	$0.00	$0	0
2020-12-07	SEIFERT THOMAS J	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	2,356	$0.00	$0	0
2020-12-07	SEIFERT THOMAS J	Dir	Open-market sell S	Common Stock	149	$213.82	$31,859	5,114
2020-12-07	SEIFERT THOMAS J	Dir	Open-market sell S	Common Stock	7,497	$213.23	$1,598,585	5,263
2020-12-07	SEIFERT THOMAS J	Dir	Open-market sell S	Common Stock	3,724	$212.45	$791,164	12,760
2020-12-07	SEIFERT THOMAS J	Dir	Exercise / conversion M	Common Stock	1,869	$128.46	$240,092	16,484
2020-12-07	SEIFERT THOMAS J	Dir	Exercise / conversion M	Common Stock	2,339	$140.64	$328,957	14,615
2020-12-07	SEIFERT THOMAS J	Dir	Exercise / conversion M	Common Stock	2,356	$63.40	$149,370	12,276
2020-12-01	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Equity grant / award G	Common Stock	800	$0.00	$0	41,075
2020-11-17	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	300	$201.75	$60,525	298,638
2020-11-17	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	2,674	$199.79	$534,238	298,938
2020-11-17	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	13,197	$198.95	$2,625,543	301,612
2020-11-16	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	583	$0.00	$0	1,750
2020-11-16	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,577	$0.00	$0	0
2020-11-16	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	2,160	$200.61	$433,318	6,200
2020-11-16	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	583	$154.88	$90,295	8,360
2020-11-16	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	1,577	$71.77	$113,181	7,777
2020-11-16	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	1,027	$203.78	$209,282	314,809
2020-11-16	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	200	$202.34	$40,468	315,836
2020-11-16	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	17,602	$201.04	$3,538,706	316,036
2020-11-13	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	2,073	$206.28	$427,618	333,638
2020-11-13	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	5,375	$205.49	$1,104,509	335,711
2020-11-13	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	2,300	$204.58	$470,534	341,086
2020-11-13	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	1,200	$203.30	$243,960	343,386
2020-11-13	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	1,807	$202.54	$365,990	344,586
2020-11-13	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	12,245	$201.20	$2,463,694	346,393
2020-11-12	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	2,311	$205.78	$475,558	358,638
2020-11-12	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	6,892	$204.60	$1,410,103	360,949
2020-11-12	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	9,489	$203.58	$1,931,771	367,841
2020-11-12	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Open-market sell S	Common Stock	6,308	$202.92	$1,280,019	377,330
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	7,592	$0.00	$0	0
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	7,500	$0.00	$0	0
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	880	$208.63	$183,594	43,969
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	4,902	$208.13	$1,020,253	44,849
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	1,364	$206.71	$281,952	49,751
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	2,836	$205.17	$581,862	51,115
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	5,110	$204.39	$1,044,433	53,951
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	7,592	$81.89	$621,709	59,061
2020-11-10	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	7,500	$60.11	$450,825	51,469
2020-11-09	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,000	$210.28	$210,280	41,875
2020-11-09	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	2,677	$209.76	$561,528	42,875
2020-11-06	Lego Catherine P	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	8,508	$0.00	$0	0
2020-11-06	Lego Catherine P	Dir	Open-market sell S	Common Stock	800	$199.04	$159,232	10,786
2020-11-06	Lego Catherine P	Dir	Open-market sell S	Common Stock	7,708	$198.27	$1,528,265	11,586
2020-11-06	Lego Catherine P	Dir	Exercise / conversion M	Common Stock	8,508	$82.99	$706,079	19,294
2020-10-20	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,870	$0.00	$0	623
2020-10-20	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	623	$0.00	$0	1,577
2020-10-20	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	500	$191.15	$95,575	6,200
2020-10-20	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	1,993	$190.48	$379,627	6,700
2020-10-20	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	1,870	$119.50	$223,465	8,693
2020-10-20	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	623	$71.77	$44,713	6,823
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	4,467	$0.00	$0	0
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	588	$186.98	$109,944	15,407
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,200	$186.22	$223,464	15,995
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	796	$185.37	$147,555	17,195
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	551	$184.09	$101,434	17,991
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	251	$182.72	$45,863	18,542
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	781	$181.98	$142,126	18,793
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	300	$180.93	$54,279	19,574
2020-10-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	4,467	$97.65	$436,203	19,874
2020-10-13	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	3,000	$0.00	$0	0
2020-10-13	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	3,000	$185.20	$555,600	34,582
2020-10-13	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	3,000	$53.76	$161,280	37,582
2020-10-08	PEELER JOHN R	Dir	Open-market sell S	Common Stock	2,307	$179.49	$414,083	6,593
2020-10-08	PEELER JOHN R	Dir	Open-market sell S	Common Stock	991	$178.44	$176,834	8,900
2020-10-08	PEELER JOHN R	Dir	Open-market sell S	Common Stock	702	$177.01	$124,261	9,891
2020-09-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	2,939	$0.00	$0	0
2020-09-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	1,527	$0.00	$0	4,467
2020-09-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	41	$166.90	$6,843	15,407
2020-09-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	3,179	$166.26	$528,541	15,448
2020-09-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,246	$165.54	$206,263	18,627
2020-09-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	2,939	$81.89	$240,675	19,873
2020-09-15	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	1,527	$97.65	$149,112	16,934
2020-09-01	Samartsev Igor	Chief Technology Officer	Other acquired transaction J	Common Stock	46,575	$0.00	$0	232,145
2020-09-01	Samartsev Igor	Chief Technology Officer	Other disposed transaction J	Common Stock	22,000	$0.00	$0	11,690
2020-09-01	Samartsev Igor	Chief Technology Officer	Other disposed transaction J	Common Stock	24,575	$0.00	$0	0
2020-08-19	CHILD MICHAEL C	Dir	Equity grant / award G	Common Stock	3,390	$0.00	$0	33,249
2020-08-11	PEELER JOHN R	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	2,652	$0.00	$0	0
2020-08-11	PEELER JOHN R	Dir	Open-market sell S	Common Stock	2,652	$160.00	$424,320	10,593
2020-08-11	PEELER JOHN R	Dir	Exercise / conversion M	Common Stock	2,652	$87.87	$233,031	13,245
2020-08-10	PEELER JOHN R	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	350	$0.00	$0	2,652
2020-08-10	PEELER JOHN R	Dir	Open-market sell S	Common Stock	350	$163.67	$57,284	10,593
2020-08-10	PEELER JOHN R	Dir	Exercise / conversion M	Common Stock	350	$87.87	$30,754	10,943
2020-08-07	PEELER JOHN R	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	6,500	$0.00	$0	0
2020-08-07	PEELER JOHN R	Dir	Open-market sell S	Common Stock	6,400	$163.25	$1,044,800	10,693
2020-08-07	PEELER JOHN R	Dir	Exercise / conversion M	Common Stock	6,500	$63.40	$412,100	17,093
2020-08-06	PEELER JOHN R	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	6,500	$0.00	$0	0
2020-08-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	100	$164.34	$16,434	10,593
2020-08-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	350	$166.27	$58,194	10,593
2020-08-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	2,383	$165.34	$394,005	10,943
2020-08-06	PEELER JOHN R	Dir	Open-market sell S	Common Stock	3,767	$164.52	$619,747	13,326
2020-08-06	PEELER JOHN R	Dir	Exercise / conversion M	Common Stock	6,500	$60.00	$390,000	17,093
2020-07-21	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,690	$0.00	$0	0
2020-07-21	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	690	$182.91	$126,208	6,200
2020-07-21	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	1,000	$181.06	$181,060	6,890
2020-07-21	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	1,690	$81.89	$138,394	7,890
2020-07-20	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	741	$0.00	$0	1,690
2020-07-20	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	741	$180.01	$133,387	6,200
2020-07-20	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	741	$81.89	$60,680	6,941
2020-07-15	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	2,331	$0.00	$0	0
2020-07-15	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	2,331	$170.09	$396,480	6,200
2020-07-15	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	2,331	$97.65	$227,622	8,446
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	3,288	$0.00	$0	2,939
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	212	$0.00	$0	0
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	63	$161.75	$10,190	15,407
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	50	$160.21	$8,010	15,470
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	250	$159.34	$39,835	15,520
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	100	$157.94	$15,794	15,770
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,463	$156.71	$229,267	15,870
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	4,074	$155.96	$635,381	17,333
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	3,288	$81.89	$269,254	21,407
2020-07-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	212	$71.77	$15,215	18,119
2020-06-22	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	2,200	$0.00	$0	2,200
2020-06-22	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	1,500	$160.93	$241,395	6,115
2020-06-22	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	779	$160.02	$124,656	7,615
2020-06-22	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	808	$158.55	$128,108	8,394
2020-06-22	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	2,200	$71.77	$157,894	9,202
2020-06-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	343	$168.28	$57,720	7,482,599
2020-06-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,100	$167.53	$351,813	7,482,942
2020-06-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,724	$166.57	$453,737	7,485,042
2020-06-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,133	$165.66	$353,353	7,487,766
2020-06-05	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	7,600	$0.00	$0	5,400
2020-06-05	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,100	$170.01	$187,011	41,875
2020-06-05	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,400	$167.03	$233,842	42,975
2020-06-05	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	2,900	$166.66	$483,314	44,375
2020-06-05	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	2,200	$165.35	$363,770	47,275
2020-06-05	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M	Common Stock	7,600	$60.11	$456,836	49,475
2020-06-03	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	62,000	$0.00	$0	62,000
2020-06-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	3,500	$0.00	$0	212
2020-06-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	369	$159.91	$59,007	17,907
2020-06-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,820	$159.43	$290,163	18,276
2020-06-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,308	$158.02	$206,690	20,096
2020-06-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,853	$157.24	$291,366	21,404
2020-06-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	200	$155.67	$31,134	23,257
2020-06-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	450	$154.67	$69,602	23,457
2020-06-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	3,500	$71.77	$251,195	23,907
2020-05-28	CHILD MICHAEL C	Dir	Equity grant / award A	Common Stock	1,642	$0.00	$0	36,639
2020-05-21	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	4,000	$0.00	$0	0
2020-05-21	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	4,000	$160.00	$640,000	41,875
2020-05-21	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M	Common Stock	4,000	$53.76	$215,040	45,875
2020-05-20	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	750	$0.00	$0	4,000
2020-05-20	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	750	$160.00	$120,000	41,875
2020-05-20	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M	Common Stock	750	$53.76	$40,320	42,625
2020-05-19	CHILD MICHAEL C	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	6,667	$0.00	$0	0
2020-05-19	CHILD MICHAEL C	Dir	Exercise / conversion M	Common Stock	6,667	$15.36	$102,405	34,997
2020-05-18	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	6,394	$0.00	$0	0
2020-05-18	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	6,161	$0.00	$0	0
2020-05-18	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	12,000	$0.00	$0	0
2020-05-18	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	2,535	$151.24	$383,393	83,115
2020-05-18	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	22,020	$150.76	$3,319,735	85,650
2020-05-18	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M	Common Stock	6,394	$81.89	$523,605	107,670
2020-05-18	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M	Common Stock	6,161	$97.65	$601,622	101,276
2020-05-18	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M	Common Stock	12,000	$71.77	$861,240	95,115
2020-05-12	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	208	$155.65	$32,375	7,489,899
2020-05-12	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,400	$154.87	$371,688	7,490,107
2020-05-12	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,223	$154.08	$342,520	7,492,507
2020-05-12	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,300	$152.73	$198,549	7,494,730
2020-05-12	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,969	$151.96	$299,209	7,496,030
2020-05-12	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	3,650	$0.00	$0	4,750
2020-05-12	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	3,650	$155.08	$566,042	41,875
2020-05-12	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M	Common Stock	3,650	$53.76	$196,224	45,525
2020-05-12	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	14,200	$0.00	$0	0
2020-05-12	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	200	$155.77	$31,154	43,969
2020-05-12	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	4,827	$154.92	$747,799	44,169
2020-05-12	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	3,457	$154.05	$532,551	48,996
2020-05-12	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	2,306	$152.88	$352,541	52,453
2020-05-12	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	3,410	$152.03	$518,422	54,759
2020-05-12	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	14,200	$71.77	$1,019,134	58,169
2020-05-11	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,396	$154.32	$832,711	7,497,999
2020-05-11	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	4,404	$153.72	$676,983	7,503,395
2020-05-11	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	3,900	$152.60	$595,140	7,507,799
2020-05-11	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,300	$151.37	$196,781	7,511,699
2020-05-11	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,100	$0.00	$0	8,400
2020-05-11	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,100	$155.02	$170,522	41,875
2020-05-11	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M	Common Stock	1,100	$53.76	$59,136	42,975
2020-05-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	300	$152.34	$45,702	7,512,999
2020-05-08	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	14,700	$151.78	$2,231,166	7,513,299
2020-05-07	STUKALIN FELIX I	SVP, North America Operations	Other disposed transaction D · derivative	Employee Stock Option (right to buy)	6,000	$0.00	$0	3,000
2020-05-07	STUKALIN FELIX I	SVP, North America Operations	Other disposed transaction D · derivative	Employee Stock Option (right to buy)	2,000	$0.00	$0	0
2020-05-07	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	514	$148.33	$76,242	20,564
2020-05-07	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	4,194	$147.53	$618,741	21,078
2020-05-07	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	2,926	$146.66	$429,127	25,272
2020-05-07	STUKALIN FELIX I	SVP, North America Operations	Open-market sell S	Common Stock	366	$145.57	$53,279	28,198
2020-05-07	STUKALIN FELIX I	SVP, North America Operations	Exercise / conversion M	Common Stock	6,000	$58.65	$351,900	28,564
2020-05-07	STUKALIN FELIX I	SVP, North America Operations	Exercise / conversion M	Common Stock	2,000	$53.76	$107,520	22,564
2020-05-06	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	1,041	$0.00	$0	4,937
2020-05-06	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,755	$145.16	$254,756	21,250
2020-05-06	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	1,041	$71.77	$74,713	23,005
2020-05-05	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	1,234	$0.00	$0	5,978
2020-05-05	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	226	$146.12	$33,023	21,964
2020-05-05	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,951	$145.29	$283,461	22,190
2020-05-05	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	1,234	$71.77	$88,564	24,141
2020-03-01	Burgomaster Thomas J	Chief Accounting Officer	Other disposed transaction F	Common Stock	1,158	$127.64	$147,807	7,002
2020-03-01	Burgomaster Thomas J	Chief Accounting Officer	Equity grant / award A	Common Stock	550	$0.00	$0	8,160
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	1,000	$0.00	$0	0
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	78	$133.27	$10,395	39,057
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	333	$132.42	$44,096	39,135
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	157	$131.51	$20,647	39,468
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	131	$130.32	$17,072	39,625
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	105	$129.11	$13,557	39,756
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	159	$127.98	$20,349	39,861
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	37	$126.51	$4,681	40,020
2020-02-24	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	1,000	$15.82	$15,820	40,057
2020-02-19	Burgomaster Thomas J	Chief Accounting Officer	Equity grant / award A	Common Stock	1,306	$0.00	$0	7,610
2019-12-11	CHILD MICHAEL C	Dir	Equity grant / award G	Common Stock	2,100	$0.00	$0	28,330
2019-12-02	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Other acquired transaction J	Common Stock	202,707	$131.80	$26,716,783	383,638
2019-11-25	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	7,234	$142.32	$1,029,543	7,535,999
2019-11-25	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,466	$141.33	$348,520	7,543,233
2019-11-25	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	300	$140.14	$42,042	7,545,699
2019-11-04	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	2,000	$145.49	$290,980	43,864
2019-11-01	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	800	$134.65	$107,720	136,450
2019-09-06	Samartsev Igor	Chief Technology Officer	Other acquired transaction J	Common Stock	10,417	$0.00	$0	20,982
2019-09-06	Samartsev Igor	Chief Technology Officer	Other acquired transaction J	Common Stock	10,418	$0.00	$0	20,983
2019-09-06	Samartsev Igor	Chief Technology Officer	Other disposed transaction J	Common Stock	20,835	$0.00	$0	0
2019-09-05	Samartsev Igor	Chief Technology Officer	Other acquired transaction J	Common Stock	66,055	$0.00	$0	340,570
2019-09-05	Samartsev Igor	Chief Technology Officer	Other disposed transaction J	Common Stock	30,425	$0.00	$0	24,575
2019-09-05	Samartsev Igor	Chief Technology Officer	Other disposed transaction J	Common Stock	21,310	$0.00	$0	33,690
2019-09-05	Samartsev Igor	Chief Technology Officer	Other disposed transaction J	Common Stock	14,320	$0.00	$0	20,835
2019-08-26	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Equity grant / award G	Common Stock	9,000	$0.00	$0	180,931
2019-08-01	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	800	$130.01	$104,008	137,250
2019-07-03	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	836	$157.02	$131,269	6,225
2019-07-01	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	626	$158.83	$99,428	6,951
2019-06-27	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	10,000	$150.53	$1,505,300	7,545,999
2019-06-21	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	621	$145.75	$90,511	7,577
2019-06-05	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	10,565	$130.84	$1,382,325	10,565
2019-06-05	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	21,130	$130.84	$2,764,649	0
2019-06-03	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	16,000	$126.33	$2,021,280	274,515
2019-05-30	CHILD MICHAEL C	Dir	Equity grant / award A · derivative	Director Stock Option (right to buy)	1,869	$0.00	$0	1,869
2019-05-30	CHILD MICHAEL C	Dir	Equity grant / award A	Common Stock	1,297	$0.00	$0	30,430
2019-05-06	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	10,000	$162.59	$1,625,900	7,555,999
2019-05-02	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	3,667	$0.00	$0	7,333
2019-05-02	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	1,358	$170.21	$231,145	20,632
2019-05-02	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	3,667	$170.23	$624,233	21,990
2019-05-02	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	3,667	$71.77	$263,181	25,657
2019-05-01	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	800	$172.10	$137,680	138,050
2019-03-06	CHILD MICHAEL C	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	6,667	$0.00	$0	0
2019-03-06	CHILD MICHAEL C	Dir	Exercise / conversion M	Common Stock	6,667	$11.07	$73,804	29,133
2019-03-01	Burgomaster Thomas J	Chief Accounting Officer	Other disposed transaction F	Common Stock	1,017	$156.68	$159,344	8,198
2019-03-01	Burgomaster Thomas J	Chief Accounting Officer	Equity grant / award A	Common Stock	1,521	$0.00	$0	9,215
2019-02-15	Ovtchinnikov Alexander	SVP, Components	Equity grant / award A · derivative	Employee Stock Option (right to buy)	7,472	$0.00	$0	7,472
2019-02-15	Ovtchinnikov Alexander	SVP, Components	Equity grant / award A	Common Stock	2,592	$0.00	$0	80,048
2018-08-31	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	40,000	$0.00	$0	258,515
2018-08-31	GAPONTSEV VALENTIN P	CEO & Chairman of the Board	Equity grant / award G	Common Stock	46,000	$0.00	$0	189,931
2018-08-30	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	55,000	$0.00	$0	55,000
2018-08-24	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	4,700	$0.00	$0	138,850
2018-08-22	Samartsev Igor	Chief Technology Officer	Other acquired transaction J	Common Stock	9,400	$0.00	$0	278,215
2018-06-11	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	55,000	$0.00	$0	55,000
2018-06-06	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,500	$0.00	$0	3,750
2018-06-06	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	1,500	$260.32	$390,480	6,829
2018-06-06	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	1,500	$58.65	$87,975	8,329
2018-06-05	Meurice Eric	Dir	Equity grant / award A	Common Stock	650	$256.25	$166,562	8,463
2018-06-05	PEELER JOHN R	Dir	Equity grant / award A · derivative	Director Stock Option (right to buy)	1,113	$0.00	$0	1,113
2018-06-05	PEELER JOHN R	Dir	Equity grant / award A	Common Stock	650	$256.25	$166,562	7,654
2018-06-04	Meurice Eric	Dir	Other disposed transaction F	Common Stock	297	$0.00	$0	7,813
2018-06-04	Meurice Eric	Dir	Equity grant / award A · derivative	Director Stock Option (right to buy)	1,113	$0.00	$0	1,113
2018-06-01	Meurice Eric	Dir	Other disposed transaction F	Common Stock	356	$0.00	$0	8,110
2018-05-21	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	2,000	$245.63	$491,260	7,565,999
2018-05-14	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	10,000	$253.88	$2,538,800	7,567,999
2018-05-11	HURLEY WILLIAM S	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	2,255	$0.00	$0	0
2018-05-11	HURLEY WILLIAM S	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	3,000	$0.00	$0	0
2018-05-11	HURLEY WILLIAM S	Dir	Open-market sell S	Common Stock	5,255	$251.42	$1,321,212	11,005
2018-05-11	HURLEY WILLIAM S	Dir	Exercise / conversion M	Common Stock	2,255	$98.96	$223,155	16,260
2018-05-11	HURLEY WILLIAM S	Dir	Exercise / conversion M	Common Stock	3,000	$63.40	$190,200	14,005
2018-05-10	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,500	$0.00	$0	5,250
2018-05-10	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	1,500	$250.47	$375,705	6,829
2018-05-10	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	1,500	$58.65	$87,975	8,329
2018-05-10	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	2,000	$0.00	$0	0
2018-05-10	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	4,000	$0.00	$0	0
2018-05-10	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	6,000	$250.44	$1,502,640	18,573
2018-05-10	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	2,000	$60.11	$120,220	24,573
2018-05-10	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	4,000	$58.65	$234,600	22,573
2018-05-09	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	1,200	$0.00	$0	0
2018-05-09	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	1,200	$241.16	$289,392	6,829
2018-05-09	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	1,200	$53.76	$64,512	8,029
2018-05-07	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	10,000	$233.96	$2,339,600	7,577,999
2018-05-04	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	10,000	$233.49	$2,334,900	7,587,999
2018-05-02	CHILD MICHAEL C	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	5,000	$0.00	$0	0
2018-05-02	CHILD MICHAEL C	Dir	Exercise / conversion M	Common Stock	5,000	$18.41	$92,050	21,816
2018-04-12	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	198	$0.00	$0	1,200
2018-04-12	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	198	$232.68	$46,071	6,829
2018-04-12	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	198	$53.76	$10,644	7,027
2018-04-11	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	400	$0.00	$0	1,398
2018-04-11	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	400	$230.04	$92,016	6,829
2018-04-11	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	400	$53.76	$21,504	7,229
2018-04-10	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	602	$0.00	$0	1,798
2018-04-10	Burgomaster Thomas J	Chief Accounting Officer	Open-market sell S	Common Stock	602	$230.25	$138,610	6,829
2018-04-10	Burgomaster Thomas J	Chief Accounting Officer	Exercise / conversion M	Common Stock	602	$53.76	$32,364	7,431
2018-03-14	HURLEY WILLIAM S	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	3,500	$0.00	$0	3,000
2018-03-14	HURLEY WILLIAM S	Dir	Open-market sell S	Common Stock	3,500	$255.93	$895,755	11,005
2018-03-14	HURLEY WILLIAM S	Dir	Exercise / conversion M	Common Stock	3,500	$63.40	$221,900	14,505
2018-03-12	PEELER JOHN R	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	2,266	$0.00	$0	0
2018-03-12	PEELER JOHN R	Dir	Open-market sell S	Common Stock	2,266	$252.95	$573,185	7,004
2018-03-12	PEELER JOHN R	Dir	Exercise / conversion M	Common Stock	2,266	$54.98	$124,585	9,270
2018-03-09	PEELER JOHN R	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	2,734	$0.00	$0	2,266
2018-03-09	PEELER JOHN R	Dir	Open-market sell S	Common Stock	2,734	$250.80	$685,687	7,004
2018-03-09	PEELER JOHN R	Dir	Exercise / conversion M	Common Stock	2,734	$54.98	$150,315	9,738
2018-03-01	Burgomaster Thomas J	Chief Accounting Officer	Equity grant / award A	Common Stock	1,866	$0.00	$0	6,829
2018-02-22	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Equity grant / award A · derivative	Common Stock	13,744	$0.00	$0	13,744
2018-02-22	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Equity grant / award A	Common Stock	4,014	$0.00	$0	25,355
2018-02-01	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	5,000	$0.00	$0	5,000
2018-02-01	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	5,000	$252.46	$1,262,300	31,100
2018-02-01	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	5,000	$58.65	$293,250	36,100
2018-01-19	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	2,500	$0.00	$0	10,000
2018-01-19	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	2,500	$261.53	$653,825	31,100
2018-01-19	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	2,500	$58.65	$146,625	33,600
2018-01-16	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	9,500	$0.00	$0	9,500
2018-01-16	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	9,500	$261.49	$2,484,155	37,265
2018-01-16	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Exercise / conversion M	Common Stock	9,500	$53.76	$510,720	46,765
2018-01-12	GAUTHIER HENRY E	Dir	Open-market sell S	Common Stock	5,000	$257.52	$1,287,600	15,104
2018-01-08	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	2,500	$0.00	$0	1,500
2018-01-08	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	3,000	$0.00	$0	3,000
2018-01-08	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	1,000	$0.00	$0	1,000
2018-01-08	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	9,500	$256.56	$2,437,320	15,957
2018-01-08	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	2,500	$58.65	$146,625	22,457
2018-01-08	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	3,000	$60.11	$180,330	25,457
2018-01-08	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	1,000	$15.82	$15,820	16,957
2018-01-02	Samartsev Igor	Chief Technology Officer	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	8,000	$60.11	$480,880	0
2018-01-02	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	8,000	$221.59	$1,772,720	349,284
2018-01-02	Samartsev Igor	Chief Technology Officer	Exercise / conversion M	Common Stock	8,000	$60.11	$480,880	357,284
2017-12-12	GAUTHIER HENRY E	Dir	Equity grant / award G	Common Stock	450	$0.00	$0	20,104
2017-12-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	10,000	$0.00	$0	2,000
2017-12-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	10,000	$208.17	$2,081,700	12,906
2017-12-04	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	10,000	$60.11	$601,100	22,906
2017-11-20	CHILD MICHAEL C	Dir	Equity grant / award G	Common Stock	4,100	$0.00	$0	16,816
2017-11-17	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	500	$0.00	$0	372,065
2017-11-17	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	1,850	$234.10	$433,085	79,150
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	3,500	$0.00	$0	6,000
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	3,000	$0.00	$0	4,000
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	2,000	$0.00	$0	6,000
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	1,000	$0.00	$0	2,000
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	9,500	$198.79	$1,888,505	15,957
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	3,500	$60.11	$210,385	25,457
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	3,000	$58.65	$175,950	21,957
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	2,000	$53.76	$107,520	18,957
2017-10-16	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	1,000	$15.82	$15,820	16,957
2017-08-24	HURLEY WILLIAM S	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	6,500	$60.00	$390,000	0
2017-08-24	HURLEY WILLIAM S	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	1,667	$75.15	$125,275	0
2017-08-24	HURLEY WILLIAM S	Dir	Open-market sell S	Common Stock	8,167	$165.42	$1,350,985	11,005
2017-08-24	HURLEY WILLIAM S	Dir	Exercise / conversion M	Common Stock	6,500	$60.00	$390,000	19,172
2017-08-24	HURLEY WILLIAM S	Dir	Exercise / conversion M	Common Stock	1,667	$75.15	$125,275	12,672
2017-08-17	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	11,600	$0.00	$0	0
2017-08-17	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	11,600	$166.98	$1,936,968	31,100
2017-08-17	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	11,600	$53.76	$623,616	42,700
2017-08-08	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	10,000	$0.00	$0	11,600
2017-08-08	Mammen Timothy PV	SVP, Chief Financial Officer	Open-market sell S	Common Stock	10,000	$162.87	$1,628,700	31,100
2017-08-08	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	10,000	$53.76	$537,600	41,100
2017-08-03	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	12,000	$0.00	$0	0
2017-08-03	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	12,000	$160.30	$1,923,600	71,595
2017-08-03	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M	Common Stock	12,000	$60.11	$721,320	83,595
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	2,500	$60.11	$150,275	9,500
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	3,000	$58.65	$175,950	7,000
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	2,000	$53.76	$107,520	8,000
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	1,000	$15.82	$15,820	3,000
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Open-market sell S	Common Stock	8,500	$154.28	$1,311,380	15,957
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	2,500	$60.11	$150,275	24,457
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	3,000	$58.65	$175,950	21,957
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	2,000	$53.76	$107,520	18,957
2017-07-17	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	1,000	$15.82	$15,820	16,957
2017-06-30	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	5,000	$0.00	$0	4,000
2017-06-30	Ness Trevor	SVP, Worldwide Sales & Mrkting	Open-market sell S	Common Stock	5,000	$145.69	$728,450	12,906
2017-06-30	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	5,000	$58.65	$293,250	17,906
2017-06-15	Samartsev Igor	Chief Technology Officer	Other acquired transaction J	Common Stock	19,565	$138.45	$2,708,774	372,565
2017-06-15	Samartsev Igor	Chief Technology Officer	Other disposed transaction J	Common Stock	9,445	$138.45	$1,307,660	44,555
2017-06-15	Samartsev Igor	Chief Technology Officer	Other disposed transaction J	Common Stock	10,120	$138.45	$1,401,114	43,880
2017-06-06	CHILD MICHAEL C	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	3,333	$20.32	$67,727	0
2017-06-06	CHILD MICHAEL C	Dir	Exercise / conversion M	Common Stock	3,333	$20.32	$67,727	20,916
2017-06-05	SEIFERT THOMAS J	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	2,355	$0.00	$0	2,356
2017-06-05	SEIFERT THOMAS J	Dir	Open-market sell S	Common Stock	2,849	$141.47	$403,048	6,331
2017-06-05	SEIFERT THOMAS J	Dir	Exercise / conversion M	Common Stock	2,355	$63.40	$149,307	9,180
2017-06-01	SEIFERT THOMAS J	Dir	Equity grant / award A · derivative	Director Stock Options (Right to buy)	2,339	$0.00	$0	2,339
2017-06-01	SEIFERT THOMAS J	Dir	Exercise / conversion M · derivative	Director Stock Options (Right to buy)	3,002	$0.00	$0	0
2017-06-01	SEIFERT THOMAS J	Dir	Equity grant / award A	Common Stock	1,185	$0.00	$0	6,825
2017-06-01	SEIFERT THOMAS J	Dir	Open-market sell S	Common Stock	3,950	$139.87	$552,486	5,640
2017-06-01	SEIFERT THOMAS J	Dir	Exercise / conversion M	Common Stock	3,002	$87.87	$263,786	9,590
2017-05-30	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	1,000	$140.14	$140,140	54,000
2017-05-12	HURLEY WILLIAM S	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	5,000	$0.00	$0	1,667
2017-05-12	HURLEY WILLIAM S	Dir	Other disposed transaction D	Common Stock	5,000	$138.21	$691,050	9,820
2017-05-12	HURLEY WILLIAM S	Dir	Exercise / conversion M	Common Stock	5,000	$75.15	$375,750	14,820
2017-05-11	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	4,626	$138.00	$638,388	37,765
2017-05-10	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	16,472	$135.52	$2,232,285	7,597,999
2017-05-09	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	7,328	$135.12	$990,159	7,614,471
2017-05-04	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	11,250	$15.82	$177,975	0
2017-05-04	Mammen Timothy PV	SVP, Chief Financial Officer	Other disposed transaction D	Common Stock	11,250	$133.96	$1,507,050	31,100
2017-05-04	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	11,250	$15.82	$177,975	42,350
2017-05-02	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	200	$140.00	$28,000	7,621,799
2017-04-27	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	100	$15.82	$1,582	4,000
2017-04-27	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Other disposed transaction D	Common Stock	100	$126.55	$12,655	15,957
2017-04-27	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	100	$15.82	$1,582	16,057
2017-04-26	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	200	$15.82	$3,164	4,100
2017-04-26	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Other disposed transaction D	Common Stock	200	$126.21	$25,242	15,957
2017-04-26	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	200	$15.82	$3,164	16,157
2017-04-25	GAUTHIER HENRY E	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	6,150	$63.40	$389,910	0
2017-04-25	GAUTHIER HENRY E	Dir	Other disposed transaction D	Common Stock	6,150	$125.99	$774,838	19,369
2017-04-25	GAUTHIER HENRY E	Dir	Exercise / conversion M	Common Stock	6,150	$63.40	$389,910	25,519
2017-04-24	GAUTHIER HENRY E	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	100	$63.40	$6,340	6,150
2017-04-24	GAUTHIER HENRY E	Dir	Other disposed transaction D	Common Stock	100	$125.00	$12,500	19,369
2017-04-24	GAUTHIER HENRY E	Dir	Exercise / conversion M	Common Stock	100	$63.40	$6,340	19,469
2017-04-11	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	5,000	$15.82	$79,100	11,250
2017-04-11	Mammen Timothy PV	SVP, Chief Financial Officer	Other disposed transaction D	Common Stock	5,000	$119.41	$597,050	31,100
2017-04-11	Mammen Timothy PV	SVP, Chief Financial Officer	Exercise / conversion M	Common Stock	5,000	$15.82	$79,100	36,100
2017-03-20	Samartsev Igor	Chief Technology Officer	Exercise / conversion M · derivative	Employee Stock Option (right to buy)	10,900	$53.76	$585,984	0
2017-03-20	Samartsev Igor	Chief Technology Officer	Other disposed transaction D	Common Stock	10,900	$121.24	$1,321,516	349,284
2017-03-20	Samartsev Igor	Chief Technology Officer	Exercise / conversion M	Common Stock	10,900	$53.76	$585,984	360,184
2017-03-20	Samartsev Igor	Chief Technology Officer	Other disposed transaction F	Common Stock	612	$0.00	$0	349,284
2017-03-17	GAUTHIER HENRY E	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	250	$63.40	$15,850	6,250
2017-03-17	GAUTHIER HENRY E	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	9,750	$60.00	$585,000	0
2017-03-17	GAUTHIER HENRY E	Dir	Other disposed transaction D	Common Stock	10,000	$120.96	$1,209,600	19,369
2017-03-17	GAUTHIER HENRY E	Dir	Exercise / conversion M	Common Stock	250	$63.40	$15,850	29,369
2017-03-17	GAUTHIER HENRY E	Dir	Exercise / conversion M	Common Stock	9,750	$60.00	$585,000	29,119
2017-03-01	Ness Trevor	SVP, Worldwide Sales & Mrkting	Other disposed transaction F	Common Stock	617	$0.00	$0	12,906
2017-02-17	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Equity grant / award A · derivative	Employee Stock Option (right to buy)	7,184	$0.00	$0	7,184
2017-02-17	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Equity grant / award A	Common Stock	2,348	$0.00	$0	43,064
2017-02-16	HURLEY WILLIAM S	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	4,674	$42.43	$198,318	0
2017-02-16	HURLEY WILLIAM S	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	1,993	$42.43	$84,563	4,674
2017-02-16	HURLEY WILLIAM S	Dir	Other disposed transaction D	Common Stock	4,674	$118.95	$555,972	9,820
2017-02-16	HURLEY WILLIAM S	Dir	Exercise / conversion M	Common Stock	4,674	$42.43	$198,318	14,494
2017-02-16	HURLEY WILLIAM S	Dir	Other disposed transaction D	Common Stock	1,993	$119.60	$238,363	9,820
2017-02-16	HURLEY WILLIAM S	Dir	Exercise / conversion M	Common Stock	1,993	$42.43	$84,563	11,813
2017-01-30	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	2,500	$53.76	$134,400	0
2017-01-30	Ness Trevor	SVP, Worldwide Sales & Mrkting	Other disposed transaction D	Common Stock	2,500	$112.34	$280,850	10,951
2017-01-30	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	2,500	$53.76	$134,400	13,451
2017-01-24	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	2,400	$53.76	$129,024	2,500
2017-01-24	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	2,500	$53.76	$134,400	4,900
2017-01-24	Ness Trevor	SVP, Worldwide Sales & Mrkting	Other disposed transaction D	Common Stock	2,400	$105.84	$254,016	10,951
2017-01-24	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	2,400	$53.76	$129,024	13,351
2017-01-24	Ness Trevor	SVP, Worldwide Sales & Mrkting	Other disposed transaction D	Common Stock	2,500	$106.43	$266,075	10,951
2017-01-24	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	2,500	$53.76	$134,400	13,451
2017-01-24	Samartsev Igor	Chief Technology Officer	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	15,000	$15.82	$237,300	0
2017-01-24	Samartsev Igor	Chief Technology Officer	Other disposed transaction D	Common Stock	15,000	$106.18	$1,592,700	348,850
2017-01-24	Samartsev Igor	Chief Technology Officer	Exercise / conversion M	Common Stock	15,000	$15.82	$237,300	363,850
2017-01-20	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M · derivative	Employee Stock Options (right to buy)	100	$53.76	$5,376	7,400
2017-01-20	Ness Trevor	SVP, Worldwide Sales & Mrkting	Other disposed transaction D	Common Stock	100	$103.00	$10,300	10,951
2017-01-20	Ness Trevor	SVP, Worldwide Sales & Mrkting	Exercise / conversion M	Common Stock	100	$53.76	$5,376	11,051
2017-01-04	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Director Stock Option (right to buy)	1,164	$58.65	$68,269	11,125
2017-01-04	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Other disposed transaction D	Common Stock	1,164	$100.15	$116,575	13,625
2017-01-04	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	1,164	$58.65	$68,269	14,789
2017-01-03	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Director Stock Option (right to buy)	100	$58.65	$5,865	12,289
2017-01-03	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Director Stock Option (right to buy)	1,565	$53.76	$84,134	12,000
2017-01-03	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Other disposed transaction D	Common Stock	1,665	$98.91	$164,685	13,625
2017-01-03	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	100	$58.65	$5,865	15,290
2017-01-03	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	1,565	$53.76	$84,134	15,190
2016-12-31	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Other disposed transaction F	Common Stock	246	$0.00	$0	13,625
2016-12-30	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Director Stock Option (right to buy)	111	$58.65	$6,510	12,389
2016-12-30	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Director Stock Option (right to buy)	1,435	$53.76	$77,146	13,565
2016-12-30	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Other disposed transaction D	Common Stock	1,546	$99.06	$153,147	13,871
2016-12-30	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	111	$58.65	$6,510	15,417
2016-12-30	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M	Common Stock	1,435	$53.76	$77,146	15,306
2016-12-15	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	4,000	$99.35	$397,400	81,000
2016-12-15	SEIFERT THOMAS J	Dir	Open-market sell S	Common Stock	990	$100.02	$99,020	6,588
2016-12-13	Samartsev Igor	Chief Technology Officer	Exercise / conversion M · derivative	Director Stock Option (right to buy)	20,000	$19.69	$393,800	0
2016-12-13	Samartsev Igor	Chief Technology Officer	Other disposed transaction D	Common Stock	20,000	$100.50	$2,010,000	348,970
2016-12-13	Samartsev Igor	Chief Technology Officer	Exercise / conversion M	Common Stock	20,000	$19.69	$393,800	368,970
2016-12-09	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	2,000	$99.24	$198,480	81,000
2016-12-09	Samartsev Igor	Chief Technology Officer	Other acquired transaction J	Common Stock	2,000	—	—	85,000
2016-12-08	Samartsev Igor	Chief Technology Officer	Open-market sell S	Common Stock	2,000	$98.66	$197,320	83,000
2016-12-08	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	1,000	$0.00	$0	353,000
2016-12-08	Samartsev Igor	Chief Technology Officer	Other acquired transaction J	Common Stock	2,000	—	—	85,000
2016-12-01	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	750	$94.16	$70,620	40,943
2016-11-07	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	5,589	$96.30	$538,221	41,693
2016-11-01	Lopresti Angelo P	SVP, Secretary & Gen Counsel	Open-market sell S	Common Stock	1,911	$96.31	$184,048	47,282
2016-10-31	PEELER JOHN R	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	10,000	$54.98	$549,800	15,000
2016-10-31	PEELER JOHN R	Dir	Other disposed transaction D	Common Stock	10,000	$96.77	$967,700	5,819
2016-10-31	PEELER JOHN R	Dir	Exercise / conversion M	Common Stock	10,000	$54.98	$549,800	15,819
2016-10-27	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Other disposed transaction D	Common Stock	9,000	$93.61	$842,490	13,871
2016-10-27	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Common Stock	4,000	$53.76	$215,040	15,000
2016-10-27	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Exercise / conversion M · derivative	Common Stock	5,000	$15.82	$79,100	10,000
2016-09-30	Ovtchinnikov Alexander	SVP, Components	Other disposed transaction F	Common Stock	227	$0.00	$0	72,274
2016-08-03	Lego Catherine P	Dir	Open-market buy P	Common Stock	3,000	$83.12	$249,360	6,012
2016-08-02	Lego Catherine P	Dir	Equity grant / award A · derivative	Director Stock Option (right to buy)	8,508	$0.00	$0	8,508
2016-08-02	Lego Catherine P	Dir	Equity grant / award A	Common Stock	3,012	$0.00	$0	3,012
2016-06-30	Shcherbakov Eugene A	SVP, MD IPG Laser GmbH	Other disposed transaction F	Common Stock	246	$0.00	$0	14,118
2016-06-30	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	22,000	$80.07	$1,761,540	7,621,999
2016-06-23	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	500	$85.06	$42,530	7,643,999
2016-06-16	Samartsev Igor	Chief Technology Officer	Equity grant / award G	Common Stock	55,000	$0.00	$0	55,000
2016-06-01	SEIFERT THOMAS J	Dir	Equity grant / award A · derivative	Director Stock Option (right to buy)	3,002	$0.00	$0	3,002
2016-06-01	SEIFERT THOMAS J	Dir	Equity grant / award A	Common Stock	1,896	$0.00	$0	7,578
2016-05-25	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	9,200	$85.06	$782,552	7,644,499
2016-05-24	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	800	$85.00	$68,000	7,653,699
2016-04-27	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	1,807	$101.84	$184,025	7,654,499
2016-04-26	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	5,693	$101.00	$574,993	7,656,306
2016-04-26	GAUTHIER HENRY E	Dir	Exercise / conversion M · derivative	Director Stock Option (right to buy)	10,001	$42.43	$424,342	0
2016-04-26	GAUTHIER HENRY E	Dir	Open-market sell S	Common Stock	10,001	$100.42	$1,004,300	17,473
2016-04-26	GAUTHIER HENRY E	Dir	Exercise / conversion M	Common Stock	10,001	$42.43	$424,342	27,474
2016-04-25	Valentin Gapontsev Trust I	10%	Open-market sell S	Common Stock	15,000	$98.19	$1,472,850	7,661,999
2016-04-22	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	3,584	$99.12	$355,246	72,572
2016-04-22	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M · derivative	Common Stock	3,584	$53.76	$192,676	0
2016-04-21	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	216	$99.00	$21,384	72,572
2016-04-21	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M · derivative	Common Stock	216	$53.76	$11,612	3,584
2016-04-20	Ovtchinnikov Alexander	SVP, Components	Open-market sell S	Common Stock	15,200	$99.03	$1,505,256	72,572
2016-04-20	Ovtchinnikov Alexander	SVP, Components	Exercise / conversion M · derivative	Common Stock	15,200	$53.76	$817,152	3,800

Regulatory Activity

Last 12 months to 2025-04-29

Insider Filings (Forms 3/4/5) — 12 months

Material Event Filings (8-K) — 12 months

8-K Material Event Filing Activity

Monthly count

Insider Trading Activity (Forms 3/4/5)

Monthly count