Financial Metrics

CCOI COGENT COMMUNICATIONS HOLDINGS, INC.

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	2017-06-30	0.1	—	USD/shares	10-Q	2018-08-02
Quarterly	2017-09-30	0.27	+170.0%	USD/shares	10-Q	2018-11-01
Quarterly	2018-06-30	0.14	-48.1%	USD/shares	10-Q	2019-08-08
Quarterly	2018-09-30	0.18	+28.6%	USD/shares	10-Q	2019-11-07
Quarterly	2019-06-30	0.16	-11.1%	USD/shares	10-Q	2020-08-06
Quarterly	2019-09-30	0.3	+87.5%	USD/shares	10-Q	2020-11-05
Quarterly	2020-06-30	0.18	-40.0%	USD/shares	10-Q	2021-08-05
Quarterly	2020-09-30	-0.11	-161.1%	USD/shares	10-Q	2021-11-04
Quarterly	2021-03-31	0.41	+472.7%	USD/shares	10-Q	2022-05-05
Quarterly	2021-06-30	-0.05	-112.2%	USD/shares	10-Q	2022-08-05
Quarterly	2021-09-30	0.28	+660.0%	USD/shares	10-Q	2022-11-04
Quarterly	2022-03-31	0.02	-92.9%	USD/shares	10-Q	2023-05-05
Quarterly	2022-06-30	0.24	+1100.0%	USD/shares	10-Q	2023-08-09
Quarterly	2022-09-30	-0.17	-170.8%	USD/shares	10-Q	2023-11-09
Quarterly	2023-03-31	0.13	+176.5%	USD/shares	10-Q	2024-05-09
Quarterly	2023-06-30	23.65	+18092.3%	USD/shares	10-Q	2024-08-08
Quarterly	2023-09-30	-1.2	-105.1%	USD/shares	10-Q	2024-11-07
Quarterly	2024-03-31	-1.38	-15.0%	USD/shares	10-Q	2025-05-08
Quarterly	2024-06-30	-0.68	+50.7%	USD/shares	10-Q	2025-08-07
Quarterly	2024-09-30	-1.33	-95.6%	USD/shares	10-Q	2025-11-06
Quarterly	2025-03-31	-1.09	+18.0%	USD/shares	10-Q	2025-05-08
Quarterly	2025-06-30	-1.21	-11.0%	USD/shares	10-Q	2025-08-07
Quarterly	2025-09-30	-0.87	+28.1%	USD/shares	10-Q	2025-11-06
Annual	2016-12-31	0.33	—	USD/shares	10-K	2019-02-22
Annual	2017-12-31	0.13	-60.6%	USD/shares	10-K	2020-02-28
Annual	2018-12-31	0.63	+384.6%	USD/shares	10-K	2021-02-26
Annual	2019-12-31	0.81	+28.6%	USD/shares	10-K	2022-02-25
Annual	2020-12-31	0.13	-84.0%	USD/shares	10-K	2023-02-24
Annual	2021-12-31	1.03	+692.3%	USD/shares	10-K	2024-02-29
Annual	2022-12-31	0.11	-89.3%	USD/shares	10-K	2025-02-28
Annual	2023-12-31	26.62	+24100.0%	USD/shares	10-K	2026-02-20
Annual	2024-12-31	-4.28	-116.1%	USD/shares	10-K	2026-02-20
Annual	2025-12-31	-3.8	+11.2%	USD/shares	10-K	2026-02-20

Balance Sheet

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Annual	2016-12-31	569746000.0	—	USD	10-K	2017-02-24
Annual	2017-12-31	574973000.0	+0.9%	USD	10-K	2018-02-23
Annual	2018-12-31	645464000.0	+12.3%	USD	10-K	2019-02-22
Annual	2019-12-31	798123000.0	+23.7%	USD	10-K	2020-02-28
Annual	2020-12-31	881975000.0	+10.5%	USD	10-K	2021-02-26
Annual	2021-12-31	897796000.0	+1.8%	USD	10-K	2022-02-25
Annual	2022-12-31	950000000.0	+5.8%	USD	10-K	2023-02-24
Annual	2023-12-31	950000000.0	+0.0%	USD	10-K	2024-02-29
Annual	2024-12-31	1456000000.0	+53.3%	USD	10-K	2025-02-28
Annual	2025-12-31	1730400000.0	+18.8%	USD	10-K	2026-02-20

Cash Flow

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Quarterly	2016-03-31	15034000.0	—	USD	10-Q	2017-05-04
Quarterly	2016-06-30	29294000.0	+94.9%	USD	10-Q	2017-08-03
Quarterly	2016-09-30	38039000.0	+29.9%	USD	10-Q	2017-11-02
Quarterly	2017-03-31	12249000.0	-67.8%	USD	10-Q	2018-05-03
Quarterly	2017-06-30	24256000.0	+98.0%	USD	10-Q	2018-08-02
Quarterly	2017-09-30	35183000.0	+45.0%	USD	10-Q	2018-11-01
Quarterly	2018-03-31	14905000.0	-57.6%	USD	10-Q	2019-05-02
Quarterly	2018-06-30	26893000.0	+80.4%	USD	10-Q	2019-08-08
Quarterly	2018-09-30	39000000.0	+45.0%	USD	10-Q	2019-11-07
Quarterly	2019-03-31	13288000.0	-65.9%	USD	10-Q	2020-05-07
Quarterly	2019-06-30	25008000.0	+88.2%	USD	10-Q	2020-08-06
Quarterly	2019-09-30	37059000.0	+48.2%	USD	10-Q	2020-11-05
Quarterly	2020-03-31	12866000.0	-65.3%	USD	10-Q	2021-04-28
Quarterly	2020-06-30	26796000.0	+108.3%	USD	10-Q	2021-08-05
Quarterly	2020-09-30	40092000.0	+49.6%	USD	10-Q	2021-11-04
Quarterly	2021-03-31	15444000.0	-61.5%	USD	10-Q	2022-05-05
Quarterly	2021-06-30	32661000.0	+111.5%	USD	10-Q	2022-08-05
Quarterly	2021-09-30	54620000.0	+67.2%	USD	10-Q	2022-11-04
Quarterly	2022-03-31	18121000.0	-66.8%	USD	10-Q	2023-05-05
Quarterly	2022-06-30	35409000.0	+95.4%	USD	10-Q	2023-08-09
Quarterly	2022-09-30	59380000.0	+67.7%	USD	10-Q	2023-11-09
Quarterly	2023-03-31	23204000.0	-60.9%	USD	10-Q	2024-05-09
Quarterly	2023-06-30	60653000.0	+161.4%	USD	10-Q	2024-08-08
Quarterly	2023-09-30	86023000.0	+41.8%	USD	10-Q	2024-11-07
Quarterly	2024-03-31	40883000.0	-52.5%	USD	10-Q	2025-05-08
Quarterly	2024-06-30	89650000.0	+119.3%	USD	10-Q	2025-08-07
Quarterly	2024-09-30	148894000.0	+66.1%	USD	10-Q	2025-11-06
Quarterly	2025-03-31	58088000.0	-61.0%	USD	10-Q	2025-05-08
Quarterly	2025-06-30	114288000.0	+96.7%	USD	10-Q	2025-08-07
Quarterly	2025-09-30	150538000.0	+31.7%	USD	10-Q	2025-11-06
Annual	2016-12-31	45234000.0	—	USD	10-K	2019-02-22
Annual	2017-12-31	45801000.0	+1.3%	USD	10-K	2020-02-28
Annual	2018-12-31	49937000.0	+9.0%	USD	10-K	2021-02-26
Annual	2019-12-31	46958000.0	-6.0%	USD	10-K	2022-02-25
Annual	2020-12-31	55952000.0	+19.2%	USD	10-K	2023-02-24
Annual	2021-12-31	69916000.0	+25.0%	USD	10-K	2024-02-29
Annual	2022-12-31	78971000.0	+13.0%	USD	10-K	2025-02-28
Annual	2023-12-31	129632000.0	+64.2%	USD	10-K	2026-02-20
Annual	2024-12-31	194998000.0	+50.4%	USD	10-K	2026-02-20
Annual	2025-12-31	187569000.0	-3.8%	USD	10-K	2026-02-20

Share Data

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Quarterly	2016-03-31	44593710.0	—	shares	10-Q	2017-05-04
Quarterly	2016-06-30	44757494.0	+0.4%	shares	10-Q	2017-08-03
Quarterly	2016-09-30	44816860.0	+0.1%	shares	10-Q	2017-11-02
Quarterly	2017-03-31	44917014.0	+0.2%	shares	10-Q	2018-05-03
Quarterly	2017-06-30	44988655.0	+0.2%	shares	10-Q	2018-08-02
Quarterly	2017-09-30	45118607.0	+0.3%	shares	10-Q	2018-11-01
Quarterly	2018-03-31	45294697.0	+0.4%	shares	10-Q	2019-05-02
Quarterly	2018-06-30	45536473.0	+0.5%	shares	10-Q	2019-08-08
Quarterly	2018-09-30	45699635.0	+0.4%	shares	10-Q	2019-11-07
Quarterly	2019-03-31	45644236.0	-0.1%	shares	10-Q	2020-05-07
Quarterly	2019-06-30	45912291.0	+0.6%	shares	10-Q	2020-08-06
Quarterly	2019-09-30	46019691.0	+0.2%	shares	10-Q	2020-11-05
Quarterly	2020-03-31	46391066.0	+0.8%	shares	10-Q	2021-04-28
Quarterly	2020-06-30	46686665.0	+0.6%	shares	10-Q	2021-08-05
Quarterly	2020-09-30	45815718.0	-1.9%	shares	10-Q	2021-11-04
Quarterly	2021-03-31	46507258.0	+1.5%	shares	10-Q	2022-05-05
Quarterly	2021-06-30	46229603.0	-0.6%	shares	10-Q	2022-08-05
Quarterly	2021-09-30	46866929.0	+1.4%	shares	10-Q	2022-11-04
Quarterly	2022-03-31	46929191.0	+0.1%	shares	10-Q	2023-05-05
Quarterly	2022-06-30	47029446.0	+0.2%	shares	10-Q	2023-08-09
Quarterly	2022-09-30	46736742.0	-0.6%	shares	10-Q	2023-11-09
Quarterly	2023-03-31	47381226.0	+1.4%	shares	10-Q	2024-05-09
Quarterly	2023-06-30	47526207.0	+0.3%	shares	10-Q	2024-08-08
Quarterly	2023-09-30	47227338.0	-0.6%	shares	10-Q	2024-11-07
Quarterly	2024-03-31	47416268.0	+0.4%	shares	10-Q	2025-05-08
Quarterly	2024-06-30	47511613.0	+0.2%	shares	10-Q	2025-08-07
Quarterly	2024-09-30	47426131.0	-0.2%	shares	10-Q	2025-11-06
Quarterly	2025-03-31	47676735.0	+0.5%	shares	10-Q	2025-05-08
Quarterly	2025-06-30	47592836.0	-0.2%	shares	10-Q	2025-08-07
Quarterly	2025-09-30	47603287.0	+0.0%	shares	10-Q	2025-11-06
Annual	2016-12-31	44873030.0	—	shares	10-K	2019-02-22
Annual	2017-12-31	45184203.0	+0.7%	shares	10-K	2020-02-28
Annual	2018-12-31	45780954.0	+1.3%	shares	10-K	2021-02-26
Annual	2019-12-31	46080395.0	+0.7%	shares	10-K	2022-02-25
Annual	2020-12-31	46668198.0	+1.3%	shares	10-K	2023-02-24
Annual	2021-12-31	46963920.0	+0.6%	shares	10-K	2024-02-29
Annual	2022-12-31	47207298.0	+0.5%	shares	10-K	2025-02-28
Annual	2023-12-31	47837512.0	+1.3%	shares	10-K	2026-02-20
Annual	2024-12-31	47627873.0	-0.4%	shares	10-K	2026-02-20
Annual	2025-12-31	47928826.0	+0.6%	shares	10-K	2026-02-20

Credit and Bond Coverage

Company-level

Long-Term Debt (latest annual)

1,730,400,000

Total Liabilities (latest annual)

3,163,632,000

Current Liabilities (latest annual)

220,841,000

Metrics

Frequency	Period End	Value	% Chg	Unit	Form	Filed
Quarterly	2018-03-31	-0.0699	—	ratio	10-Q	2019-05-02
Quarterly	2018-06-30	-0.1163	-66.4%	ratio	10-Q	2019-08-08
Quarterly	2018-09-30	-0.1714	-47.3%	ratio	10-Q	2019-11-07
Quarterly	2019-03-31	-0.0561	+67.3%	ratio	10-Q	2020-05-07
Quarterly	2019-06-30	-0.0926	-65.0%	ratio	10-Q	2020-08-06
Quarterly	2019-09-30	-0.1578	-70.4%	ratio	10-Q	2020-11-05
Quarterly	2020-03-31	-0.0415	+73.7%	ratio	10-Q	2021-04-28
Quarterly	2020-06-30	-0.0755	-81.9%	ratio	10-Q	2021-08-05
Quarterly	2020-09-30	-0.0492	+34.8%	ratio	10-Q	2021-11-04
Quarterly	2021-03-31	-0.0613	-24.5%	ratio	10-Q	2022-05-05
Quarterly	2021-06-30	-0.0487	+20.6%	ratio	10-Q	2022-08-05
Quarterly	2021-09-30	-0.0832	-70.9%	ratio	10-Q	2022-11-04
Quarterly	2022-03-31	-0.0028	+96.7%	ratio	10-Q	2023-05-05
Quarterly	2022-06-30	-0.0279	-904.3%	ratio	10-Q	2023-08-09
Quarterly	2022-09-30	-0.0087	+68.8%	ratio	10-Q	2023-11-09
Quarterly	2023-03-31	-0.0112	-28.4%	ratio	10-Q	2024-05-09
Quarterly	2023-06-30	2.0957	+18798.8%	ratio	10-Q	2024-08-08
Quarterly	2023-09-30	2.4276	+15.8%	ratio	10-Q	2024-11-07
Quarterly	2024-03-31	-0.1304	-105.4%	ratio	10-Q	2025-05-08
Quarterly	2024-06-30	-0.2350	-80.1%	ratio	10-Q	2025-08-07
Quarterly	2024-09-30	-0.4968	-111.4%	ratio	10-Q	2025-11-06
Quarterly	2025-03-31	-0.3643	+26.7%	ratio	10-Q	2025-05-08
Quarterly	2025-06-30	-2.3538	-546.1%	ratio	10-Q	2025-08-07
Quarterly	2025-09-30	3.8650	+264.2%	ratio	10-Q	2025-11-06
Annual	2016-12-31	-0.2803	—	ratio	10-K	2019-02-22
Annual	2017-12-31	-0.0573	+79.6%	ratio	10-K	2020-02-28
Annual	2018-12-31	-0.1924	-235.8%	ratio	10-K	2021-02-26
Annual	2019-12-31	-0.1842	+4.3%	ratio	10-K	2022-02-25
Annual	2020-12-31	-0.0212	+88.5%	ratio	10-K	2023-02-24
Annual	2021-12-31	-0.1291	-509.1%	ratio	10-K	2024-02-29
Annual	2022-12-31	-0.0099	+92.3%	ratio	10-K	2025-02-28
Annual	2023-12-31	2.0891	+21155.0%	ratio	10-K	2026-02-20
Annual	2024-12-31	-0.9158	-143.8%	ratio	10-K	2026-02-20
Annual	2025-12-31	2.8532	+411.6%	ratio	10-K	2026-02-20

8-K Material Event Details

65 filings · 130 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

364 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
2026-04-01	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Equity grant / award G	common stock	29,333	$0.00	$0	258,990
2026-04-01	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Other disposed transaction D	common stock	58,667	$0.00	$0	638,476
2026-03-31	Montagner Marc	—	Equity grant / award A	common stock	3,445	$0.00	$0	96,397
2026-03-06	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$23.35	$56,040	41,000
2026-03-05	FERGUSON Lewis H	—	Open-market sell S	common stock	2,206	$23.03	$50,804	20,449
2025-12-31	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Equity grant / award G	common stock	229,657	$0.00	$0	229,657
2025-12-31	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Equity grant / award A	common stock	229,657	$0.00	$0	926,800
2025-12-11	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	7,300	$23.99	$175,127	88,200
2025-12-08	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	4,800	$19.79	$94,992	33,800
2025-12-02	FERGUSON Lewis H	—	Open-market sell S	common stock	4,000	$20.34	$81,341	19,267
2025-12-01	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Equity grant / award A	common stock	2,400	$0.00	$0	95,500
2025-11-11	Kennedy Sheryl Lynn	—	Open-market sell S	common stock	2,400	$21.34	$51,221	10,012
2025-09-30	FERGUSON Lewis H	—	Equity grant / award A	common stock	2,395	$0.00	$0	23,267
2025-09-05	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$36.99	$88,776	36,200
2025-09-02	Harris Mark Andrew	VP & Chief Revenue Officer	Equity grant / award A	common stock	668	$0.00	$0	5,168
2025-08-21	Kennedy Sheryl Lynn	—	Open-market sell S	common stock	2,000	$36.35	$72,700	10,017
2025-08-08	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	818,909	$27.50	$22,519,998	697,143
2025-08-07	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	1,840,669	$32.60	$60,005,809	1,516,052
2025-06-30	Howard Eve N	—	Equity grant / award A	common stock	1,968	$0.00	$0	14,633
2025-06-16	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	25,000	$47.05	$1,176,368	3,356,721
2025-06-16	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	45,000	$47.14	$2,121,242	3,381,721
2025-06-13	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	10,000	$47.34	$473,362	3,426,721
2025-06-13	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	45,000	$47.42	$2,133,842	3,436,721
2025-06-12	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	10,000	$47.83	$478,348	3,481,721
2025-06-12	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	45,000	$47.87	$2,154,024	3,491,721
2025-06-11	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	10,000	$48.35	$483,511	3,536,721
2025-06-11	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	45,000	$48.55	$2,184,624	3,546,721
2025-06-10	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	15,000	$48.63	$729,494	3,591,721
2025-06-10	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	40,000	$48.70	$1,947,996	3,606,721
2025-06-09	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	15,000	$48.99	$734,878	3,646,721
2025-06-09	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	40,000	$48.51	$1,940,468	3,661,721
2025-06-06	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$47.95	$115,080	38,600
2025-06-05	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	35,000	$47.31	$1,655,784	3,781,721
2025-06-05	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	40,000	$47.29	$1,891,532	3,816,721
2025-06-04	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	2,000	$47.50	$94,999	55,142
2025-06-03	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	15,000	$46.86	$702,882	3,931,721
2025-06-03	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	50,000	$47.00	$2,349,985	3,946,721
2025-06-02	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	15,000	$46.13	$692,006	3,996,721
2025-06-02	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	50,000	$46.38	$2,319,135	4,011,721
2025-05-30	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	25,000	$45.90	$1,147,425	4,061,721
2025-05-29	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	25,000	$46.90	$1,172,592	4,086,721
2025-05-28	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	20,000	$47.41	$948,174	4,111,721
2025-05-27	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	20,000	$48.67	$973,322	4,131,721
2025-05-23	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	25,000	$46.93	$1,173,318	4,151,721
2025-05-22	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	25,000	$46.27	$1,156,768	4,176,721
2025-05-21	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	40,000	$46.81	$1,872,248	4,201,721
2025-05-20	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	15,000	$49.96	$749,348	4,241,721
2025-05-16	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	0	—	—	103,000
2025-05-16	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	15,000	$50.99	$764,925	4,256,721
2025-05-15	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	40,000	$50.38	$2,015,036	4,271,721
2025-05-14	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	30,000	$50.64	$1,519,140	4,311,721
2025-05-13	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	42,628	$50.45	$2,150,442	4,341,721
2025-05-13	Kennedy Sheryl Lynn	—	Open-market sell S	common stock	1,450	$50.19	$72,773	10,049
2025-05-12	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	11,372	$50.10	$569,790	4,384,349
2025-04-10	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	357	$0.00	$0	78,001
2025-04-04	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Other disposed transaction D	common stock	48,317	$0.00	$0	4,395,721
2025-03-31	Howell Deneen C	—	Equity grant / award A	common stock	1,352	$0.00	$0	17,689
2025-03-12	FERGUSON Lewis H	—	Open-market sell S	common stock	956	$69.36	$66,313	18,652
2025-03-10	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	357	$0.00	$0	78,358
2025-03-07	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$72.57	$174,168	41,000
2025-03-05	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	715	$0.00	$0	2,585
2025-03-04	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	60,000	$71.77	$4,305,978	4,444,038
2025-03-03	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	4,900	$72.06	$353,110	103,000
2025-01-21	BROOKS STEVEN D	—	Equity grant / award G	common stock	299	$0.00	$0	42,700
2025-01-14	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Equity grant / award A	common stock	96,000	$0.00	$0	4,504,038
2025-01-14	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Equity grant / award A	common stock	84,000	$0.00	$0	4,408,038
2025-01-09	KILMER HENRY W	VP OF NETWORK STRATEGY	Equity grant / award A	common stock	9,600	$0.00	$0	43,400
2025-01-01	FERGUSON Lewis H	—	Equity grant / award A	common stock	1,254	$0.00	$0	19,608
2024-12-18	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	485	$0.00	$0	935
2024-12-18	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	970	$0.00	$0	69,830
2024-12-16	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Other disposed transaction D	common stock	20,000	$75.88	$1,517,548	4,228,038
2024-12-12	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	4,800	$75.61	$362,942	33,800
2024-12-09	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	1,920	$76.60	$147,065	49,542
2024-12-04	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	900	$0.00	$0	70,800
2024-12-01	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$0.00	$0	38,600
2024-12-01	KILMER HENRY W	VP OF NETWORK STRATEGY	Equity grant / award A	common stock	2,400	$0.00	$0	38,600
2024-11-26	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	24,364	$82.69	$2,014,537	4,248,038
2024-11-25	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	35,636	$83.76	$2,984,943	4,272,402
2024-11-21	Bath Blake	—	Open-market sell S	common stock	6,220	$83.69	$520,565	10,000
2024-11-18	FERGUSON Lewis H	—	Open-market sell S	common stock	846	$81.76	$69,171	18,354
2024-11-12	Chang John B.	VP & CHIEF LEGAL OFFICER	Open-market sell S	common stock	2,280	$80.41	$183,328	69,300
2024-11-11	Howard Eve N	—	Open-market sell S	common stock	3,500	$82.02	$287,070	10,059
2024-10-01	Howard Eve N	—	Equity grant / award A	common stock	1,452	$0.00	$0	13,559
2024-10-01	BROOKS STEVEN D	—	Equity grant / award A	common stock	1,452	$0.00	$0	41,745
2024-09-12	Chang John B.	VP & CHIEF LEGAL OFFICER	Open-market sell S	common stock	1,400	$71.67	$100,338	71,580
2024-09-10	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	65,000	$71.75	$4,663,555	4,308,038
2024-09-04	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	1,920	$69.77	$133,958	50,982
2024-09-04	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$69.51	$166,824	36,200
2024-08-27	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	60,000	$72.82	$4,368,960	4,373,038
2024-08-23	Chang John B.	VP & CHIEF LEGAL OFFICER	Open-market sell S	common stock	2,055	$74.00	$152,070	72,980
2024-08-22	FERGUSON Lewis H	—	Open-market sell S	common stock	1,550	$72.62	$112,554	17,748
2024-07-01	Howell Deneen C	—	Equity grant / award A	common stock	1,675	$0.00	$0	13,631
2024-06-14	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	60,000	$51.78	$3,106,830	4,433,038
2024-06-12	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	60,000	$54.60	$3,276,000	4,493,038
2024-06-11	Montagner Marc	—	Open-market buy P	common stock	10,000	$52.61	$526,130	79,468
2024-06-10	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	2,400	$52.60	$126,252	93,300
2024-06-06	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$56.00	$134,400	38,600
2024-06-03	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	1,920	$58.97	$113,221	52,902
2024-05-23	Kennedy Sheryl Lynn	—	Open-market sell S	common stock	1,640	$57.79	$94,782	10,091
2024-05-21	FERGUSON Lewis H	—	Open-market sell S	common stock	2,000	$58.90	$117,802	17,623
2024-05-13	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	50,000	$59.44	$2,972,000	4,553,038
2024-04-01	Howell Deneen C	—	Equity grant / award A	common stock	1,370	$0.00	$0	11,956
2024-03-22	BROOKS STEVEN D	—	Equity grant / award G	common stock	300	$0.00	$0	38,618
2024-03-15	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	26,174	$64.21	$1,680,633	4,653,203
2024-03-13	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	30,000	$67.52	$2,025,600	4,679,377
2024-03-12	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Other disposed transaction D	common stock	50,000	$68.12	$3,406,000	4,709,377
2024-03-12	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	2,400	$68.17	$163,608	95,700
2024-03-11	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Other disposed transaction D	common stock	35,000	$67.93	$2,377,550	4,759,377
2024-03-11	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	35,000	$67.93	$2,377,550	4,759,377
2024-03-06	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Other disposed transaction D	common stock	21,387	$0.00	$0	4,794,377
2024-03-06	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	8,826	$72.55	$640,326	4,815,764
2024-03-05	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$73.47	$176,339	41,000
2024-03-01	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	1,920	$76.62	$147,108	54,822
2024-02-01	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	375	$0.00	$0	375
2024-01-03	BUBECK JAMES	CHIEF REVENUE OFFICER	Equity grant / award A	common stock	10,000	$0.00	$0	56,742
2024-01-03	BUBECK JAMES	CHIEF REVENUE OFFICER	Equity grant / award A	common stock	9,600	$0.00	$0	46,742
2024-01-03	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award A	common stock	30,000	$0.00	$0	75,410
2024-01-03	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award A	common stock	9,600	$0.00	$0	45,410
2024-01-01	FERGUSON Lewis H	—	Equity grant / award A	common stock	1,403	$0.00	$0	18,253
2024-01-01	BROOKS STEVEN D	—	Equity grant / award A	common stock	1,403	$0.00	$0	37,548
2023-12-26	Chang John B.	VP & CHIEF LEGAL OFFICER	Open-market sell S	common stock	3,550	$76.00	$269,800	38,310
2023-12-21	Chang John B.	VP & CHIEF LEGAL OFFICER	Open-market sell S	common stock	1,000	$74.00	$74,000	41,860
2023-12-20	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	450	$0.00	$0	450
2023-12-20	Chang John B.	VP & CHIEF LEGAL OFFICER	Equity grant / award G	common stock	900	$0.00	$0	42,860
2023-12-14	Chang John B.	VP & CHIEF LEGAL OFFICER	Open-market sell S	common stock	500	$72.00	$36,000	43,760
2023-12-13	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	20,000	$69.99	$1,399,800	4,740,590
2023-12-11	Chang John B.	VP & CHIEF LEGAL OFFICER	Other disposed transaction D	common stock	3,000	$69.00	$207,000	44,260
2023-12-07	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	4,800	$67.94	$326,132	28,800
2023-12-05	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	1,920	$66.12	$126,957	37,142
2023-12-04	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	9,700	$65.84	$638,646	48,700
2023-12-01	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	1,920	$63.70	$122,297	39,062
2023-11-30	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	3,396	$64.31	$218,409	4,797,194
2023-11-27	Kennedy Sheryl Lynn	—	Open-market sell S	common stock	925	$65.77	$60,841	8,958
2023-11-20	Bath Blake	—	Open-market sell S	common stock	9,000	$67.14	$604,251	10,320
2023-11-17	Bath Blake	—	Open-market sell S	common stock	8,621	$67.17	$579,032	19,320
2023-11-16	Bath Blake	—	Open-market sell S	common stock	379	$67.00	$25,393	27,941
2023-11-14	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	40,000	$66.37	$2,654,800	4,800,590
2023-10-01	de Sa Paul	—	Equity grant / award A	common stock	1,433	$0.00	$0	10,645
2023-09-15	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	18,191	$65.82	$1,197,364	4,840,590
2023-09-13	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	16,753	$66.70	$1,117,408	4,858,781
2023-09-12	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	28,247	$66.97	$1,891,631	4,875,534
2023-09-11	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	3,309	$67.16	$222,239	4,903,781
2023-09-08	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	41,691	$67.72	$2,823,231	4,907,090
2023-09-07	KILMER HENRY W	VP OF NETWORK STRATEGY	Open-market sell S	common stock	2,400	$69.16	$165,984	31,200
2023-09-05	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	4,850	$69.43	$336,736	53,550
2023-09-01	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	1,920	$70.96	$136,242	38,582
2023-08-29	FERGUSON Lewis H	—	Open-market sell S	common stock	650	$69.64	$45,266	16,367
2023-08-24	Kennedy Sheryl Lynn	—	Open-market sell S	common stock	550	$68.85	$37,865	8,450
2023-08-11	Kapp David Allen	VP & CHIEF TECHNICAL OFFICER	Open-market sell S	Common Stock	4,000	$69.07	$276,295	6,600
2023-08-10	Kapp David Allen	VP & CHIEF TECHNICAL OFFICER	Open-market sell S	Common Stock	5,000	$65.32	$326,603	10,600
2023-07-01	Howell Deneen C	—	Equity grant / award A	common stock	1,435	$0.00	$0	7,750
2023-06-14	BROOKS STEVEN D	—	Open-market sell S	common stock	4,202	$65.00	$273,130	33,277
2023-06-08	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	7,061	$62.44	$440,878	4,948,781
2023-06-07	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	42,334	$62.30	$2,637,459	4,955,842
2023-06-06	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	25,605	$62.25	$1,593,914	4,998,176
2023-06-05	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	4,850	$62.28	$302,035	58,400
2023-06-01	BUBECK JAMES	CHIEF REVENUE OFFICER	Open-market sell S	common stock	1,920	$61.07	$117,250	40,502
2023-05-30	Kennedy Sheryl Lynn	—	Open-market sell S	common stock	1,100	$63.14	$69,451	7,565
2023-05-11	BROOKS STEVEN D	—	Open-market sell S	common stock	3,798	$65.00	$246,875	37,479
2023-05-10	SCHAEFFER DAVE	CHAIRMAN, CEO, AND PRESIDENT	Open-market sell S	common stock	35,000	$65.38	$2,288,370	5,023,781
2023-05-09	WEED THADDEUS GERARD	VICE PRESIDENT, CFO	Open-market sell S	common stock	10,000	$64.96	$649,600	63,250
2023-05-03	Chang John B.	VP & CHIEF LEGAL OFFICER	Open-market sell S	common stock	2,500	$74.00	$185,000	42,360
2023-04-17	Chang John B.	VP & CHIEF LEGAL OFFICER	Open-market sell S	common stock	500	$70.00	$35,000	47,360
2023-04-01	Montagner Marc	—	Equity grant / award A	common stock	1,456	$0.00	$0	74,377
2023-03-13	Kennedy Sheryl Lynn	Dir	Open-market sell S	common stock	600	$61.66	$36,998	7,209
2023-03-07	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$63.51	$152,436	36,000
2023-03-03	WEED THADDEUS GERARD	VP, CFO, Treasurer	Open-market sell S	common stock	4,850	$64.30	$311,855	73,250
2023-03-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$64.49	$123,818	42,422
2023-02-01	Chang John B.	Chief Legal Officer	Open-market sell S	common stock	2,000	$70.00	$140,000	47,860
2023-01-26	Chang John B.	Chief Legal Officer	Open-market sell S	common stock	500	$68.00	$34,000	49,860
2023-01-17	Chang John B.	Chief Legal Officer	Open-market sell S	common stock	1,000	$66.00	$66,000	50,360
2023-01-12	Chang John B.	Chief Legal Officer	Open-market sell S	common stock	1,500	$64.00	$96,000	51,360
2023-01-03	Kapp David Allen	VP Optical Transport Engr &CTO	Equity grant / award A	common stock	9,600	$0.00	$0	15,600
2023-01-03	BROOKS STEVEN D	—	Equity grant / award A	common stock	1,709	$0.00	$0	39,821
2022-12-06	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	4,800	$57.36	$275,333	28,800
2022-12-05	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$57.45	$110,303	34,742
2022-12-02	WEED THADDEUS GERARD	VP, CFO Treasurer	Open-market sell S	common stock	9,700	$56.51	$548,163	48,700
2022-12-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$58.15	$111,645	36,662
2022-11-29	FERGUSON Lewis H	Dir	Open-market sell S	common stock	1,050	$57.50	$60,375	14,047
2022-11-22	Kapp David Allen	VP & Chief Technical Officer	Open-market sell S	common stock	600	$58.50	$35,100	6,000
2022-11-21	Kennedy Sheryl Lynn	Dir	Open-market sell S	common stock	962	$57.83	$55,631	6,100
2022-11-16	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	4,800	$58.01	$278,445	50,400
2022-11-09	Montagner Marc	Dir	Open-market buy P	common stock	5,000	$54.90	$274,500	71,212
2022-10-01	FERGUSON Lewis H	Dir	Equity grant / award A	common stock	1,626	$0.00	$0	15,097
2022-09-12	FERGUSON Lewis H	Dir	Open-market sell S	common stock	940	$55.13	$51,822	13,471
2022-09-09	WEED THADDEUS GERARD	VP, CFO Treasurer	Open-market sell S	common stock	4,850	$52.35	$253,880	53,550
2022-09-07	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$53.85	$129,248	31,200
2022-09-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$53.51	$102,732	36,182
2022-07-01	Kennedy Sheryl Lynn	Dir	Equity grant / award A	common stock	1,524	$0.00	$0	5,436
2022-06-07	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$59.20	$142,083	33,600
2022-06-02	WEED THADDEUS GERARD	VP, CFO Treasurer	Open-market sell S	common stock	4,850	$60.49	$293,376	58,400
2022-06-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$60.03	$115,248	38,102
2022-05-31	FERGUSON Lewis H	Dir	Open-market sell S	common stock	950	$60.72	$57,684	12,887
2022-05-04	WEED THADDEUS GERARD	VP, CFO Treasurer	Equity grant / award A	common stock	10,000	$0.00	$0	63,250
2022-04-06	Chang John B.	Dir	Open-market sell S	common stock	250	$72.00	$18,000	40,860
2022-04-05	Chang John B.	Dir	Open-market sell S	common stock	250	$70.00	$17,500	41,110
2022-04-01	Chang John B.	Dir	Open-market sell S	common stock	150	$68.00	$10,200	41,360
2022-03-31	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	150	$66.00	$9,900	41,510
2022-03-17	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	600	$62.96	$37,776	41,660
2022-03-09	FERGUSON Lewis H	Dir	Open-market sell S	common stock	725	$63.27	$45,867	12,375
2022-03-08	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$62.72	$150,534	36,000
2022-03-02	Wallace Sean Robert	VP, CFO & Treasurer	Open-market sell S	common stock	250	$63.30	$15,824	29,225
2022-03-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$62.94	$120,842	40,022
2022-01-03	SCHAEFFER DAVE	Chairman, President & CEO	Equity grant / award A	common stock	88,000	$0.00	$0	4,898,781
2022-01-03	SCHAEFFER DAVE	Chairman, President & CEO	Equity grant / award A	common stock	72,000	$0.00	$0	4,810,781
2021-12-14	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$76.77	$147,398	32,342
2021-12-13	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$77.26	$185,432	28,800
2021-12-08	FERGUSON Lewis H	Dir	Open-market sell S	common stock	900	$77.31	$69,579	13,100
2021-12-07	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$77.90	$186,954	31,200
2021-12-02	Wallace Sean Robert	VP, CFO & Treasurer	Open-market sell S	common stock	225	$75.18	$16,916	19,875
2021-12-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$74.92	$143,850	34,262
2021-11-23	Kennedy Sheryl Lynn	Dir	Open-market sell S	common stock	1,600	$77.36	$123,784	4,900
2021-11-18	Montagner Marc	Dir	Equity grant / award G	common stock	650	$0.00	$0	56,600
2021-11-16	Wallace Sean Robert	VP, CFO & Treasurer	Open-market sell S	common stock	200	$80.01	$16,002	20,100
2021-10-01	FERGUSON Lewis H	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	14,000
2021-09-07	Wallace Sean Robert	VP, CFO & Treasurer	Open-market sell S	common stock	300	$75.37	$22,611	20,300
2021-09-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$73.64	$141,383	33,782
2021-08-24	Kennedy Sheryl Lynn	Dir	Open-market sell S	common stock	1,750	$71.99	$125,990	4,750
2021-08-09	Bath Blake	Dir	Open-market sell S	common stock	8,750	$77.69	$679,766	15,925
2021-08-03	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	382	$78.20	$29,872	43,200
2021-08-02	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	3,572	$78.23	$279,430	43,582
2021-07-16	KUMMER RAYMOND B	CTO & VP Optical Transport	Open-market sell S	common stock	846	$78.24	$66,191	47,154
2021-07-02	KUMMER RAYMOND B	CTO & VP Optical Transport	Open-market sell S	common stock	4,800	$76.14	$365,484	48,000
2021-07-01	FERGUSON Lewis H	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	13,100
2021-06-11	Wallace Sean Robert	VP, CFO & Treasurer	Open-market sell S	common stock	1,000	$76.60	$76,595	20,600
2021-06-07	KUMMER RAYMOND B	CTO & VP Optical Transport	Open-market sell S	common stock	2,400	$77.00	$184,812	52,800
2021-06-03	FERGUSON Lewis H	Dir	Open-market sell S	common stock	250	$75.60	$18,900	11,350
2021-06-03	FERGUSON Lewis H	Dir	Open-market sell S	common stock	500	$75.53	$37,765	11,600
2021-06-02	ONEILL TIMOTHY G	VP Construction	Open-market sell S	common stock	2,400	$75.18	$180,440	33,600
2021-06-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$74.96	$143,922	35,702
2021-05-19	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	5,000	$74.66	$373,306	37,622
2021-05-17	Kennedy Sheryl Lynn	Dir	Open-market sell S	common stock	2,450	$76.43	$187,257	4,750
2021-05-10	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	558	$80.00	$44,640	32,660
2021-05-03	BROOKS STEVEN D	Dir	Open-market sell S	common stock	5,750	$76.08	$437,486	30,000
2021-04-30	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	558	$75.00	$41,850	33,218
2021-04-05	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	558	$70.00	$39,060	33,776
2021-04-01	KATZ CAROLYN	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	12,250
2021-03-15	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	558	$65.00	$36,270	34,334
2021-03-12	ONEILL TIMOTHY G	VP Construction	Open-market sell S	common stock	4,000	$63.30	$253,200	36,000
2021-03-10	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$60.43	$116,030	42,622
2021-03-05	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$57.64	$138,340	36,000
2021-03-04	Montagner Marc	Dir	Equity grant / award G	common stock	750	$0.00	$0	52,000
2021-03-02	Kennedy Sheryl Lynn	Dir	Open-market sell S	common stock	1,050	$59.34	$62,303	5,450
2021-02-24	Wallace Sean Robert	VP, CFO & Treasurer	Equity grant / award A	common stock	9,600	$0.00	$0	21,600
2021-02-24	BUBECK JAMES	Chief Revenue Officer	Equity grant / award A	common stock	9,600	$0.00	$0	44,542
2021-01-18	SCHAEFFER DAVE	Chairman, President & CEO	Other disposed transaction D	common stock	15,951	$0.00	$0	4,549,781
2021-01-04	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	558	$60.00	$33,480	25,292
2021-01-01	Montagner Marc	—	Equity grant / award A	common stock	1,750	$0.00	$0	52,750
2020-12-09	FERGUSON Lewis H	Dir	Open-market sell S	common stock	950	$57.01	$54,156	9,450
2020-12-07	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$57.93	$139,032	28,800
2020-12-03	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$58.01	$139,224	31,200
2020-12-01	ONEILL TIMOTHY G	VP Construction	Equity grant / award A	common stock	2,400	$0.00	$0	33,600
2020-11-09	Kennedy Sheryl Lynn	Dir	Open-market sell S	common stock	1,200	$58.55	$70,257	4,750
2020-10-01	Montagner Marc	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	51,000
2020-09-15	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	400	$66.35	$26,540	31,200
2020-09-08	FERGUSON Lewis H	Dir	Open-market sell S	common stock	910	$66.05	$60,106	8,650
2020-09-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$67.47	$129,540	36,382
2020-07-31	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	500	$90.00	$45,000	26,000
2020-07-21	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	500	$85.00	$42,500	26,500
2020-07-01	Montagner Marc	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	49,250
2020-06-16	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	400	$80.49	$32,196	33,600
2020-06-11	Kennedy Sheryl Lynn	Dir	Open-market sell S	common stock	1,750	$75.54	$132,193	3,500
2020-06-09	FERGUSON Lewis H	Dir	Open-market sell S	common stock	1,000	$76.52	$76,520	7,810
2020-06-05	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	2,000	$76.81	$153,620	34,000
2020-06-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$78.28	$150,299	38,302
2020-05-26	Montagner Marc	Dir	Open-market sell S	common stock	3,000	$77.06	$231,191	47,500
2020-05-11	Wallace Sean Robert	VP, CFO & Treasurer	Equity grant / award A	common stock	12,000	$0.00	$0	12,000
2020-04-01	Montagner Marc	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	50,500
2020-03-11	FERGUSON Lewis H	Dir	Open-market sell S	common stock	300	$82.85	$24,854	7,060
2020-03-10	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,352	$82.68	$111,783	36,000
2020-03-06	Montagner Marc	Dir	Equity grant / award G	common stock	300	$0.00	$0	48,750
2020-03-06	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	2,000	$84.64	$169,280	37,352
2020-03-05	Montagner Marc	Dir	Equity grant / award G	common stock	350	$0.00	$0	49,050
2020-03-03	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	4,800	$81.22	$389,873	43,200
2020-03-02	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	300	$76.66	$22,997	27,600
2020-03-01	SCHAEFFER DAVE	Chairman, President & CEO	Other disposed transaction D	common stock	32,608	$0.00	$0	4,565,732
2020-02-14	SCHAEFFER DAVE	Chairman, President & CEO	Equity grant / award A	common stock	105,000	$0.00	$0	4,598,340
2020-02-14	SCHAEFFER DAVE	Chairman, President & CEO	Equity grant / award A	common stock	84,000	$0.00	$0	4,493,340
2020-01-08	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$68.61	$164,659	28,800
2020-01-07	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	2,000	$67.42	$134,840	29,752
2020-01-02	Chang John B.	VP & Chief Legal Officer	Open-market sell S	common stock	534	$65.46	$34,957	18,300
2020-01-01	BROOKS STEVEN D	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	27,000
2019-12-31	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$66.08	$126,878	32,542
2019-12-12	FERGUSON Lewis H	Dir	Open-market sell S	common stock	570	$61.52	$35,069	5,610
2019-12-06	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	2,000	$61.97	$123,940	31,752
2019-12-05	Bath Blake	Dir	Open-market sell S	common stock	200	$62.45	$12,489	17,925
2019-12-04	Bath Blake	Dir	Open-market sell S	common stock	3,800	$62.31	$236,788	18,125
2019-12-03	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	5,000	$61.74	$308,700	62,550
2019-12-02	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$61.76	$118,583	34,462
2019-11-11	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	2,500	$63.29	$158,225	34,752
2019-11-05	Kennedy Sheryl Lynn	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	1,750
2019-10-01	WEINGARTEN TIM	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	28,111
2019-09-10	FERGUSON Lewis H	Dir	Open-market sell S	common stock	675	$58.28	$39,342	4,430
2019-09-05	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	5,000	$60.00	$300,000	67,550
2019-09-03	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$59.77	$114,760	36,632
2019-08-30	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$60.98	$60,980	37,252
2019-08-21	LIEBHABER RICHARD	Dir	Open-market sell S	common stock	5,000	$59.90	$299,518	66,095
2019-07-01	FERGUSON Lewis H	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	5,105
2019-06-13	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	1,400	$60.84	$85,176	72,550
2019-06-10	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	2,400	$61.24	$146,966	41,400
2019-06-06	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	4,000	$58.62	$234,480	38,252
2019-06-05	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	5,000	$58.50	$292,500	73,950
2019-06-04	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	3,000	$57.05	$171,165	43,800
2019-06-03	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$57.41	$110,221	38,802
2019-05-31	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$57.52	$57,520	42,252
2019-05-23	FERGUSON Lewis H	Dir	Open-market sell S	common stock	515	$57.45	$29,586	3,355
2019-05-22	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	2,440	$58.40	$142,496	46,800
2019-05-09	Bath Blake	Dir	Open-market sell S	common stock	10,000	$57.88	$578,776	18,425
2019-05-06	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	1,500	$57.11	$85,663	78,950
2019-05-01	SCHAEFFER DAVE	Chairman, President & CEO	Equity grant / award A	common stock	105,000	$0.00	$0	4,409,340
2019-05-01	SCHAEFFER DAVE	Chairman, President & CEO	Equity grant / award A	common stock	84,000	$0.00	$0	4,304,340
2019-04-05	KUMMER RAYMOND B	CTO; VP Optical Transport	Equity grant / award G	common stock	1,000	$0.00	$0	39,640
2019-04-05	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	2,600	$56.12	$145,900	40,640
2019-04-04	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	400	$56.00	$22,401	43,240
2019-04-01	FERGUSON Lewis H	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	3,870
2019-03-21	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	2,800	$52.32	$146,494	43,640
2019-03-20	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	200	$52.01	$10,402	46,440
2019-03-15	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	3,000	$51.00	$153,000	46,640
2019-03-13	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	2,000	$51.00	$102,000	33,652
2019-03-12	BROOKS STEVEN D	Dir	Open-market sell S	common stock	9,900	$50.13	$496,280	20,000
2019-03-07	FERGUSON Lewis H	Dir	Open-market sell S	common stock	580	$48.60	$28,187	2,120
2019-03-06	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	2,400	$48.92	$117,418	28,800
2019-03-04	Montagner Marc	Dir	Equity grant / award G	common stock	1,000	$0.00	$0	45,750
2019-03-01	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	1,920	$48.99	$94,067	31,372
2019-02-19	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$50.00	$50,000	37,652
2019-01-02	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	250	$44.51	$11,127	33,292
2019-01-01	WEINGARTEN TIM	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	22,861
2018-12-14	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	3,000	$46.89	$140,658	66,050
2018-12-06	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	3,000	$46.68	$140,043	31,200
2018-12-03	BEURY ROBERT N JR	VP & Chief Legal Officer	Open-market sell S	common stock	3,000	$49.16	$147,472	38,840
2018-11-08	WEINGARTEN TIM	Dir	Open-market sell S	common stock	2,500	$51.01	$127,523	21,111
2018-10-01	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$55.80	$55,800	38,652
2018-09-13	Bath Blake	Dir	Open-market sell S	common stock	3,589	$54.94	$197,186	23,175
2018-09-12	Bath Blake	Dir	Open-market sell S	common stock	7,411	$55.03	$407,864	26,764
2018-09-12	BEURY ROBERT N JR	VP & Chief Legal Officer	Open-market sell S	common stock	2,000	$54.95	$109,910	45,840
2018-09-11	Bath Blake	Dir	Open-market sell S	common stock	11,000	$54.86	$603,448	34,175
2018-09-06	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	3,000	$54.98	$164,928	34,200
2018-09-05	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	4,500	$53.55	$240,975	69,050
2018-09-04	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$54.50	$54,500	39,652
2018-08-01	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$51.95	$51,950	40,652
2018-07-02	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$53.00	$53,000	41,652
2018-07-01	WEINGARTEN TIM	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	21,861
2018-06-20	LIEBHABER RICHARD	Dir	Equity grant / award G	common stock	5,000	$0.00	$0	68,545
2018-06-19	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	2,100	$54.76	$114,988	49,640
2018-06-15	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	3,000	$53.78	$161,332	51,740
2018-06-06	KUMMER RAYMOND B	CTO; VP Optical Transport	Open-market sell S	common stock	3,000	$52.67	$157,997	54,740
2018-06-04	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	4,500	$51.12	$230,039	73,550
2018-06-01	BEURY ROBERT N JR	VP & Chief Legal Officer	Open-market sell S	common stock	3,000	$51.14	$153,434	50,840
2018-05-18	Montagner Marc	Dir	Open-market sell S	common stock	2,000	$50.00	$100,000	41,500
2018-05-16	BROOKS STEVEN D	Dir	Open-market sell S	common stock	2,000	$50.65	$101,298	24,650
2018-05-11	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	2,000	$50.36	$100,724	33,542
2018-05-09	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	3,000	$49.32	$147,952	78,050
2018-05-08	BROOKS STEVEN D	Dir	Open-market sell S	common stock	5,000	$48.34	$241,696	26,650
2018-05-03	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$50.00	$50,000	43,652
2018-04-12	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$45.75	$45,750	44,652
2018-04-01	WEINGARTEN TIM	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	20,111
2018-03-16	WEINGARTEN TIM	Dir	Open-market sell S	common stock	1,700	$43.60	$74,120	18,361
2018-03-12	WEED THADDEUS GERARD	VP, CFO & Treasurer	Open-market sell S	common stock	6,000	$45.17	$271,015	81,050
2018-03-06	KILMER HENRY W	VP of IP Engineering	Open-market sell S	common stock	3,000	$43.36	$130,081	40,200
2018-03-02	BUBECK JAMES	Chief Revenue Officer	Open-market sell S	common stock	300	$43.01	$12,902	35,542
2018-03-01	ONEILL TIMOTHY G	VP Field Engineering	Open-market sell S	common stock	1,000	$42.95	$42,950	45,652
2018-02-26	LIEBHABER RICHARD	Dir	Equity grant / award G	common stock	1,000	$0.00	$0	71,795
2018-02-21	ONEILL TIMOTHY G	VP Field Engineering	Equity grant / award A	common stock	9,600	$0.00	$0	46,652
2018-01-01	WEINGARTEN TIM	Dir	Equity grant / award A	common stock	1,750	$0.00	$0	20,061

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