Schaeffer Dave

Cogent Communications Holdings, Inc. · CHAIRMAN

Schaeffer Dave is listed in filings as CHAIRMAN at Cogent Communications Holdings, Inc.. This profile follows SEC Form 4 activity through May 4, 2026, including sale activity. Recent filings connect the profile to Cogent Communications Holdings, Inc. (CCOI). The current snapshot covers public activity from Jun 13, 2024 to May 4, 2026. Reported amounts are shown as $22.5M to $2.1M. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.

History Trades

Company	Value	Action	Price	Last Price
Cogent Communications Holdings, Inc.CCOI	$60M1.8M shares	SellAug 7, 2025	$32.60	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M45k shares	SellJun 16, 2025	$47.14	$11.71
Cogent Communications Holdings, Inc.CCOI	$1M25k shares	SellJun 16, 2025	$47.05	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M45k shares	SellJun 13, 2025	$47.42	$11.71
Cogent Communications Holdings, Inc.CCOI	$473k10k shares	SellJun 13, 2025	$47.34	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M45k shares	SellJun 12, 2025	$47.87	$11.71
Cogent Communications Holdings, Inc.CCOI	$478k10k shares	SellJun 12, 2025	$47.83	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M45k shares	SellJun 11, 2025	$48.55	$11.71
Cogent Communications Holdings, Inc.CCOI	$484k10k shares	SellJun 11, 2025	$48.35	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M40k shares	SellJun 10, 2025	$48.70	$11.71
Cogent Communications Holdings, Inc.CCOI	$729k15k shares	SellJun 10, 2025	$48.63	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M40k shares	SellJun 9, 2025	$48.51	$11.71
Cogent Communications Holdings, Inc.CCOI	$735k15k shares	SellJun 9, 2025	$48.99	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M50k shares	SellJun 6, 2025	$47.78	$11.71
Cogent Communications Holdings, Inc.CCOI	$1M30k shares	SellJun 6, 2025	$47.78	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M40k shares	SellJun 5, 2025	$47.29	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M35k shares	SellJun 5, 2025	$47.31	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M50k shares	SellJun 4, 2025	$47.76	$11.71
Cogent Communications Holdings, Inc.CCOI	$1M25k shares	SellJun 4, 2025	$47.76	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M50k shares	SellJun 3, 2025	$47.00	$11.71
Cogent Communications Holdings, Inc.CCOI	$703k15k shares	SellJun 3, 2025	$46.86	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M50k shares	SellJun 2, 2025	$46.38	$11.71
Cogent Communications Holdings, Inc.CCOI	$692k15k shares	SellJun 2, 2025	$46.13	$11.71
Cogent Communications Holdings, Inc.CCOI	$1M25k shares	SellMay 30, 2025	$45.90	$11.71
Cogent Communications Holdings, Inc.CCOI	$1M25k shares	SellMay 29, 2025	$46.90	$11.71
Cogent Communications Holdings, Inc.CCOI	$948k20k shares	SellMay 28, 2025	$47.41	$11.71
Cogent Communications Holdings, Inc.CCOI	$973k20k shares	SellMay 27, 2025	$48.67	$11.71
Cogent Communications Holdings, Inc.CCOI	$1M25k shares	SellMay 23, 2025	$46.93	$11.71
Cogent Communications Holdings, Inc.CCOI	$1M25k shares	SellMay 22, 2025	$46.27	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M40k shares	SellMay 21, 2025	$46.81	$11.71
Cogent Communications Holdings, Inc.CCOI	$749k15k shares	SellMay 20, 2025	$49.96	$11.71
Cogent Communications Holdings, Inc.CCOI	$765k15k shares	SellMay 16, 2025	$51.00	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M40k shares	SellMay 15, 2025	$50.38	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M30k shares	SellMay 14, 2025	$50.64	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M42.6k shares	SellMay 13, 2025	$50.45	$11.71
Cogent Communications Holdings, Inc.CCOI	$570k11.4k shares	SellMay 12, 2025	$50.10	$11.71
Cogent Communications Holdings, Inc.CCOI	$4M60k shares	SellMar 4, 2025	$71.77	$11.71
Cogent Communications Holdings, Inc.CCOI	$2M24.4k shares	SellNov 26, 2024	$82.69	$11.71
Cogent Communications Holdings, Inc.CCOI	$3M35.6k shares	SellNov 25, 2024	$83.76	$11.71
Cogent Communications Holdings, Inc.CCOI	$5M65k shares	SellSep 10, 2024	$71.75	$11.71
Cogent Communications Holdings, Inc.CCOI	$4M60k shares	SellAug 27, 2024	$72.82	$11.71
Cogent Communications Holdings, Inc.CCOI	$3M60k shares	SellJun 14, 2024	$51.78	$11.71
Cogent Communications Holdings, Inc.CCOI	$3M60k shares	SellJun 12, 2024	$54.60	$11.71