SCHAEFFER DAVE Insider Trading Activity (CCOI)

Profile

Dave Schaeffer is the Chairman, CEO, and President of Cogent Communications Holdings, Inc., a leading provider of high-capacity internet services. Under his leadership, Cogent has grown to carry a significant portion of the world's internet traffic, focusing on dedicated internet access and virtual private networking for corporate clients.

Role	Insider
Notability	50/100

Board memberships

Cogent Communications Holdings, Inc.

Awards & honors

Led Cogent to significant market share in internet services
Oversaw expansion of high-capacity internet infrastructure
Established Cogent as a key player in corporate internet access

Recent Transactions

Date	Ticker	Company	Code	Shares	Price	Value
2026-05-04	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	G — Bona-fide gift	1.00M	$0.00
2026-05-04	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	G — Bona-fide gift	1.00M	$0.00
2026-05-04	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	A — Grant or award	1.00M	$0.00
2026-04-02	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	G — Bona-fide gift	29.3K	$0.00
2026-04-02	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	G — Bona-fide gift	29.3K	$0.00
2026-04-02	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	D — Derivative transaction	58.7K	$0.00
2025-08-08	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	818.9K	$27.50	$22.52M
2025-08-07	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	1.84M	$32.60	$60.01M
2025-06-16	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	25.0K	$47.05	$1.18M
2025-06-16	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	45.0K	$47.14	$2.12M
2025-06-13	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	10.0K	$47.34	$473K
2025-06-13	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	45.0K	$47.42	$2.13M
2025-06-12	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	10.0K	$47.83	$478K
2025-06-12	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	45.0K	$47.87	$2.15M
2025-06-11	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	10.0K	$48.35	$484K
2025-06-11	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	45.0K	$48.55	$2.18M
2025-06-10	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	15.0K	$48.63	$729K
2025-06-10	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	40.0K	$48.70	$1.95M
2025-06-09	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	15.0K	$48.99	$735K
2025-06-09	CCOI	COGENT COMMUNICATIONS HOLDINGS, INC.	S — Open-market sale	40.0K	$48.51	$1.94M

Frequently Asked Questions

Who is SCHAEFFER DAVE?

How many SEC Form 4 filings has SCHAEFFER DAVE submitted recently?

1 primary Form 4 filings in the last 90 days, covering 1 company.

Has SCHAEFFER DAVE been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 39 open-market sales ($137.31M) across all tracked filings.

Where can I see all of SCHAEFFER DAVE's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

SCHAEFFER DAVE — SEC Form 4 Insider Trading Activity

Summary