Insider tradingForm 4

COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI) Insider Trading

2 open-market trades reported since Sep 3, 2026: 0 purchases worth $0 and 2 sales worth $68K.

By insider

Insider	Role	Buys	Bought	Sells	Sold	Latest
Henry W. Kilmer	VP	0	$0	1	$22K	Sep 15, 2026
Thaddeus Gerard Weed	CFO	0	$0	1	$45K	Sep 3, 2026

CCOI insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	3 mo. after	Filing
Sep 15	Sep 15	Henry W. KilmerVP	VP	▼ SELL	2,400	9.21	$22K	−6.2%		Form 4 ↗
Sep 3	Sep 2	Thaddeus Gerard WeedCFO	CFO	▼ SELL	4,850	9.37	$45K	−2.5%		Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings