$CCOI insider trading

Over the last 12 months, Cogent Communications Holdings insiders reported no purchases and 15 sales totaling $1.1M across SEC Form 4 filings.

$1.1M
15
5
0%
Side
$10K$100KJun '26JulAug
KILMER HENRY W
WEED THADDEUS GERARD
FERGUSON Lewis H
Kennedy Sheryl Lynn
SCHAEFFER DAVE

All insider trades

Scroll the table sideways for price, value and marks.

Jun 16, 2026WEED THADDEUS GERARD▼ Sale4,850$16.79$81K-2.4%
Jun 15, 2026KILMER HENRY W▼ Sale2,400$17.01$41K-5.9%
May 28, 2026FERGUSON Lewis H▼ Sale2,800$20.36$57K-11.7%
Apr 1, 2026SCHAEFFER DAVE▽ Sale to issuer58,667-8.4%
Mar 6, 2026KILMER HENRY W▼ Sale2,400$23.35$56K-5.5%
Mar 5, 2026Kennedy Sheryl Lynn▼ Sale3,300$22.99$76K-24.6%
Mar 5, 2026FERGUSON Lewis H▼ Sale2,206$23.03$51K-9.7%
Mar 5, 2026WEED THADDEUS GERARD▼ Sale4,850$22.63$110K-2.3%
Dec 11, 2025WEED THADDEUS GERARD▼ Sale7,300$23.99$175K-7.6%
Dec 8, 2025KILMER HENRY W▼ Sale4,800$19.79$95K-12.4%
Dec 2, 2025FERGUSON Lewis H▼ Sale4,000$20.34$81K-17.2%
Dec 1, 2025KILMER HENRY W▼ Sale2,400-5.9%
Nov 11, 2025Kennedy Sheryl Lynn▼ Sale2,400$21.34$51K-19.3%
Sep 5, 2025KILMER HENRY W▼ Sale2,400$36.99$89K-6.2%
Sep 2, 2025WEED THADDEUS GERARD▼ Sale4,900$36.98$181K-5%
Aug 21, 2025Kennedy Sheryl Lynn▼ Sale2,000$36.35$73K-16.6%
Aug 8, 2025SCHAEFFER DAVE▼ Sale818,909$27.5$22.5M-54%

Every $CCOI filing on this page is one API call away

The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Cogent Communications Holdings filings can reach your inbox instead.

Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $CCOI feed.