CCOI
Cogent Communications Holdings, Inc.$24.21-0.47 (-1.90%)Prev Close$24.68·MCap$1.20B·P/E—·Vol313.8K·Yield0.09%
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
40
$133.69M
◆
Net Activity
Net Seller
$133.69M
●
Active Insiders
6
last 12 mo
Over the past 12 months, insider activity at Cogent Communications Holdings, Inc. (CCOI) has been exclusively selling, with 0 insider purchases totaling $0.00 and 40 insider sales totaling $133.69M. The most recent insider transaction was by KILMER HENRY W (officer: VP OF NETWORK STRATEGY), who sold $56.0K worth of shares on Mar 9, 2026. Cogent Communications Holdings, Inc. operates in the Communication Services sector, within the Telecommunications Services industry, with a market cap of $1.20B.
CCOI Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 9, 2026 | KILMER HENRY W | officer: VP OF NETWORK STRATEGY | Sell | 2,400 | $23.35 | $56.0K | 41,000 |
| Dec 11, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 7,300 | $23.99 | $175.1K | 0 |
| Dec 8, 2025 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $19.79 | $95.0K | 0 |
| Dec 2, 2025 | FERGUSON Lewis H | Director | Sell | 4,000 | $20.34 | $81.3K | 0 |
| Nov 11, 2025 | Kennedy Sheryl Lynn | Director | Sell | 2,400 | $21.34 | $51.2K | 0 |
| Sep 5, 2025 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $36.99 | $88.8K | 0 |
| Sep 2, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $36.98 | $181.2K | 0 |
| Aug 21, 2025 | Kennedy Sheryl Lynn | Director | Sell | 2,000 | $36.35 | $72.7K | 0 |
| Aug 8, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 818,909 | $27.50 | $22.52M1.6% OS | 0 |
| Aug 7, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 1,840,669 | $32.60 | $60.01M3.7% OS | 0 |
| Jun 16, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 70,000 | $47.11 | $3.30M | 0 |
| Jun 13, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $47.40 | $2.61M | 0 |
| Jun 12, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $47.86 | $2.63M | 0 |
| Jun 11, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.51 | $2.67M | 0 |
| Jun 10, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.68 | $2.68M | 0 |
| Jun 9, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.64 | $2.68M | 0 |
| Jun 9, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $48.04 | $235.4K | 0 |
| Jun 6, 2025 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $47.95 | $115.1K | 0 |
| Jun 6, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 80,000 | $47.78 | $3.82M | 0 |
| Jun 5, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 75,000 | $47.30 | $3.55M | 0 |
| Jun 4, 2025 | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 2,000 | $47.50 | $95.0K | 0 |
| Jun 4, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 75,000 | $47.76 | $3.58M | 0 |
| Jun 3, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $46.97 | $3.05M | 0 |
| Jun 2, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $46.33 | $3.01M | 0 |
| May 30, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $45.90 | $1.15M | 0 |
| May 29, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.90 | $1.17M | 0 |
| May 28, 2025 | FERGUSON Lewis H | Director | Sell | 1,100 | $47.57 | $52.3K | 0 |
| May 28, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $47.41 | $948.2K | 0 |
| May 28, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 100 | $47.67 | $4.8K | 0 |
| May 27, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $48.67 | $973.3K | 0 |
| May 23, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.93 | $1.17M | 0 |
| May 22, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.27 | $1.16M | 0 |
| May 21, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $46.81 | $1.87M | 0 |
| May 20, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 15,000 | $49.96 | $749.3K | 0 |
| May 16, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 15,000 | $51.00 | $764.9K | 0 |
| May 16, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 100 | $50.41 | $5.0K | 0 |
| May 15, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $50.38 | $2.02M | 0 |
| May 14, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 30,000 | $50.64 | $1.52M | 0 |
| May 13, 2025 | Kennedy Sheryl Lynn | Director | Sell | 1,450 | $50.19 | $72.8K | 0 |
| May 12, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 54,000 | $50.37 | $2.72M | 0 |
| Mar 12, 2025 | FERGUSON Lewis H | Director | Sell | 956 | $69.36 | $66.3K | 0 |
| Mar 7, 2025 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $72.57 | $174.2K | 0 |
| Mar 4, 2025 | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 2,000 | $71.67 | $143.3K | 0 |
| Mar 4, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $71.77 | $4.31M | 0 |
| Mar 3, 2025 | Kennedy Sheryl Lynn | Director | Sell | 1,425 | $72.96 | $104.0K | 0 |
| Mar 3, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $72.06 | $353.1K | 0 |
| Dec 16, 2024 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $75.88 | $1.52M | 0 |
| Dec 12, 2024 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $75.61 | $362.9K | 0 |
| Dec 9, 2024 | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $76.60 | $147.1K | 0 |
| Dec 1, 2024 | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $81.42 | $156.3K | 0 |
Showing 1–50 of 194
1 / 4
CCOI Insider Buying Activity
The following table shows recent insider purchases of Cogent Communications Holdings, Inc. (CCOI) stock reported via SEC Form 4 filings.
No insider buying activity found for CCOI in the last 12 months.
CCOI Insider Selling Activity
The following table shows recent insider sales of Cogent Communications Holdings, Inc. (CCOI) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 9, 2026 | KILMER HENRY W | officer: VP OF NETWORK STRATEGY | Sell | 2,400 | $23.35 | $56.0K | 41,000 |
| Dec 11, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 7,300 | $23.99 | $175.1K | 0 |
| Dec 8, 2025 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $19.79 | $95.0K | 0 |
| Dec 2, 2025 | FERGUSON Lewis H | Director | Sell | 4,000 | $20.34 | $81.3K | 0 |
| Nov 11, 2025 | Kennedy Sheryl Lynn | Director | Sell | 2,400 | $21.34 | $51.2K | 0 |
| Sep 5, 2025 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $36.99 | $88.8K | 0 |
| Sep 2, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $36.98 | $181.2K | 0 |
| Aug 21, 2025 | Kennedy Sheryl Lynn | Director | Sell | 2,000 | $36.35 | $72.7K | 0 |
| Aug 8, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 818,909 | $27.50 | $22.52M1.6% OS | 0 |
| Aug 7, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 1,840,669 | $32.60 | $60.01M3.7% OS | 0 |
| Jun 16, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 70,000 | $47.11 | $3.30M | 0 |
| Jun 13, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $47.40 | $2.61M | 0 |
| Jun 12, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $47.86 | $2.63M | 0 |
| Jun 11, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.51 | $2.67M | 0 |
| Jun 10, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.68 | $2.68M | 0 |
| Jun 9, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.64 | $2.68M | 0 |
| Jun 9, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $48.04 | $235.4K | 0 |
| Jun 6, 2025 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $47.95 | $115.1K | 0 |
| Jun 6, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 80,000 | $47.78 | $3.82M | 0 |
| Jun 5, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 75,000 | $47.30 | $3.55M | 0 |
| Jun 4, 2025 | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 2,000 | $47.50 | $95.0K | 0 |
| Jun 4, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 75,000 | $47.76 | $3.58M | 0 |
| Jun 3, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $46.97 | $3.05M | 0 |
| Jun 2, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $46.33 | $3.01M | 0 |
| May 30, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $45.90 | $1.15M | 0 |
| May 29, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.90 | $1.17M | 0 |
| May 28, 2025 | FERGUSON Lewis H | Director | Sell | 1,100 | $47.57 | $52.3K | 0 |
| May 28, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $47.41 | $948.2K | 0 |
| May 28, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 100 | $47.67 | $4.8K | 0 |
| May 27, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $48.67 | $973.3K | 0 |
| May 23, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.93 | $1.17M | 0 |
| May 22, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.27 | $1.16M | 0 |
| May 21, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $46.81 | $1.87M | 0 |
| May 20, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 15,000 | $49.96 | $749.3K | 0 |
| May 16, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 15,000 | $51.00 | $764.9K | 0 |
| May 16, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 100 | $50.41 | $5.0K | 0 |
| May 15, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $50.38 | $2.02M | 0 |
| May 14, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 30,000 | $50.64 | $1.52M | 0 |
| May 13, 2025 | Kennedy Sheryl Lynn | Director | Sell | 1,450 | $50.19 | $72.8K | 0 |
| May 12, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 54,000 | $50.37 | $2.72M | 0 |
| Mar 12, 2025 | FERGUSON Lewis H | Director | Sell | 956 | $69.36 | $66.3K | 0 |
| Mar 7, 2025 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $72.57 | $174.2K | 0 |
| Mar 4, 2025 | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 2,000 | $71.67 | $143.3K | 0 |
| Mar 4, 2025 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $71.77 | $4.31M | 0 |
| Mar 3, 2025 | Kennedy Sheryl Lynn | Director | Sell | 1,425 | $72.96 | $104.0K | 0 |
| Mar 3, 2025 | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $72.06 | $353.1K | 0 |
| Dec 16, 2024 | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $75.88 | $1.52M | 0 |
| Dec 12, 2024 | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $75.61 | $362.9K | 0 |
| Dec 9, 2024 | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $76.60 | $147.1K | 0 |
| Dec 1, 2024 | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $81.42 | $156.3K | 0 |
CCOI Insiders
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