Insider · CIK 0001166976
Dave Schaeffer
ceopresidentchairofficerdirector
Files at CCOI (COGENT COMMUNICATIONS HOLDINGS, INC.). First filing Nov 27, 2024, latest Aug 11, 2025.
Dave Schaeffer files SEC Form 4 as CEO, president, chair and director at CCOI (COGENT COMMUNICATIONS HOLDINGS, INC.). Since Nov 27, 2024, Dave Schaeffer has reported 0 open-market buys worth $0 and 27 open-market sells worth $142M, the latest filed on Aug 11, 2025.
A track record needs three past buys with six months of prices behind them; Dave Schaeffer has 0, so none is measured yet.
The newest scored trade: sold $23M of CCOI on Aug 8, 2025, filed Aug 11, 2025, scored 78 (notable).
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 27
$0 bought, $142M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
CCOI: COGENT COMMUNICATIONS HOLDINGS, INC.
CCOIOct 9, 2026 · close 8.54
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 78Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $23M 818,909 shares | -54% | 0% from low-62% from high | |
| 78Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $60M 1,840,669 shares | -55% | 0% from low-57% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $2.6M 55,000 shares | -2% | +4% from low-42% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $3.3M 70,000 shares | -2% | +4% from low-42% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $2.7M 55,000 shares | -2% | +7% from low-41% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $2.6M 55,000 shares | -2% | +7% from low-41% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $2.7M 55,000 shares | -2% | +8% from low-40% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $3.5M 75,000 shares | -2% | +5% from low-42% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $3.8M 80,000 shares | -2% | +6% from low-41% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $2.7M 55,000 shares | -1% | +9% from low-40% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $3.6M 75,000 shares | -2% | +6% from low-41% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $3.1M 65,000 shares | -2% | +5% from low-42% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $3.0M 65,000 shares | -2% | +2% from low-43% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $1.1M 25,000 shares | -1% | +1% from low-44% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $1.2M 25,000 shares | -1% | +5% from low-42% from high | |
| 64Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $948k 20,000 shares | -0% | +4% from low-42% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $973k 20,000 shares | -0% | +9% from low-40% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $1.2M 25,000 shares | -1% | +4% from low-42% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $1.2M 25,000 shares | -1% | +2% from low-44% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $1.9M 40,000 shares | -1% | 0% from low-45% from high | |
| 61Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $749k 15,000 shares | -0% | +2% from low-40% from high | |
| 62Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $765k 15,000 shares | -0% | +3% from low-39% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $2.0M 40,000 shares | -1% | +3% from low-39% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $1.5M 30,000 shares | -1% | +4% from low-39% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $2.7M 54,000 shares | -1% | +3% from low-39% from high | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $4.3M 60,000 shares | -1% | - | |
| 65Notable | COGENT COMMUNICATIONS HOLDINGS, INC. | $5.0M 60,000 shares | -1% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jun 16, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 45,000 0.09% of outstanding | $2.1M | Jun 16, 2025 | $46M |
| Jun 16, 2025 | CCOI Cogent Communications Holdings, Inc. | 25,000 0.05% of outstanding | $1.2M | Jun 16, 2025 | $46M |
| Jun 13, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 45,000 0.09% of outstanding | $2.2M | Jun 13, 2025 | $46M |
| Jun 13, 2025 | CCOI Cogent Communications Holdings, Inc. | 10,000 0.02% of outstanding | $480k | Jun 13, 2025 | $47M |
| Jun 12, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 45,000 0.09% of outstanding | $2.2M | Jun 12, 2025 | $44M |
| Jun 12, 2025 | CCOI Cogent Communications Holdings, Inc. | 10,000 0.02% of outstanding | $482k | Jun 12, 2025 | $45M |
| Jun 11, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 45,000 0.09% of outstanding | $2.2M | Jun 11, 2025 | $42M |
| Jun 11, 2025 | CCOI Cogent Communications Holdings, Inc. | 10,000 0.02% of outstanding | $486k | Jun 11, 2025 | $42M |
| Jun 10, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 40,000 0.08% of outstanding | $1.9M | Jun 10, 2025 | $40M |
| Jun 10, 2025 | CCOI Cogent Communications Holdings, Inc. | 15,000 0.03% of outstanding | $734k | Jun 10, 2025 | $39M |
| Jun 9, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 40,000 0.08% of outstanding | $1.9M | Jun 9, 2025 | $37M |
| Jun 9, 2025 | CCOI Cogent Communications Holdings, Inc. | 15,000 0.03% of outstanding | $718k | Jun 9, 2025 | $37M |
| Jun 6, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 50,000 0.10% of outstanding | $2.4M | Jun 6, 2025 | $33M |
| Jun 6, 2025 | CCOI Cogent Communications Holdings, Inc. | 30,000 0.06% of outstanding | $1.4M | Jun 6, 2025 | $33M |
| Jun 5, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 40,000 0.08% of outstanding | $1.9M | Jun 5, 2025 | $29M |
| Jun 5, 2025 | CCOI Cogent Communications Holdings, Inc. | 35,000 0.07% of outstanding | $1.7M | Jun 5, 2025 | $29M |
| Jun 4, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 50,000 0.10% of outstanding | $2.4M | Jun 4, 2025 | $26M |
| Jun 4, 2025 | CCOI Cogent Communications Holdings, Inc. | 25,000 0.05% of outstanding | $1.2M | Jun 4, 2025 | $26M |
| Jun 3, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 15,000 0.03% of outstanding | $703k | Jun 3, 2025 | $23M |
| Jun 3, 2025 | CCOI Cogent Communications Holdings, Inc. | 50,000 0.10% of outstanding | $2.3M | Jun 3, 2025 | $27M |
| Jun 2, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 15,000 0.03% of outstanding | $692k | Jun 2, 2025 | $24M |
| Jun 2, 2025 | CCOI Cogent Communications Holdings, Inc. | 50,000 0.10% of outstanding | $2.3M | Jun 2, 2025 | $24M |
| May 30, 2025 | CCOI Cogent Communications Holdings, Inc. | 25,000 0.05% of outstanding | $1.2M | May 30, 2025 | $23M |
| May 29, 2025 | CCOI Cogent Communications Holdings, Inc. | 25,000 0.05% of outstanding | $1.2M | May 29, 2025 | $22M |
| May 28, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | 20,000 0.04% of outstanding | $948k | May 28, 2025 | $21M |
Transactions
The newest 50 of 53 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 4, 2026 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | AGrant or award common stock | +1,000,000 | $0.00 | $0 | 1,609,143 | May 4, 2026 |
| May 4, 2026 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | GGift common stock | -1,000,000 | $0.00 | $0 | 609,143 | May 4, 2026 |
| May 4, 2026 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | GGift common stockindirect: by family trust | +1,000,000 | $0.00 | $0 | 1,258,990 | May 4, 2026 |
| Apr 1, 2026 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | DDisposition to issuer common stock | -58,667 | $0.00 | $0 | 638,476 | Apr 2, 2026 |
| Apr 1, 2026 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | GGift common stock | -29,333 | $0.00 | $0 | 609,143 | Apr 2, 2026 |
| Apr 1, 2026 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | GGift common stockindirect: by family trust | +29,333 | $0.00 | $0 | 258,990 | Apr 2, 2026 |
| Dec 31, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | AGrant or award common stock | +229,657 | $0.00 | $0 | 926,800 | Jan 5, 2026 |
| Dec 31, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | GGift common stock | -229,657 | $0.00 | $0 | 697,143 | Jan 5, 2026 |
| Dec 31, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | GGift common stockindirect: by family trust | +229,657 | $0.00 | $0 | 229,657 | Jan 5, 2026 |
| Aug 8, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -818,909 | $27.50 | $23M | 697,143 | Aug 11, 2025 |
| Aug 7, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -1,840,669 | $32.60 | $60M | 1,516,052 | Aug 8, 2025 |
| Jun 16, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -45,000 | $47.14 | $2.1M | 3,381,721 | Jun 16, 2025 |
| Jun 13, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -45,000 | $47.42 | $2.1M | 3,436,721 | Jun 16, 2025 |
| Jun 16, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -25,000 | $47.05 | $1.2M | 3,356,721 | Jun 16, 2025 |
| Jun 13, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -10,000 | $47.34 | $473k | 3,426,721 | Jun 16, 2025 |
| Jun 12, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -45,000 | $47.87 | $2.2M | 3,491,721 | Jun 12, 2025 |
| Jun 11, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -45,000 | $48.55 | $2.2M | 3,546,721 | Jun 12, 2025 |
| Jun 12, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -10,000 | $47.83 | $478k | 3,481,721 | Jun 12, 2025 |
| Jun 11, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -10,000 | $48.35 | $484k | 3,536,721 | Jun 12, 2025 |
| Jun 10, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -40,000 | $48.70 | $1.9M | 3,606,721 | Jun 10, 2025 |
| Jun 10, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -15,000 | $48.63 | $729k | 3,591,721 | Jun 10, 2025 |
| Jun 9, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -40,000 | $48.51 | $1.9M | 3,661,721 | Jun 9, 2025 |
| Jun 6, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -50,000 | $47.78 | $2.4M | 3,731,721 | Jun 9, 2025 |
| Jun 5, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -40,000 | $47.29 | $1.9M | 3,816,721 | Jun 9, 2025 |
| Jun 9, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -15,000 | $48.99 | $735k | 3,646,721 | Jun 9, 2025 |
| Jun 6, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -30,000 | $47.78 | $1.4M | 3,701,721 | Jun 9, 2025 |
| Jun 5, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -35,000 | $47.31 | $1.7M | 3,781,721 | Jun 9, 2025 |
| Jun 4, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -50,000 | $47.76 | $2.4M | 3,881,721 | Jun 5, 2025 |
| Jun 4, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -25,000 | $47.76 | $1.2M | 3,856,721 | Jun 5, 2025 |
| Jun 3, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -50,000 | $47.00 | $2.3M | 3,946,721 | Jun 4, 2025 |
| Jun 3, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -15,000 | $46.86 | $703k | 3,931,721 | Jun 4, 2025 |
| Jun 2, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -50,000 | $46.38 | $2.3M | 4,011,721 | Jun 3, 2025 |
| Jun 2, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -15,000 | $46.13 | $692k | 3,996,721 | Jun 3, 2025 |
| May 30, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -25,000 | $45.90 | $1.1M | 4,061,721 | Jun 2, 2025 |
| May 29, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -25,000 | $46.90 | $1.2M | 4,086,721 | May 30, 2025 |
| May 28, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -20,000 | $47.41 | $948k | 4,111,721 | May 29, 2025 |
| May 27, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -20,000 | $48.67 | $973k | 4,131,721 | May 28, 2025 |
| May 23, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -25,000 | $46.93 | $1.2M | 4,151,721 | May 27, 2025 |
| May 22, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -25,000 | $46.27 | $1.2M | 4,176,721 | May 23, 2025 |
| May 21, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -40,000 | $46.81 | $1.9M | 4,201,721 | May 22, 2025 |
| May 20, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -15,000 | $49.96 | $749k | 4,241,721 | May 21, 2025 |
| May 16, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -15,000 | $51.00 | $765k | 4,256,721 | May 19, 2025 |
| May 15, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -40,000 | $50.38 | $2.0M | 4,271,721 | May 16, 2025 |
| May 14, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -30,000 | $50.64 | $1.5M | 4,311,721 | May 15, 2025 |
| May 12, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -11,372 | $50.10 | $570k | 4,384,349 | May 14, 2025 |
| May 13, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -42,628 | $50.45 | $2.2M | 4,341,721 | May 14, 2025 |
| Apr 4, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | DDisposition to issuer common stock | -48,317 | $0.00 | $0 | 4,395,721 | Apr 4, 2025 |
| Mar 4, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | SOpen-market sale common stock | -60,000 | $71.77 | $4.3M | 4,444,038 | Mar 5, 2025 |
| Jan 14, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | AGrant or award common stock | +84,000 | $0.00 | $0 | 4,408,038 | Jan 15, 2025 |
| Jan 14, 2025 | CCOI COGENT COMMUNICATIONS HOLDINGS, INC. | AGrant or award common stock | +96,000 | $0.00 | $0 | 4,504,038 | Jan 15, 2025 |
50 of 53 rows shown.
Questions about Dave Schaeffer
Answered from the filings on this page, as of the latest one.
Is Dave Schaeffer buying or selling?
Not in the last 12 months. Dave Schaeffer's latest open-market trade on SEC Form 4 was sold $23M of CCOI on Aug 8, 2025.
How did Dave Schaeffer's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Dave Schaeffer has 0.
Where does Dave Schaeffer file Form 4?
Dave Schaeffer has filed Form 4 at CCOI (COGENT COMMUNICATIONS HOLDINGS, INC.) as CHAIRMAN, CEO, AND PRESIDENT. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.