Cogent Communications Holdings
CCOI · NASDAQ
$7.72−$0.04 (−0.52%)TodayMarket closed ·
Prev close $7.76
Who owns CCOI
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 55.1% of CCOI’s shares.
- BlackRock Institutional Trust Company, N.A.13.5%
- Turtle Creek Asset Management Inc.8.4%
- Park West Asset Management LLC6.2%
- State Street Investment Management (US)5.5%
- Next 6 largest institutions21.5%
- All other shareholders44.9%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 6.74M | 13.47% |
| Turtle Creek Asset Management Inc. | 4.20M | 8.39% |
| Park West Asset Management LLC | 3.11M | 6.20% |
| State Street Investment Management (US) | 2.78M | 5.55% |
| Vanguard Portfolio Management, LLC | 2.38M | 4.76% |
| EdgePoint Investment Group Inc. | 2.28M | 4.56% |
| Vanguard Capital Management, LLC | 2.04M | 4.07% |
| Newtyn Management, LLC | 1.66M | 3.31% |
| Geode Capital Management, L.L.C. | 1.25M | 2.49% |
| Citadel Advisors LLC | 1.17M | 2.34% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Small-Cap ETF | 2.91M | 5.80% |
| EdgePoint Global Growth & Income Portfolio | 1.92M | 3.83% |
| Vanguard Total Stock Market Index Fund | 1.44M | 2.88% |
| iShares Russell 2000 ETF | 1.27M | 2.54% |
| Vanguard Small-Cap Index Fund | 1.04M | 2.07% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $300.33K (6 trades) of CCOI on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| KILMER HENRY W | Sale | 2.40K | $22.10K |
| WEED THADDEUS GERARD | Sale | 4.85K | $45.44K |
| Howard Eve N | Award | 3.44K | — |
| Howell Deneen C | Award | 3.44K | — |
| de Sa Paul | Award | 3.44K | — |
| BROOKS STEVEN D | Award | 3.44K | — |
| WEED THADDEUS GERARD | Sale | 4.85K | $81.43K |
| KILMER HENRY W | Sale | 2.40K | $40.82K |
| FERGUSON Lewis H | Sale | 2.80K | $57.01K |
| Kennedy Sheryl Lynn | Sale | 3.30K | $53.52K |
Short interest
Settled Sep 30, 2026
- Shares short
- 6.01M
- Days to cover
- 2.36
- % of shares outstanding
- 11.99%
- Average daily volume
- 2.54M
- Change since last report
- −12.5%
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