Cogent Communications CCOI
$3.98 −$0.71 (-15.14%)
Market closed · Nov 6, 8:10 pm ET · Last extended-hours $4.00 +0.50%
Open$4.57
Prev close$4.69
Day range$3.56 – $4.57
Volume5.17M
Market cap$203.79M
P/E (TTM)–
Dividend yield2.01%
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Institutional ownership92.6%-8.53 pts vs. prior quarter
Institutions holding258-11 vs. prior quarter
Insider trades (recent)34 buys / 16 sellsNet buying
Short interest13.88% of floatDays to cover 3.8 · as of 15 Oct 2026
Short-sale volume share18.4%5-day average of daily volume
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: −$266.8K (10 inflow days, 10 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 34.2% of shares outstanding.
Largest holders
By investor type
Reported short interest has held roughly steady near 13.88% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Nuveen Asset Management LLC | Insurance Company | 2026/Q3 | +103,230 | 0.3% |
| Nuveen Asset Management LLC | Insurance Company | 2026/Q3 | +100,085 | 0.3% |
| Park West Asset Management LLC | Hedge Fund | 2026/Q3 | +1,171,138 | 6.5% |
| Citadel Advisors LLC | Hedge Fund | 2026/Q3 | +746,261 | 2.4% |
| Goldman Sachs Asset Management, L.P. | Mutual Fund | 2026/Q3 | +624,681 | 1.9% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +506,102 | 5.8% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +404,665 | 1.3% |
| Ayal Capital Advisors Limited | Hedge Fund | 2026/Q3 | +400,000 | 0.8% |
| Gilder Gagnon Howe & Co. LLC | Mutual Fund | 2026/Q3 | +284,493 | 1.6% |
| BNP Paribas Financial Markets SNC | Private Company | 2026/Q3 | +250,321 | 0.7% |
| Leap Investments LP | Mutual Fund | 2026/Q3 | +250,154 | 0.5% |
| MYDA Advisors LLC | Hedge Fund | 2026/Q3 | +240,000 | 0.5% |
| XTX Markets Limited | Private Company | 2026/Q3 | +190,966 | 0.5% |
| Squarepoint OPS LLC | Hedge Fund | 2026/Q3 | +174,787 | 0.5% |
| Y-Intercept (Hong Kong) Limited | Mutual Fund | 2026/Q3 | +154,019 | 0.3% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 29 Sep 2026 | Steven Brooks | Independent Director | Other Acquisition | +3,445 | – | 62,138 |
| 29 Sep 2026 | Marc Montagner | Lead Independent Director | Other Acquisition | +3,445 | – | 103,287 |
| 29 Sep 2026 | Lewis Ferguson | Independent Director | Other Acquisition | +3,445 | – | 27,984 |
| 29 Sep 2026 | Sheryl Kennedy | Independent Director | Other Acquisition | +3,445 | – | 17,135 |
| 29 Sep 2026 | Eve Howard | Independent Director | Other Acquisition | +3,445 | – | 30,751 |
| 29 Sep 2026 | Paul De Sa | Independent Director | Other Acquisition | +3,445 | – | 37,237 |
| 29 Sep 2026 | Deneen Howell | Independent Director | Other Acquisition | +3,445 | – | 35,775 |
| 14 Sep 2026 | Henry Kilmer | Vice President of IP Engineering | Open Market Disposition | -2,400 | $9.21 | 36,200 |
| 1 Sep 2026 | Thaddeus Weed | Chief Financial Officer | Open Market Disposition | -4,850 | $9.37 | 193,050 |
| 29 Jun 2026 | Steven Brooks | Independent Director | Other Acquisition | +3,445 | – | 58,693 |
| 29 Jun 2026 | Marc Montagner | Lead Independent Director | Other Acquisition | +3,445 | – | 99,842 |
| 29 Jun 2026 | Lewis Ferguson | Independent Director | Other Acquisition | +3,445 | – | 24,539 |
| 29 Jun 2026 | Sheryl Kennedy | Independent Director | Other Acquisition | +3,445 | – | 13,690 |
| 29 Jun 2026 | Eve Howard | Independent Director | Other Acquisition | +3,445 | – | 27,306 |
| 29 Jun 2026 | Paul De Sa | Independent Director | Other Acquisition | +3,445 | – | 33,792 |
| 29 Jun 2026 | Deneen Howell | Independent Director | Other Acquisition | +3,445 | – | 32,330 |
| 15 Jun 2026 | Thaddeus Weed | Chief Financial Officer | Open Market Disposition | -4,850 | $16.79 | 197,900 |
| 14 Jun 2026 | Henry Kilmer | Vice President of IP Engineering | Private Disposition | -2,400 | $17.01 | 38,600 |
| 8 Jun 2026 | Henry Kilmer | Vice President of IP Engineering | Intent to Sell (Form 144) | -2,400 | $17.55 | – |
| 27 May 2026 | Lewis Ferguson | Independent Director | Private Disposition | -2,800 | $20.36 | 21,094 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 7,108,242 | 13.9% | 3.8 |
| 30 Sep 2026 | 6,005,450 | 11.7% | 2.4 |
| 15 Sep 2026 | 6,863,303 | 13.4% | 3.6 |
| 31 Aug 2026 | 7,172,491 | 14.0% | 4.5 |
| 14 Aug 2026 | 6,747,898 | 13.2% | 3.2 |
| 31 Jul 2026 | 6,954,163 | 13.9% | 6.4 |
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