Cogent Communications Holdings, Inc.
Cogent Communications Holdings, Inc. (CCOI) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CCOI · as of Sep 30, 2025
Ownership Breakdown
294
Institutional Holders
▼ 19 vs Q2
$1.96B
Total Inst. Value
▼ $391.00M vs Q2
50.08M
Shares Outstanding
freeFloat 92.22%
50.81M
13F Shares Held
▲ 2.16M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CCOI largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. communications services, nec | 6.89M | 14.48% | 14.48% | $264.31B | Nov 12, 2025 | ▲ 411.6K |
VANGUARD GROUP INC communications services, nec | 5.36M | 11.27% | 11.27% | $205.66B | Nov 7, 2025 | ▲ 271.0K |
TURTLE CREEK ASSET MANAGEMENT INC. communications services, nec | 4.60M | 9.67% | 9.67% | $176.56B | Nov 14, 2025 | ▲ 1.81M |
EDGEPOINT INVESTMENT GROUP INC. communications services, nec | 2.28M | 4.79% | 4.79% | $87.51B | Nov 14, 2025 | ▲ 2.4K |
STATE STREET CORP communications services, nec | 1.94M | 4.07% | 4.07% | $74.31B | Nov 14, 2025 | ▲ 149.4K |
MORGAN STANLEY communications services, nec | 1.80M | 3.78% | 3.78% | $69.05B | May 27, 2026 | ▲ 556.5K |
INVESCO LTD. communications services, nec | 1.40M | 2.95% | 2.95% | $53.79B | Nov 13, 2025 | ▲ 399.3K |
MAGNOLIA GROUP, LLC communications services, nec | 1.27M | 2.67% | 2.67% | $48.79B | Oct 29, 2025 | ▲ 179.1K |
GEODE CAPITAL MANAGEMENT, LLC communications services, nec | 1.15M | 2.41% | 2.41% | $44.01B | Nov 12, 2025 | ▲ 87.1K |
BANK OF AMERICA CORP /DE/ communications services, nec | 1.15M | 2.41% | 2.41% | $43.97B | Feb 3, 2026 | ▲ 970.4K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
32
Increased
+7.96M shares4
New Positions
first time holders13
Decreased
−2.81M shares0
Sold Out
fully exitedNet shares change (top 50)
+5.15M
+7.96M / −2.81M
Net new holders
+23
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CCOI insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
3
Buy transactions
5
Sell transactions
0.60
Buy/Sell ratio
$1M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
FERGUSON Lewis H director | May 28, 2026 | Sale | 2,800 | $20.36 | $57.0K | 21.1K | Form 4 ↗ |
Kennedy Sheryl Lynn director | May 14, 2026 | Sale | 3,300 | $16.22 | $53.5K | 10.2K | Form 4 ↗ |
SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | May 4, 2026 | Award | 1,000,000 | — | — | 1.61M | Form 4 ↗ |
SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | May 4, 2026 | Gift | 1,000,000 | — | — | 1.26M | Form 4 ↗ |
SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | May 4, 2026 | Gift | 1,000,000 | — | — | 609.1K | Form 4 ↗ |
SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | Apr 1, 2026 | D-Return | 58,667 | — | — | 638.5K | Form 4 ↗ |
SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | Apr 1, 2026 | Gift | 29,333 | — | — | 609.1K | Form 4 ↗ |
SCHAEFFER DAVE CHAIRMAN, CEO, AND PRESIDENT | Apr 1, 2026 | Gift | 29,333 | — | — | 259.0K | Form 4 ↗ |
Montagner Marc director | Mar 31, 2026 | Award | 3,445 | — | — | 96.4K | Form 4 ↗ |
Kennedy Sheryl Lynn director | Mar 31, 2026 | Award | 3,445 | — | — | 13.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Cogent Communications Holdings, Inc. (CCOI) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 7.78%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Cogent Communications Holdings, Inc. is BLACKROCK, INC., holding approximately 6.89 million shares — equal to 14.48% of outstanding shares — as of September 30, 2025.
A total of 294 institutional investors currently hold CCOI stock, with a combined institutional value of approximately $1.96 billion as of the most recent 13F filing period.
Frequently asked questions
CCOI ownershipCogent Communications Holdings, Inc. (CCOI) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is BLACKROCK, INC. with a 14.48% stake. Company insiders hold 7.78%. Data sourced from SEC Form 13F as of September 30, 2025.