Companies / Cogent Communications Holdings, Inc.
Cogent Communications Holdings, Inc.
Insider flow · last 90 daysNet sells $179.3K
Financials · FY2017
Ownership
51.2M shares outstanding · as of Jul 31, 2026
Ownership
| Insiders | 5.23% | 2,680,060 |
| 10%+ / strategic | 24.68% | 12,638,935 |
| Institutions | 79.32% | 40,623,514 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 12
View all →| Insider | % of shares | Shares |
|---|---|---|
Schaeffer DaveCEOCHAIRMAN, CEO, AND PRESIDENT · Director | 3.65% | 1,868,133 |
Weed Thaddeus GerardVICE PRESIDENT, CFO | 0.39% | 197,900 |
Chang John B.VP & CHIEF LEGAL OFFICER | 0.37% | 188,847 |
Harris Mark AndrewVP & Chief Revenue Officer | 0.22% | 110,168 |
Montagner MarcDirector | 0.19% | 99,842 |
Brooks Steven DDirector | 0.11% | 55,248 |
Kilmer Henry WVP OF NETWORK STRATEGY | 0.08% | 38,600 |
de Sa PaulDirector | 0.06% | 30,347 |
Howell Deneen CDirector | 0.06% | 28,885 |
FERGUSON Lewis HDirector | 0.05% | 24,539 |
Institutional holders 254
View all →| Holder | Value | % of shares |
|---|---|---|
| $120.31M | 10.90% | |
| $102.38M | 14.40% | |
| $87.03M | 7.88% | |
| $49.23M | 4.46% | |
| $38.58M | 5.43% | |
| $36.46M | 3.78% | |
| $30.24M | 2.74% | |
| $30.18M | 2.73% | |
| $27.00M | 2.45% | |
| $26.87M | 2.43% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | First Trust Advisors LP 13F manager | Exit | Common stock | $-25.38M | -1.2M -100.00% | 0 | medium |
| Q1 2026 as of | Park West Asset Management LLC 13F manager | Add | Common stock | $9.91M | +526K +37.34% | 1,935,201 3.78% of shares | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $9.84M | +709K +34.26% | 2,779,367 5.43% of shares | medium |
| Q1 2026 as of | Royal Bank of Canada 13F manager | Trim | Common stock | $-9.33M | -494K -98.91% | 5,447 0.01% of shares | medium |
| Q1 2026 as of | D. E. Shaw & Co., Inc. 13F manager | Add | Common stock | $8.64M | +459K +163.73% | 738,815 1.44% of shares | medium |
| Q4 2023 as of | Barclays PLC 13F manager | Add | Common stock | $3.71M | +49K +184.21% | 75,358 0.15% of shares | low |
| Q2 2024 as of | Barclays PLC 13F manager | Add | Common stock | $3.66M | +65K +133.70% | 113,302 0.22% of shares | low |
| Q1 2026 as of | Millennium Management LLC 13F manager | Add | Common stock | $3.57M | +190K +488.91% | 228,396 0.45% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| State Street Corporation | Passive13G | — |
| Vanguard Group Inc | Passive13G/A | — |
| BlackRock, Inc. | Passive13G/A | — |
| Turtle Creek Asset Management Inc. | Passive13G/A | — |
| Park West Asset Management LLC | Passive13G/A | — |
| Vanguard Portfolio Management | Passive13G | — |
| Park West Asset Management LLC | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| CCOI | — | 19239V302 |