CCOI COGENT COMMUNICATIONS HOLDINGS, INC.: institutional ownership and insider trading
242 funds reported holding $882M of COGENT COMMUNICATIONS HOLDINGS, INC. in their latest 13F filings; in Q2 2026 funds net sold $83.8M, with 39 new positions and 49 funds selling out; over the last 12 months insiders bought $0 and sold $996K on the open market.
Famous investors holding CCOI
- Ken Griffin (Citadel Advisors): $22.6M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $3.95M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $1.65M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $683K, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $305K, 0.0% of the portfolio
Largest institutional holders of CCOI
- VANGUARD GROUP INC — $120M
- BlackRock, Inc. (BLK) — $102M
- Turtle Creek Asset Management Inc. — $58.3M
- BOSTON FINANCIAL MANGEMENT LLC — $46.0M
- Park West Asset Management LLC — $43.1M
- STATE STREET CORP (STT, STT-PG) — $38.6M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $33.1M
- EdgePoint Investment Group Inc. — $31.7M
- VANGUARD CAPITAL MANAGEMENT LLC — $28.3M
- Newtyn Management, LLC — $23.0M
Recent CCOI insider trades
- Sep 15, 2026: Kilmer Henry W sold 2,400 shares ($22.1K)
- Sep 2, 2026: Weed Thaddeus Gerard sold 4,850 shares ($45.4K)
- Jun 16, 2026: Weed Thaddeus Gerard sold 4,850 shares ($81.4K)
- Jun 15, 2026: Kilmer Henry W sold 2,400 shares ($40.8K)
5%+ owners
- BlackRock, Inc.: 7.7% (Schedule 13G/A, filed Oct 5, 2026)
- Park West Asset Management LLC: 5.6% (Schedule 13G/A, filed Jun 17, 2026)
- STATE STREET CORPORATION: 5.5% (Schedule 13G, filed Aug 7, 2026)