CMCSA COMCAST CORP: institutional ownership and insider trading
2,076 funds reported holding $93.4B of COMCAST CORP in their latest 13F filings; in Q2 2026 funds net bought $1.96B, with 135 new positions and 287 funds selling out; over the last 12 months insiders bought $0 and sold $2.28M on the open market.
Famous investors holding CMCSA
- David Einhorn (Greenlight Capital): $33.0M, 0.9% of the portfolio
- Tom Russo (Gardner Russo & Quinn): $53.9M, 0.6% of the portfolio
- Tom Gayner (Markel Group): $19.7M, 0.2% of the portfolio
- Two Sigma (Two Sigma Investments): $120M, 0.1% of the portfolio
- Ray Dalio (Bridgewater Associates): $22.6M, 0.1% of the portfolio
- Tweedy, Browne (Tweedy, Browne Company): $769K, 0.1% of the portfolio
- Ken Griffin (Citadel Advisors): $389M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $97.8M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $25.6M, 0.0% of the portfolio
Largest institutional holders of CMCSA
- VANGUARD GROUP INC — $11.0B
- BlackRock, Inc. (BLK) — $7.69B
- VANGUARD CAPITAL MANAGEMENT LLC — $5.71B
- STATE STREET CORP (STT, STT-PG) — $4.79B
- CHARLES SCHWAB INVESTMENT MANAGEMENT INC — $3.27B
- Invesco Ltd. (IVZ) — $3.07B
- Capital Research Global Investors — $2.85B
- DODGE & COX — $2.85B
- Capital World Investors — $2.57B
- GEODE CAPITAL MANAGEMENT, LLC — $2.19B
Recent CMCSA insider trades
- Mar 5, 2026: Armstrong Jason sold 4,494 shares ($143K)
- Feb 11, 2026: Cavanagh Michael J sold 57,947 shares ($1.89M)
- Feb 3, 2026: Nakahara Asuka sold 8,275 shares ($246K)
- Nov 27, 2024: Roberts Brian L sold 469,515 shares ($20.1M)
Members of Congress trading CMCSA
- Aug 5, 2026: Kevin Hern sold $1.00K–$15.0K
- Jul 17, 2026: Gilbert Ray Cisneros, Jr. sold $1.00K–$15.0K
- Jun 16, 2026: Gilbert Ray Cisneros, Jr. bought $1.00K–$15.0K
- May 7, 2026: Mike Kelly sold $1.00K–$15.0K
- Apr 14, 2026: Gilbert Ray Cisneros, Jr. sold part of $15.0K–$50.0K
- Mar 17, 2026: Kevin Hern sold $15.0K–$50.0K
- Jan 9, 2026: Gilbert Ray Cisneros, Jr. bought $1.00K–$15.0K
- Dec 18, 2025: Julie Johnson sold $1.00K–$15.0K
- Nov 18, 2025: Gilbert Ray Cisneros, Jr. sold part of $1.00K–$15.0K
- Nov 13, 2025: Julie Johnson sold part of $1.00K–$15.0K
5%+ owners
- Vanguard Capital Management: 7.5% (Schedule 13G, filed Apr 29, 2026)