SIRI SIRIUS XM HOLDINGS INC.: institutional ownership and insider trading
646 funds reported holding $9.38B of SIRIUS XM HOLDINGS INC. in their latest 13F filings; in Q2 2026 funds net bought $830M, with 104 new positions and 60 funds selling out; over the last 12 months insiders bought $0 and sold $1.28M on the open market.
Famous investors holding SIRI
- Warren Buffett (Berkshire Hathaway): $3.69B, 1.2% of the portfolio
- Tweedy, Browne (Tweedy, Browne Company): $1.96M, 0.2% of the portfolio
- Ken Griffin (Citadel Advisors): $157M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $24.9M, 0.0% of the portfolio
- Ray Dalio (Bridgewater Associates): $4.38M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $3.36M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $1.08M, 0.0% of the portfolio
Largest institutional holders of SIRI
- BERKSHIRE HATHAWAY INC (BRK-A, BRK-B) — $3.69B
- BlackRock, Inc. (BLK) — $520M
- VANGUARD GROUP INC — $366M
- DIMENSIONAL FUND ADVISORS LP — $311M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $268M
- VANGUARD CAPITAL MANAGEMENT LLC — $248M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP — $204M
- Kontiki Capital Management (HK) Ltd. — $180M
- STATE STREET CORP (STT, STT-PG) — $177M
- CITADEL ADVISORS LLC — $157M
Recent SIRI insider trades
- Aug 6, 2026: Procope Jonelle sold 16,672 shares ($500K)
- May 29, 2026: Salen Kristina sold 4,097 shares ($121K)
- May 27, 2026: Greenstein Scott Andrew sold 20,744 shares ($619K)
- Nov 3, 2025: Salen Kristina sold 1,845 shares ($39.9K)
Members of Congress trading SIRI
- Jan 13, 2026: August Pfluger sold $1.00K–$15.0K
- Jul 1, 2025: August Pfluger sold $1.00K–$15.0K
- Sep 10, 2024: August Pfluger exchanged $1.00K–$15.0K
- Sep 10, 2024: August Pfluger exchanged $1.00K–$15.0K
- Sep 10, 2024: Thomas H. Kean, Jr. exchanged $1.00K–$15.0K
5%+ owners
- John C. Malone: 5.5% (Schedule 13D/A, filed Jun 10, 2026)