SI SHOULDER INNOVATIONS, INC.: institutional ownership and insider trading
76 funds reported holding $172M of SHOULDER INNOVATIONS, INC. in their latest 13F filings; in Q2 2026 funds net bought $13.2M, with 22 new positions and 9 funds selling out; over the last 12 months insiders bought $215K and sold $5.47M on the open market.
Famous investors holding SI
- Ken Griffin (Citadel Advisors): $746K, 0.0% of the portfolio
Largest institutional holders of SI
- FMR LLC — $74.5M
- BlackRock, Inc. (BLK) — $12.9M
- SECTORAL ASSET MANAGEMENT INC — $8.73M
- VANGUARD CAPITAL MANAGEMENT LLC — $7.95M
- KCM Capital Inc — $6.08M
- TimesSquare Capital Management, LLC — $6.05M
- Roubaix Capital, LLC — $5.18M
- DRIEHAUS CAPITAL MANAGEMENT LLC — $5.15M
- Parkman Healthcare Partners LLC — $4.59M
- GEODE CAPITAL MANAGEMENT, LLC — $4.05M
Recent SI insider trades
- Sep 14, 2026: Ball Robert Joseph sold 10,175 shares ($188K)
- Aug 26, 2026: Gilde Healthcare Holding B.V. sold 1,196 shares ($27.0K)
- Aug 24, 2026: Gilde Healthcare Holding B.V. sold 25,097 shares ($567K)
- Aug 18, 2026: Ahearn Matthew Fraser sold 22,500 shares ($465K)
5%+ owners
- FMR LLC: 17.7% (Schedule 13G/A, filed Aug 6, 2026)
- Gilde Healthcare Holding B.V.: 10.7% (Schedule 13D/A, filed Aug 7, 2026)