SHOULDER INNOVATIONS INC (SI) Institutional Ownership Changes & 13F Activity

SHOULDER INNOVATIONS INC (SI). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Driehaus Capital Management Llc, Parkman Healthcare Partners Llc, Fmr Llc, Jane Street Group, Llc, and Schonfeld Strategic Advisors Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcBuy+23,271+172.1%36,795$746.20KQ2 2026Sep 02, 2026
California State Teachers Retirement SystemSell-429-74.7%145$2.94KQ2 2026Aug 24, 2026
Driehaus Capital Management LlcBuy+253,760253,760$5.15MQ2 2026Aug 14, 2026
Parkman Healthcare Partners LlcBuy+226,212226,212$4.59MQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+86,30786,307$1.75MQ2 2026Aug 14, 2026
Schonfeld Strategic Advisors LlcBuy+77,73777,737$1.58MQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+44,15944,159$895.54KQ2 2026Aug 14, 2026
Royal Bank Of CanadaSell-37,982-70.5%15,901$322.00KQ2 2026Aug 14, 2026
Sei Investments CoBuy+34,35034,350$696.62KQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+22,92022,920$464.82KQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+19,77519,775$401.04KQ2 2026Aug 14, 2026
Bank Of America CorpBuy+6,946+25.7%33,929$688.08KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+5,017+130.9%8,849$179.46KQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncBuy+2,630+11.5%25,582$518.80KQ2 2026Aug 14, 2026
Barclays PlcSell-415-19.0%1,770$35.90KQ2 2026Aug 14, 2026
Legal & General Group PlcBuy+231+26.3%1,111$22.53KQ2 2026Aug 14, 2026
Metlife Investment Management, LlcSell-94-1.5%6,130$124.32KQ2 2026Aug 14, 2026
Mirae Asset Global Etfs Holdings Ltd.Sell-26-0.5%4,842$98.20KQ2 2026Aug 14, 2026
Fmr LlcSell-110,592-2.9%3,673,960$74.51MQ2 2026Aug 13, 2026
Informed Momentum Co LlcBuy+57,99857,998$1.18MQ2 2026Aug 13, 2026
Cm Management, LlcBuy+45,000+45.0%145,000$2.94MQ2 2026Aug 13, 2026
Morgan StanleySell-40,313-25.6%117,265$2.38MQ2 2026Aug 13, 2026
Marshall Wace, LlpBuy+38,66738,667$784.17KQ2 2026Aug 13, 2026
Vanguard Capital Management LlcSell-21,299-5.2%392,181$7.95MQ2 2026Aug 13, 2026
Jump Financial, LlcBuy+13,52013,520$274.19KQ2 2026Aug 13, 2026
Vanguard Portfolio Management LlcBuy+9,338+15.3%70,335$1.43MQ2 2026Aug 13, 2026
Bnp Paribas Financial MarketsBuy+7,976+354.8%10,224$207.34KQ2 2026Aug 13, 2026
Northern Trust CorpBuy+7,224+11.3%71,291$1.45MQ2 2026Aug 13, 2026
Ubs Group AgBuy+6,174+122.5%11,212$227.38KQ2 2026Aug 13, 2026
Los Angeles Capital Management LlcBuy+5,8475,847$118.58KQ2 2026Aug 13, 2026
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Frequently asked questions about SI activity

  • Which institutional owners are buying SI?

    Institutional owners buying SI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in SI activity?

    "Buy" means an investor increased their reported position in SI compared to the prior reporting period. This reflects growing exposure to SHOULDER INNOVATIONS INC (SI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in SI increasing?

    Institutional interest in SI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.