OSI SYSTEMS INC (OSIS) Institutional Ownership Changes & 13F Activity

OSI SYSTEMS INC (OSIS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Fmr Llc, Driehaus Capital Management Llc, Brown Advisory Inc, Mirae Asset Global Etfs Holdings Ltd., and Wellington Management Group Llp.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Neuberger Berman Group LlcBuy+3,131+1.0%303,923$80.68MQ1 2026Oct 27, 2026
M&T Bank CorpSell-26,954-94.4%1,609$427.20KQ1 2026Sep 04, 2026
Wells Fargo & Company/MnSell-1,154-2.2%50,772$13.48MQ1 2026Jul 08, 2026
Western Wealth Management, LlcBuy+2—2$531.00Q1 2026May 19, 2026
Bank Of America CorpSell-19,878-6.9%266,375$70.73MQ1 2026May 18, 2026
Intrinsic Edge Capital Management LlcSell-5,000-16.0%26,158$6.95MQ1 2026May 18, 2026
California State Teachers Retirement SystemBuy+3,663+24.4%18,670$4.96MQ1 2026May 18, 2026
AmundiBuy+532+19.6%3,241$860.52KQ1 2026May 18, 2026
Fmr LlcBuy+309,658+18.7%1,967,088$522.28MQ1 2026May 15, 2026
Driehaus Capital Management LlcSell-117,805-50.0%117,963$31.32MQ1 2026May 15, 2026
Brown Advisory IncSell-73,351-48.4%78,254$20.78MQ1 2026May 15, 2026
Mirae Asset Global Etfs Holdings Ltd.Buy+69,393+42.5%232,497$61.60MQ1 2026May 15, 2026
Wellington Management Group LlpBuy+43,893+88.0%93,754$24.89MQ1 2026May 15, 2026
Van Eck Associates CorpSell-38,915-17.1%188,180$49.96MQ1 2026May 15, 2026
Goldman Sachs Group IncSell-33,257-30.7%75,120$19.95MQ1 2026May 15, 2026
Geode Capital Management, LlcBuy+29,760+7.2%440,723$117.03MQ1 2026May 15, 2026
Nomura Asset Management International Inc.Sell-27,478-14.5%161,492$42.88MQ1 2026May 15, 2026
Advisors Asset Management, Inc.Buy+23,879—23,879$6.34MQ1 2026May 15, 2026
Janus Henderson Group PlcBuy+19,747+2.6%772,314$205.06MQ1 2026May 15, 2026
Nicholas Investment Partners, LpSell-17,066-35.1%31,553$8.38MQ1 2026May 15, 2026
Barclays PlcSell-16,781-53.5%14,579$3.87MQ1 2026May 15, 2026
Citadel Advisors LlcBuy+13,715+1112.3%14,948$3.97MQ1 2026May 15, 2026
Morgan StanleySell-12,527-5.6%210,377$55.86MQ1 2026May 15, 2026
Waverly Advisors, LlcBuy+11,413+1283.8%12,302$3.27MQ1 2026May 15, 2026
American Century Companies IncBuy+10,664+26.4%50,994$13.54MQ1 2026May 15, 2026
Marshall Wace, LlpBuy+10,183—10,183$2.70MQ1 2026May 15, 2026
Empowered Funds, LlcBuy+7,922—7,922$2.10MQ1 2026May 15, 2026
Hood River Capital Management LlcSell-7,300-1.9%372,074$98.79MQ1 2026May 15, 2026
Susquehanna International Group, LlpBuy+6,826—6,826$1.81MQ1 2026May 15, 2026
Gotham Asset Management, LlcSell-6,114-69.8%2,645$702.27KQ1 2026May 15, 2026
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Frequently asked questions about OSIS activity

  • Which institutional owners are buying OSIS?

    Institutional owners buying OSIS 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 OSIS activity?

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

  • Is institutional interest in OSIS increasing?

    Institutional interest in OSIS 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.