OSI SYSTEMS INC (OSIS) Stock Institutional Trading Activity


OSI SYSTEMS INC (OSIS) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q1 2026), investors with some of the largest reported share count changes include Sequoia Financial Advisors, First Eagle U.S. Value, Renaissance Technologies LLC, and Engaged Capital. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Sequoia Financial AdvisorsBuy671,276$338,791
Q3 2025Sequoia Financial AdvisorsBuy11,209$301,332
Q3 2025First Eagle U.S. ValueBuy7,66430,864$7,692,543
Q2 2025Sequoia Financial AdvisorsBuy41,208$271,631
Q2 2025First Eagle U.S. ValueSell-6,90023,200$5,216,752
Q1 2025Sequoia Financial AdvisorsBuy1,2041,204$233,986
Q1 2025First Eagle U.S. ValueSell-5,80030,100$5,849,634
Q4 2024First Eagle U.S. ValueBuy35,90035,900$6,010,737
Q3 2024Renaissance Technologies LLCSell-18,4007,283$1,105,778
Q2 2024Renaissance Technologies LLCBuy11,40025,683$3,531,926
Q1 2024Renaissance Technologies LLCBuy8,00014,283$2,040
Q3 2023Renaissance Technologies LLCSell-42,1006,283$742
Q2 2023Renaissance Technologies LLCBuy35,28348,383$5,701
Q1 2023Renaissance Technologies LLCSell-9,50013,100$1,341
Q4 2022Renaissance Technologies LLCSell-34,78322,600$1,797
Q3 2022Renaissance Technologies LLCBuy26,78357,383$4,135
Q2 2022Renaissance Technologies LLCSell-3,40030,600$2,614
Q1 2022Renaissance Technologies LLCSell-16,90034,000$2,894
Q4 2021Renaissance Technologies LLCSell-50,78350,900$4,744
Q3 2021Renaissance Technologies LLCSell-10,206101,683$9,640
Q2 2021Renaissance Technologies LLCSell-519111,889$11,372
Q1 2021Renaissance Technologies LLCSell-36,300112,408$10,802
Q4 2020Renaissance Technologies LLCSell-15,000148,708$13,863
Q3 2020Renaissance Technologies LLCBuy65,600163,708$12,705
Q2 2020Renaissance Technologies LLCBuy88,40898,108$7,323
Q1 2020Renaissance Technologies LLCSell-45,0719,700$669
Q4 2019Renaissance Technologies LLCSell-241,43754,771$5,518
Q3 2019Renaissance Technologies LLCBuy214,900296,208$30,083
Q2 2019Renaissance Technologies LLCBuy64,60081,308$9,158
Q1 2019Renaissance Technologies LLCBuy5,70016,708$1,464

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.