IRIDEX CORP (IRIX) Institutional Ownership Changes & 13F Activity

IRIDEX CORP (IRIX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCBuy25,067396,627$400,593
Q4 2025Renaissance Technologies LLCSell-17,500371,560$423,578
Q3 2025Renaissance Technologies LLCBuy10,300389,060$443,723
Q2 2025Renaissance Technologies LLCSell-400378,760$334,029
Q1 2025Renaissance Technologies LLCSell-2,000379,160$375,368
Q4 2024Renaissance Technologies LLCSell-16,200381,160$640,349
Q3 2024Renaissance Technologies LLCSell-7,600397,360$695,380
Q2 2024Renaissance Technologies LLCSell-5,200404,960$874,714
Q1 2024Renaissance Technologies LLCSell-4,900410,160$1,222
Q4 2023Renaissance Technologies LLCBuy2,000415,060$1,166
Q3 2023Renaissance Technologies LLCSell-6,100413,060$1,049
Q2 2023Renaissance Technologies LLCSell-3,900419,160$910
Q1 2023Renaissance Technologies LLCSell-7,300423,060$859
Q4 2022Renaissance Technologies LLCSell-22,700430,360$865
Q3 2022Renaissance Technologies LLCSell-70,300453,060$1,092
Q2 2022Renaissance Technologies LLCSell-23,452523,360$1,345
Q1 2022Renaissance Technologies LLCSell-16,348546,812$2,532
Q4 2021Renaissance Technologies LLCSell-94,097563,160$3,441
Q3 2021Renaissance Technologies LLCSell-303657,257$5,035
Q2 2021Renaissance Technologies LLCBuy15,600657,560$4,642
Q1 2021Renaissance Technologies LLCSell-24,459641,960$4,333
Q4 2020Renaissance Technologies LLCBuy146,178666,419$1,673
Q3 2020Renaissance Technologies LLCBuy14,322520,241$1,020
Q2 2020Renaissance Technologies LLCBuy17,600505,919$1,073
Q1 2020Renaissance Technologies LLCBuy15,666488,319$774
Q4 2019Renaissance Technologies LLCBuy33,101472,653$1,054
Q3 2019Renaissance Technologies LLCBuy53,690439,552$813
Q2 2019Renaissance Technologies LLCBuy10,808385,862$1,756
Q1 2019Renaissance Technologies LLCBuy11,254375,054$1,710
Q4 2018Renaissance Technologies LLCBuy28,300363,800$1,710

Frequently asked questions about IRIX activity

  • Which institutional owners are buying IRIX?

    Institutional owners buying IRIX 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 IRIX activity?

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

  • Is institutional interest in IRIX increasing?

    Institutional interest in IRIX 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.

Related IRIX Institutional Insights