HOLOGIC INC (HOLX) Stock Institutional Trading Activity


HOLOGIC INC (HOLX) 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, Hancock Classic Value, Renaissance Technologies LLC, Jensen Investment Management, and Sound Shore Management. 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
Q3 2024Hancock Classic ValueBuy3,0303,030$246,824
Q3 2024Sequoia Financial AdvisorsBuy1737,388$601,827
Q3 2024Parnassus Endeavor FundSell-105,0801,168,749$95,206,294
Q3 2024Renaissance Technologies LLCBuy274,4062,818,190$229,569,757
Q2 2024Kahn Brothers GroupSell-90025,591$1,900,332
Q2 2024Sound Shore ManagementBuy57,5881,166,115$86,584,039
Q2 2024Sequoia Financial AdvisorsBuy1657,215$535,715
Q2 2024Parnassus Endeavor FundSell-150,3321,273,829$94,581,803
Q2 2024Renaissance Technologies LLCSell-280,7002,543,784$188,875,962
Q1 2024Kahn Brothers GroupSell-2,00026,491$2,064,995
Q1 2024Sound Shore ManagementBuy109,7051,108,527$86,420,765
Q1 2024Renaissance Technologies LLCSell-1,191,4182,824,484$220,197
Q1 2024Sequoia Financial AdvisorsBuy4527,050$549,618
Q1 2024Parnassus Endeavor FundSell-1,471,2581,424,161$111,027,592
Q4 2023Sound Shore ManagementBuy72,657998,822$71,365,832
Q4 2023Olstein Capital ManagementBuy2,00092,000$6,573
Q4 2023Renaissance Technologies LLCBuy406,7254,015,902$286,936
Q4 2023Sequoia Financial AdvisorsBuy1,1916,598$471,428
Q4 2023Parnassus Endeavor FundSell-344,5642,895,419$206,877,688
Q3 2023Kahn Brothers GroupSell-1,54428,491$1,977,000
Q3 2023Sound Shore ManagementBuy279,918926,165$64,275,851
Q3 2023Olstein Capital ManagementBuy37,00090,000$6,246
Q3 2023Renaissance Technologies LLCBuy700,6003,609,177$250,477
Q3 2023Sequoia Financial AdvisorsSell-195,407$375,246
Q3 2023Parnassus Endeavor FundSell-546,4443,239,983$224,854,820
Q2 2023Sound Shore ManagementSell-18,426646,247$52,326,619
Q2 2023Olstein Capital ManagementSell-3,00053,000$4,291
Q2 2023Renaissance Technologies LLCBuy331,5072,908,577$235,507
Q2 2023Sequoia Financial AdvisorsBuy1865,426$439,344
Q1 2023Kahn Brothers GroupSell-35030,035$2,424,000

Frequently asked questions about HOLX activity

  • Which institutional owners are buying HOLX?

    Institutional owners buying HOLX 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 HOLX activity?

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

  • Is institutional interest in HOLX increasing?

    Institutional interest in HOLX 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.