HOLOGIC INC (HOLX) Institutional Ownership Changes & 13F Activity

HOLOGIC INC (HOLX). 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 Sequoia Financial Advisors, Hancock Classic Value, Renaissance Technologies LLC, Jensen Investment Management, and Sound Shore Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2019Kahn Brothers GroupSell-209,704340,444$16,477,490
Q1 2019Parnassus Endeavor FundBuy100,83315,640,395$756,995
Q1 2019Olstein Capital ManagementSell-7,00061,000$2,952
Q4 2018Parnassus Endeavor FundSell-796,76515,539,562$638,676
Q4 2018Renaissance Technologies LLCBuy212,800460,218$18,915
Q4 2018Olstein Capital ManagementSell-53,90068,000$2,795
Q4 2018Kahn Brothers GroupSell-27,937550,148$22,611,083
Q3 2018Parnassus Endeavor FundBuy94,99316,336,327$669,462
Q3 2018Kahn Brothers GroupSell-32,942578,085$23,689,924
Q3 2018Olstein Capital ManagementSell-6,100121,900$4,995
Q2 2018Parnassus Endeavor FundBuy535,74516,241,334$645,593
Q2 2018Kahn Brothers GroupSell-46,970611,027$24,288,323
Q2 2018Olstein Capital ManagementSell-39,700128,000$5,088
Q1 2018Parnassus Endeavor FundBuy1,464,71415,705,589$586,761
Q1 2018Renaissance Technologies LLCSell-254,420247,418$9,244
Q1 2018Kahn Brothers GroupSell-33,670657,997$24,582,768
Q1 2018Olstein Capital ManagementBuy20,000167,700$6,265
Q4 2017Parnassus Endeavor FundBuy6,689,45414,240,875$608,797
Q4 2017Kahn Brothers GroupSell-40,149691,667$29,568,765
Q4 2017Olstein Capital ManagementBuy28,000147,700$6,314
Q3 2017Parnassus Endeavor FundBuy7,551,4217,551,421$277,062
Q3 2017Renaissance Technologies LLCSell-725,280501,838$18,412
Q3 2017Kahn Brothers GroupSell-67,649731,816$26,850,329
Q3 2017Olstein Capital ManagementBuy28,200119,700$4,392
Q2 2017Renaissance Technologies LLCSell-229,2001,227,118$55,687
Q2 2017Kahn Brothers GroupSell-118,934799,465$36,279,721
Q2 2017Olstein Capital ManagementSell-75,50091,500$4,152
Q1 2017Kahn Brothers GroupSell-279,005918,399$39,077,877
Q1 2017Olstein Capital ManagementSell-17,000167,000$7,106
Q1 2017Renaissance Technologies LLCSell-7,3001,456,318$61,966

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.

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