BIO-RAD LABORATORIES-A (BIO) Institutional Ownership Changes & 13F Activity

BIO-RAD LABORATORIES-A (BIO). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Goldman Sachs Group Inc, Nomura Holdings Inc, Aqr Capital Management Llc, Citadel Advisors Llc, and Assenagon Asset Management S.A..

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Cim Investment Management IncSell-137-9.2%1,360$399.31KQ2 2026Sep 29, 2026
Op Asset Management LtdSell-6,552-100.0%0$0.00Q2 2026Sep 28, 2026
Envestnet Portfolio Solutions, Inc.Buy+841+46.0%2,670$783.94KQ2 2026Sep 23, 2026
Envestnet Asset Management IncBuy+116+0.1%105,449$30.96MQ2 2026Sep 23, 2026
State Street CorpBuy+12,192+2.2%571,762$167.88MQ2 2026Sep 22, 2026
Manufacturers Life Insurance Company, TheBuy+1,860+1.9%101,580$29.82MQ2 2026Sep 09, 2026
Citadel Advisors LlcSell-87,850-59.1%60,819$17.86MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhSell-22,461-20.4%87,780$25.77MQ2 2026Sep 02, 2026
Corient Private Wealth LlcSell-38-2.7%1,387$407.18KQ2 2026Aug 27, 2026
First Eagle U.S. ValueBuy+3,447+0.1%2,606,219$765.21MQ2 2026Aug 24, 2026
California State Teachers Retirement SystemSell-1,166-5.3%20,766$6.10MQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Buy+85,393+57.8%233,227$68.48MQ2 2026Aug 21, 2026
Rehmann Capital Advisory GroupBuy+73+8.3%954$280.10KQ2 2026Aug 20, 2026
Mercer Global Advisors IncBuy+720—720$211.40KQ2 2026Aug 19, 2026
Fulcrum Asset Management LlpBuy+924—924$272.86KQ2 2026Aug 18, 2026
Empowered Funds, LlcBuy+2,212+102.0%4,380$1.29MQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioSell-210-3.7%5,488$1.61MQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+2+66.7%5$1.47KQ2 2026Aug 17, 2026
Goldman Sachs Group IncBuy+128,185+241.7%181,225$53.21MQ2 2026Aug 14, 2026
Nomura Holdings IncBuy+111,555+51.3%328,897$96.57MQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+98,161+103.8%192,710$56.05MQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+76,831+371.7%97,500$28.63MQ2 2026Aug 14, 2026
Hound Partners, LlcSell-75,243-77.0%22,481$6.60MQ2 2026Aug 14, 2026
Man Group PlcSell-65,999-97.9%1,437$421.92KQ2 2026Aug 14, 2026
Wellington Management Group LlpBuy+60,249—60,249$17.69MQ2 2026Aug 14, 2026
Millennium Management LlcBuy+56,601+1718.3%59,895$17.59MQ2 2026Aug 14, 2026
Price T Rowe Associates IncSell-54,994-74.0%19,287$5.66MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+45,455+10.2%490,412$143.99MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+36,283—36,283$10.65MQ2 2026Aug 14, 2026
Ariel Appreciation FundBuy+30,790+3.9%816,751$239.81MQ2 2026Aug 14, 2026
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Frequently asked questions about BIO activity

  • Which institutional owners are buying BIO?

    Institutional owners buying BIO 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 BIO activity?

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

  • Is institutional interest in BIO increasing?

    Institutional interest in BIO 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.