undamentalytics Newsletter

Bio-rad Laboratories, Inc.: which funds bought and sold

Institutions that bought and sold Bio-rad Laboratories shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 168 institutions that filed 13F reports for both quarters added to or opened positions in Bio-rad Laboratories, and 204 cut or closed them. Together they added a net 2.2M shares, +10.8% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.8M shares (+22.5%); index fund managers were net sellers of 5,016 shares (−0.1%). 54 opened a new position and 50 sold out entirely.

Bought, Q2 2026 168 institutions, 54 of them new holders Sold, Q2 2026 204 institutions, 50 of them sold out
Net change, all compared +2.2M shares (+10.8%)
Net change, active managers +1.8M shares (+22.5%), 28 bought, 24 sold

Buyers versus sellers

institutions compared, 441
Active managers and hedge funds 28 bought · 24 sold · +1.8M
Index fund managers 3 bought · 8 sold · −5,016
Other institutions 137 bought · 172 sold · +320K

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
First Eagle Investment Management, LLC Active manager +2.6M +100.3% 5.2M $1.5B
Assenagon Asset Management S.A. +319K +215.5% 466K $137M
Goldman Sachs Group Inc +128K +241.7% 181K $53.2M
Nomura Holdings Inc +112K +51.3% 329K $96.6M
Neuberger Berman Group LLC Active manager +109K +3591.4% 112K $32.8M
SG Americas Securities, LLC +104K +155.0% 171K $50.1M
Victory Capital Management Inc Active manager +103K +555.2% 122K $35.9M
AQR Capital Management LLC Hedge fund +98K +103.8% 193K $56M
First Trust Advisors LP +93K +6089.8% 94K $27.7M
Wells Fargo & Company +77K +371.7% 98K $28.6M
Wellington Management Group LLP Active manager +60K New position 60K $17.7M
Capital Research Global Investors Active manager +58K +15.0% 443K $130M
Millennium Management LLC Hedge fund +57K +1718.3% 60K $17.6M
Bank Of America Corp +45K +10.2% 490K $144M
Bank Of Nova Scotia +40K New position 40K $11.7M
Ariel Investments, LLC Active manager +31K +3.9% 817K $240M
Portolan Capital Management, LLC +28K +200.7% 43K $12.5M
Palliser Capital (UK) Ltd +28K New position 28K $8.2M
Hosking Partners LLP Active manager +25K +36.8% 94K $27.7M
Concentric Capital Strategies, LP +24K New position 24K $7M

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Massachusetts Financial Services Co Active manager −388K −98.0% 7,850 $2.3M
Parnassus Investments, LLC Active manager −254K Sold out 0 —
Southeastern Asset Management Inc Active manager −163K Sold out 0 —
Dimensional Fund Advisors LP −145K −13.3% 945K $277M
CIBC Bancorp Usa Inc. −120K Sold out 0 —
Mawer Investment Management Ltd. Active manager −117K −62.1% 72K $21M
Federated Hermes, Inc. Active manager −106K −96.1% 4,258 $1.3M
Citadel Advisors LLC Hedge fund −88K −59.1% 61K $17.9M
Morgan Stanley −84K −30.5% 190K $55.9M
Acadian Asset Management LLC Active manager −81K −79.2% 21K $6.3M
Hound Partners, LLC −75K −77.0% 22K $6.6M
Man Group PLC Hedge fund −66K −97.9% 1,437 $421,918
Price T Rowe Associates Inc Active manager −55K −74.0% 19K $5.7M
Select Equity Group, L.P. Active manager −48K Sold out 0 —
Thompson Siegel & Walmsley LLC −47K −26.4% 130K $38.1M
HRT Financial LP −47K Sold out 0 —
UBS Group AG −46K −13.0% 308K $90.5M
Almitas Capital LLC −30K Sold out 0 —
Tikvah Management LLC −29K −29.9% 69K $20.1M
National Bank Of Canada −25K −27.8% 65K $19.1M

New positions

largest by value
InstitutionSharesValue June 30, 2026
Wellington Management Group LLPActive manager 60K $17.7M
Bank Of Nova Scotia 40K $11.7M
Palliser Capital (UK) Ltd 28K $8.2M
Concentric Capital Strategies, LP 24K $7M
Ayal Capital Advisors Ltd 16K $4.8M
Longaeva Partners L.P. 15K $4.3M
Mirae Asset Global Etfs Holdings Ltd. 14K $4.1M
Campbell & Co Investment Adviser LLC 14K $4.1M
Pfm Health Sciences, LPHedge fund 14K $4.1M
Caxton Associates LLPHedge fund 14K $4.1M

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Parnassus Investments, LLCActive manager 254K $70.9M
Southeastern Asset Management IncActive manager 163K $45.4M
CIBC Bancorp Usa Inc. 120K $33.5M
Select Equity Group, L.P.Active manager 48K $13.5M
HRT Financial LP 47K $13M
Almitas Capital LLC 30K $8.4M
Van Eck Associates Corp 19K $5.4M
Lazard Asset Management LLCActive manager 18K $5.1M
TD Asset Management Inc 9,780 $2.7M
Oak Thistle LLC 9,320 $2.6M

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
397
Ten largest holders
55.9%
of 13F-reported shares
Index fund managers
21.7%
of 13F-reported shares
Active managers and hedge funds
45.0%
of 13F-reported shares
Buying and selling by type of institution, March 31, 2026 to June 30, 2026
TypeBoughtSoldNewSold outNet change in sharesNet %
Active managers and hedge funds 28 24 8 7 +1.8M +22.5%
Index fund managers 3 8 0 0 −5,016 −0.1%
Other institutions 137 172 46 43 +320K +4.6%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

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