Bio-Rad Laboratories-ABIO
13F holders, Q2 2026 (June 30)399holders +4
54new positions
51sold out
9famous investors
$293.61avg. 13F price*
At the end of Q2 2026, 399 institutions reported holding Bio-Rad Laboratories-A (BIO) in their 13F filings, up 4 from Q1 2026. 54 opened new positions and 51 sold out. The largest holders were First Eagle Investment Management, LLC ($765.2M), BlackRock, Inc. ($498.8M) and Dimensional Fund Advisors LP ($277.3M). 9 famous investors held it, including John W. Rogers Jr. (2.4% of Ariel Investments's portfolio), Joel Greenblatt (0.1% of Gotham Asset Management's portfolio) and Mario Gabelli (0.1% of GAMCO Investors's portfolio).
- Company
- Bio-Rad Laboratories-A
- CUSIP
- 090572207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 54 | $89.9M |
| Exits | 51 | $216.2M |
All 13F filers, Q1 2026 → Q2 2026: 1,736,061 shares bought and 2,425,802 shares sold, net −689,741 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 399 holders
| First Eagle Investment Management, LLC | 1.26% | Add +0.1% | 2,606,219 | $765.2M |
| BlackRock, Inc. | 0.01% | Add +1.1% | 1,698,929 | $498.8M |
| Dimensional Fund Advisors LP | 0.05% | Reduce -13.3% | 944,548 | $277.3M |
| Vanguard Capital Management LLC | 0.01% | Reduce -0.5% | 826,972 | $242.8M |
| Ariel Investments | 2.39% | Add +3.9% | 816,751 | $239.8M |
| Vanguard Portfolio Management LLC | 0.01% | Reduce -1.6% | 816,198 | $239.6M |
| Earnest Partners LLC | 0.61% | Reduce -1.4% | 580,752 | $170.5M |
| State Street Corp. | 0.01% | Add +2.2% | 571,762 | $167.9M |
| Bank of America Corp. | 0.01% | Add +10.2% | 490,412 | $144.0M |
| Capital World Investors | 0.02% | Add +2.8% | 462,457 | $135.8M |
| Capital Research Global Investors | 0.02% | Add +15.0% | 443,483 | $130.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Reduce -1.7% | 418,884 | $123.0M |
| First Pacific Advisors, LP | 1.48% | Reduce -1.4% | 401,861 | $118.0M |
| Geode Capital Management, LLC | 0.01% | Reduce -4.7% | 347,575 | $102.1M |
| Nomura Holdings Inc. | 0.41% | Add +51.3% | 328,897 | $96.6M |
| UBS Group AG | 0.01% | Reduce -13.0% | 308,325 | $90.5M |
| Sei Investments Co. | 0.07% | Reduce -5.0% | 273,377 | $80.3M |
| Barclays PLC | 0.02% | Reduce -4.0% | 267,634 | $78.6M |
| Assenagon Asset Management S.A. | 0.09% | Add +57.8% | 233,227 | $68.5M |
| Deerfield Management Company, L.P. | 0.83% | No change | 226,070 | $66.4M |
| Northern Trust Corp. | 0.01% | Reduce -0.1% | 218,285 | $64.1M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -0.5% | 195,538 | $57.4M |
| Franklin Resources Inc. | 0.01% | Add +13.7% | 193,682 | $56.9M |
| AQR Capital Management | 0.02% | Add +103.8% | 192,711 | $56.0M |
| Morgan Stanley | 0.00% | Reduce -30.5% | 190,285 | $55.9M |
| Goldman Sachs Group Inc. | 0.01% | Add +241.7% | 181,225 | $53.2M |
| SG Americas Securities, LLC | 0.03% | Add +155.0% | 170,802 | $50.1M |
| GW&K Investment Management, LLC | 0.38% | Reduce -4.5% | 166,905 | $49.0M |
| Gotham Asset Management | 0.11% | Add +9.1% | 166,262 | $48.8M |
| Freestone Grove Partners LP | 0.27% | Reduce -5.1% | 140,113 | $41.1M |
| Thompson Siegel & Walmsley LLC | 0.69% | Reduce -26.4% | 129,881 | $38.1M |
| Mangrove Partners Im, LLC | 2.46% | Add +0.3% | 127,191 | $37.3M |
| Victory Capital Management Inc. | 0.02% | Add +555.2% | 122,126 | $35.9M |
| Fisher Asset Management | 0.01% | Reduce -1.5% | 116,909 | $34.3M |
| Vanguard Fiduciary Trust Co. | 0.01% | Add +0.7% | 114,403 | $33.6M |
| Bank of New York Mellon Corp | 0.01% | Reduce -10.3% | 113,854 | $33.4M |
| ING Groep NV | 0.16% | Add +25.2% | 112,700 | $33.1M |
| Neuberger Berman Group LLC | 0.02% | Add +3591.4% | 111,812 | $32.8M |
| Norges Bank | 0.00% | — | 111,580 | $32.8M |
| Boston Trust Walden Corp | 0.25% | Add +18.9% | 111,167 | $32.6M |
| Envestnet Asset Management Inc. | 0.01% | Add +0.1% | 105,449 | $31.0M |
| JPMorgan Chase & Co. | 0.00% | Add +3.2% | 102,605 | $30.5M |
| Manufacturers Life Insurance Company, The | 0.02% | Add +1.9% | 101,580 | $29.8M |
| Wells Fargo & Company | 0.01% | Add +371.7% | 97,500 | $28.6M |
| Hosking Partners LLP | 0.92% | Add +36.8% | 94,430 | $27.7M |
| First Trust Advisors LP | 0.02% | Add +6089.8% | 94,209 | $27.7M |
| JNE Partners LLP | 10.69% | Reduce -3.9% | 88,511 | $26.0M |
| Allianz Asset Management GmbH | 0.02% | Reduce -20.4% | 87,780 | $25.8M |
| Natixis Advisors, LLC | 0.03% | Add +9.8% | 82,389 | $24.2M |
| Jones Financial Companies LLLP | 0.01% | Add +9.6% | 78,878 | $23.7M |
| Exchange Traded Concepts, LLC | 0.10% | Add +23.2% | 72,116 | $21.2M |
| Mawer Investment Management Ltd. | 0.14% | Reduce -62.1% | 71,577 | $21.0M |
| Allspring Global Investments Holdings, LLC | 0.03% | Reduce -19.0% | 69,598 | $20.7M |
| Tikvah Management LLC | 6.12% | Reduce -29.9% | 68,604 | $20.1M |
| QVIDTVM Management LLC | 25.39% | Reduce -20.9% | 66,243 | $19.4M |
| National Bank of Canada | 0.02% | Reduce -27.8% | 65,000 | $19.1M |
| Citadel Advisors | 0.01% | Reduce -59.1% | 60,819 | $17.9M |
| Wellington Management Group LLP | 0.00% | New | 60,249 | $17.7M |
| Millennium Management | 0.01% | Add +1718.3% | 59,895 | $17.6M |
| Arnhold LLC | 1.14% | Add +29.5% | 55,568 | $16.3M |
| Rhumbline Advisers | 0.01% | Reduce -1.9% | 45,140 | $13.3M |
| Assetmark, Inc. | 0.02% | Add +13.6% | 44,277 | $13.0M |
| Portolan Capital Management, LLC | 0.47% | Add +200.7% | 42,620 | $12.5M |
| Marathon Asset Management Ltd | 0.50% | Reduce -21.8% | 41,975 | $12.3M |
| Principal Financial Group Inc. | 0.01% | Add +0.7% | 40,905 | $12.0M |
| Bank of Nova Scotia | 0.02% | New | 39,708 | $11.7M |
| Raymond James Financial Inc. | 0.00% | Add +4.6% | 37,558 | $11.0M |
| California Public Employees Retirement System | 0.01% | Add +4.5% | 36,941 | $10.8M |
| Legal & General Group Plc | 0.00% | Add +1.7% | 36,847 | $10.8M |
| Teachers Retirement System of the State of Kentucky | 0.07% | No change | 36,444 | $10.7M |
| Swiss National Bank | 0.01% | Reduce -1.5% | 36,320 | $10.7M |
| Invesco Ltd. | 0.00% | Reduce -1.5% | 36,283 | $10.7M |
| Sector Gamma As | 2.12% | Add +40.4% | 33,350 | $9.8M |
| Quantinno Capital Management LP | 0.01% | Reduce -10.8% | 30,004 | $8.8M |
| Nuveen, LLC | 0.00% | Add +0.3% | 29,493 | $8.7M |
| Palliser Capital (UK) Ltd | 4.41% | New | 27,954 | $8.2M |
| GAMCO Investors | 0.07% | No change | 26,750 | $7.9M |
| Gabelli Funds LLC | 0.05% | Reduce -8.8% | 25,900 | $7.6M |
| Tudor Investment Corporation | 0.03% | Add +384.4% | 25,000 | $7.3M |
| Winslow Asset Management Inc. | 1.26% | Add +2.5% | 24,773 | $7.3M |
| Concentric Capital Strategies, LP | 0.43% | New | 23,692 | $7.0M |
| Hound Partners, LLC | 0.76% | Reduce -77.0% | 22,481 | $6.6M |
| Alliancebernstein L.P. | 0.00% | Reduce -8.1% | 22,502 | $6.3M |
| Acadian Asset Management LLC | 0.01% | Reduce -79.2% | 21,359 | $6.3M |
| California State Teachers Retirement System | 0.01% | Reduce -5.3% | 20,766 | $6.1M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -74.0% | 19,287 | $5.7M |
| D. E. Shaw & Co. | 0.00% | Add +136.4% | 19,256 | $5.7M |
| Marshall Wace, LLP | 0.00% | Reduce -42.9% | 18,980 | $5.6M |
| Retirement Systems of Alabama | 0.02% | Reduce -16.4% | 18,628 | $5.5M |
| BNP Paribas Financial Markets | 0.00% | Reduce -30.9% | 18,205 | $5.3M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | Add +9.0% | 17,841 | $5.2M |
| Russell Investments Group, Ltd. | 0.00% | Add +12.5% | 17,435 | $5.1M |
| HSBC Holdings PLC | 0.00% | Add +12.8% | 17,582 | $5.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -7.6% | 16,649 | $4.9M |
| New York State Teachers Retirement System | 0.01% | Reduce -10.4% | 16,464 | $4.8M |
| Royal Bank of Canada | 0.00% | Reduce -4.4% | 16,448 | $4.8M |
| AYAL Capital Advisors Ltd | 2.46% | New | 16,333 | $4.8M |
| State Board of Administration of Florida Retirement System | 0.01% | Reduce -2.1% | 15,663 | $4.6M |
| Amundi | 0.00% | Reduce -61.2% | 15,057 | $4.4M |
| LPL Financial LLC | 0.00% | Reduce -7.6% | 15,011 | $4.4M |
"% of holder's portfolio" is BIO's weight in each manager's 13F, not the share of Bio-Rad Laboratories-A the manager owns.