Bio-Rad Laboratories-ABIO
13F holders, Q3 2025 (September 30)397holders +13
62new positions
47sold out
10famous investors
$280.31avg. 13F price*
At the end of Q3 2025, 397 institutions reported holding Bio-Rad Laboratories-A (BIO) in their 13F filings, up 13 from Q2 2025. 62 opened new positions and 47 sold out. The largest holders were First Eagle Investment Management, LLC ($706.7M), Vanguard Group Inc. ($502.9M) and BlackRock, Inc. ($475.5M). 10 famous investors held it, including John W. Rogers Jr. (2.4% of Ariel Investments's portfolio), Joel Greenblatt (0.2% 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 Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 62 | $319.4M |
| Exits | 47 | $129.8M |
All 13F filers, Q2 2025 → Q3 2025: 2,236,830 shares bought and 1,819,490 shares sold, net +417,340 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 397 holders
| First Eagle Investment Management, LLC | 1.29% | Add +0.1% | 2,520,319 | $706.7M |
| Vanguard Group Inc. | 0.01% | Reduce -2.9% | 1,793,537 | $502.9M |
| BlackRock, Inc. | 0.01% | Reduce -3.8% | 1,695,849 | $475.5M |
| Dimensional Fund Advisors LP | 0.06% | Add +6.3% | 1,062,938 | $298.0M |
| Veritas Asset Management LLP | 2.53% | Reduce -2.2% | 844,039 | $236.7M |
| Ariel Investments | 2.43% | Reduce -1.1% | 809,480 | $227.0M |
| Earnest Partners LLC | 0.74% | Add +0.6% | 609,284 | $170.8M |
| State Street Corp. | 0.01% | Reduce -2.2% | 571,599 | $160.3M |
| Bank of America Corp. | 0.01% | Add +1.7% | 459,887 | $128.9M |
| Capital Research Global Investors | 0.02% | New | 418,355 | $117.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Add +2271.3% | 397,171 | $111.4M |
| First Pacific Advisors, LP | 1.55% | Add +1.9% | 394,414 | $110.6M |
| Geode Capital Management, LLC | 0.01% | Add +4.8% | 350,216 | $98.2M |
| Parnassus Investments, LLC | 0.20% | Reduce -0.6% | 315,328 | $88.4M |
| Sei Investments Co. | 0.09% | Add +6.4% | 282,469 | $79.2M |
| Mawer Investment Management Ltd. | 0.35% | Reduce -8.8% | 243,468 | $68.3M |
| Fuller & Thaler Asset Management, Inc. | 0.23% | New | 237,903 | $66.7M |
| Southeastern Asset Management Inc. | 3.40% | Reduce -24.8% | 237,254 | $66.5M |
| UBS Group AG | 0.01% | Add +14.9% | 230,719 | $64.7M |
| Deerfield Management Company, L.P. | 1.05% | No change | 226,070 | $63.4M |
| Northern Trust Corp. | 0.01% | Reduce -0.2% | 226,006 | $63.4M |
| Thompson Siegel & Walmsley LLC | 0.99% | Reduce -28.9% | 217,596 | $61.0M |
| GW&K Investment Management, LLC | 0.46% | Add +24.9% | 183,845 | $51.5M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -8.9% | 179,966 | $50.5M |
| Royal Bank of Canada | 0.01% | Add +16.2% | 176,091 | $49.4M |
| Morgan Stanley | 0.00% | Add +2.3% | 174,062 | $48.8M |
| Westfield Capital Management Co. LP | 0.18% | Add +11.5% | 155,524 | $43.6M |
| Allspring Global Investments Holdings, LLC | 0.06% | Add +3.3% | 134,767 | $40.2M |
| Acadian Asset Management LLC | 0.07% | Add +170.2% | 138,889 | $38.9M |
| Fisher Asset Management | 0.01% | Reduce -3.1% | 133,465 | $37.4M |
| Bank of New York Mellon Corp | 0.01% | Reduce -1.9% | 133,213 | $37.4M |
| Mangrove Partners Im, LLC | 2.96% | New | 126,853 | $35.6M |
| QVIDTVM Management LLC | 38.17% | Add +0.3% | 126,480 | $35.5M |
| Federated Hermes, Inc. | 0.06% | Reduce -0.7% | 126,137 | $35.4M |
| Gotham Asset Management | 0.15% | Add +41.8% | 124,626 | $34.9M |
| Franklin Resources Inc. | 0.01% | Add +2.5% | 134,927 | $34.5M |
| Tikvah Management LLC | 9.34% | No change | 111,084 | $31.1M |
| Envestnet Asset Management Inc. | 0.01% | Add +4.2% | 107,753 | $30.2M |
| Manufacturers Life Insurance Company, The | 0.03% | Reduce -10.2% | 107,299 | $30.1M |
| Hound Partners, LLC | 3.74% | Reduce -42.9% | 103,963 | $29.2M |
| Ilex Capital Partners (UK) LLP | 0.90% | Reduce -16.8% | 100,558 | $28.2M |
| Boston Trust Walden Corp | 0.20% | New | 95,448 | $26.8M |
| JNE Partners LLP | 10.99% | No change | 92,100 | $25.8M |
| Artisan Partners Limited Partnership | 0.03% | Reduce -26.9% | 86,371 | $24.2M |
| T. Rowe Price Associates Inc. | 0.00% | Add +105.0% | 75,477 | $21.2M |
| Allianz Asset Management GmbH | 0.02% | Add +22.7% | 66,549 | $18.7M |
| T. Rowe Price Investment Management, Inc. | 0.01% | Add +35.3% | 65,230 | $18.3M |
| Natixis Advisors, LLC | 0.03% | Add +67.1% | 65,069 | $18.2M |
| JPMorgan Chase & Co. | 0.00% | Add +4.7% | 56,250 | $15.8M |
| Moore Capital Management, LP | 0.31% | New | 55,000 | $15.4M |
| Squarepoint Ops LLC | 0.03% | New | 54,735 | $15.3M |
| Hosking Partners LLP | 0.55% | Add +0.1% | 54,127 | $15.2M |
| Marathon Asset Management Ltd | 0.54% | Reduce -13.2% | 51,918 | $14.6M |
| Citadel Advisors | 0.01% | Add +1821.5% | 50,306 | $14.1M |
| Rhumbline Advisers | 0.01% | Reduce -3.3% | 48,488 | $13.6M |
| Portolan Capital Management, LLC | 0.70% | Reduce -26.0% | 46,440 | $13.0M |
| Jane Street Group, LLC | 0.01% | Add +501.0% | 41,751 | $11.7M |
| Legal & General Group Plc | 0.00% | Reduce -7.0% | 41,086 | $11.5M |
| Principal Financial Group Inc. | 0.01% | Reduce -3.9% | 40,562 | $11.4M |
| Gabelli Funds LLC | 0.07% | Reduce -5.0% | 37,800 | $10.6M |
| Van Eck Associates Corp. | 0.01% | Reduce -9.2% | 36,554 | $10.3M |
| Teachers Retirement System of the State of Kentucky | 0.08% | Add +36.8% | 36,444 | $10.2M |
| Swiss National Bank | 0.01% | Reduce -2.1% | 36,400 | $10.2M |
| Invesco Ltd. | 0.00% | Reduce -5.3% | 35,932 | $10.1M |
| Arnhold LLC | 0.82% | No change | 34,784 | $9.8M |
| California Public Employees Retirement System | 0.01% | Add +4.2% | 33,549 | $9.4M |
| Man Group plc | 0.02% | Reduce -58.9% | 32,983 | $9.2M |
| Barclays PLC | 0.00% | Add +64.6% | 32,666 | $9.2M |
| AQR Capital Management | 0.01% | Add +13.4% | 31,971 | $8.7M |
| Nuveen, LLC | 0.00% | No change | 29,773 | $8.3M |
| Assetmark, Inc. | 0.02% | Add +36.0% | 28,808 | $8.1M |
| Quantinno Capital Management LP | 0.02% | Add +466.1% | 27,788 | $7.8M |
| Raymond James Financial Inc. | 0.00% | Add +20.7% | 27,239 | $7.6M |
| GAMCO Investors | 0.07% | No change | 26,750 | $7.5M |
| Alliancebernstein L.P. | 0.00% | Add +14.6% | 25,807 | $7.2M |
| Quantedge Capital Pte Ltd | 3.96% | New | 25,800 | $7.2M |
| HRT Financial LP | 0.03% | Reduce -65.6% | 25,739 | $7.2M |
| Millennium Management | 0.01% | Reduce -90.3% | 24,455 | $6.9M |
| ExodusPoint Capital Management, LP | 0.09% | Reduce -78.4% | 23,472 | $6.6M |
| Winslow Asset Management Inc. | 1.23% | Add +1.7% | 23,415 | $6.6M |
| Sector Gamma As | 1.59% | Add +28.0% | 22,827 | $6.4M |
| Retirement Systems of Alabama | 0.02% | Reduce -2.9% | 22,069 | $6.2M |
| Exchange Traded Concepts, LLC | 0.06% | Add +54.9% | 21,580 | $6.1M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -80.6% | 20,312 | $5.7M |
| ICICI Prudential Asset Management Co Ltd | 0.59% | Reduce -29.0% | 20,095 | $5.6M |
| Ameriprise Financial Inc. | 0.00% | Reduce -27.1% | 19,989 | $5.6M |
| Comerica Bank | 0.02% | Add +31.9% | 19,097 | $5.4M |
| State Board of Administration of Florida Retirement System | 0.01% | Reduce -5.9% | 18,638 | $5.2M |
| California State Teachers Retirement System | 0.01% | Add +0.0% | 17,922 | $5.0M |
| New York State Teachers Retirement System | 0.01% | Add +0.6% | 17,600 | $4.9M |
| Wells Fargo & Company | 0.00% | Reduce -7.3% | 17,575 | $4.9M |
| AYAL Capital Advisors Ltd | 2.83% | New | 17,500 | $4.9M |
| Aquatic Capital Management LLC | 0.09% | Add +0.8% | 17,424 | $4.9M |
| Prelude Capital Management, LLC | 0.37% | Reduce -42.8% | 16,733 | $4.7M |
| State of Wisconsin Investment Board | 0.01% | Reduce -1.4% | 15,872 | $4.5M |
| RK Asset Management, LLC | 3.70% | No change | 14,502 | $4.1M |
| LPL Financial LLC | 0.00% | Add +6.8% | 13,980 | $3.9M |
| CANADA LIFE ASSURANCE Co | 0.01% | Add +9.7% | 14,379 | $3.9M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -42.8% | 13,711 | $3.8M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Add +54.0% | 12,956 | $3.6M |
"% of holder's portfolio" is BIO's weight in each manager's 13F, not the share of Bio-Rad Laboratories-A the manager owns.