Bio-Rad Laboratories-ABIO
13F holders, Q4 2025 (December 31)400holders +3
42new positions
51sold out
8famous investors
$302.85avg. 13F price*
At the end of Q4 2025, 400 institutions reported holding Bio-Rad Laboratories-A (BIO) in their 13F filings, up 3 from Q3 2025. 42 opened new positions and 51 sold out. The largest holders were First Eagle Investment Management, LLC ($778.8M), Vanguard Group Inc. ($537.6M) and BlackRock, Inc. ($509.3M). 8 famous investors held it, including John W. Rogers Jr. (2.5% 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 Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 42 | $124.0M |
| Exits | 51 | $101.0M |
All 13F filers, Q3 2025 → Q4 2025: 1,371,101 shares bought and 1,567,895 shares sold, net −196,794 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 400 holders
| First Eagle Investment Management, LLC | 1.37% | Add +2.0% | 2,570,473 | $778.8M |
| Vanguard Group Inc. | 0.01% | Reduce -1.1% | 1,774,263 | $537.6M |
| BlackRock, Inc. | 0.01% | Reduce -0.9% | 1,680,948 | $509.3M |
| Dimensional Fund Advisors LP | 0.07% | Add +1.3% | 1,077,072 | $326.3M |
| Ariel Investments | 2.50% | Reduce -5.5% | 764,672 | $231.7M |
| Earnest Partners LLC | 0.78% | Reduce -0.9% | 603,594 | $182.9M |
| State Street Corp. | 0.01% | Reduce -2.1% | 559,604 | $169.6M |
| Veritas Asset Management LLP | 1.68% | Reduce -35.6% | 543,335 | $164.6M |
| Capital Research Global Investors | 0.03% | Add +18.2% | 494,472 | $149.8M |
| Bank of America Corp. | 0.01% | Reduce -3.1% | 445,449 | $135.0M |
| First Pacific Advisors, LP | 1.63% | Add +1.8% | 401,457 | $121.6M |
| Massachusetts Financial Services Co. | 0.04% | Add +4534.4% | 399,207 | $121.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.03% | Reduce -0.5% | 395,077 | $119.7M |
| Geode Capital Management, LLC | 0.01% | Reduce -3.4% | 338,328 | $102.5M |
| Sei Investments Co. | 0.09% | Add +3.3% | 291,914 | $88.4M |
| Fuller & Thaler Asset Management, Inc. | 0.27% | Add +9.1% | 259,577 | $78.6M |
| Parnassus Investments, LLC | 0.20% | Reduce -20.0% | 252,140 | $76.4M |
| Boston Partners | 0.08% | New | 247,612 | $75.0M |
| Mawer Investment Management Ltd. | 0.40% | Reduce -3.9% | 233,946 | $70.9M |
| Southeastern Asset Management Inc. | 3.07% | Reduce -4.1% | 227,630 | $69.0M |
| Deerfield Management Company, L.P. | 1.00% | No change | 226,070 | $68.5M |
| UBS Group AG | 0.01% | Reduce -6.3% | 216,186 | $65.5M |
| Northern Trust Corp. | 0.01% | Reduce -4.3% | 216,171 | $65.5M |
| Thompson Siegel & Walmsley LLC | 0.98% | Reduce -11.8% | 191,961 | $58.2M |
| Morgan Stanley | 0.00% | Add +7.1% | 186,387 | $56.5M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +0.2% | 180,389 | $54.7M |
| GW&K Investment Management, LLC | 0.46% | Reduce -3.7% | 177,083 | $53.7M |
| Westfield Capital Management Co. LP | 0.21% | Add +6.2% | 165,107 | $50.0M |
| Franklin Resources Inc. | 0.01% | Add +1.7% | 137,217 | $41.6M |
| Fisher Asset Management | 0.01% | Reduce -1.8% | 131,094 | $39.7M |
| Allspring Global Investments Holdings, LLC | 0.06% | Reduce -4.1% | 129,211 | $39.4M |
| Bank of New York Mellon Corp | 0.01% | Reduce -2.9% | 129,354 | $39.2M |
| Mangrove Partners Im, LLC | 3.13% | No change | 126,853 | $38.4M |
| Manufacturers Life Insurance Company, The | 0.03% | Add +14.2% | 122,574 | $37.1M |
| Acadian Asset Management LLC | 0.06% | Reduce -13.1% | 120,634 | $36.5M |
| Gotham Asset Management | 0.13% | Reduce -6.1% | 117,018 | $35.5M |
| Norges Bank | 0.00% | — | 114,194 | $34.6M |
| Federated Hermes, Inc. | 0.06% | Reduce -9.7% | 113,929 | $34.5M |
| Tikvah Management LLC | 8.99% | No change | 111,084 | $33.7M |
| Freestone Grove Partners LP | 0.24% | New | 110,524 | $33.5M |
| Allianz Asset Management GmbH | 0.04% | Add +65.6% | 110,204 | $33.4M |
| Envestnet Asset Management Inc. | 0.01% | Reduce -12.3% | 94,533 | $28.6M |
| JNE Partners LLP | 11.59% | No change | 92,100 | $27.9M |
| Boston Trust Walden Corp | 0.21% | Reduce -5.9% | 89,838 | $27.2M |
| QVIDTVM Management LLC | 28.62% | Reduce -34.0% | 83,483 | $25.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +1.1% | 76,271 | $23.1M |
| Jane Street Group, LLC | 0.03% | Add +77.2% | 73,967 | $22.4M |
| BNP Paribas Financial Markets | 0.01% | Add +2098.0% | 72,555 | $22.0M |
| Natixis Advisors, LLC | 0.03% | Add +9.0% | 70,916 | $21.5M |
| T. Rowe Price Investment Management, Inc. | 0.01% | Reduce -10.1% | 58,633 | $17.8M |
| First Trust Advisors LP | 0.01% | Add +4591.1% | 57,232 | $17.3M |
| JPMorgan Chase & Co. | 0.00% | Reduce -3.8% | 54,119 | $16.4M |
| Hosking Partners LLP | 0.56% | Reduce -0.3% | 53,968 | $16.4M |
| Moore Capital Management, LP | 0.32% | Reduce -9.1% | 50,000 | $15.1M |
| Marathon Asset Management Ltd | 0.55% | Reduce -8.9% | 47,292 | $14.3M |
| Rhumbline Advisers | 0.01% | Reduce -6.4% | 45,396 | $13.8M |
| Hound Partners, LLC | 1.82% | Reduce -58.4% | 43,268 | $13.1M |
| AQR Capital Management | 0.01% | Add +25.7% | 40,195 | $12.2M |
| Principal Financial Group Inc. | 0.01% | Reduce -3.5% | 39,127 | $11.9M |
| Legal & General Group Plc | 0.00% | Reduce -6.7% | 38,319 | $11.6M |
| Swiss National Bank | 0.01% | Add +1.3% | 36,880 | $11.2M |
| Teachers Retirement System of the State of Kentucky | 0.08% | No change | 36,444 | $11.0M |
| Quantinno Capital Management LP | 0.02% | Add +30.4% | 36,235 | $11.0M |
| Goldman Sachs Group Inc. | 0.00% | Add +78.3% | 36,219 | $11.0M |
| Invesco Ltd. | 0.00% | Reduce -2.4% | 35,060 | $10.6M |
| California Public Employees Retirement System | 0.01% | Add +4.1% | 34,925 | $10.6M |
| Arnhold LLC | 0.80% | No change | 34,784 | $10.5M |
| Portolan Capital Management, LLC | 0.55% | Reduce -26.4% | 34,159 | $10.3M |
| Gabelli Funds LLC | 0.07% | Reduce -10.6% | 33,800 | $10.2M |
| Raymond James Financial Inc. | 0.00% | Add +21.5% | 33,106 | $10.0M |
| Assetmark, Inc. | 0.02% | Add +13.7% | 32,765 | $9.9M |
| Campbell & CO Investment Adviser LLC | 0.46% | Add +1305.3% | 31,478 | $9.5M |
| Exchange Traded Concepts, LLC | 0.07% | Add +37.1% | 29,592 | $9.0M |
| Nuveen, LLC | 0.00% | Reduce -3.6% | 28,685 | $8.7M |
| GAMCO Investors | 0.08% | No change | 26,750 | $8.1M |
| Barclays PLC | 0.00% | Reduce -25.0% | 24,494 | $7.4M |
| Winslow Asset Management Inc. | 1.36% | Add +4.2% | 24,398 | $7.4M |
| Sector Gamma As | 1.64% | Add +4.0% | 23,750 | $7.2M |
| Alliancebernstein L.P. | 0.00% | Reduce -9.8% | 23,281 | $7.1M |
| Millennium Management | 0.01% | Reduce -9.2% | 22,206 | $6.7M |
| Retirement Systems of Alabama | 0.02% | Reduce -1.1% | 21,822 | $6.6M |
| AYAL Capital Advisors Ltd | 3.32% | Add +14.3% | 20,000 | $6.1M |
| Van Eck Associates Corp. | 0.01% | Reduce -45.5% | 19,906 | $6.0M |
| SG Americas Securities, LLC | 0.01% | Add +195.6% | 18,958 | $5.7M |
| State Board of Administration of Florida Retirement System | 0.01% | No change | 18,638 | $5.6M |
| Ameriprise Financial Inc. | 0.00% | Reduce -8.9% | 18,211 | $5.5M |
| Wells Fargo & Company | 0.00% | Add +3.0% | 18,097 | $5.5M |
| California State Teachers Retirement System | 0.01% | Reduce -0.4% | 17,850 | $5.4M |
| New York State Teachers Retirement System | 0.01% | Reduce -0.6% | 17,500 | $5.3M |
| XTX Topco Ltd | 0.13% | New | 16,108 | $4.9M |
| Brandywine Global Investment Management, LLC | 0.03% | Add +388.9% | 15,415 | $4.7M |
| LPL Financial LLC | 0.00% | Add +9.4% | 15,294 | $4.6M |
| Royal Bank of Canada | 0.00% | Reduce -91.7% | 14,711 | $4.5M |
| RK Asset Management, LLC | 4.17% | Add +0.5% | 14,573 | $4.4M |
| Quantedge Capital Pte Ltd | 2.04% | Reduce -45.2% | 14,140 | $4.3M |
| Victory Capital Management Inc. | 0.00% | Add +408.5% | 13,878 | $4.2M |
| State of Wisconsin Investment Board | 0.01% | Reduce -14.0% | 13,648 | $4.1M |
| Comerica Bank | 0.01% | Reduce -35.3% | 12,350 | $3.7M |
| DekaBank Deutsche Girozentrale | 0.01% | No change | 12,211 | $3.7M |
| Sivik Global Healthcare LLC | 1.78% | Add +9.1% | 12,000 | $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.