Bio-Rad Laboratories-ABIO
13F holders, Q1 2025 (March 31)436holders −21
57new positions
82sold out
9famous investors
$242.06avg. 13F price*
At the end of Q1 2025, 436 institutions reported holding Bio-Rad Laboratories-A (BIO) in their 13F filings, down 21 from Q4 2024. 57 opened new positions and 82 sold out. The largest holders were BlackRock, Inc. ($492.4M), Vanguard Group Inc. ($465.7M) and First Eagle Investment Management, LLC ($381.5M). 9 famous investors held it, including John W. Rogers Jr. (2.1% of Ariel Investments's portfolio), Israel Englander (0.1% of Millennium 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 Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 57 | $44.7M |
| Exits | 82 | $154.5M |
All 13F filers, Q4 2024 → Q1 2025: 2,429,176 shares bought and 1,859,279 shares sold, net +569,897 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 436 holders
| BlackRock, Inc. | 0.01% | Add +0.5% | 2,021,720 | $492.4M |
| Vanguard Group Inc. | 0.01% | Reduce -0.4% | 1,912,157 | $465.7M |
| First Eagle Investment Management, LLC | 0.81% | Add +119.5% | 1,566,190 | $381.5M |
| Veritas Asset Management LLP | 2.25% | Reduce -6.5% | 913,122 | $222.4M |
| Dimensional Fund Advisors LP | 0.05% | Add +17.6% | 877,040 | $213.6M |
| Ariel Investments | 2.07% | Add +29.3% | 724,660 | $176.5M |
| State Street Corp. | 0.01% | Add +0.6% | 694,520 | $169.2M |
| Earnest Partners LLC | 0.70% | Reduce -3.0% | 599,621 | $146.0M |
| Van Eck Associates Corp. | 0.19% | Reduce -17.5% | 596,730 | $145.3M |
| Bank of America Corp. | 0.01% | Add +0.8% | 430,539 | $104.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.02% | Reduce -1.5% | 382,807 | $93.2M |
| First Pacific Advisors, LP | 1.47% | Add +136.0% | 372,555 | $90.7M |
| Geode Capital Management, LLC | 0.01% | Add +6.5% | 342,943 | $83.4M |
| Millennium Management | 0.08% | Reduce -11.3% | 336,052 | $81.8M |
| Southeastern Asset Management Inc. | 4.20% | Add +5.0% | 323,805 | $78.9M |
| Parnassus Investments, LLC | 0.19% | Add +2.3% | 318,111 | $77.5M |
| Mawer Investment Management Ltd. | 0.35% | Add +14.8% | 294,879 | $71.8M |
| Thompson Siegel & Walmsley LLC | 1.16% | Add +8.3% | 279,489 | $68.1M |
| Select Equity Group, L.P. | 0.29% | Reduce -42.4% | 265,180 | $64.6M |
| Northern Trust Corp. | 0.01% | Add +0.1% | 261,122 | $63.6M |
| Sei Investments Co. | 0.08% | Reduce -6.6% | 253,562 | $61.8M |
| Deerfield Management Company, L.P. | 1.25% | Add +49.1% | 226,070 | $55.1M |
| UBS Group AG | 0.01% | Add +174.5% | 217,636 | $53.0M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +5.9% | 203,180 | $49.5M |
| Bank of New York Mellon Corp | 0.01% | Reduce -24.1% | 202,813 | $49.4M |
| Hound Partners, LLC | 9.75% | Add +242.8% | 201,783 | $49.1M |
| Morgan Stanley | 0.00% | Reduce -20.8% | 196,624 | $47.9M |
| Norges Bank | 0.01% | Add +23.6% | 156,714 | $38.2M |
| GW&K Investment Management, LLC | 0.32% | Reduce -1.1% | 143,879 | $35.0M |
| Fisher Asset Management | 0.02% | Add +34.4% | 143,626 | $35.0M |
| Federated Hermes, Inc. | 0.07% | Add +1.9% | 140,250 | $34.2M |
| Westfield Capital Management Co. LP | 0.16% | Reduce -49.1% | 134,671 | $32.8M |
| Allspring Global Investments Holdings, LLC | 0.06% | Reduce -5.4% | 135,947 | $32.6M |
| QVIDTVM Management LLC | 27.17% | Add +6.1% | 126,200 | $30.7M |
| Artisan Partners Limited Partnership | 0.05% | Reduce -19.7% | 119,868 | $29.2M |
| Manufacturers Life Insurance Company, The | 0.03% | Add +6.3% | 114,002 | $27.8M |
| Franklin Resources Inc. | 0.01% | Reduce -15.8% | 113,706 | $27.7M |
| Tikvah Management LLC | 9.38% | Reduce -6.0% | 111,084 | $27.1M |
| Goldman Sachs Group Inc. | 0.00% | Add +45.6% | 105,006 | $25.6M |
| Envestnet Asset Management Inc. | 0.01% | Reduce -1.7% | 103,224 | $25.1M |
| DAVENPORT & Co LLC | 0.14% | Add +14.1% | 96,605 | $23.5M |
| Acadian Asset Management LLC | 0.05% | Add +79.5% | 73,431 | $17.9M |
| Marathon Asset Management Ltd | 0.45% | Reduce -9.6% | 60,655 | $14.8M |
| HRT Financial LP | 0.09% | New | 58,733 | $14.3M |
| Legal & General Group Plc | 0.00% | Reduce -1.6% | 58,015 | $14.1M |
| JPMorgan Chase & Co. | 0.00% | Add +21.4% | 57,243 | $13.9M |
| Rhumbline Advisers | 0.01% | Add +1.7% | 55,410 | $13.5M |
| Swiss National Bank | 0.01% | Add +0.6% | 55,000 | $13.4M |
| Hosking Partners LLP | 0.56% | Reduce -0.9% | 54,491 | $13.3M |
| Principal Financial Group Inc. | 0.01% | Add +0.5% | 44,343 | $10.8M |
| ExodusPoint Capital Management, LP | 0.14% | Add +180.2% | 44,291 | $10.8M |
| Gabelli Funds LLC | 0.08% | No change | 40,300 | $9.8M |
| Invesco Ltd. | 0.00% | Add +2.7% | 39,986 | $9.7M |
| Kornitzer Capital Management Inc. | 0.19% | Reduce -2.6% | 38,274 | $9.3M |
| Nuveen, LLC | 0.00% | — | 151,240 | $9.3M |
| CIBC Private Wealth Group LLC | 0.02% | Reduce -1.6% | 41,410 | $9.1M |
| Jane Street Group, LLC | 0.02% | Add +111.9% | 37,383 | $9.1M |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | Reduce -2.4% | 35,519 | $8.7M |
| Citigroup Inc. | 0.01% | Add +65.0% | 34,629 | $8.4M |
| Point72 Asset Management | 0.02% | Reduce -86.0% | 34,604 | $8.4M |
| California Public Employees Retirement System | 0.01% | Add +4.1% | 33,480 | $8.2M |
| Ameriprise Financial Inc. | 0.00% | Reduce -7.0% | 31,788 | $7.7M |
| Deutsche Bank AG | 0.00% | Reduce -17.7% | 30,957 | $7.5M |
| Royal Bank of Canada | 0.00% | Add +25.2% | 30,310 | $7.4M |
| Prelude Capital Management, LLC | 0.74% | Add +271.7% | 30,137 | $7.3M |
| Barclays PLC | 0.00% | Reduce -26.1% | 29,849 | $7.3M |
| Victory Capital Management Inc. | 0.01% | Add +33.9% | 29,742 | $7.2M |
| T. Rowe Price Associates Inc. | 0.00% | Add +1.1% | 29,475 | $7.2M |
| Gotham Asset Management | 0.06% | Add +29.7% | 28,466 | $6.9M |
| ICICI Prudential Asset Management Co Ltd | 0.90% | No change | 28,316 | $6.9M |
| Marshall Wace, LLP | 0.01% | Add +1088.9% | 27,095 | $6.6M |
| GAMCO Investors | 0.07% | No change | 26,750 | $6.5M |
| Natixis Advisors, LLC | 0.01% | Reduce -41.7% | 26,654 | $6.5M |
| CenterBook Partners LP | 0.41% | Add +125.5% | 26,654 | $6.5M |
| Teachers Retirement System of the State of Kentucky | 0.06% | No change | 26,644 | $6.5M |
| Alliancebernstein L.P. | 0.00% | Reduce -1.8% | 26,415 | $6.4M |
| California State Teachers Retirement System | 0.01% | Add +1.2% | 26,204 | $6.4M |
| Winslow Asset Management Inc. | 1.28% | Reduce -1.4% | 23,892 | $5.8M |
| Wells Fargo & Company | 0.00% | Reduce -41.4% | 23,623 | $5.8M |
| Retirement Systems of Alabama | 0.02% | Add +0.2% | 23,455 | $5.7M |
| Amundi | 0.00% | Add +16.4% | 23,336 | $5.5M |
| Portolan Capital Management, LLC | 0.40% | Reduce -28.9% | 21,740 | $5.3M |
| Bellevue Group AG | 0.12% | Reduce -36.0% | 21,476 | $5.2M |
| Corebridge Financial, Inc. | 0.03% | Reduce -2.3% | 21,283 | $5.2M |
| State Board of Administration of Florida Retirement System | 0.01% | Reduce -4.4% | 19,344 | $4.7M |
| D. E. Shaw & Co. | 0.01% | Reduce -23.1% | 18,925 | $4.6M |
| AQR Capital Management | 0.00% | Reduce -36.8% | 18,579 | $4.4M |
| New York State Teachers Retirement System | 0.01% | Add +1.2% | 17,500 | $4.3M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.01% | Add +55.3% | 16,440 | $4.0M |
| Allianz Asset Management GmbH | 0.01% | New | 16,346 | $4.0M |
| Comerica Bank | 0.02% | Reduce -73.8% | 15,654 | $3.8M |
| Raymond James Financial Inc. | 0.00% | Reduce -2.6% | 15,172 | $3.7M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | No change | 15,082 | $3.7M |
| State of Wisconsin Investment Board | 0.01% | Reduce -5.6% | 14,492 | $3.5M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -9.2% | 14,426 | $3.5M |
| RK Asset Management, LLC | 3.24% | Reduce -1.6% | 14,389 | $3.5M |
| Pictet Asset Management Holding SA | 0.00% | Add +9.3% | 14,332 | $3.5M |
| Brandywine Global Investment Management, LLC | 0.03% | Reduce -2.0% | 14,234 | $3.5M |
| Sector Gamma As | 1.08% | Reduce -17.8% | 13,829 | $3.4M |
| Candriam S.C.A. | 0.02% | Reduce -60.0% | 13,504 | $3.3M |
"% of holder's portfolio" is BIO's weight in each manager's 13F, not the share of Bio-Rad Laboratories-A the manager owns.