DaveManuel.com · Institutional Ownership · Who Owns It
BIO RAD LABS INC (BIO)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
403
Reporting holders
$6.5B
Reported value
0.2%
Calls
0.0%
Puts
+5
Holder change
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| First Eagle Investment Management, LLC | $1.5B | 5,212,438 | 1.27% | 13q | +100.3%+$766.2M |
| BlackRock, Inc. | $498.8M | 1,698,929 | 0.01% | 8q | +1.1%+$5.5M |
| DIMENSIONAL FUND ADVISORS LP | $277.3M | 944,548 | 0.05% | 31q | -13.3%-$42.5M |
| VANGUARD CAPITAL MANAGEMENT LLC | $242.8M | 826,972 | 0.01% | 2q | -0.5%-$1.2M |
| ARIEL INVESTMENTS, LLC | $239.8M | 816,751 | 2.39% | 31q | +3.9%+$9.0M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $239.6M | 816,198 | 0.01% | 2q | -1.6%-$3.8M |
| EARNEST PARTNERS LLC | $170.5M | 580,752 | 0.61% | 31q | -1.4%-$2.3M |
| STATE STREET CORP | $167.9M | 571,762 | 0.00% | 31q | +2.2%+$3.6M |
| BANK OF AMERICA CORP /DE/ | $144.0M | 490,412 | 0.01% | 31q | +10.2%+$13.3M |
| Assenagon Asset Management S.A. | $137.0M | 466,454 | 0.09% | 6q | +215.5%+$93.6M |
| Capital World Investors | $135.8M | 462,457 | 0.02% | 2q | +2.8%+$3.7M |
| Capital Research Global Investors | $130.2M | 443,483 | 0.02% | 4q | +15.0%+$17.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $123.0M | 418,884 | 0.02% | 31q | -1.7%-$2.1M |
| First Pacific Advisors, LP | $118.0M | 401,861 | 1.46% | 11q | -1.3%-$1.6M |
| GEODE CAPITAL MANAGEMENT, LLC | $102.1M | 347,575 | 0.01% | 31q | -4.7%-$5.0M |
| NOMURA HOLDINGS INC | $96.6M | 328,897 | 0.11% | 2q | +51.3%+$32.8M |
| UBS Group AG | $90.5M | 308,325 | 0.01% | 31q | -13.0%-$13.5M |
| SEI INVESTMENTS CO | $80.3M | 273,377 | 0.07% | 31q | -5.0%-$4.3M |
| BARCLAYS PLC | $78.6M | 267,634 | 0.02% | 31q | -4.0%-$3.3M |
| DEERFIELD MANAGEMENT COMPANY, L.P. | $66.4M | 226,070 | 0.69% | 12q | HELD |
| NORTHERN TRUST CORP | $64.1M | 218,285 | 0.01% | 31q | HELD |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $57.4M | 195,538 | 0.01% | 31q | -0.5%-$299.5K |
| FRANKLIN RESOURCES INC | $56.9M | 193,682 | 0.01% | 31q | +13.7%+$6.8M |
| AQR CAPITAL MANAGEMENT LLC | $56.0M | 192,711 | 0.02% | 31q | +103.8%+$28.5M |
| MORGAN STANLEY | $55.9M | 190,285 | 0.00% | 35q | -30.5%-$24.6M |
| GOLDMAN SACHS GROUP INC | $53.2M | 181,225 | 0.00% | 31q | +241.7%+$37.6M |
| SG Americas Securities, LLC | $50.1M | 170,802 | 0.03% | 11q | +155.0%+$30.5M |
| GW&K Investment Management, LLC | $49.0M | 166,905 | 0.38% | 31q | -4.5%-$2.3M |
| Gotham Asset Management, LLC | $48.8M | 166,262 | 0.11% | 31q | +9.1%+$4.1M |
| Freestone Grove Partners LP | $41.1M | 140,113 | 0.26% | 3q | -5.1%-$2.2M |
| THOMPSON SIEGEL & WALMSLEY LLC | $38.1M | 129,881 | 0.68% | 16q | -26.4%-$13.7M |
| MANGROVE PARTNERS IM, LLC | $37.3M | 127,191 | 2.45% | 4q | HELD |
| VICTORY CAPITAL MANAGEMENT INC | $35.9M | 122,126 | 0.02% | 29q | +555.2%+$30.4M |
| Fisher Asset Management, LLC | $34.3M | 116,909 | 0.01% | 31q | -1.5%-$520.9K |
| VANGUARD FIDUCIARY TRUST CO | $33.6M | 114,403 | 0.01% | 2q | +0.7%+$224.3K |
| Bank of New York Mellon Corp | $33.4M | 113,854 | 0.01% | 31q | -10.2%-$3.8M |
| ING GROEP NV | $33.1M | 112,700 | 0.16% | 2q | +25.2%+$6.7M |
| NEUBERGER BERMAN GROUP LLC | $32.8M | 111,812 | 0.02% | 31q | +3591.4%+$32.0M |
| NORGES BANK | $32.8M | 111,580 | 0.00% | 32q | -2.3%-$767.5K |
| Boston Trust Walden Corp | $32.6M | 111,167 | 0.25% | 4q | +18.9%+$5.2M |
| ENVESTNET ASSET MANAGEMENT INC | $31.0M | 105,449 | 0.01% | 31q | HELD |
| JPMORGAN CHASE & CO | $30.5M | 102,605 | 0.00% | 31q | +3.2%+$956.8K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $29.8M | 101,580 | 0.02% | 31q | +1.9%+$546.1K |
| WELLS FARGO & COMPANY/MN | $28.6M | 97,500 | 0.00% | 31q | +371.7%+$22.6M |
| Hosking Partners LLP | $27.7M | 94,430 | 0.92% | 31q | +36.8%+$7.5M |
| FIRST TRUST ADVISORS LP | $27.7M | 94,209 | 0.02% | 5q | +6089.8%+$27.2M |
| JNE Partners LLP | $26.0M | 88,511 | 10.68% | 5q | -3.9%-$1.1M |
| Allianz Asset Management GmbH | $25.8M | 87,780 | 0.02% | 6q | -20.4%-$6.6M |
| NATIXIS ADVISORS, LLC | $24.2M | 82,389 | 0.03% | 13q | +9.8%+$2.2M |
| JONES FINANCIAL COMPANIES LLLP | $23.7M | 78,878 | 0.01% | 9q | +9.6%+$2.1M |
| EXCHANGE TRADED CONCEPTS, LLC | $21.2M | 72,116 | 0.10% | 27q | +23.2%+$4.0M |
| Mawer Investment Management Ltd. | $21.0M | 71,577 | 0.14% | 23q | -62.1%-$34.4M |
| Allspring Global Investments Holdings, LLC | $20.7M | 69,598 | 0.03% | 19q | -19.0%-$4.9M |
| Tikvah Management LLC | $20.1M | 68,604 | 6.12% | 18q | -29.9%-$8.6M |
| QVIDTVM Management LLC | $19.4M | 66,243 | 25.39% | 12q | -20.9%-$5.1M |
| NATIONAL BANK OF CANADA /FI/ | $19.1M | 65,000 | 0.01% | 2q | -27.8%-$7.3M |
| CITADEL ADVISORS LLC | $18.8M incl. $910.2K options CALL | 60,819 | 0.00% | 22q | -59.1%-$27.1M |
| WELLINGTON MANAGEMENT GROUP LLP | $17.7M | 60,249 | 0.00% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $17.6M | 59,895 | 0.01% | 31q | +1718.3%+$16.6M |
| Arnhold LLC | $16.3M | 55,568 | 1.14% | 5q | +29.5%+$3.7M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $16.2M incl. $14.0M options CALL+PUT | 7,519 | 0.00% | 31q | +155.9%+$9.9M |
| RHUMBLINE ADVISERS | $13.3M | 45,140 | 0.01% | 31q | -1.9%-$263.4K |
| ASSETMARK, INC | $13.0M | 44,277 | 0.02% | 26q | +13.6%+$1.6M |
| Portolan Capital Management, LLC | $12.5M | 42,620 | 0.47% | 31q | +200.7%+$8.4M |
| Marathon Asset Management Ltd | $12.3M | 41,975 | 0.50% | 10q | -21.8%-$3.4M |
| PRINCIPAL FINANCIAL GROUP INC | $12.0M | 40,905 | 0.01% | 31q | +0.7%+$85.4K |
| BANK OF NOVA SCOTIA | $11.7M | 39,708 | 0.02% | new | NEW |
| RAYMOND JAMES FINANCIAL INC | $11.0M | 37,558 | 0.00% | 7q | +4.6%+$488.6K |
| California Public Employees Retirement System | $10.8M | 36,941 | 0.01% | 31q | +4.5%+$467.7K |
| Legal & General Group Plc | $10.8M | 36,847 | 0.00% | 31q | +1.7%+$181.7K |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY | $10.7M | 36,444 | 0.07% | 30q | HELD |
| Swiss National Bank | $10.7M | 36,320 | 0.01% | 31q | -1.5%-$164.4K |
| Invesco Ltd. | $10.7M | 36,283 | 0.00% | 31q | -1.5%-$162.1K |
| SECTOR GAMMA AS | $9.8M | 33,350 | 2.12% | 11q | +40.4%+$2.8M |
| Quantinno Capital Management LP | $8.8M | 30,004 | 0.01% | 8q | -10.8%-$1.1M |
| Nuveen, LLC | $8.7M | 29,493 | 0.00% | 6q | HELD |
| Palliser Capital (UK) Ltd | $8.2M | 27,954 | 4.41% | new | NEW |
| GAMCO INVESTORS, INC. ET AL | $7.9M | 26,750 | 0.07% | 31q | HELD |
| GABELLI FUNDS LLC | $7.6M | 25,900 | 0.05% | 31q | -8.8%-$734.0K |
| TUDOR INVESTMENT CORP ET AL | $7.3M | 25,000 | 0.01% | 2q | +384.4%+$5.8M |
| WINSLOW ASSET MANAGEMENT INC | $7.3M | 24,773 | 1.26% | 31q | +2.5%+$177.4K |
| Concentric Capital Strategies, LP | $7.0M | 23,692 | 0.39% | new | NEW |
| Hound Partners, LLC | $6.6M | 22,481 | 0.76% | 17q | -77.0%-$22.1M |
| ALLIANCEBERNSTEIN L.P. | $6.3M | 22,502 | 0.00% | 31q | -8.1%-$553.3K |
| ACADIAN ASSET MANAGEMENT LLC | $6.3M | 21,359 | 0.01% | 25q | -79.2%-$23.9M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $6.1M | 20,766 | 0.01% | 31q | -5.3%-$342.3K |
| PRICE T ROWE ASSOCIATES INC /MD/ | $5.7M | 19,287 | 0.00% | 31q | -74.0%-$16.1M |
| D. E. Shaw & Co., Inc. | $5.7M | 19,256 | 0.00% | 31q | +136.4%+$3.3M |
| MARSHALL WACE, LLP | $5.6M | 18,980 | 0.00% | 7q | -42.9%-$4.2M |
| Retirement Systems of Alabama | $5.5M | 18,628 | 0.02% | 31q | -16.4%-$1.1M |
| BNP PARIBAS FINANCIAL MARKETS | $5.3M | 18,205 | 0.00% | 31q | -30.8%-$2.4M |
| VANGUARD ASSET MANAGEMENT, Ltd | $5.2M | 17,841 | 0.00% | 2q | +9.0%+$432.5K |
| Russell Investments Group, Ltd. | $5.1M | 17,435 | 0.00% | 31q | +12.5%+$569.9K |
| HSBC HOLDINGS PLC | $5.1M | 17,582 | 0.00% | 2q | +12.8%+$578.9K |
| AMERIPRISE FINANCIAL INC | $4.9M | 16,649 | 0.00% | 31q | -7.6%-$403.4K |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $4.8M | 16,464 | 0.01% | 31q | -10.4%-$560.2K |
| ROYAL BANK OF CANADA | $4.8M | 16,448 | 0.00% | 31q | -4.4%-$220.2K |
| AYAL Capital Advisors Ltd | $4.8M | 16,333 | 1.30% | new | NEW |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $4.6M | 15,663 | 0.01% | 31q | -2.1%-$99.8K |
| Amundi | $4.4M | 15,057 | 0.00% | 21q | -61.2%-$7.0M |
Showing the largest 100 of 403 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-08-04 | 2026-07-31 | Exit or disposal costs | filing |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 105 | $226.5M | 599,805 | 18 | 25 | 24 | 0.0% |
| Q2 2026 | 403 | $6.5B | 22,248,210 | 55 | 109 | 152 | 0.3% |
| Q1 2026 | 398 | $5.6B | 19,987,787 | 54 | 140 | 93 | 0.2% |
| Q4 2025 | 402 | $6.0B | 19,671,267 | 42 | 102 | 145 | 0.2% |
| Q3 2025 | 399 | $5.5B | 19,544,762 | 61 | 116 | 137 | 0.1% |
| Q2 2025 | 386 | $4.7B | 19,345,691 | 52 | 111 | 166 | 0.3% |
| Q1 2025 | 437 | $4.7B | 19,481,112 | 57 | 130 | 159 | 0.2% |
| Q4 2024 | 459 | $6.2B | 18,788,268 | 59 | 137 | 143 | 0.1% |
| Q3 2024 | 440 | $6.5B | 19,483,861 | 62 | 128 | 168 | 0.2% |
| Q2 2024 | 443 | $5.4B | 19,862,711 | 52 | 129 | 176 | 0.4% |
| Q1 2024 | 472 | $6.6B | 19,093,693 | 51 | 155 | 163 | 0.7% |
| Q4 2023 | 490 | $6.2B | 18,827,904 | 68 | 158 | 169 | 1.2% |
| Q3 2023 | 471 | $6.8B | 18,800,093 | 55 | 138 | 174 | 0.8% |
| Q2 2023 | 470 | $7.3B | 18,845,772 | 47 | 150 | 183 | 1.1% |
| Q1 2023 | 507 | $9.4B | 19,398,256 | 72 | 188 | 148 | 1.0% |
| Q4 2022 | 472 | $8.2B | 19,253,334 | 50 | 190 | 144 | 1.4% |
| Q3 2022 | 461 | $16.5B | 39,069,227 | 48 | 179 | 142 | 1.1% |
| Q2 2022 | 487 | $20.6B | 41,233,874 | 61 | 145 | 195 | 0.8% |
| Q1 2022 | 503 | $23.2B | 40,971,597 | 63 | 171 | 179 | 0.6% |
| Q4 2021 | 523 | $35.6B | 46,877,715 | 54 | 172 | 178 | 0.5% |
| Q3 2021 | 500 | $38.2B | 51,092,390 | 46 | 163 | 181 | 0.3% |
| Q2 2021 | 501 | $64.9B | 100,525,157 | 56 | 178 | 160 | 0.2% |
| Q1 2021 | 484 | $21.0B | 36,758,338 | 55 | 200 | 131 | 0.2% |
| Q4 2020 | 486 | $15.9B | 27,128,199 | 58 | 165 | 163 | 0.3% |
| Q3 2020 | 478 | $21.3B | 41,293,157 | 58 | 173 | 167 | 0.1% |
| Q2 2020 | 469 | $23.4B | 51,838,296 | 99 | 152 | 153 | 0.1% |
| Q1 2020 | 404 | $17.5B | 49,643,851 | 59 | 136 | 136 | 0.1% |
| Q4 2019 | 384 | $13.9B | 37,425,680 | 66 | 127 | 107 | 0.3% |
| Q3 2019 | 352 | $11.1B | 33,177,947 | 51 | 137 | 92 | 0.5% |
| Q2 2019 | 331 | $11.8B | 37,682,205 | 40 | 98 | 121 | 0.3% |
| Q1 2019 | 347 | $11.8B | 38,232,263 | 61 | 122 | 100 | 1.2% |
| Q4 2018 | 326 | $9.0B | 38,821,317 | 5 | 7 | 7 | 0.1% |