BIO Institutional Ownership & Shareholders
BIO-RAD LABORATORIES-A (BIO) is currently held by 395 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $5.63B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
First Eagle U.S. Value is currently the largest disclosed institutional shareholder of BIO tracked by InsiderSet, reporting ownership valued at approximately $765.21M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $969.98M, representing an estimated gain of +26.76% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 51% of the total disclosed BIO value among the investors covered in this analysis. Major shareholders include First Eagle U.S. Value, Blackrock, Inc., Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in BIO-RAD LABORATORIES-A (BIO).
This page ranks the largest institutional BIO shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
395
Total Reported Value
$5.63B
Largest Holder
First Eagle U.S. Value
Largest Position
$765.21M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
51
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| First Eagle U.S. Value | Jean-Marie Eveillard | 1.26% | 2,606,219 | $765,211,916 | $969,982,587 | +$204,770,671 | +26.76% |
| Blackrock, Inc. | 0.01% | 1,698,929 | $498,822,581 | $632,307,395 | +$133,484,814 | +26.76% | |
| Dimensional Fund Advisors Lp | 0.05% | 944,548 | $277,332,178 | $351,541,875 | +$74,209,697 | +26.76% | |
| Vanguard Capital Management Llc | 0.01% | 826,972 | $242,807,249 | $307,782,439 | +$64,975,190 | +26.76% | |
| Ariel Appreciation Fund | John W. Rogers Jr. | 2.39% | 816,751 | $239,806,261 | $303,978,387 | +$64,172,126 | +26.76% |
| Vanguard Portfolio Management Llc | 0.01% | 816,198 | $239,643,895 | $303,772,572 | +$64,128,677 | +26.76% | |
| Earnest Partners Llc | 0.61% | 580,752 | $170,514,595 | $216,144,279 | +$45,629,684 | +26.76% | |
| State Street Corp | 0.00% | 571,762 | $167,875,041 | $212,798,381 | +$44,923,340 | +26.76% | |
| Bank Of America Corp | 0.01% | 490,412 | $143,989,880 | $182,521,538 | +$38,531,658 | +26.76% | |
| Capital World Investors | 0.02% | 462,457 | $135,782,000 | $172,117,246 | +$36,335,246 | +26.76% | |
| Capital Research Global Investors | 0.02% | 443,483 | $130,211,044 | $165,055,503 | +$34,844,459 | +26.76% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.02% | 426,038 | $118,758,094 | $158,562,823 | +$39,804,729 | +33.52% | |
| First Pacific Advisors, Lp | 1.46% | 401,861 | $117,990,408 | $149,564,627 | +$31,574,219 | +26.76% | |
| Geode Capital Management, Llc | 0.01% | 347,575 | $102,076,657 | $129,360,464 | +$27,283,807 | +26.73% | |
| Nomura Holdings Inc | 0.41% | 328,897 | $96,567,448 | $122,408,885 | +$25,841,437 | +26.76% | |
| Ubs Group Ag | 0.01% | 308,325 | $90,527,304 | $114,752,399 | +$24,225,095 | +26.76% | |
| Sei Investments Co | 0.07% | 273,377 | $80,262,877 | $101,745,452 | +$21,482,575 | +26.77% | |
| Barclays Plc | 0.02% | 267,634 | $78,580,020 | $99,608,022 | +$21,028,002 | +26.76% | |
| Deerfield Management Company, L.P. | 0.69% | 226,070 | $66,376,413 | $84,138,733 | +$17,762,320 | +26.76% | |
| Northern Trust Corp | 0.01% | 218,285 | $64,090,660 | $81,241,311 | +$17,150,651 | +26.76% | |
| Charles Schwab Investment Management Inc | 0.01% | 195,538 | $57,411,913 | $72,775,333 | +$15,363,420 | +26.76% | |
| Aqr Capital Management Llc | 0.02% | 192,710 | $56,045,867 | $71,722,808 | +$15,676,941 | +27.97% | |
| Morgan Stanley | 0.00% | 190,285 | $55,870,130 | $70,820,271 | +$14,950,141 | +26.76% | |
| Assenagon Asset Management S.A. | 0.06% | 147,506 | $55,714,491 | $54,898,783 | -$815,708 | -1.46% | |
| Goldman Sachs Group Inc | 0.01% | 181,225 | $53,209,473 | $67,448,321 | +$14,238,848 | +26.76% | |
| Sg Americas Securities, Llc | 0.03% | 170,802 | $50,149,000 | $63,569,088 | +$13,420,088 | +26.76% | |
| Gw&K Investment Management, Llc | 0.38% | 166,905 | $49,006,000 | $62,118,703 | +$13,112,703 | +26.76% | |
| Gotham Asset Management, Llc | 0.11% | 166,262 | $48,816,186 | $61,879,391 | +$13,063,205 | +26.76% | |
| Freestone Grove Partners Lp | 0.27% | 140,113 | $41,138,578 | $52,147,256 | +$11,008,678 | +26.76% | |
| Boston Trust Walden Corp | 0.32% | 105,556 | $39,869,556 | $39,285,832 | -$583,724 | -1.46% | |
| Thompson Siegel & Walmsley Llc | 0.69% | 129,881 | $38,134,000 | $48,339,111 | +$10,205,111 | +26.76% | |
| Mangrove Partners Im, Llc | 2.45% | 127,191 | $37,344,550 | $47,337,946 | +$9,993,396 | +26.76% | |
| Hosking Partners Llp | 1.28% | 95,472 | $36,060,729 | $35,532,769 | -$527,960 | -1.46% | |
| Victory Capital Management Inc | 0.02% | 122,126 | $35,857,415 | $45,452,855 | +$9,595,440 | +26.76% | |
| Fisher Asset Management, Llc | 0.01% | 116,909 | $34,325,650 | $43,511,192 | +$9,185,542 | +26.76% | |
| Vanguard Fiduciary Trust Co | 0.01% | 114,403 | $33,589,865 | $42,578,509 | +$8,988,644 | +26.76% | |
| Bank Of New York Mellon Corp | 0.01% | 113,854 | $33,428,798 | $42,374,182 | +$8,945,384 | +26.76% | |
| Exchange Traded Concepts, Llc | 0.15% | 87,691 | $33,121,768 | $32,636,836 | -$484,932 | -1.46% | |
| Ing Groep Nv | 0.16% | 112,700 | $33,089,847 | $41,944,686 | +$8,854,839 | +26.76% | |
| Norges Bank | 0.00% | 111,580 | $32,761,004 | $41,527,844 | +$8,766,840 | +26.76% | |
| Envestnet Asset Management Inc | 0.01% | 105,449 | $30,960,831 | $39,246,009 | +$8,285,178 | +26.76% | |
| Jpmorgan Chase & Co | 0.00% | 102,605 | $30,546,009 | $38,187,529 | +$7,641,520 | +25.02% | |
| Manufacturers Life Insurance Company, The | 0.02% | 101,580 | $29,824,904 | $37,806,044 | +$7,981,140 | +26.76% | |
| Wells Fargo & Company/Mn | 0.00% | 97,500 | $28,626,839 | $36,287,550 | +$7,660,711 | +26.76% | |
| First Trust Advisors Lp | 0.02% | 94,209 | $27,660,592 | $35,062,706 | +$7,402,114 | +26.76% | |
| Jne Partners Llp | 10.68% | 88,511 | $25,987,715 | $32,942,024 | +$6,954,309 | +26.76% | |
| Allianz Asset Management Gmbh | 0.02% | 87,780 | $25,773,086 | $32,669,960 | +$6,896,874 | +26.76% | |
| Natixis Advisors, Llc | 0.03% | 82,389 | $24,190,000 | $30,663,538 | +$6,473,538 | +26.76% | |
| Jones Financial Companies Lllp | 0.01% | 78,878 | $23,725,684 | $29,356,814 | +$5,631,130 | +23.73% | |
| Mawer Investment Management Ltd. | 0.14% | 71,577 | $21,015,723 | $26,639,528 | +$5,623,805 | +26.76% |
Frequently asked questions about BIO
Who are the largest institutional holders of BIO?
The largest institutional holders of BIO reported in the latest SEC Form 13F filings include First Eagle U.S. Value, Blackrock, Inc., Dimensional Fund Advisors Lp, Vanguard Capital Management Llc, and Ariel Appreciation Fund. InsiderSet ranks institutional holders by their latest reported BIO position.
What is BIO institutional ownership?
This page tracks BIO positions reported by institutional investment managers through SEC Form 13F. BIO-RAD LABORATORIES-A (BIO) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own BIO?
InsiderSet currently tracks 395 institutional managers reporting BIO holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of BIO shareholders.
How much BIO stock do institutions own?
Institutional investment managers disclosed approximately $5.63B in BIO holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was BIO institutional ownership last updated?
The latest BIO institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional BIO holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its BIO position after the reporting date.
Are institutions buying or selling BIO?
Institutional buying and selling can be analyzed by comparing BIO positions across consecutive 13F reporting periods. InsiderSet's BIO Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View BIO ownership changes.
How has BIO institutional ownership changed over time?
InsiderSet tracks BIO institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.