Bio-Rad Laboratories, Inc. (BIO) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

27,281,000Shares Outstanding

19,675,149Shares held by institutions

$6,014,102,795Value of institutional holdings

72.12%Institutional ownership %

0.99%Shares Changed QoQ

385No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Bio-Rad Laboratories, Inc. (NYSE:BIO) showed up in the 13F filings of 385 institutional investors as of December 2025.

Collectively, these holders controlled 72.0% of Bio-Rad Laboratories's outstanding shares in December 2025, down from 74.3% in September 2025.
Their total shares held in BIO increased 1.18% from the prior quarter, while the number of investors in Bio-Rad Laboratories decreased 14.44% year over year.
Of these 385 funds, 159 grew their exposure to Bio-Rad Laboratories, 144 cut back, and 82 maintained positions.
Institutional investors collectively held 19.64Mn shares in Bio-Rad Laboratories as of December 2025, up by 229.81K shares quarter on quarter, and up 310.28K shares year over year.
As of December 31, 2025, ROWLANDMILLER & PARTNERS.ADV held the largest stake in Bio-Rad Laboratories with 565 shares, accounting for 0.0% of total shares outstanding.
Top purchasers of BIO stock for the quarter ending December 2025 included Investors Research Corp (4).
Per Business Quant, the top 3 investors in BIO for the quarter ending December 2025 include ROWLANDMILLER & PARTNERS.ADV (565), Ares Financial Consulting, LLC (5), Investors Research Corp (4).

385 Institutional Holders

19,675,149 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
First Eagle Investment Management, LLC	31 Dec, 2025	2,570,473	50,154	1.99%	$778,827,760.00
VANGUARD GROUP INC	31 Dec, 2025	1,774,263	-19,274	-1.07%	$537,583,947.00
BlackRock, Inc.	31 Dec, 2025	1,680,948	-14,901	-0.88%	$509,310,344.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	1,077,072	14,134	1.33%	$326,343,765.00
ARIEL INVESTMENTS, LLC	31 Dec, 2025	764,672	-44,808	-5.54%	$231,687,970.00
EARNEST PARTNERS LLC	31 Dec, 2025	603,594	-5,690	-0.93%	$182,882,946.00
State Street Corp	31 Dec, 2025	559,604	-11,995	-2.10%	$169,554,416.00
Veritas Asset Management LLP	31 Dec, 2025	543,335	-300,704	-35.63%	$164,625,072.00
FULLER & THALER ASSET MANAGEMENT, INC.	31 Dec, 2025	519,154	281,251	118.22%	$157,298,274.00
Capital Research Global Investors	31 Dec, 2025	494,472	76,117	18.19%	$149,820,071.00
Bank Of America Corp /De/	31 Dec, 2025	445,449	-474,325	-51.57%	$134,966,592.00
First Pacific Advisors, LP	31 Dec, 2025	401,457	7,043	1.79%	$121,637,456.00
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	31 Dec, 2025	399,207	390,593	4,534.40%	$120,955,730.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	395,077	-2,094	-0.53%	$119,704,381.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	338,328	-11,888	-3.39%	$102,531,269.00
Sei Investments Co	31 Dec, 2025	291,914	9,445	3.34%	$88,445,447.00
PARNASSUS INVESTMENTS, LLC	31 Dec, 2025	252,140	-63,188	-20.04%	$76,395,899.00
Boston Partners	31 Dec, 2025	247,612	247,612	0.00%	$75,037,041.00
Mawer Investment Management Ltd.	31 Dec, 2025	233,946	-9,522	-3.91%	$70,883,299.00
SOUTHEASTERN ASSET MANAGEMENT INC/TN/	31 Dec, 2025	227,630	-9,624	-4.06%	$68,969,614.00

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