Bio-Rad Laboratories (BIO) Institutional Ownership

$368.97 +0.22 (+0.06%)

Closing price 09/11/2026 03:58 PM Eastern

Extended Trading

$370.59 +1.62 (+0.44%)

As of 09/11/2026 07:30 PM Eastern

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Current Institutional Ownership Percentage: 65.24%
Number of Institutional Buyers (last 12 months): 187
Total Institutional Inflows (last 12 months): $2.84B

Number of Institutional Sellers (last 12 months): 146
Total Institutional Outflows (last 12 months): $549.30M

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BIO Institutional Buying and Selling by Quarter

Bio-Rad Laboratories Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
9/9/2026	Tidal Investments LLC	2,878	$845K	0.0%	-7.7%	0.011%
9/9/2026	Tikvah Management LLC	68,604	$20.14M	6.1%	-29.9%	0.257%
9/9/2026	Integrated Wealth Concepts LLC	92	$27K	0.0%	N/A	0.000%
9/9/2026	Squarepoint Ops LLC	8,419	$2.47M	0.0%	N/A	0.031%
9/8/2026	Arizona State Retirement System	4,991	$1.47M	0.0%	-2.5%	0.019%
9/8/2026	Nykredit A S	403	$118K	0.0%	N/A	0.002%
8/27/2026	Corient Private Wealth LP	1,387	$407K	0.0%	-2.7%	0.005%
8/25/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	6,690	$1.96M	0.0%	N/A	0.025%
8/24/2026	California State Teachers Retirement System	6,097,105	$1.79B	0.0%	+27,700.0%	22.801%
8/22/2026	AlphaGrep UK Ltd	847	$249K	0.1%	N/A	0.003%
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8/22/2026	NWF Advisory Services Inc.	1,600	$470K	0.0%	-4.8%	0.006%
8/22/2026	Concurrent Investment Advisors LLC	1,970	$578K	0.0%	-8.9%	0.007%
8/21/2026	AXQ Capital LP	1,418	$416K	0.0%	N/A	0.005%
8/21/2026	Nykredit A S	403	$118K	0.0%	N/A	0.002%
8/20/2026	Rehmann Capital Advisory Group	954	$280K	0.0%	+8.3%	0.004%
8/20/2026	BTG Pactual Asset Management US LLC	920	$270K	0.0%	N/A	0.003%
8/19/2026	Wellington Management Group LLP	60,249	$17.69M	0.0%	N/A	0.225%
8/18/2026	Public Employees Retirement System of Ohio	5,488	$1.61M	0.0%	N/A	0.021%
8/11/2026	Westport Asset Management Inc.	3,000	$881K	0.4%	N/A	0.011%
7/8/2026	Assenagon Asset Management S.A.	233,227	$68.48M	0.1%	+57.8%	0.872%
7/7/2026	GAMMA Investing LLC	1,108	$325K	0.0%	-11.1%	0.004%
7/2/2026	Versant Capital Management Inc	90	$26K	0.0%	-54.1%	0.000%
6/16/2026	Empowered Funds LLC	2,168	$604K	0.0%	+38.0%	0.008%
5/19/2026	Bank of America Corp DE	444,957	$124.03M	0.0%	-0.1%	1.663%
5/18/2026	Amundi	38,778	$10.81M	0.0%	+1,763.4%	0.145%
5/18/2026	California State Teachers Retirement System	21,932	$6.11M	0.0%	+22.9%	0.082%
5/18/2026	Royal Bank of Canada	17,198	$4.79M	0.0%	+16.9%	0.064%
5/18/2026	Empowered Funds LLC	2,168	$604K	0.0%	+38.0%	0.008%
5/16/2026	The Manufacturers Life Insurance Company	99,720	$27.80M	0.0%	-18.6%	0.373%
5/16/2026	Quantinno Capital Management LP	33,650	$9.38M	0.0%	-7.1%	0.126%
5/16/2026	Hound Partners LLC	97,724	$27.24M	3.4%	+125.9%	0.365%
5/16/2026	Lazard Asset Management LLC	18,290	$5.10M	0.0%	N/A	0.068%
5/14/2026	Gabelli Funds LLC	28,400	$7.92M	0.1%	-16.0%	0.106%
5/14/2026	Public Employees Retirement System of Ohio	5,698	$1.59M	0.0%	-2.8%	0.021%
5/14/2026	Arrowstreet Capital Limited Partnership	15,743	$4.39M	0.0%	N/A	0.059%
5/14/2026	Sei Investments Co.	287,912	$80.26M	0.1%	-1.4%	1.076%
5/14/2026	Lido Advisors LLC	808	$225K	0.0%	N/A	0.003%
5/13/2026	Cetera Investment Advisers	7,596	$2.12M	0.0%	+0.6%	0.028%
5/13/2026	First Citizens Bank & Trust Co.	1,434	$400K	0.0%	N/A	0.005%
5/13/2026	First Trust Advisors LP	1,522	$424K	0.0%	-97.3%	0.006%
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5/12/2026	Quantedge Capital Pte Ltd	6,940	$1.94M	1.1%	-50.9%	0.026%
5/8/2026	PNC Financial Services Group Inc.	2,441	$680K	0.0%	-25.2%	0.009%
5/7/2026	Hollencrest Capital Management	100	$28K	0.0%	N/A	0.000%
5/7/2026	Dimensional Fund Advisors LP	1,089,323	$303.64M	0.1%	+1.1%	4.036%
5/7/2026	Koss Olinger Consulting LLC	3,440	$959K	0.1%	-1.4%	0.013%
5/6/2026	California Public Employees Retirement System	35,348	$9.85M	0.0%	+1.2%	0.131%
5/6/2026	Assetmark Inc.	38,989	$10.87M	0.0%	+19.0%	0.144%
5/6/2026	Allspring Global Investments Holdings LLC	85,965	$23.93M	0.0%	-33.5%	0.319%
5/5/2026	Bank of New York Mellon Corp	126,856	$35.36M	0.0%	-1.9%	0.470%
5/4/2026	State of Michigan Retirement System	4,400	$1.23M	0.0%	+2.3%	0.016%
5/4/2026	Principal Financial Group Inc.	40,614	$11.32M	0.0%	+3.8%	0.150%
5/1/2026	Fifth Third Bancorp	12,932	$3.61M	0.0%	+91.4%	0.048%
5/1/2026	Sequoia Financial Advisors LLC	750	$209K	0.0%	N/A	0.003%
5/1/2026	Kornitzer Capital Management Inc. KS	7,726	$2.15M	0.0%	+17.0%	0.029%
4/30/2026	Hsbc Holdings PLC	15,585	$4.31M	0.0%	N/A	0.058%
4/30/2026	Kestra Advisory Services LLC	1,036	$289K	0.0%	+19.2%	0.004%
4/30/2026	Oregon Public Employees Retirement Fund	3,746	$1.04M	0.0%	+2.1%	0.014%
4/27/2026	New York State Teachers Retirement System	18,372	$5.12M	0.0%	+5.0%	0.068%
4/25/2026	Boston Trust Walden Corp	93,495	$26.06M	0.2%	+4.1%	0.346%
4/23/2026	Inspire Investing LLC	1,217	$339K	0.0%	+12.4%	0.005%
4/22/2026	Patriot Financial Group Insurance Agency LLC	2,532	$706K	0.0%	N/A	0.009%
4/22/2026	Skylands Capital LLC	5,650	$1.58M	0.2%	+56.9%	0.021%
4/22/2026	Pictet Asset Management Holding SA	2,920	$814K	0.0%	+13.2%	0.011%
4/22/2026	Sterling Capital Management LLC	621	$173K	0.0%	-43.3%	0.002%
4/21/2026	Louisiana State Employees Retirement System	5,300	$1.48M	0.0%	N/A	0.020%
4/20/2026	William B. Walkup & Associates Inc.	1,902	$530K	0.3%	+2.6%	0.007%
4/20/2026	Blue Trust Inc.	1,553	$433K	0.0%	+8.6%	0.006%
4/20/2026	OP Asset Management Ltd	6,552	$1.83M	0.0%	N/A	0.024%
4/20/2026	Assenagon Asset Management S.A.	147,834	$41.21M	0.1%	+6,586.3%	0.548%
4/16/2026	SG Americas Securities LLC	66,985	$18.67M	0.0%	+253.3%	0.248%
4/16/2026	Diversified Trust Co	4,897	$1.37M	0.0%	-39.8%	0.018%
3/17/2026	Rockefeller Capital Management L.P.	1,047	$317K	0.0%	-32.4%	0.004%
3/9/2026	Corient Private Wealth LLC	1,864	$565K	0.0%	+30.3%	0.007%
3/4/2026	Rehmann Capital Advisory Group	660	$201K	0.0%	N/A	0.002%
2/24/2026	Pacer Advisors Inc.	2,895	$877K	0.0%	-21.8%	0.011%
2/23/2026	Virtu Financial LLC	2,218	$672K	0.0%	N/A	0.008%
2/19/2026	T. Rowe Price Investment Management Inc.	58,633	$17.77M	0.0%	-10.1%	0.217%
2/19/2026	Invesco Ltd.	35,060	$10.62M	0.0%	-2.4%	0.130%
2/19/2026	Corient Private Wealth LLC	66,792	$20.24M	0.0%	+4,570.8%	0.248%
2/18/2026	Vident Advisory LLC	2,943	$892K	0.0%	N/A	0.011%
2/18/2026	State of Tennessee Department of Treasury	3,796	$1.12M	0.0%	+35.1%	0.014%
2/18/2026	SkyView Investment Advisors LLC	1,948	$590K	0.1%	-2.6%	0.007%
2/18/2026	Fuller & Thaler Asset Management Inc.	259,577	$78.65M	0.3%	+9.1%	0.962%
2/18/2026	Empowered Funds LLC	1,571	$476K	0.0%	+5.2%	0.006%
2/18/2026	XTX Topco Ltd	16,108	$4.88M	0.1%	N/A	0.060%
2/18/2026	one8zero8 LLC	674	$204K	0.0%	N/A	0.002%
2/18/2026	Moore Capital Management LP	50,000	$15.15M	0.2%	-9.1%	0.185%
2/18/2026	Man Group plc	6,251	$1.89M	0.0%	-81.0%	0.023%
2/18/2026	Inspire Investing LLC	1,083	$328K	0.0%	-4.8%	0.004%
2/18/2026	Gotham Asset Management LLC	117,018	$35.46M	0.1%	-6.1%	0.434%
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2/18/2026	First Manhattan CO. LLC.	1,915	$580K	0.0%	-9.5%	0.007%
2/18/2026	AYAL Capital Advisors Ltd	20,000	$6.06M	2.1%	+14.3%	0.074%
2/18/2026	Align Financial LLC	9,999	$3.03M	0.0%	N/A	0.037%
2/17/2026	Freestone Grove Partners LP	110,524	$33.49M	0.2%	N/A	0.410%
2/17/2026	Schonfeld Strategic Advisors LLC	1,971	$597K	0.0%	-13.2%	0.007%
2/17/2026	AQR Capital Management LLC	40,195	$12.18M	0.0%	+25.7%	0.149%
2/17/2026	Hound Partners LLC	43,268	$13.11M	1.8%	-58.4%	0.160%
2/17/2026	Cetera Investment Advisers	7,548	$2.29M	0.0%	-6.4%	0.028%
2/17/2026	Quantedge Capital Pte Ltd	14,140	$4.28M	2.0%	-45.2%	0.052%
2/17/2026	Veritas Asset Management LLP	543,335	$164.63M	1.7%	-35.6%	2.014%

BIO Institutional Ownership - Frequently Asked Questions

During the previous two years, 447 institutional investors and hedge funds held shares of Bio-Rad Laboratories. The most heavily invested institutionals were California State Teachers Retirement System ($1.79B), First Eagle Investment Management LLC ($778.83M), Vanguard Group Inc. ($537.58M), Wealthfront Advisers LLC ($342.69M), Dimensional Fund Advisors LP ($303.64M), Ariel Investments LLC ($197.55M), and Earnest Partners LLC ($182.88M).Learn more on Bio-Rad Laboratories' institutional investors.

65.24% of Bio-Rad Laboratories' stock is owned by institutional investors. Learn more on BIO's institutional investor holdings.

Of the 364 institutional investors that purchased Bio-Rad Laboratories' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: California State Teachers Retirement System ($6.08M), Wealthfront Advisers LLC ($1.04M), First Eagle Investment Management LLC ($1.00M), Van ECK Associates Corp ($644.53K), Capital Research Global Investors ($494.47K), Ariel Investments LLC ($439.93K), and Bank of America Corp DE ($403.62K).

Institutional investors have bought a total of 9,733,326 shares in the last 24 months. This purchase volume represents approximately $2.84B in transactions.

Of the 146 institutional investors that sold Bio-Rad Laboratories' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Veritas Asset Management LLP ($319.81K), Millennium Management LLC ($227.39K), Royal Bank of Canada ($161.38K), Hound Partners LLC ($138.67K), Man Group plc ($74.04K), Vanguard Group Inc. ($72.28K), and T. Rowe Price Investment Management Inc. ($69.61K).

Institutional investors have sold a total of 1,872,652 shares in the last 24 months. This volume of shares sold represents approximately $549.30M in transactions.

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Institutional ownership data for NYSE:BIO is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.

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Bio-Rad Laboratories (BIO) Institutional Ownership

BIO Institutional Buying and Selling by Quarter

Bio-Rad Laboratories Major Shareholders & Ownership History

BIO Institutional Ownership - Frequently Asked Questions

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Bio-Rad Laboratories (BIO) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Bio-Rad Laboratories (NYSE:BIO)

BIO Institutional Buying and Selling by Quarter

Bio-Rad Laboratories Major Shareholders & Ownership History

BIO Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of BIO shares?

What percentage of Bio-Rad Laboratories' stock is owned by institutional investors?

Which institutional investors have been buying Bio-Rad Laboratories' stock?

How much institutional buying is happening at Bio-Rad Laboratories?

Which of Bio-Rad Laboratories' major shareholders have been selling company stock?

How much institutional selling is happening at Bio-Rad Laboratories?

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