Company · Ownership research

BIO-RAD LABORATORIES, INC. BIO

CIK 0000012208 · CUSIP 090572207

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 090572207 (BIO), not CUSIP 090572108 (BIO.B), CUSIP 090572907 (BIO), CUSIP 090572957 (BIO), and does not merge CUSIPs.

This page lists the top 20 of 438 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$492.41M 2,021,720 shares	0.01%	+10.07K(+0.50%)Added	SEC filing ↗ May 2, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$465.72M 1,912,157 shares	0.01%	-7.65K(-0.40%)Reduced	SEC filing ↗ May 9, 2025	▾
03	First Eagle Investment Management, LLC CIK 1325447 · View history	$381.46M 1,566,190 shares	0.80%	+852.68K(+119.50%)Added	SEC filing ↗ May 12, 2025	▾
04	Veritas Asset Management LLP CIK 1541448 · View history	$222.40M 913,122 shares	2.25%	-63.70K(-6.50%)Reduced	SEC filing ↗ May 15, 2025	▾
05	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$213.61M 877,040 shares	0.05%	+130.92K(+17.50%)Added	SEC filing ↗ May 13, 2025	▾
06	ARIEL INVESTMENTS, LLC CIK 936753 · View history	$176.50M 724,660 shares	2.07%	+164.14K(+29.30%)Added	SEC filing ↗ May 15, 2025	▾
07	STATE STREET CORP CIK 93751 · View history	$169.16M 694,520 shares	0.01%	+4.36K(+0.60%)Added	SEC filing ↗ May 15, 2025	▾
08	EARNEST PARTNERS LLC CIK 1102578 · View history	$146.04M 599,621 shares	0.70%	-18.43K(-3.00%)Reduced	SEC filing ↗ May 14, 2025	▾
09	VAN ECK ASSOCIATES CORP CIK 869178 · View history	$145.34M 596,730 shares	0.19%	-126.74K(-17.50%)Reduced	SEC filing ↗ May 15, 2025	▾
10	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$104.86M 430,539 shares	0.01%	+3.25K(+0.80%)Added	SEC filing ↗ May 15, 2025	▾
11	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC CIK 861177 · View history	$93.24M 382,807 shares	0.02%	-5.82K(-1.50%)Reduced	SEC filing ↗ May 19, 2025	▾
12	First Pacific Advisors, LP CIK 1377581 · View history	$90.74M 372,555 shares	1.45%	+214.71K(+136.00%)Added	SEC filing ↗ May 6, 2025	▾
13	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$83.35M 342,943 shares	0.01%	+20.97K(+6.50%)Added	SEC filing ↗ May 13, 2025	▾
14	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$81.85M 336,052 shares	0.08%	-43.02K(-11.30%)Reduced	SEC filing ↗ May 15, 2025	▾
15	SOUTHEASTERN ASSET MANAGEMENT INC/TN/ CIK 807985 · View history	$78.87M 323,805 shares	4.20%	+15.34K(+5.00%)Added	SEC filing ↗ May 15, 2025	▾
16	PARNASSUS INVESTMENTS, LLC CIK 948669 · View history	$77.48M 318,111 shares	0.19%	+7.24K(+2.30%)Added	SEC filing ↗ May 15, 2025	▾
17	Mawer Investment Management Ltd. CIK 1538449 · View history	$71.82M 294,879 shares	0.35%	+37.95K(+14.80%)Added	SEC filing ↗ May 7, 2025	▾
18	THOMPSON SIEGEL & WALMSLEY LLC CIK 1008322 · View history	$68.07M 279,489 shares	1.16%	+21.34K(+8.30%)Added	SEC filing ↗ May 9, 2025	▾
19	Select Equity Group, L.P. CIK 1592643 · View history	$64.59M 265,180 shares	0.29%	-195.48K(-42.40%)Reduced	SEC filing ↗ May 15, 2025	▾
20	NORTHERN TRUST CORP CIK 73124 · View history	$63.60M 261,122 shares	0.01%	+254(+0.10%)Added	SEC filing ↗ May 13, 2025	▾

Showing 20 / 438 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

438

Cancelled or null records excluded

Disclosed shares

19,477,767

Not deduplicated across managers

Disclosed value

$4.71B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

BIO-RAD LABORATORIES, INC. · Q1 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.