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 387 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	First Eagle Investment Management, LLC CIK 1325447 · View history	$607.48M 2,517,313 shares	1.22%	+951.12K(+60.70%)Added	SEC filing ↗ Aug 6, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$445.61M 1,846,543 shares	0.01%	-65.61K(-3.40%)Reduced	SEC filing ↗ Aug 11, 2025	▾
03	BlackRock, Inc. CIK 2012383 · View history	$425.36M 1,762,659 shares	0.01%	-259.06K(-12.80%)Reduced	SEC filing ↗ Aug 12, 2025	▾
04	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$241.22M 999,568 shares	0.06%	+122.53K(+14.00%)Added	SEC filing ↗ Aug 12, 2025	▾
05	Veritas Asset Management LLP CIK 1541448 · View history	$208.29M 863,141 shares	2.08%	-49.98K(-5.50%)Reduced	SEC filing ↗ Aug 7, 2025	▾
06	ARIEL INVESTMENTS, LLC CIK 936753 · View history	$197.55M 818,624 shares	2.24%	+93.96K(+13.00%)Added	SEC filing ↗ Aug 14, 2025	▾
07	EARNEST PARTNERS LLC CIK 1102578 · View history	$146.21M 605,886 shares	0.66%	+6.26K(+1.00%)Added	SEC filing ↗ Aug 14, 2025	▾
08	STATE STREET CORP CIK 93751 · View history	$141.02M 584,366 shares	0.01%	-110.15K(-15.90%)Reduced	SEC filing ↗ Aug 14, 2025	▾
09	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$109.11M 452,133 shares	0.01%	+21.59K(+5.00%)Added	SEC filing ↗ Aug 14, 2025	▾
10	First Pacific Advisors, LP CIK 1377581 · View history	$93.38M 386,949 shares	1.34%	+14.39K(+3.90%)Added	SEC filing ↗ Aug 1, 2025	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$80.65M 334,137 shares	0.01%	-8.81K(-2.60%)Reduced	SEC filing ↗ Aug 8, 2025	▾
12	PARNASSUS INVESTMENTS, LLC CIK 948669 · View history	$76.55M 317,218 shares	0.18%	-893(-0.30%)Reduced	SEC filing ↗ Aug 6, 2025	▾
13	SOUTHEASTERN ASSET MANAGEMENT INC/TN/ CIK 807985 · View history	$76.08M 315,285 shares	3.84%	-8.52K(-2.60%)Reduced	SEC filing ↗ Aug 14, 2025	▾
14	THOMPSON SIEGEL & WALMSLEY LLC CIK 1008322 · View history	$73.88M 306,132 shares	1.25%	+26.64K(+9.50%)Added	SEC filing ↗ Aug 6, 2025	▾
15	Mawer Investment Management Ltd. CIK 1538449 · View history	$64.46M 267,108 shares	0.33%	-27.77K(-9.40%)Reduced	SEC filing ↗ Aug 7, 2025	▾
16	SEI INVESTMENTS CO CIK 350894 · View history	$64.04M 265,385 shares	0.07%	+11.82K(+4.70%)Added	SEC filing ↗ Aug 14, 2025	▾
17	Select Equity Group, L.P. CIK 1592643 · View history	$61.78M 255,989 shares	0.26%	-9.19K(-3.50%)Reduced	SEC filing ↗ Aug 14, 2025	▾
18	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$60.78M 251,848 shares	0.05%	-84.20K(-25.10%)Reduced	SEC filing ↗ Aug 14, 2025	▾
19	NORTHERN TRUST CORP CIK 73124 · View history	$54.66M 226,505 shares	0.01%	-34.62K(-13.30%)Reduced	SEC filing ↗ Aug 13, 2025	▾
20	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) CIK 1009258 · View history	$54.56M 226,070 shares	0.99%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾

Showing 20 / 387 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

387

Cancelled or null records excluded

Disclosed shares

19,194,091

Not deduplicated across managers

Disclosed value

$4.63B

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. · Q2 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.