BIO-RAD LABORATORIES, INC. (BIO) — Institutional Holders, Q2 2026

403 institutional investment managers reported a BIO position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $5.7B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← BIO stock profile

BIO in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

115

Trimmed

154

Sold out

Biggest buyers

GOLDMAN SACHS GROUPAdded · +128,185 sh+$37.6M
NOMURAAdded · +111,555 sh+$32.8M
Neuberger Berman GroupAdded · +108,783 sh+$31.9M
SG Americas SecuritiesAdded · +103,817 sh+$30.5M
VICTORY CAPITAL MANAGEMENTAdded · +103,487 sh+$30.4M

Biggest sellers

MASSACHUSETTS FINANCIAL SERVICESTrimmed · -388,300 sh-$114.0M
PARNASSUS INVESTMENTSSold out · -254,305 sh-$74.7M
SOUTHEASTERN ASSET MANAGEMENTSold out · -162,804 sh-$47.8M
DIMENSIONAL FUND ADVISORSTrimmed · -144,775 sh-$42.5M
CIBC Bancorp USASold out · -120,120 sh-$35.3M

BIO 13F holders ranked 1–100 of 403

Institutional investors reporting a position in BIO-RAD LABORATORIES, INC. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	First Eagle Investment Management#1 · 2,606,219 sh	2,606,219	$765.2M	1.28%	+0.1%
2	BlackRock#2 · 1,698,929 sh	1,698,929	$498.8M	<0.01%	+1.1%
3	DIMENSIONAL FUND ADVISORS#3 · 944,548 sh	944,548	$277.3M	0.05%	-13.3%
4	VANGUARD CAPITAL MANAGEMENT#4 · 826,972 sh	826,972	$242.8M	<0.01%	-0.5%
5	ARIEL INVESTMENTS#5 · 816,751 sh	816,751	$239.8M	2.39%	+3.9%
6	VANGUARD PORTFOLIO MANAGEMENT#6 · 816,198 sh	816,198	$239.6M	0.01%	-1.6%
7	EARNEST PARTNERS#7 · 580,752 sh	580,752	$170.5M	0.61%	-1.4%
8	STATE STREET#8 · 571,762 sh	571,762	$167.9M	<0.01%	+2.2%
9	BANK OF AMERICA#9 · 490,412 sh	490,412	$144.0M	<0.01%	+10.2%
10	Capital World Investors#10 · 462,457 sh	462,457	$135.8M	0.02%	+2.8%
11	Capital Research Global Investors#11 · 443,483 sh	443,483	$130.2M	0.02%	+15.0%
12	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#12 · 418,884 sh	418,884	$123.0M	0.02%	-1.7%
13	First Pacific Advisors#13 · 401,861 sh	401,861	$118.0M	1.46%	-1.3%
14	GEODE CAPITAL MANAGEMENT#14 · 347,575 sh	347,575	$102.1M	<0.01%	-4.7%
15	NOMURA#15 · 328,897 sh	328,897	$96.6M	0.11%	+51.3%
16	UBS Group AG#16 · 308,338 sh	308,338	$90.5M	0.01%	-13.0%
17	SEI INVESTMENTS#17 · 273,377 sh	273,377	$80.3M	0.07%	-5.0%
18	BARCLAYS PLC#18 · 267,634 sh	267,634	$78.6M	0.02%	-4.0%
19	Assenagon Asset Management S.A.#19 · 233,227 sh	233,227	$68.5M	—	+57.8%
20	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)#20 · 226,070 sh	226,070	$66.4M	0.69%	0.0%
21	NORTHERN#21 · 218,285 sh	218,285	$64.1M	<0.01%	-0.1%
22	CHARLES SCHWAB INVESTMENT MANAGEMENT#22 · 195,538 sh	195,538	$57.4M	<0.01%	-0.5%
23	FRANKLIN RESOURCES#23 · 193,682 sh	193,682	$56.9M	0.01%	+13.7%
24	MORGAN STANLEY#24 · 190,997 sh	190,997	$56.1M	<0.01%	-30.5%
25	AQR CAPITAL MANAGEMENT#25 · 192,711 sh	192,711	$56.0M	0.02%	+103.8%
26	GOLDMAN SACHS GROUP#26 · 181,225 sh	181,225	$53.2M	<0.01%	+241.7%
27	SG Americas Securities#27 · 170,802 sh	170,802	$50.1M	0.03%	+155.0%
28	GW&K Investment Management#28 · 166,905 sh	166,905	$49.0M	0.38%	-4.5%
29	Gotham Asset Management#29 · 166,262 sh	166,262	$48.8M	0.11%	+9.1%
30	Freestone Grove Partners#30 · 140,113 sh	140,113	$41.1M	0.26%	-5.1%
31	THOMPSON SIEGEL & WALMSLEY#31 · 129,881 sh	129,881	$38.1M	0.68%	-26.4%
32	MANGROVE PARTNERS IM#32 · 127,191 sh	127,191	$37.3M	2.45%	+0.3%
33	VICTORY CAPITAL MANAGEMENT#33 · 122,126 sh	122,126	$35.9M	0.02%	+555.2%
34	Fisher Asset Management#34 · 116,909 sh	116,909	$34.3M	0.01%	-1.5%
35	VANGUARD FIDUCIARY#35 · 114,403 sh	114,403	$33.6M	<0.01%	+0.7%
36	Bank of New York Mellon#36 · 113,854 sh	113,854	$33.4M	<0.01%	-10.2%
37	ING GROEP NV#37 · 112,700 sh	112,700	$33.1M	0.16%	+25.2%
38	Neuberger Berman Group#38 · 111,812 sh	111,812	$32.8M	0.02%	+3591.4%
39	NORGES BANK#39 · 111,580 sh	111,580	$32.8M	<0.01%	—
40	Boston Walden#40 · 111,167 sh	111,167	$32.6M	0.25%	+18.9%
41	ENVESTNET ASSET MANAGEMENT#41 · 105,449 sh	105,449	$31.0M	<0.01%	+0.1%
42	JPMORGAN CHASE#42 · 102,605 sh	102,605	$30.5M	<0.01%	+3.2%
43	MANUFACTURERS LIFE INSURANCE COMPANY, THE#43 · 101,580 sh	101,580	$29.8M	0.02%	+1.9%
44	WELLS FARGO & COMPANY#44 · 97,670 sh	97,670	$28.7M	<0.01%	+368.7%
45	Hosking Partners LLP#45 · 94,430 sh	94,430	$27.7M	—	+36.8%
46	FIRST ADVISORS#46 · 94,209 sh	94,209	$27.7M	0.02%	+6089.8%
47	JNE Partners LLP#47 · 88,511 sh	88,511	$26.0M	10.69%	-3.9%
48	Allianz Asset Management GmbH#48 · 87,780 sh	87,780	$25.8M	0.02%	-20.4%
49	NATIXIS ADVISORS#49 · 82,389 sh	82,389	$24.2M	0.03%	+9.8%
50	JONES FINANCIAL COMPANIES LLLP#50 · 78,878 sh	78,878	$23.7M	<0.01%	+9.6%
51	EXCHANGE TRADED CONCEPTS#51 · 72,116 sh	72,116	$21.2M	0.10%	+23.2%
52	Mawer Investment Management Ltd.#52 · 71,577 sh	71,577	$21.0M	0.14%	-62.1%
53	Allspring Global Investments#53 · 69,598 sh	69,598	$20.7M	0.03%	-19.0%
54	Tikvah Management#54 · 68,604 sh	68,604	$20.1M	6.12%	-29.9%
55	QVIDTVM Management#55 · 66,243 sh	66,243	$19.4M	25.39%	-20.9%
56	NATIONAL BANK OF CANADA#56 · 65,000 sh	65,000	$19.1M	0.01%	-27.8%
57	CITADEL ADVISORS#57 · 60,819 sh	60,819	$17.9M	<0.01%	-59.1%
58	WELLINGTON MANAGEMENT GROUP LLP#58 · 60,249 sh	60,249	$17.7M	<0.01%	New
59	MILLENNIUM MANAGEMENT#59 · 59,895 sh	59,895	$17.6M	<0.01%	+1718.3%
60	Arnhold#60 · 55,568 sh	55,568	$16.3M	—	+29.5%
61	RHUMBLINE ADVISERS#61 · 45,140 sh	45,140	$13.3M	0.01%	-1.9%
62	ASSETMARK#62 · 44,277 sh	44,277	$13.0M	—	+13.6%
63	Portolan Capital Management#63 · 42,620 sh	42,620	$12.5M	0.47%	+200.7%
64	Marathon Asset Management Ltd#64 · 41,975 sh	41,975	$12.3M	—	-21.8%
65	PRINCIPAL FINANCIAL GROUP#65 · 40,905 sh	40,905	$12.0M	<0.01%	+0.7%
66	BANK OF NOVA SCOTIA#66 · 39,708 sh	39,708	$11.7M	0.02%	New
67	RAYMOND JAMES FINANCIAL#67 · 37,558 sh	37,558	$11.0M	<0.01%	+4.6%
68	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#68 · 36,941 sh	36,941	$10.8M	<0.01%	+4.5%
69	Legal & General Group Plc#69 · 36,847 sh	36,847	$10.8M	<0.01%	+1.7%
70	TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY#70 · 36,444 sh	36,444	$10.7M	0.07%	0.0%
71	Swiss National Bank#71 · 36,320 sh	36,320	$10.7M	<0.01%	-1.5%
72	Invesco Ltd.#72 · 36,283 sh	36,283	$10.7M	<0.01%	-1.5%
73	SECTOR GAMMA AS#73 · 33,350 sh	33,350	$9.8M	2.12%	+40.4%
74	Quantinno Capital Management#74 · 30,004 sh	30,004	$8.8M	0.01%	-10.8%
75	Nuveen#75 · 29,493 sh	29,493	$8.7M	<0.01%	+0.3%
76	Palliser Capital (UK) Ltd#76 · 27,954 sh	27,954	$8.2M	4.41%	New
77	GAMCO INVESTORS, ET AL#77 · 26,750 sh	26,750	$7.9M	0.07%	0.0%
78	GABELLI FUNDS#78 · 25,900 sh	25,900	$7.6M	0.05%	-8.8%
79	TUDOR INVESTMENT ET AL#79 · 25,000 sh	25,000	$7.3M	0.01%	+384.4%
80	WINSLOW ASSET MANAGEMENT#80 · 24,773 sh	24,773	$7.3M	1.26%	+2.5%
81	Concentric Capital Strategies#81 · 23,692 sh	23,692	$7.0M	0.39%	New
82	Hound Partners#82 · 22,481 sh	22,481	$6.6M	0.76%	-77.0%
83	ALLIANCEBERNSTEIN L.P.#83 · 22,502 sh	22,502	$6.3M	<0.01%	-8.1%
84	ACADIAN ASSET MANAGEMENT#84 · 21,359 sh	21,359	$6.3M	<0.01%	-79.2%
85	PRICE T ROWE ASSOCIATES#85 · 19,287 sh	19,287	$5.7M	<0.01%	-74.0%
86	D. E. Shaw#86 · 19,256 sh	19,256	$5.7M	<0.01%	+136.4%
87	MARSHALL WACE, LLP#87 · 18,980 sh	18,980	$5.6M	<0.01%	-42.9%
88	Retirement Systems of Alabama#88 · 18,628 sh	18,628	$5.5M	0.02%	-16.4%
89	BNP PARIBAS FINANCIAL MARKETS#89 · 18,205 sh	18,205	$5.3M	<0.01%	-30.8%
90	VANGUARD ASSET MANAGEMENT, Ltd#90 · 17,841 sh	17,841	$5.2M	<0.01%	+9.0%
91	Russell Investments Group, Ltd.#91 · 17,435 sh	17,435	$5.1M	<0.01%	+12.5%
92	HSBC PLC#92 · 17,582 sh	17,582	$5.1M	<0.01%	+12.8%
93	AMERIPRISE FINANCIAL#93 · 16,649 sh	16,649	$4.9M	<0.01%	-7.6%
94	NEW YORK STATE TEACHERS RETIREMENT SYSTEM#94 · 16,464 sh	16,464	$4.8M	—	-10.4%
95	ROYAL BANK OF CANADA#95 · 16,448 sh	16,448	$4.8M	<0.01%	-4.4%
96	AYAL Capital Advisors Ltd#96 · 16,333 sh	16,333	$4.8M	1.30%	New
97	STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#97 · 15,663 sh	15,663	$4.6M	<0.01%	-2.1%
98	Amundi#98 · 15,057 sh	15,057	$4.4M	<0.01%	-61.2%
99	LPL Financial#99 · 15,011 sh	15,011	$4.4M	<0.01%	-7.6%
100	Longaeva Partners L.P.#100 · 14,639 sh	14,639	$4.3M	0.09%	New

Funds that sold out of BIO in Q2 2026 (52)

Held BIO at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held BIO in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
PARNASSUS INVESTMENTS254,305 sh	254,305	$70.9M
SOUTHEASTERN ASSET MANAGEMENT162,804 sh	162,804	$45.4M
CIBC Bancorp USA120,120 sh	120,120	$33.5M
Select Equity Group, L.P.48,436 sh	48,436	$13.5M
HRT FINANCIAL46,556 sh	46,556	$13.0M
Almitas Capital30,254 sh	30,254	$8.4M
VAN ECK ASSOCIATES19,450 sh	19,450	$5.4M
LAZARD ASSET MANAGEMENT18,290 sh	18,290	$5.1M
TD ASSET MANAGEMENT9,780 sh	9,780	$2.7M
Oak Thistle9,320 sh	9,320	$2.6M
CenterBook Partners7,824 sh	7,824	$2.2M
NATIXIS6,970 sh	6,970	$1.9M
Quantedge Capital Pte Ltd6,940 sh	6,940	$1.9M
OP Asset Management Ltd6,552 sh	6,552	$1.8M
Koss-Olinger Consulting3,440 sh	3,440	$958.9K
Alamea Verwaltungs GmbH2,164 sh	2,164	$603.2K
Blackstone2,162 sh	2,162	$602.7K
SkyView Investment Advisors1,936 sh	1,936	$540.0K
C2C Wealth Management1,715 sh	1,715	$478.1K
Bridgewater Associates1,684 sh	1,684	$469.4K
AIGEN INVESTMENT MANAGEMENT1,614 sh	1,614	$449.9K
BOOTHBAY FUND MANAGEMENT1,552 sh	1,552	$432.6K
Bridgefront Capital1,456 sh	1,456	$405.9K
Ethic1,339 sh	1,339	$373.2K
Sagewood Asset Management1,247 sh	1,247	$347.6K
GUGGENHEIM CAPITAL956 sh	956	$266.5K
Mystic Asset Management900 sh	900	$250.9K
UNITED CAPITAL FINANCIAL ADVISORS846 sh	846	$235.8K
Lido Advisors808 sh	808	$225.2K
Beverly Hills Private Wealth803 sh	803	$223.8K
OMERS ADMINISTRATION765 sh	765	$213.2K
Sequoia Financial Advisors750 sh	750	$209.1K
CIBC Asset Management725 sh	725	$202.1K
Aster Capital Management (DIFC) Ltd354 sh	354	$86.2K
State of Wyoming273 sh	273	$76.1K
Addison Advisors200 sh	200	$55.8K
STOREBRAND ASSET MANAGEMENT AS137 sh	137	$38.2K
HOLLENCREST SECURITIES100 sh	100	$27.9K
Root Financial Partners77 sh	77	$21.5K
Financial Freedom33 sh	33	$9.2K
HARBOR INVESTMENT ADVISORY26 sh	26	$7.2K
Bravera Wealth14 sh	14	$3.9K
Advisory Services Network13 sh	13	$3.6K
Western Wealth Management9 sh	9	$2.5K
Whipplewood Advisors8 sh	8	$2.2K
Raleigh Capital Management6 sh	6	$1.7K
Kilter Group4 sh	4	$1.1K
ST GERMAIN D J4 sh	4	$1.1K
Rossby Financial, LCC4 sh	4	$1.1K
TWIN PEAKS WEALTH ADVISORS3 sh	3	$836.00
Westfuller Advisors2 sh	2	$558.00
CURIO WEALTH1 sh	1	$279.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.