BIO-RAD LABORATORIES, INC. - Class B Common Stock (BIO)
CUSIP: 090572207
Q1 2026 13F Holders as of 31 Mar 2026
- Type / Class
- Equity / Class B Common Stock
- Shares outstanding
- 5,071,025
- Total 13F shares
- 642,088
- Share change
- +257,491
- Total reported value
- $178,914,731
- Price per share
- $278.75
- Number of holders
- 96
- Value change
- +$71,628,028
- Number of buys
- 42
- Number of sells
- 28
Quarterly Holders Quick Answers
What is CUSIP 090572207?
CUSIP 090572207 identifies BIO - BIO-RAD LABORATORIES, INC. - Class B Common Stock in SEC institutional holdings data.
Need full ownership history?
Open the full security ownership history page.
Next holder-history checks
These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.
- Back to full security ownership history for the broader multi-quarter picture.
- Latest 13F filings for newly reported positions across managers.
- Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
- SEC investors directory for manager drilldown.
Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
- Previous quarter: Q4 2025
Recent filing periods for CUSIP 090572207:
Top shareholders of BIO - BIO-RAD LABORATORIES, INC. - Class B Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Alice N. Schwartz |
3/4/5
13D/G
|
Director Emeritus, 10%+ Owner |
12%
from 13D/G
|
11,862,229
mixed-class rows
|
$3,592,267,092 | — | 26 Aug 2024 | |
| Steven D. Schwartz |
3/4/5
|
10%+ Owner |
—
mixed-class rows
|
8,560,438
mixed-class rows
|
$2,584,683,847 | — | 26 Aug 2024 | |
| Norman D. Schwartz |
13D/G
3/4/5
|
Chairman & CEO, Director, 10%+ Owner |
97%
|
4,929,036
|
$1,382,052,897 | $0 | 25 Sep 2025 | |
| First Eagle Investment Management, LLC |
13F
13D/G
|
Company |
11%
from 13D/G
|
2,570,473
|
$778,827,760 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
13D/G
|
Company · The Vanguard Group - 23-1945930 |
8.4%
from 13D/G
|
1,774,263
|
$537,583,947 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
7.4%
from 13D/G
|
1,680,948
|
$509,310,344 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
21%
|
1,077,072
|
$326,343,765 | — | 31 Dec 2025 | |
| ARIEL INVESTMENTS, LLC |
13F
|
Company |
15%
|
764,672
|
$231,687,970 | — | 31 Dec 2025 | |
| EARNEST PARTNERS LLC |
13F
|
Company |
12%
|
603,594
|
$182,882,946 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
11%
|
559,604
|
$169,554,416 | — | 31 Dec 2025 | |
| Veritas Asset Management LLP |
13F
|
Company |
11%
|
543,335
|
$164,625,072 | — | 31 Dec 2025 | |
| Capital Research Global Investors |
13F
|
Company |
9.8%
|
494,472
|
$149,820,071 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
8.8%
|
445,449
|
$134,966,592 | — | 31 Dec 2025 | |
| First Pacific Advisors, LP |
13F
|
Company |
7.9%
|
401,457
|
$121,637,456 | — | 31 Dec 2025 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
7.9%
|
399,207
|
$120,955,730 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
7.8%
|
395,077
|
$119,704,381 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
6.7%
|
338,328
|
$102,531,269 | — | 31 Dec 2025 | |
| SEI INVESTMENTS CO |
13F
|
Company |
5.8%
|
291,914
|
$88,445,447 | — | 31 Dec 2025 | |
| FULLER & THALER ASSET MANAGEMENT, INC. |
13F
|
Company |
5.1%
|
259,577
|
$78,649,137 | — | 31 Dec 2025 | |
| PARNASSUS INVESTMENTS, LLC |
13F
|
Company |
5%
|
252,140
|
$76,395,899 | — | 31 Dec 2025 | |
| Boston Partners |
13F
|
Company |
4.9%
|
247,612
|
$75,037,041 | — | 31 Dec 2025 | |
| Mawer Investment Management Ltd. |
13F
|
Company |
4.6%
|
233,946
|
$70,883,299 | — | 31 Dec 2025 | |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ |
13F
|
Company |
4.5%
|
227,630
|
$68,969,614 | — | 31 Dec 2025 | |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
|
Company |
4.5%
|
226,070
|
$68,496,949 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
—
mixed-class rows
|
216,194
mixed-class rows
|
$65,504,585 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
4.3%
|
216,171
|
$65,497,651 | — | 31 Dec 2025 | |
| THOMPSON SIEGEL & WALMSLEY LLC |
13F
|
Company |
3.8%
|
191,961
|
$58,162,000 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
—
mixed-class rows
|
187,084
mixed-class rows
|
$56,682,113 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
3.6%
|
180,389
|
$54,656,063 | — | 31 Dec 2025 | |
| GW&K Investment Management, LLC |
13F
|
Company |
3.5%
|
177,083
|
$53,655,000 | — | 31 Dec 2025 | |
| WESTFIELD CAPITAL MANAGEMENT CO LP |
13F
|
Company |
3.3%
|
165,107
|
$50,025,770 | — | 31 Dec 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
2.7%
|
137,217
|
$41,575,380 | — | 31 Dec 2025 | |
| Fisher Asset Management, LLC |
13F
|
Company |
2.6%
|
131,094
|
$39,720,169 | — | 31 Dec 2025 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
2.5%
|
129,211
|
$39,444,242 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
2.6%
|
129,354
|
$39,192,950 | — | 31 Dec 2025 | |
| MANGROVE PARTNERS IM, LLC |
13F
|
Company |
2.5%
|
126,853
|
$38,435,190 | — | 31 Dec 2025 | |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE |
13F
|
Company |
2.4%
|
122,574
|
$37,145,924 | — | 31 Dec 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
2.4%
|
120,634
|
$36,541,000 | — | 31 Dec 2025 | |
| Gotham Asset Management, LLC |
13F
|
Company |
2.3%
|
117,018
|
$35,455,284 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
2.3%
|
114,194
|
$34,599,640 | — | 31 Dec 2025 | |
| FEDERATED HERMES, INC. |
13F
|
Company |
2.2%
|
113,929
|
$34,519,347 | — | 31 Dec 2025 | |
| Tikvah Management LLC |
13F
|
Company |
2.2%
|
111,084
|
$33,657,341 | — | 31 Dec 2025 | |
| Freestone Grove Partners LP |
13F
|
Company |
2.2%
|
110,524
|
$33,487,667 | — | 31 Dec 2025 | |
| Allianz Asset Management GmbH |
13F
|
Company |
2.2%
|
110,204
|
$33,390,710 | — | 31 Dec 2025 | |
| ENVESTNET ASSET MANAGEMENT INC |
13F
|
Company |
1.9%
|
94,533
|
$28,642,677 | — | 31 Dec 2025 | |
| JNE Partners LLP |
13F
|
Company |
1.8%
|
92,100
|
$27,905,379 | — | 31 Dec 2025 | |
| Boston Trust Walden Corp |
13F
|
Company |
1.8%
|
89,838
|
$27,220,016 | — | 31 Dec 2025 | |
| QVIDTVM Management LLC |
13F
|
Company |
1.6%
|
83,483
|
$25,294,514 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
1.5%
|
76,271
|
$23,110,000 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
1.5%
|
73,967
|
$22,411,262 | — | 31 Dec 2025 |
Institutional Holders of BIO-RAD LABORATORIES, INC. - Class B Common Stock (BIO) as of Q1 2026
As of 31 Mar 2026,
BIO-RAD LABORATORIES, INC. - Class B Common Stock (BIO) was held by
96 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
642,088 shares.
The largest 10 holders included
Assenagon Asset Management S.A., Boston Trust Walden Corp, Hosking Partners LLP, SG Americas Securities, LLC, EXCHANGE TRADED CONCEPTS, LLC, Marathon Asset Management Ltd, Nuveen, LLC, Retirement Systems of Alabama, NEW YORK STATE TEACHERS RETIREMENT SYSTEM, and HSBC HOLDINGS PLC.
This page lists
110
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
393
Q1 2026 holders
96
Holder diff
-297
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.