Latest Period
Q1 2026
Security Snapshot
BIO-RAD LABORATORIES, INC. - Class B Common Stock (BIO) Institutional Ownership
CUSIP: 090572207
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
389
Shares (Excl. Options)
19,975,901
Price
$278.75
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- Security type / class
- Equity / Class B Common Stock
- Symbol
- BIO on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 19,975,901
- Total 13F value
- $5,566,603,166
- Portfolio coverage rank
- 0.01%
- Share change
- +641,501
- Value change
- +$143,015,148
- Number of holders
- 389
- Shares outstanding
- 5,071,025
- SEC-reported price per share
- $243.51
- Insider filing price
- $243.51
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- BIO - BIO-RAD LABORATORIES, INC. - Class B Common Stock is tracked under CUSIP 090572207.
- 389 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 395 to 389 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $5,876,844,404 to $5,566,603,166.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 389 institutions filings for Q1 2026.
Security key
090572207
Latest holder period
Q1 2026
13F holders
389
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
BIO full holder history
BIO-RAD LABORATORIES, INC. SEC filings
BIO-RAD LABORATORIES, INC. company facts
BIO-RAD LABORATORIES, INC. insider transactions
BIO-RAD LABORATORIES, INC. 13D/G history
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 090572207:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
BIO
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| SCHWARTZ NORMAN D | 97% | $1,382,052,897 | 4,929,036 | Norman D. Schwartz | 25 Sep 2025 | |||
| SCHWARTZ ALICE N | 12% | $659,303,856 | 2,732,073 | Alice N. Schwartz | 01 May 2025 | |||
| First Eagle Investment Management, LLC | 11% | +14% | $657,060,173 | +$60,827,513 | 2,528,321 | +10% | First Eagle Investment Management, LLC | 30 Jun 2025 |
| VANGUARD GROUP INC | 8.4% | $462,850,693 | 1,907,640 | The Vanguard Group - 23-1945930 | 30 Sep 2024 | |||
| BlackRock, Inc. | 7.4% | $453,705,832 | 1,618,123 | BlackRock, Inc. | 30 Sep 2025 |
As of 31 Mar 2026, 389 institutional investors reported holding 19,975,901 shares of BIO-RAD LABORATORIES, INC. - Class B Common Stock (BIO). This represents 394% of the company’s total 5,071,025 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
283%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| First Eagle Investment Management, LLC | 51% | 2,602,772 | +1.3% | 1.2% | $725,522,734 |
| BlackRock, Inc. | 33% | 1,680,060 | -0.05% | 0.01% | $468,316,523 |
| DIMENSIONAL FUND ADVISORS LP | 21% | 1,089,323 | +1.1% | 0.06% | $303,636,693 |
| VANGUARD CAPITAL MANAGEMENT LLC | 16% | 831,165 | 0% | 0.01% | $231,687,244 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 16% | 829,186 | 0% | 0.01% | $231,135,598 |
| ARIEL INVESTMENTS, LLC | 15% | 785,961 | +2.8% | 2.5% | $219,086,629 |
| EARNEST PARTNERS LLC | 12% | 588,731 | -2.5% | 0.68% | $164,108,766 |
| STATE STREET CORP | 11% | 559,570 | -0.01% | 0.01% | $155,980,138 |
| Capital World Investors | 8.9% | 450,000 | 0.02% | $125,437,500 | |
| BANK OF AMERICA CORP /DE/ | 8.8% | 444,957 | -0.11% | 0.01% | $124,031,764 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 8.4% | 426,038 | +7.8% | 0.02% | $118,758,094 |
| First Pacific Advisors, LP | 8% | 407,358 | +1.5% | 1.6% | $113,551,043 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 7.8% | 396,150 | -0.77% | 0.04% | $110,422,710 |
| Capital Research Global Investors | 7.6% | 385,579 | -22% | 0.02% | $107,480,146 |
| GEODE CAPITAL MANAGEMENT, LLC | 7.2% | 364,682 | +7.8% | 0.01% | $101,678,457 |
| UBS Group AG | 7% | 354,365 | +64% | 0.02% | $98,779,244 |
| SEI INVESTMENTS CO | 5.7% | 287,912 | -1.4% | 0.07% | $80,260,574 |
| BARCLAYS PLC | 5.5% | 278,835 | +1038% | 0.03% | $77,725,256 |
| MORGAN STANLEY | 5.4% | 273,931 | +47% | 0% | $76,358,666 |
| PARNASSUS INVESTMENTS, LLC | 5% | 254,305 | +0.86% | 0.21% | $70,887,519 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 4.5% | 226,070 | 0% | 0.74% | $63,017,013 |
| NORTHERN TRUST CORP | 4.3% | 218,497 | +1.1% | 0.01% | $60,906,040 |
| NOMURA HOLDINGS INC | 4.3% | 217,342 | 0.62% | $60,584,083 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.9% | 196,558 | +9% | 0.01% | $54,790,543 |
| Mawer Investment Management Ltd. | 3.7% | 188,784 | -19% | 0.34% | $52,623,540 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 19,975,901 | $5,566,603,166 | +$143,015,148 | $278.75 | 389 |
| 2025 Q4 | 19,395,278 | $5,876,844,404 | -$33,433,698 | $302.99 | 395 |
| 2025 Q3 | 19,459,016 | $5,457,813,449 | +$102,667,994 | $280.39 | 392 |
| 2025 Q2 | 19,201,217 | $4,634,744,932 | +$3,469,914 | $241.32 | 380 |
| 2025 Q1 | 19,188,664 | $4,671,911,959 | +$52,969,583 | $243.56 | 429 |
| 2024 Q4 | 18,778,253 | $6,169,336,505 | -$215,682,627 | $328.51 | 450 |
| 2024 Q3 | 19,370,183 | $6,481,921,085 | -$218,781,622 | $334.58 | 433 |
| 2024 Q2 | 19,799,636 | $5,407,155,613 | +$314,233,620 | $273.11 | 428 |
| 2024 Q1 | 18,483,713 | $6,388,531,345 | +$32,714,858 | $345.87 | 456 |
| 2023 Q4 | 18,529,807 | $5,981,150,118 | -$116,305,124 | $322.89 | 479 |
| 2023 Q3 | 18,786,490 | $6,730,924,381 | -$58,698,141 | $358.45 | 466 |
| 2023 Q2 | 18,297,158 | $6,935,982,346 | -$192,100,378 | $379.12 | 463 |
| 2023 Q1 | 19,221,018 | $9,200,944,144 | +$12,069,903 | $479.02 | 499 |
| 2022 Q4 | 19,259,738 | $8,110,380,673 | -$117,736,871 | $420.49 | 467 |
| 2022 Q3 | 19,487,538 | $8,135,809,192 | +$113,970,897 | $417.14 | 471 |
| 2022 Q2 | 19,114,362 | $9,462,174,468 | +$34,485,329 | $495.00 | 489 |
| 2022 Q1 | 19,167,385 | $10,796,615,316 | -$34,402,167 | $563.23 | 505 |
| 2021 Q4 | 19,102,716 | $14,417,922,909 | -$389,707,592 | $755.57 | 521 |
| 2021 Q3 | 19,387,789 | $14,451,450,076 | +$60,848,148 | $745.95 | 500 |
| 2021 Q2 | 19,381,230 | $12,476,219,166 | -$119,629,052 | $644.29 | 496 |
| 2021 Q1 | 19,617,764 | $11,195,376,908 | -$8,883,384 | $571.17 | 483 |
| 2020 Q4 | 19,657,768 | $11,449,028,308 | +$302,277,766 | $582.94 | 483 |
| 2020 Q3 | 19,264,413 | $9,927,181,928 | +$28,169,224 | $515.46 | 471 |
| 2020 Q2 | 19,228,922 | $8,674,553,754 | +$210,745,728 | $451.49 | 461 |
| 2020 Q1 | 18,823,652 | $6,598,533,578 | -$18,322,057 | $350.56 | 400 |