BIO-RAD LABORATORIES, INC. - Class B Common Stock (BIO)

CUSIP: 090572207

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class
Equity / Class B Common Stock
Total 13F shares
19,975,901
Total 13F value
$5,566,603,166
Holder snapshot 6 visible 7 signals
Share change
+641,501
Put/Call ratio
20%
SEC-reported price per share
$278.75
Number of holders
389
Value change
+$143,015,148
Number of buys
198
Open additional details 1 more signal available
Number of sells
156
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
5,071,025

Security key

090572207

Report period

Q1 2026

Institutions

389

Top holders

10

BIO full security history Ownership snapshot Full 13F holder table Previous quarter: Q4 2025 BIO-RAD LABORATORIES, INC. SEC filings BIO-RAD LABORATORIES, INC. company facts BIO-RAD LABORATORIES, INC. 13D/G history

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders 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. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Norman D. Schwartz
Disclosed value leader
Alice N. Schwartz
Comparable rows
15/15
Latest evidence
31 Dec 2025
13D/G 3/4/5 13F Lead comparable stake: 97% 13D/G row: Norman D. Schwartz Showing 1-6 of 15 holder rows.

Quick read

Norman D. Schwartz leads the comparable SEC ownership view at 97%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Norman D. Schwartz's linked filing trail.
Comparable ownership Top 5
Norman D. Schwartz 97%
Alice N. Schwartz 12%
First Eagle Investment Management... 11%
VANGUARD GROUP INC 8.4%
BlackRock, Inc. 7.4%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Norman D. Schwartz
13D/G 3/4/5
Chairman & CEO, Director, 10%+ Owner
13D/G 3/4/5
97%
$1,382,052,897
4,929,036 shares
 $0 25 Sep 2025
Alice N. Schwartz
3/4/5 13D/G
Director Emeritus, 10%+ Owner
3/4/5 13D/G
12%
from 13D/G
$3,592,267,092
11,862,229 shares
mixed-class rows
 — 26 Aug 2024
First Eagle Investment Management, LLC
13F 13D/G
Company
13F 13D/G
11%
from 13D/G
$778,827,760
2,570,473 shares
 — 31 Dec 2025
VANGUARD GROUP INC
13F 13D/G
Company · The Vanguard Group - 23-1945930
13F 13D/G
8.4%
from 13D/G
$537,583,947
1,774,263 shares
 — 31 Dec 2025
BlackRock, Inc.
13F 13D/G
Company
13F 13D/G
7.4%
from 13D/G
$509,310,344
1,680,948 shares
 — 31 Dec 2025
DIMENSIONAL FUND ADVISORS LP
13F
Company
13F
21%
$326,343,765
1,077,072 shares
 — 31 Dec 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
389
Shares
19,975,901
Rows available
389
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
395
Q1 2026 holders
389
Holder diff
-6
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 value Q1 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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