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

CUSIP: 090572207

Q3 2025 13F Holders as of 30 Sep 2025

Security type / class
Equity / Class B Common Stock
Total 13F shares
19,459,016
Total 13F value
$5,457,813,449
Holder snapshot 6 visible 7 signals
Share change
+273,446
Put/Call ratio
55%
SEC-reported price per share
$280.39
Number of holders
392
Value change
+$102,667,994
Number of buys
180
Open additional details 1 more signal available
Number of sells
185
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
5,071,025

Security key

090572207

Report period

Q3 2025

Institutions

392

Top holders

10

BIO full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2025 Previous quarter: Q2 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
30 Sep 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
13D/G 13F
Company
13D/G 13F
11%
$657,060,173
2,528,321 shares
 +$60,827,513 30 Jun 2025
VANGUARD GROUP INC
13D/G 13F
The Vanguard Group - 23-1945930 · Company
13D/G 13F
8.4%
$462,850,693
1,907,640 shares
 $0 30 Sep 2024
BlackRock, Inc.
13D/G 13F
Company
13D/G 13F
7.4%
$453,705,832
1,618,123 shares
 $0 30 Sep 2025
DIMENSIONAL FUND ADVISORS LP
13F
Company
13F
20%
$241,221,570
999,568 shares
 — 30 Jun 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 Q3 2025

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

Institutions
392
Shares
19,459,016
Rows available
392
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 Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders
380
Q3 2025 holders
392
Holder diff
12
Investor Q2 2025 Shares Q3 2025 Shares Share Diff Share Chg % Q2 2025 value Q3 2025 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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