Security key
090572108
- Security type / class
- Equity / CL B
- Total 13F shares
- 2,894
- Total 13F value
- $809,486
- Share change
- +757
- SEC-reported price per share
- $282.98
- Number of holders
- 5
- Value change
- +$207,881
- Number of buys
- 1
- Number of sells
- 1
Report period
Q3 2025
Institutions
5
Top holders
5
BIOB full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
BIO-RAD LABORATORIES, INC. SEC filings
BIO-RAD LABORATORIES, INC. company facts
BIO-RAD LABORATORIES, INC. 13D/G history
Broader feeds
Reporting periods
Holder history for CUSIP 090572108
Recent filing periods:
Ownership snapshot
Top reported holders of BIOB - BIO RAD LABS INC - CL B (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
|
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
|
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
|
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
|
8.4%
|
$462,850,693
1,907,640 shares
|
$0 | 30 Sep 2024 |
| BlackRock, Inc. |
13D/G
13F
Company
|
7.4%
|
$453,705,832
1,618,123 shares
|
$0 | 30 Sep 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
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
5
Shares
2,894
Rows available
5
| 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 Q1 2026 Across Filers
Q1 2026 holders
7
Q3 2025 holders
5
Holder diff
-2
| Investor | Q1 2026 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q1 2026 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend