What does CUSIP 090572108 represent in this 13F holders report?

CUSIP 090572108 is the security identifier for BIOB - BIO RAD LABS INC - CL B used to aggregate holder disclosures.

How many institutions held BIOB - BIO RAD LABS INC - CL B in Q1 2023?

9 institutional investors reported BIOB - BIO RAD LABS INC - CL B for Q1 2023. Use the holders table for investor-level position and value details.

BIO RAD LABS INC - CL B (BIOB)

CUSIP: 090572108

Q1 2023 13F Holders as of 31 Mar 2023

Security type / class: Equity / CL B
Total 13F shares: 5,934
Total 13F value: $2,754,171
Share change: +398
SEC-reported price per share: $464.21
Number of holders: 9
Value change: +$190,910
Number of buys: 1
Number of sells: 1

Security key

090572108

Report period

Q1 2023

Institutions

Top holders

BIOB full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 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

Reporting periods

Holder history for CUSIP 090572108

Newer quarter: Q3 2025

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025

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

VANGUARD GROUP INC

Disclosed value leader

VANGUARD GROUP INC

Comparable rows

15/15

Latest evidence

31 Dec 2022

13F Lead comparable stake: 47% Showing 1-6 of 15 holder rows.

Quick read

VANGUARD GROUP INC leads the comparable SEC ownership view at 47%.

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 VANGUARD GROUP INC's linked filing trail.

Comparable ownership Top 5

VANGUARD GROUP INC 47%

BlackRock Finance, Inc. 31%

Veritas Asset Management LLP 23%

STATE STREET CORP 19%

BROWN ADVISORY INC 16%

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
VANGUARD GROUP INC	13F Company 13F	47%	$1,005,574,924 2,391,436 shares	—	31 Dec 2022
BlackRock Finance, Inc.	13F Company 13F	31%	$665,378,330 1,582,388 shares	—	31 Dec 2022
Veritas Asset Management LLP	13F Company 13F	23%	$484,525,161 1,152,287 shares	—	31 Dec 2022
STATE STREET CORP	13F Company 13F	19%	$398,531,171 947,778 shares	—	31 Dec 2022
BROWN ADVISORY INC	13F Company 13F	16%	$345,174,195 820,885 shares	—	31 Dec 2022
ALLIANCEBERNSTEIN L.P.	13F Company 13F	9.5%	$202,211,959 480,896 shares	—	31 Dec 2022

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 2023

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

Institutions

5,934

Rows available

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 2023 vs Q1 2026 Across Filers

Q1 2026 holders

Q1 2023 holders

Holder diff

Investor	Q1 2026 Shares	Q1 2023 Shares	Share Diff	Share Chg %	Q1 2026 value	Q1 2023 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend