Norman Schwartz - Sep 25, 2025 SCHEDULE 13D/A Report for Bio-Rad Laboratories, Inc. Class A Common Stock (BIO)

Filing Manager
SCHWARTZ NORMAN D
Reporting Manager
Norman D. Schwartz
Security
Bio-Rad Laboratories, Inc. Class A Common Stock
Symbol
BIO
Shares outstanding
22.1M shares
Disclosed Ownership
3.23M shares
Ownership
14.6%
Form type
SCHEDULE 13D/A
Date filed
10/28/2025, 04:30 PM
Date of event
Sep 25, 2025
SEC
View on sec.gov

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Norman D. Schwartz 14.6% 3.23M 3.21M 17.1K /s/ Norman D. Schwartz Norman D. Schwartz, Individually 0000940805
Alice N. Schwartz Revocable Trust 8.1% 1.78M 1.78M 0 /s/ Norman D. Schwartz Norman D. Schwartz, Trustee