Jonathan P. DiVincenzo - 05 Sep 2025 Form 4 Insider Report for BIO-RAD LABORATORIES, INC. (BIO)

Role: President & COO
Signature: /s/ Jonathan P. DiVincenzo
Issuer symbol: BIO
Transactions as of: 05 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 09 Sep 2025, 16:21:33 UTC
Previous filing: 05 Mar 2025
Next filing: 28 Oct 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
DiVincenzo Jonathan P.	President & COO	C/O BIO-RAD LABORATORIES, INC., 1000 ALFRED NOBEL DRIVE, HERCULES	/s/ Jonathan P. DiVincenzo	08 Sep 2025	0001453524

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	BIO BIO.B	Restricted Stock Units	Award	$0	+6,850		$0.000000	6,850	05 Sep 2025	Bio-Rad A Common Stock	6,850	$0.000000	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of Bio-Rad Class A common stock.
F2	The restricted stock units vest over four years at 25% per year on the yearly anniversary date of the grant.