Eva Anette Engelhardt - Jul 25, 2025 Form 4 Insider Report for BIO-RAD LABORATORIES, INC. (BIO BIO.B)

Role: EVP, President, CDG
Signature: /s/ Eva Anette Engelhardt
Stock symbol: BIO BIO.B
Transactions as of: Jul 25, 2025
Transactions value $: -$23,249
Form type: 4
Date filed: 7/29/2025, 05:20 PM
Previous filing: Mar 5, 2025
Next filing: Sep 9, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
ENGELHARDT EVA ANETTE	EVP, President, CDG	C/O BIO-RAD LABORATORIES, INC., 1000 ALFRED NOBEL DRIVE, HERCULES	/s/ Eva Anette Engelhardt	2025-07-29	0002024911

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BIO BIO.B	Bio-Rad A Common Stock	Options Exercise	$0	+245		$0.00	245	Jul 25, 2025	Direct	F1
transaction	BIO BIO.B	Bio-Rad A Common Stock	Tax liability	-$23.2K	-88	-35.92%	$264.19	157	Jul 25, 2025	Direct

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	Options Exercise	$0	-245	-24.92%	$0.00	738	Jul 25, 2025	Bio-Rad A Common Stock	245	$0.00	Direct	F2, F3

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

Explanation of Responses:

Id	Content
F1	Shares of Class A common stock acquired on the vesting of restricted stock units.
F2	Each restricted stock unit represents a contingent right to receive one share of Bio-Rad Class A common stock.
F3	The restricted stock units vest over four years at 25% per year on the yearly anniversary date of the grant.