Bio-Rad Laboratories (BIO) 10-Q 2024 Q3 Quarterly report

Exhibit 32.1

Certification of Periodic Report

I, Norman Schwartz, Chief Executive Officer of Bio-Rad Laboratories, Inc. (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

(1)the Quarterly Report on Form 10-Q of the Company for the quarter ended September 30, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

(2)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	October 31, 2024	/s/ Norman Schwartz
		Norman Schwartz, Chairman of the Board and Chief Executive Officer

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure document.