Form 4 Filing for BIO-RAD LABORATORIES, INC.

This filing details transactions by Arnold A. Pinkston, a director at BIO-RAD LABORATORIES, INC. On April 21, 2026, Pinkston acquired 369 shares of Bio-Rad A Common Stock through the vesting of restricted stock units. Additionally, 407 shares of Bio-Rad A Common Stock were acquired, which corresponds to the settlement of vested restricted stock units. These transactions were reported on Form 4. The restricted stock units vest on the earlier of the first anniversary of the grant date or the company's next annual meeting. Following these transactions, Pinkston directly owns 715 shares of Bio-Rad A Common Stock.