X0306 4/A 2022-02-22 2022-02-24 0 0000863436 BENCHMARK ELECTRONICS INC BHE 0001411283 Buseman Michael D. 56 SOUTH ROCKFORD DRIVE TEMPE AZ 85281 0 1 0 0 EVP, Chief Operating Officer Common Stock 2022-02-22 4 F 0 3538 25.56 D 46376 D These shares are being withheld to cover taxes related to the vesting of restricted stock units. The original Form 4, filed on February 24, 2022, is being amended by this Form 4 amendment solely to correct an administrative error, which overstated by 152 shares the number of shares withheld to cover taxes related to the vesting of restricted stock units. This error was reflected in all subsequent reports on Form 4 filed to date after the original Form 4 was filed of the reporting person. /s/ Jason Eastburn by Power of Attorney for Michael D Buseman 2022-04-01