X0306 4 2016-08-04 0001274494 FIRST SOLAR, INC. FSLR 0001647261 Bueter Christopher C/O FIRST SOLAR, INC. 350 WEST WASHINGTON STREET, SUITE 600 TEMPE AZ 85281-1244 1 EVP, Human Resources Common Stock 2016-08-04 4 S 0 17187 44.53 D 17718 D Common Stock 2016-08-05 4 S 0 12197 43.80 D 5521 D Represents shares of common stock sold by the reporting person to satisfy certain tax withholding obligations associated with the issuance of common stock relating to the vesting of KSTEPP performance units, as described in the Form 4 filed by the reporting person with the Securities and Exchange Commission on July 25, 2016. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on November 11, 2014. This transaction was executed in multiple trades at prices ranging from $42.78 to $49.48. The price reported above reflects the weighted average sale price for the transactions reported on this line. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on May 13, 2016. This transaction was executed in multiple trades at prices ranging from $43.28 to $44.23. The price reported above reflects the weighted average sales price for the transactions reported on this line. /s/ Peter C. Bartolino, Attorney-in-fact 2016-08-08