X0508 4 2024-05-30 0001274494 FIRST SOLAR, INC. FSLR 0001645425 Bradley Alexander R. C/O FIRST SOLAR, INC. 350 WEST WASHINGTON STREET, SUITE 600 TEMPE AZ 85288 1 Chief Financial Officer 1 Common Stock 2024-05-30 4 S 0 300 269.42 D 46403 D Common Stock 2024-05-30 4 S 0 500 271.01 D 45903 D Common Stock 2024-05-30 4 S 0 900 271.89 D 45003 D Common Stock 2024-05-30 4 S 0 2150 273.34 D 42853 D Common Stock 2024-05-30 4 S 0 3765 274.25 D 39088 D Common Stock 2024-05-30 4 S 0 4350 275.35 D 34738 D Common Stock 2024-05-30 4 S 0 3186 276.29 D 31552 D Common Stock 2024-05-30 4 S 0 800 277.36 D 30752 D Common Stock 2024-05-30 4 S 0 100 278.22 D 30652 D This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on March 1, 2024. This transaction was executed in multiple trades at prices ranging from $268.98 to $269.64. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $270.45 to $271.40. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $271.45 to $272.32. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $272.75 to $273.74. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $273.84 to $274.79. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $274.87 to $275.84. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $275.90 to $276.89 The price reported above reflects the weighted average purchase price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. This transaction was executed in multiple trades at prices ranging from $277.07 to $278.00. The price reported above reflects the weighted average sale price for the transactions reported on this line. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Jason E. Dymbort, attorney-in-fact 2024-05-31