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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."}],"balance_after":92449,"source":{"system":"sec-edgar","filing":"0001274494-26-000142","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1274494/000127449426000142/form4.xml","form_type":"4"}},{"id":765600,"issuer":{"id":72,"kind":"organization","name":"FIRST SOLAR, INC.","symbol":"FSLR"},"owners":[{"id":32368,"kind":"person","name":"Widmar Mark R","position":1,"cik":"0001362208","reported_name":"Widmar Mark R","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-22T20:28:39.000Z","date":"2026-05-21","kind":"sale","planned":true,"acquired":false,"shares":136,"price":244.62,"value":33268.32,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on November 6, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $244.51 to $245.27. 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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."}],"balance_after":100286,"source":{"system":"sec-edgar","filing":"0001274494-26-000134","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1274494/000127449426000134/form4.xml","form_type":"4"}},{"id":780555,"issuer":{"id":72,"kind":"organization","name":"FIRST SOLAR, INC.","symbol":"FSLR"},"owners":[{"id":32368,"kind":"person","name":"Widmar Mark R","position":1,"cik":"0001362208","reported_name":"Widmar Mark R","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-13T23:40:24.000Z","date":"2026-05-11","kind":"sale","planned":true,"acquired":false,"shares":1026,"price":231.53,"value":237549.78,"ownership":{"direct":true},"footnotes":[{"field":"date","element":"transactionDate","label":"F1","text":"This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on November 6, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"This transaction was executed in multiple trades at prices ranging from $231.10 to $231.95. 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