Widmar Mark R plan to sell securities of FIRST SOLAR, INC. under Form 144

Widmar Mark R filed Form 144 to notify SEC of plan to sell 1300 units of FIRST SOLAR, INC. securities around 2026-05-13, with aggregate market value of $312,030.79. The total outstanding units is 107453363.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: On 03/02/2026, sold 7738 units for $1516132.65; On 03/09/2026, sold 5537 units for $1054048.23; On 03/16/2026, sold 1937 units for $388953.28; On 05/05/2026, sold 1526 units for $329058.09; On 05/11/2026, sold 9926 units for $2314876.35;