X0609 4 2026-05-07 0000912562 GIBRALTAR INDUSTRIES, INC. ROCK 0001849779 Mizell Gwendolyn G false 3556 LAKE SHORE ROAD P.O. BOX 2028 BUFFALO NY 14219-0228 1 0 Common Stock 2026-05-07 4 A 0 3059 37.59 A 12734 D Restricted Stock Unit (MSPP Post-2012) Common Stock 533.637 533.637 D Represents shares of common stock which the Reporting Person is entitled to receive annually pursuant to the compensation program in effect for non-employee directors. Represents restricted stock units allocated to the Reporting Person after 2012 with respect to the Reporting Person's deferral of a portion of his/her annual director retainer fee. Restricted stock units are payable solely in cash in one lump sum payment or in five (5) or ten (10) consecutive, substantially equal annual installments, whichever distribution form is elected by the Reporting Person, beginning six (6) months following termination of service as a director of the Company. Each restricted stock unit is converted to cash in an amount equal to the fair market value (200 day rolling average) of one share of the Company's common stock on the date of termination of the Reporting Person's service as a director of the Company. /s/ Jeffrey J. Watorek, Attorney-in-Fact for Gwendolyn G. Mizell 2026-05-08