X0306 4 2018-05-07 false 0000912562 GIBRALTAR INDUSTRIES, INC. ROCK 0001225532 MONTAGUE WILLIAM P 3556 LAKE SHORE ROAD P.O. BOX 2028 BUFFALO NY 14219-0228 true false false false Common Stock 2018-05-07 4 A false 2936.00 36.50 A 36774.00 D Common Stock (Restricted) 2018-05-07 4 D false 2936.00 0.00 D 2000.00 D Deferred Stock Units 6536.00 D Restricted Stock Unit (MSPP Match Post-2012) Common Stock 3812.69 3812.69 D Restricted Stock Unit (MSPP Match) Common Stock 7431.61 7431.61 D Restricted Stock Unit (MSPP Post-2012) Common Stock 3812.69 3812.69 D Restricted Stock Unit (MSPP) Common Stock 14873.74 14873.74 D Reported solely to reflect the vesting of formerly restricted shares of common stock held by the Reporting Person. Restricted stock units are forfeited if Reporting Person's service as a director of the Company is terminated prior to age sixty (60). If service as a director continues through age sixty (60), 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. 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. Restricted stock units are forfeited if Reporting Person's service as a director of the Company is terminated prior to age sixty (60). If service as a director continues through age sixty (60), restricted stock units are payable solely in cash in five (5) consecutive, substantially equal annual installments, beginning in January of the year following the year in which termination of service occurs. 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. 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. Restricted stock units are payable solely in cash in five (5) consecutive, substantially equal annual installments beginning in January of the year following the year in which termination of service as a member of the Company's Board of Directors occurs. 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/Paul J. Schulz, Attorney in Fact for William P. Montague 2018-05-09