X0508 4 2025-08-29 false 0000792987 ASTEC INDUSTRIES INC ASTE 0001683999 Merwe Jaco van der 1725 SHEPHERD RD CHATTANOOGA TN 37421 false true false false Chief Executive Officer false Common Stock 2025-08-29 4 A false 143.00 0.00 A 93589.00 D Phantom Stock 2025-08-29 4 A false 5.2903 0.00 A Common Stock 0.00 1389.6605 D Represents dividend equivalents earned on the prior RSU grant awards. Reflects acquisition of phantom stock under Astec's supplemental executive retirement plan. Each share of phantom stock represents the right to receive the cash value of one share of Astec common stock. The shares of phantom stock become payable upon the reporting person's termination of service as an officer, in a single lump sum or in up to 10 annual installments, at the election of the reporting person. /s/ Edward Terrell Gilbert, JR as attorney in fact for Jaco van der Merwe 2025-09-02