X0609 4 2026-06-03 0 0000886346 KADANT INC KAI 0001406518 Powell Jeffrey L false KADANT INC. ONE TECHNOLOGY PARK DRIVE WESTFORD MA 01886 1 1 0 0 President & CEO 0 Common Stock 2026-06-03 4 G 0 12282 0 D 0 D Common Stock 60949 I By Jeffrey L. Powell, and his Successors, as Trustee of the Jeffrey L. Powell Revocable Trust On June 3, 2026, the reporting person transferred 12,282 shares of Kadant Inc. common stock to Jeffrey L. Powell, and his Successors, as Trustee of the Jeffrey L. Powell Revocable Trust, for no consideration. The reporting person is the trustee of the trust, and the reporting person and members of his immediate family are the sole beneficiaries of the trust. The reporting person remains the beneficial owner of the securites held by the trust. /s/ Stacy D. Krause, by power of attorney 2026-06-03