X0508 4 2026-03-10 0 0000886346 KADANT INC KAI 0001251663 MCKENNEY MICHAEL J KADANT INC. ONE TECHNOLOGY PARK DRIVE WESTFORD MA 01886 0 1 0 0 Executive Vice President & CFO 0 Common Stock 2026-03-10 4 M 0 1253 A 14219.009 D Common Stock 2026-03-10 4 F 0 606 334.17 D 13613.009 D Common Stock 2026-03-10 4 M 0 239 A 13852.009 D Common Stock 2026-03-10 4 F 0 116 334.17 D 13736.009 D Common Stock 2026-03-10 4 M 0 933 A 14669.009 D Common Stock 2026-03-10 4 F 0 452 334.17 D 14217.009 D Common Stock 2026-03-10 4 M 0 223 A 14440.009 D Common Stock 2026-03-10 4 F 0 108 334.17 D 14332.009 D Common Stock 2026-03-10 4 M 0 666 A 14998.009 D Common Stock 2026-03-10 4 F 0 323 334.17 D 14675.009 D Common Stock 2026-03-10 4 M 0 174 A 14849.009 D Common Stock 2026-03-10 4 F 0 85 334.17 D 14764.009 D Restricted Stock Unit 0 2026-03-10 4 M 0 1253 0 D 2026-04-30 Common Stock 1253 0 D Restricted Stock Unit 0 2026-03-10 4 M 0 239 0 D 2026-04-30 Common Stock 239 0 D Restricted Stock Unit 0 2026-03-10 4 M 0 933 0 D 2027-04-30 Common Stock 933 933 D Restricted Stock Unit 0 2026-03-10 4 M 0 223 0 D 2027-04-30 Common Stock 223 222 D Restricted Stock Unit 0 2026-03-10 4 M 0 666 0 D 2028-04-30 Common Stock 666 1331 D Restricted Stock Unit 0 2026-03-10 4 M 0 174 0 D 2028-04-30 Common Stock 174 346 D The shares represent the partial settlement under a performance-based RSU award granted March 7, 2023. One-third of the RSU vested and became distributable on March 10, 2026 and was converted to common stock on a one-for-one basis on the vesting date. The shares represent the partial settlement under a time-based RSU award granted March 7, 2023. One-third of the RSU vested and became distributable on March 10, 2026 and was converted to common stock on a one-for-one basis on the vesting date. The shares represent the partial settlement under a performance-based RSU award granted March 6, 2024. One-third of the RSU vested and became distributable on March 10, 2026 and was converted to common stock on a one-for-one basis on the vesting date. The shares represent the partial settlement under a time-based RSU award granted March 6, 2024. One-third of the RSU vested and became distributable on March 10, 2026 and was converted to common stock on a one-for-one basis on the vesting date. The shares represent the partial settlement under a performance-based RSU award granted March 4, 2025. One-third of the RSU vested and became distributable on March 10, 2026 and was converted to common stock on a one-for-one basis on the vesting date. The shares represent the partial settlement under a time-based RSU award granted March 4, 2025. One-third of the RSU vested and became distributable on March 10, 2026 and was converted to common stock on a one-for-one basis on the vesting date. /s/ Stacy D. Krause, by power of attorney 2026-03-12