X0508 4 2026-03-01 false 0000031107 EASTERN CO EML 0001964629 Vlahos Nicholas Alec 3 ENTERPRISE DRIVE SUITE 407 SHELTON CT 06484 false true false Chief Financial Officer false Common Shares 2026-03-01 4 M false 907 A 6730 D Stock Award 2026-03-01 4 M false 907 A Common Shares 907 0 D The reporting person was granted 907 shares under The Eastern Company 2020 Executive Stock Incentive Plan that vested on March 1, 2026 due to the reporting person's continued employment at the vesting date. This total does not include 500 shares that were previously reported in error as part of the total for this award. Nicholas A. Vlahos 2026-03-12