X0508 4 2024-03-01 false 0000031107 EASTERN CO EML 0001937435 Hernandez Mark Anthony 3 ENTERPRISE DRIVE SUITE 408 SHELTON CT 06484 true true false false Chief Executive Officer false Common Shares 2024-03-01 4 M false 5000 0 A 23800 D Common Shares 2024-03-01 4 M false 3332 0 A 27132 D Common Shares 2024-03-01 4 A false 5776 0 A 32908 D Stock Award 0 2024-03-01 4 M false 5000 0 D Common Stock 5000 19996 D Stock Award 0 2024-03-01 4 M false 3332 0 D Common Stock 3332 16664 D On July 10, 2023, the reporting person was granted 5,000 shares under The Eastern Company 2020 Executive Stock Incentive Plan that vested on March 1, 2024 due to the reporting person's continued employment at the vesting date. On April 24, 2023, the reporting person was granted 3,332 shares under The Eastern Company 2020 Executive Stock Incentive Plan that vested on March 1, 2024 due the reporting person's continued employment at the vesting date. The reporting person received 5,776 shares under The Eastern Company 2020 Executive Stock Incentive Plan based on the company's achievement of certain performance objectives. /s/ Mark Anthony Hernandez 2024-03-05