X0306 5 2022-12-31 false 0 1 0000031107 EASTERN CO EML 0001663158 Vlak August M. 3 ENTERPRISE DRIVE SUITE 408 SHELTON CT 06484 true true false President & CEO Class A Common Stock 2022-01-19 5 L false 44 26.53 A 23531 D Class A Common Stock 2022-02-09 5 L false 36 25.76 A 23567 D Class A Common Stock 2022-03-07 5 L false 38 24.47 A 23605 D Class A Common Stock 2022-03-15 5 P false 27 24.38 A 23632 D Class A Common Stock 2022-03-15 5 P false 72 24.08 A 23704 D Class A Common Stock 2022-04-20 5 L false 49 23.40 A 23753 D Class A Common Stock 2022-05-06 5 L false 39 23.41 A 23792 D Class A Common Stock 2022-06-07 5 L false 43 21.49 A 23835 D Class A Common Stock 2022-06-15 5 P false 33 20.69 A 23867 D Class A Common Stock 2022-06-15 5 P false 87 20.04 A 23954 D Class A Common Stock 2022-07-12 5 L false 55 21.08 A 24009 D Class A Common Stock 2022-08-05 5 L false 43 21.49 A 24052 D Class A Common Stock 2022-09-13 5 L false 48 19.39 A 24100 D Class A Common Stock 2022-09-15 5 P false 36 19.16 A 24136 D Class A Common Stock 2022-09-15 5 P false 93 18.90 A 24229 D Class A Common Stock 2022-12-15 5 P false 33 21.22 A 24262 D Class A Common Stock 2022-12-15 5 P false 84 21.16 A 24346 D Stock Appreciation Rights 26.30 2022-03-02 4 A false 12000 0 A 2022-03-02 2024-02-25 Common Stock 12000 32000 D Stock Award 0 2022-03-15 4 A false 3978 0 A 2025-03-01 2025-03-01 Common Stock 3978 35978 D Represents shares acquired by the reporting person under The Eastern Company Investors Choice Dividend Reinvestment and Direct Stock Purchase Sale Plan that are eligible for deferred reporting pursuant to Rule 16a-6 under the Securities and Exchange Act of 1934, as amended. Represents shares acquired by the reporting person through the reinvestment of dividends under the The Eastern Company Investors Choice Dividend Reinvestment and Direct Stock Purchase Sale Plan. The reporting person was granted 12,000 stock appreciation rights (SARs) in 2019 that became exercisable upon satisfaction of performance requirements in 2022. The reporting person was granted 3,978 shares that vest on 3/1/2025, subject to employment at the vesting date. /s/August M. Vlak 2023-01-30