X0306 4 2019-09-05 0 0000031107 EASTERN CO EML 0001663158 Vlak August M. 112 BRIDGE STREET NAUGATUCK CT 06770 0 1 0 0 President & CEO Common Stock 2019-09-05 4 A 0 352 A 11368 D Common Stock 2019-09-05 4 P 0 3717 24.50 A 15085 D Common Stock 2019-09-06 4 P 0 2000 24.50 A 17085 D Stock Appreciation Rights 19.10 2017-03-02 4 A 0 20000 0 A 2022-03-02 Common Stock 20000 20000 D Stock Appreciation Rights 24.90 2018-02-07 4 A 0 20000 0 A 2023-02-08 Common Stock 20000 20000 D 352 shares acquired at various prices for the period 1/1/2019 through 9/5/2019 under The Eastern Company Dividend Investment Plan and The Eastern Company Employee Stock Purchase Plan. On March 2, 2017, 20,000 stock appreciation rights ("SARs") were granted to the reporting person pursuant to the terms of The Eastern Company 2010 Executive Stock Incentive Plan and a stock appreciation rights agreement, at an exercise price of $19.10 per SAR. These SARs shall vest and become exercisable as follows (provided the reporting person remains an employee of the issuer on each applicable vesting date, and the issuer meets certain performance thresholds prescribed in the stock appreciation rights agreement): 6,667 of the granted SARs vest on February 1, 2018; 6,667 of the granted SARs vest on February 1, 2019; and 6,666 of the granted SARs vest on February 1, 2020. On February 7, 2018, 20,000 stock appreciation rights ("SARs") were granted to the reporting person pursuant to the terms of The Eastern Company 2010 Executive Stock Incentive Plan and a stock appreciation rights agreement, at an exercise price of $24.90 per SAR. These SARs shall vest and become exercisable as follows (provided the reporting person remains an employee of the issuer on each applicable vesting date, and the issuer meets certain performance thresholds prescribed in the stock appreciation rights agreement): 20,000 of the granted SARs vest on February 7, 2021. /s/August M. Vlak 2019-09-09