X0508 4 2024-03-16 0000069488 MYERS INDUSTRIES INC MYE 0001698604 McGaugh Michael 1293 SOUTH MAIN STREET AKRON OH 44301 true true false false President and CEO false Common Stock 2024-03-16 4 M false 5939 0.00 A 177737 D Common Stock 2024-03-16 4 F false 2471 20.84 D 175266 D Common Stock 2024-03-16 4 M false 85472 0.00 A 260738 D Common Stock 2024-03-16 4 F false 35557 20.84 D 225181 D Common Stock 2024-03-16 4 M false 9413 0.00 A 234594 D Common Stock 2024-03-16 4 F false 3916 20.84 D 230678 D Common Stock 2024-03-16 4 M false 9657 0.00 A 240335 D Common Stock 2024-03-16 4 F false 4018 20.84 D 236317 D Restricted Stock Units 2024-03-16 4 M false 5939 0.00 D Common Stock 5939 0 D Performance Stock Units 2024-03-16 4 M false 85472 0.00 D 2024-03-16 Common Stock 85472 0 D Restricted Stock Units 2024-03-16 4 M false 9413 0.00 D Common Stock 9413 9414 D Restricted Stock Units 2024-03-16 4 M false 9657 0.00 D Common Stock 9657 19315 D Restricted stock units convert into common stock on a one-for-one basis. Includes 500 shares acquired under the Issuer's employee stock purchase plan in 2023. The shares were received for no consideration upon satisfaction of performance criteria underlying an award of performance stock units granted March 16, 2021. Each restricted stock unit represents a contingent right to receive one share of the Issuer's Common Stock On March 16, 2021, the reporting person was granted 17,818 restricted stock units, subject to vesting in three equal annual installments on March 16, 2022, March 16, 2023, and March 16, 2024. Each performance stock unit represents a contingent right to receive one share of the Issuer's Common Stock based upon the Issuer's cumulative adjusted EBITDA over a three-year performance period ending December 31, 2023, with a relative TSR modifier. On March 15, 2022, the reporting person was granted 28,241 restricted stock units, subject to vesting in three equal annual installments on March 16, 2023, March 16, 2024, and March 16, 2025. On March 6, 2023, the reporting person was granted 28,972 restricted stock units, subject to vesting in three equal annual installments on March 16, 2024, March 16, 2025, and March 16, 2026. /s/ J. Bret Treier, attorney in fact for Michael McGaugh 2024-03-19