
SECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549 FORM 10-K ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934FOR THE FISCAL YEAR ENDED December 31, 2025OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THETRANSITION PERIOD FROM ________ TO ________ COMMISSION FILE NUMBER 001-08524 MYERS INDUSTRIES, INC. (Exact name of registrant as specified in its charter) Securities registered pursuant to Section 12(b) of the Act: Securities Registered Pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes☐No☒ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.Yes☐No☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during thepreceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to the filing requirements for the past 90days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).Yes☒No☐ Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerginggrowth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 ofthe Exchange Act. Accelerated filer☒Smaller reporting company☐Emerging growth company☐ Large accelerated filer☐Non-Accelerated filer☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revisedfinancial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control overfinancial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its auditreport.☒ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflectthe correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any ofthe registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Act).Yes☐No☒ State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the closing sale price on the New YorkStock Exchange as of June 30, 2025: $457,647,016 Indicate the number of shares outstanding of registrant’s common stock as of February 27, 2026: 37,403,228 Shares of Common Stock, without par value. DOCUMENTS INCORPORATED BY REFERENCE: Portions of the Registrant’s Definitive Proxy Statement for its 2026 Annual Meeting of Stockholders are incorporated by reference in Part III of this Form 10-K. TABLE OF CONTENTS ITEM 1. Business4ITEM 1A. Risk Factors9ITEM 1B. Unresolved Staff Comments17ITEM 1C. Cybersecurity17ITEM 2. Properties19ITEM 3. Legal Proceedings20 ITEM 5. Market for Registrant’s Common Stock, Related Stockholder Matters and Issuer Purchases of EquitySecurities21ITEM 6. Reserved22ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations23ITEM 7A. Quantitative and Qualitative Disclosures About Market Risk28ITEM 8. Financial Statements and Supplementary Data29Report of Independent Registered Public Accounting Firm - Ernst & Young LLP (PCAOB Firm ID No. 42)29Consolidated Statements of Operations31Consolidated Statements of Comprehensive Income (Loss)32Consolidated Statements of Financial Position33Consolidated Statements of Shareholders’ Equity34Consolidated Statements of Cash Flows35Notes to Consolidated Financial Statements36ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure62ITEM 9A. Controls and Procedures62ITEM 9B. Other Information64ITEM 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections64 ITEM 10. Directors, Executive Officers and Corporate Governance65ITEM 11. Executive Compensation65ITEM 12. Security Ownershi