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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

X0202 SCHEDULE 13D/A 0000887762 XXXXXXXX LIVE 10 Common Stock, no par value 03/16/2026 false 0000031107 276317104 EASTERN CO 112 Bridge Street Naugatuck CT 06770 James A. Mitarotonda (212) 974-5700 Barington Companies Management, LLC 888 Seventh Avenue, 17th Floor New York NY 10019 0001107149 N Barington Companies Equity Partners, L.P. a WC N DE 642342.00 0.00 642342.00 0.00 642342.00 N 10.6 PN 0001324904 N Barington Companies Investors, LLC a OO N DE 642342.00 0.00 642342.00 0.00 642342.00 N 10.6 OO 0000887762 N Barington Companies Management, LLC a OO N DE 642342.00 0.00 642342.00 0.00 642342.00 N 10.6 IA 0000880915 N Barington Capital Group, L.P. a OO N NY 642342.00 0.00 642342.00 0.00 642342.00 N 10.6 PN 0001324903 N LNA Capital Corp. a OO N DE 642342.00 0.00 642342.00 0.00 642342.00 N 10.6 CO 0001254583 N James A. Mitarotonda a OO N X1 686853.00 0.00 686853.00 0.00 686853.00 N 11.4 IN Common Stock, no par value EASTERN CO 112 Bridge Street Naugatuck CT 06770 This Amendment No. 10 amends and supplements the Schedule 13D filed with the Securities and Exchange Commission (the "SEC") on September 30, 2014, as amended by that certain Amendment No. 1 filed on February 6, 2015, Amendment No. 2 filed on February 23, 2015, Amendment No. 3 filed on March 9, 2015, Amendment No. 4 filed on March 27, 2015, Amendment No. 5 filed on April 13, 2015, Amendment No. 6 filed on August 5, 2015, Amendment No. 7 filed on September 14, 2015, Amendment No. 8 filed on May 23, 2017 and Amendment No. 9 filed on November 24, 2021 (collectively, the "Statement"), by and on behalf of Barington Companies Equity Partners, L.P. ("Barington") and others with respect to the common stock, no par value (the "Common Stock"), of The Eastern Company, a Connecticut corporation (the "Company" or "Eastern"). The principal executive offices of the Company are located at 112 Bridge Street, Naugatuck, Connecticut 06770. Item 2(a)-(c) of the Statement is hereby amended and restated as follows: This Statement is being filed by Barington Companies Equity Partners, L.P., Barington Companies Investors, LLC, Barington Companies Management, LLC, Barington Capital Group, L.P., LNA Capital Corp., and James A. Mitarotonda (each, a "Reporting Entity" and, collectively, the "Reporting Entities"). As of the close of business on March 16, 2026, the Reporting Entities are the beneficial owners of, in the aggregate, 686,853 shares of Common Stock, representing approximately 11.36% of the 6,041,767 shares of Common Stock reported by the Company to be issued and outstanding as of February 15, 2026 in its Form 10-K filed with the Securities and Exchange Commission on March 3, 2026 (the "Issued and Outstanding Shares"). Barington Companies Equity Partners, L.P. is a Delaware limited partnership. The principal business of Barington Companies Equity Partners, L.P. is acquiring, holding and disposing of investments in various companies. The address of the principal business and principal office of Barington Companies Equity Partners, L.P. is 888 Seventh Avenue, 6th Floor, New York, New York 10019. The general partner of Barington Companies Equity Partners, L.P. is Barington Companies Investors, LLC. Barington Companies Investors, LLC is a Delaware limited liability company. The principal business of Barington Companies Investors, LLC, is serving as the general partner of Barington Companies Equity Partners, L.P. The address of the principal business and principal office of Barington Companies Investors, LLC is 888 Seventh Avenue, 6th Floor, New York, New York 10019. James A. Mitarotonda is the Managing Member of Barington Companies Investors, LLC. Barington Companies Management, LLC, a Delaware limited liability company, is the investment adviser of Barington Companies Equity Partners, L.P. The principal business of Barington Companies Management, LLC is to provide investment advisory services to Barington Companies Equity Partners, L.P. The address of the principal business and principal office of Barington Companies Management, LLC is 888 Seventh Avenue, 6th Floor, New York, New York 10019. James A. Mitarotonda is the Managing Member of Barington Companies Management, LLC. Barington Companies Investors, LLC and Barington Companies Management, LLC are majority-owned subsidiaries of Barington Capital Group, L.P. Barington Capital Group, L.P. is a New York limited partnership. The principal business of Barington Capital Group, L.P. is acquiring, holding and disposing of investments in various companies. The address of the principal business and principal office of Barington Capital Group, L.P. is 888 Seventh Avenue, 6th Floor, New York, New York 10019. The general partner of Barington Capital Group, L.P. is LNA Capital Corp. LNA Capital Corp. is a Delaware corporation. The principal business of LNA Capital Corp. is serving as the general partner of Barington Capital Group, L.P. The address of the principal business and principal office of LNA Capital Corp. is c/o Barington Capital Group, L.P., 888 Seventh Avenue, 6th Floor, New York, New York 10019. James A. Mitarotonda, a United States citizen, is the sole stockholder and director of LNA Capital Corp. The executive officers of LNA Capital Corp. and their principal occupations and business addresses are set forth on the signature page and incorporated herein by reference in this Item 2. The principal occupation of Mr. Mitarotonda is serving as the Chairman and Chief Executive Officer of Barington Capital Group, L.P. The business address of Mr. Mitarotonda is c/o Barington Capital Group, L.P., 888 Seventh Avenue, 6th Floor, New York, New York 10019. The information contained in Item 3 of the Statement is hereby amended and supplemented as follows: Since the filing of the last Statement, the Reporting Entities purchased an aggregate of 41,151 shares of Common Stock through open market transactions and pursuant to the Eastern Company's Directors Fee Program. The amount of funds expended for purchases of Common Stock was approximately $1,578,352.18 by Barington Companies Equity Partners, L.P. All transactions effected during the past sixty days are described in the Schedule attached hereto and incorporated herein by reference. All such purchases were funded by working capital, which may, at any given time, include margin loans made by brokerage firms in the ordinary course of business. The information contained in Item 4 of the Statement is hereby amended and supplemented as follows: Barington Companies Equity Partners, L.P. acquired the shares of Common Stock over which they exercise beneficial ownership for portfolio management purposes. Mr. Mitartonda is also individually the beneficial owner of 44,511 shares of Common Stock granted to him under The Eastern Company's Directors Fee Program. Except as stated in response to this Item 4, the Reporting Persons have no current plans or proposals with respect to the Issuer or its securities enumerated in paragraphs (a) through (j) of this Item 4 to the form Schedule 13D promulgated under the Act. Notwithstanding the foregoing, the Reporting Persons may determine, from time to time in the future, based on market and general economic conditions, the business affairs and financial conditions of the Issuer, the capital requirements of the Reporting Persons, the availability of securities at favorable prices and other alternative investment opportunities available to the Reporting Persons, and other factors that the Reporting Persons may deem relevant, to acquire additional securities of the Issuer in the open market, in privately negotiated transactions, or otherwise, or to sell some or all of the securities it now holds or hereafter acquires as set forth above or otherwise. Items 5(a) and 5(c) of the Statement are hereby amended and restated as follows: As of the close of business on March 16, 2026, Barington Companies Equity Partners, L.P. beneficially owns an aggregate of 642,342 shares of Common Stock, representing approximately 10.63% of the Issued and Outstanding Shares. As the general partner of Barington Companies Equity Partners, L.P., Barington Companies Investors, LLC may be deemed to beneficially own the 642,342 shares of Common Stock beneficially owned by Barington Companies Equity Partners, L.P. As the investment adviser of Barington Companies Equity Partners, L.P., Barington Companies Management, LLC may be deemed to beneficially own the 642,342 shares of Common Stock beneficially owned by Barington Companies Equity Partners, L.P. As the majority member of Barington Companies Investors, LLC and Barington Companies Management, LLC, Barington Capital Group, L.P. may be deemed to beneficially own the 642,342 shares of Common Stock beneficially owned by Barington Companies Equity Partners, L.P. As the general partner of Barington Capital Group, L.P., LNA Capital Corp. may be deemed to beneficially own the 642,342 shares of Common Stock beneficially owned by Barington Companies Equity Partners, L.P. As the sole stockholder and director of LNA Capital Corp., James A. Mitarotonda may be deemed to beneficially own the 642,342 shares of Common Stock beneficially owned by Barington Companies Equity Partners, L.P. Mr. Mitarotonda has sole voting and dispositive power with respect to the 642,342 shares of Common Stock beneficially owned by Barington Companies Equity Partners, L.P. Mr. Mitarotonda disclaims beneficial ownership of any such shares except to the extent of his pecuniary interest therein. Mr. Mitartonda is also individually the beneficial owner of 44,511 shares of Common Stock granted to him under The Eastern Company's Directors Fee Program, which, together with the shares of Common Stock beneficially owned by Barington Companies Equity Partners, L.P., represents approximately 11.36% of the Issued and Outstanding Shares. Mr. Mitarotonda has sole voting and dispositive power with respect to the 642,342 shares of Common Stock beneficially owned by Barington Companies Equity Partners, L.P. and the 44,511 shares of Common Stock granted to him under The Eastern Company's Directors Fee Program. Information concerning all transactions in shares of Common Stock effected during the past sixty days by Barington Companies Equity Partners, L.P., Barington Companies Investors, LLC, Barington Companies Management, LLC, Barington Capital Group, L.P., LNA Capital Corp., and James A. Mitarotonda is set forth in the Schedule I attached hereto and incorporated herein by reference. The information contained in Item 6 of the Statement is hereby amended and supplemented as follows: The Reporting Persons have no knowledge of any contracts, arrangements, understandings or relationships (legal or otherwise) among the persons named in response to Item 2 or between such persons and any person with respect to any securities of the Issuer. Schedule I annexed hereto lists all transactions in securities of the Issuer by the Reporting Persons since the past sixty days of this filing. Barington Companies Equity Partners, L.P. Barington Companies Investors, LLC, its general partner /s/ James A. Mitarotonda James A. Mitarotonda Managing Member 03/18/2026 Barington Companies Investors, LLC /s/ James A. Mitarotonda James A. Mitarotonda Managing Member 03/18/2026 Barington Companies Management, LLC /s/ James A. Mitarotonda James A. Mitarotonda Managing Member 03/18/2026 Barington Capital Group, L.P. LNA Capital Corp., its general partner /s/ James A. Mitarotonda James A. Mitarotonda President and CEO 03/18/2026 LNA Capital Corp. /s/ James A. Mitarotonda James A. Mitarotonda President and CEO 03/18/2026 James A. Mitarotonda /s/ James A. Mitarotonda James A. Mitarotonda 03/18/2026