SCHEDULE 13G/A 0001535264 XXXXXXXX LIVE 4 Common Stock 12/31/2024 0000813298 DESTINATION XL GROUP, INC. 25065K104 555 TURNPIKE STREET CANTON MA 02021 Rule 13d-1(b) AWM Investment Company, Inc. DE 9399297.00 9399297.00 9399297.00 17.3 IA AWM Investment Company, Inc., a Delaware corporation (AWM), is the investment adviser to Special Situations Cayman Fund, L.P. (CAYMAN), Special Situations Fund III QP, L.P. (SSFQP) and Special Situations Private Equity Fund, L.P. (SSPE). (CAYMAN, SSFQP and SSPE will hereafter be referred to as the Funds). As the investment adviser to the Funds, AWM holds sole voting and investment power over 1,799,797 shares of Common Stock of the Issuer (the Shares) held by CAYMAN, 5,729,930 Shares held by SSFQP and 1,869,570 Shares held by SSPE. DESTINATION XL GROUP, INC. 555 TURNPIKE STREET, CANTON, MASSACHUSETTS, 02021 The person filing this report is AWM Investment Company, Inc., a Delaware corporation (AWM), which is the investment adviser to Special Situations Cayman Fund, L.P., a Cayman Islands Limited Partnership (CAYMAN), Special Situations Fund III QP, L.P., a Delaware limited partnership (SSFQP) and Special Situations Private Equity Fund, L.P., a Delaware limited partnership (SSPE). The principal business of each Fund is to invest in equity and equity-related securities and other securities of any kind or nature. David M. Greenhouse (Greenhouse) and Adam C. Stettner (Stettner) are members of: SSCayman, L.L.C., a Delaware limited liability company (SSCAY), the general partner of CAYMAN; MGP Advisers Limited Partnership, a Delaware limited partnership (MGP), the general partner of SSFQP and MG Advisers, L.L.C., a New York limited liability company (MG), the general partner of SSPE. Greenhouse and Stettner are also controlling principals of AWM. 527 Madison Avenue, Suite 2600 New York, NY 10022 AWM is a Delaware Corporation Y 9,399,297 17.3 AWM is the investment adviser to each of the Funds. As the investment adviser to the Funds, AWM holds sole voting over 1,835,668 shares of common stock of the Issuer (the Shares) held by CAYMAN, 5,844,131 Shares held by SSFQP and 1,906,831 Shares held by SSPE. Greenhouse and Stettner are members of: SSCAY, the general partner of CAYMAN; MGP, the general partner of SSFQP; and MG, the general partner of SSPE. Greenhouse and Stettner are also controlling principals of AWM. AWM is the investment adviser to each of the Funds. As the investment adviser to the Funds, AWM holds sole investment power over 1,835,668 shares of common stock of the Issuer (the Shares) held by CAYMAN, 5,844,131 Shares held by SSFQP and 1,906,831 Shares held by SSPE. Greenhouse and Stettner are members of: SSCAY, the general partner of CAYMAN; MGP, the general partner of SSFQP; and MG, the general partner of SSPE. Greenhouse and Stettner are also controlling principals of AWM. Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. AWM Investment Company, Inc. Adam Stettner 02/14/2025