X0508 4 2026-01-29 0 0001419951 Data Storage Corp DTST 0001688899 Schwartz Harold J C/O DATA STORAGE CORPORATION 244 5TH AVENUE, SUITE 2821 NEW YORK NY 10001 1 0 0 0 0 Restricted Stock Unit 2026-01-29 4 A 0 10000 0 A Common Stock 10000 10000 D Restricted stock units ("RSUs") convert into common stock on a one-for-one basis. Represents the shares of the Issuer's common stock underlying a RSU grant to the Reporting Person on January 29, 2026, which RSUs vest in full on the date of the Issuer's 2026 Annual Meeting of Stockholders, subject to the Reporting Person's continued service to the Issuer through the vesting date. /s/ Wendy Schmittzeh, Attorney-in-fact for Harold J Schwartz 2026-02-02