X0508 4 2025-12-12 0 0001419951 Data Storage Corp DTST 0001803509 Grover Matthew C/O DATA STORAGE CORP 244 5TH AVENUE, SUITE 2821 NEW YORK NY 10001 1 0 0 0 0 Common Stock 2025-12-12 4 M 0 627 2.16 A 33542 D Common Stock 2025-12-12 4 M 0 2500 3.23 A 36042 D Common Stock 2025-12-12 4 M 0 2500 2.45 A 38542 D Common Stock 2025-12-12 4 M 0 2500 2.04 A 41042 D Common Stock 2025-12-12 4 M 0 2500 1.48 A 43542 D Common Stock 2025-12-12 4 M 0 2500 1.82 A 46042 D Common Stock 2025-12-12 4 M 0 2500 2.33 A 48542 D Common Stock 2025-12-12 4 M 0 2500 3.24 A 51042 D Common Stock 2025-12-12 4 M 0 2500 2.88 A 53542 D Common Stock 2025-12-12 4 F 0 10190 4.97 D 43352 D Stock Option 2.16 2025-12-11 4 M 0 627 0 D Common Stock 627 0 D Stock Option 3.23 2025-12-11 4 M 0 2500 0 D Common Stock 2500 0 D Stock Option 2.45 2025-12-11 4 M 0 2500 0 D Common Stock 2500 0 D Stock Option 2.04 2025-12-11 4 M 0 2500 0 D Common Stock 2500 0 D Stock Option 1.48 2025-12-11 4 M 0 2500 0 D Common Stock 2500 0 D Stock Option 1.82 2025-12-11 4 M 0 2500 0 D Common Stock 2500 0 D Stock Option 2.33 2025-12-11 4 M 0 2500 0 D Common Stock 2500 0 D Stock Option 3.24 2025-12-11 4 M 0 2500 0 D Common Stock 2500 0 D Stock Option 2.88 2025-12-11 4 M 0 2500 0 D Common Stock 2500 0 D Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on December 11, 2019 which were fully vested on the third anniversary of the date of grant. The Option is exercisable for a term of 10 years. Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on March 31, 2022 which were fully vested on the third anniversary of the date of grant. The Option is exercisable for a term of 10 years. Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on June 30, 2022 which were fully vested on the third anniversary of the date of grant. The Option is exercisable for a term of 10 years. Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on September 30, 2022, the unexercised portion of which vested in full immediately upon consummation of the divestiture of the Issuer's CloudFirst business on September 11, 2025. The Option is exercisable for a term of 10 years. Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on December 30, 2022, the unexercised portion of which vested in full immediately upon consummation of the divestiture of the Issuer's CloudFirst business on September 11, 2025. The Option is exercisable for a term of 10 years. Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on March 31, 2023, the unexercised portion of which vested in full immediately upon consummation of the divestiture of the Issuer's CloudFirst business on September 11, 2025. The Option is exercisable for a term of 10 years. Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on June 30, 2023, the unexercised portion of which vested in full immediately upon consummation of the divestiture of the Issuer's CloudFirst business on September 11, 2025. The Option is exercisable for a term of 10 years. Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on September 29, 2023, which vested in full immediately upon consummation of the divestiture of the Issuer's CloudFirst business on September 11, 2025. The Option is exercisable for a term of 10 years. Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on December 31, 2023, which vested in full immediately upon consummation of the divestiture of the Issuer's CloudFirst business on September 11, 2025. The Option is exercisable for a term of 10 years. Represents shares withheld to cover the exercise price of the options exercised. /s/ Wendy Schmittzeh, Attorney-in-fact 2025-12-15