Data Storage Corp — Director's Dealing 2025

Sep 15, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Data Storage Corp (DTST)
CIK: 0001419951
Period of Report: 2025-09-11

Reporting Person: Piluso Charles M. (Director, Chairman and CEO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-11	Common Stock	M	9804	—	Acquired	423963	Direct
2025-09-11	Common Stock	M	9417	—	Acquired	433380	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-09-11	Restricted Stock Unit	$	M	9804	Disposed		Common Stock (9804)	Direct
2025-09-11	Restricted Stock Unit	$	M	9417	Disposed		Common Stock (9417)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	16667	Indirect
Common Stock	65083	Indirect
Common Stock	230116	Indirect
Common Stock	230116	Indirect

Footnotes

F1: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.

F2: Represents shares of the Issuer's common stock underlying the unvested portion of an RSU granted to the Reporting Person on March 1, 2023, which unvested RSUs vested in full immediately upon consummation of the divestiture of the Issuer's CloudFirst business on September 11, 2025.

F3: Represents shares of the Issuer's common stock underlying the unvested portion of an RSU granted to the Reporting Person on March 28, 2023, which unvested RSUs vested in full immediately upon consummation of the divestiture of the Issuer's CloudFirst business on September 11, 2025.

F4: The Reporting Person is a Managing Member of Piluso Family Associates, together with his spouse. The Reporting Person is a Managing Member of Piluso Family Associates LLC, together with his spouse.

F5: The Reporting Person's spouse is the beneficiary of The Lasata 2012 Trust dated 5/4/12 (the "Lasata Trust") and the Reporting Person's spouse, together with Lawrence Maglione, a director of the Issuer, are the co-trustees of the Lasata Trust.

F6: The Reporting Person is the beneficiary of The Bella Vita 2012 Trust dated 5/4/12 (the "Bella Vita Trust") and the Reporting Person, together with his spouse, are the co-trustees thereof.

F7: The amount of securities beneficially owned following the reported transaction by the Reporting Person is correctly reported on this Form 4. The amount of securities beneficially owned following the reported transaction by the Reporting Person has been adjusted to correct an immaterial error in the amount of securities beneficially owned following the reported transaction as disclosed in a prior Form 4 filing that was filed with the Securities and Exchange Commission on 06/11/2025.