| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Schwartz Harold J | Director, 10%+ Owner | C/O DATA STORAGE CORP, 244 5TH AVENUE, SUITE 2821, NEW YORK | /s/ Wendy Schmittzeh, Attorney-in-fact | 16 Jan 2026 | 0001688899 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DTST | Common Stock | Disposed to Issuer | $4,619,555 | -888,376 | -97% | $5.20 | 28,471 | 14 Jan 2026 | Direct | F1, F2 |
| transaction | DTST | Common Stock | Disposed to Issuer | $39,000 | -7,500 | -100% | $5.20 | 0 | 14 Jan 2026 | Systems Trading, Inc. | F3, F4 |
| Id | Content |
|---|---|
| F1 | Represents sale of shares to issuer pursuant to issuer tender offer exempt under Rule 16b-3. |
| F2 | Reflects a correction to the number of shares owned by the reporting person. Due to an administrative oversight, the reporting person's number of securities beneficially owned following the reported transaction in Item 5 of Table I in prior Form 4s was overstated by 20,735 shares. |
| F3 | Reflects indirect holding of 7,500 shares of common stock that were inadvertently excluded from previous reports filed by the reporting person. |
| F4 | Systems Trading, Inc. is a company owned by the reporting person and of which the reporting person currently serves as Chief Executive Officer and President. |