Clifford Stein - 02 Sep 2026 Form 4 Insider Report for Data Storage Corp (DTST)

Reporting relationship: Director
Issuer ticker: DTST
Reported as of: 02 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Sep 2026, 19:30:36 UTC
Prior SEC filing: 02 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Wendy Schmittzeh, Attorney-in-fact for Clifford Stein

Key filing fact

Clifford Stein filed Form 4 for Data Storage Corp (DTST) on 04 Sep 2026.

Key facts

This page summarizes Clifford Stein's Form 4 filing for Data Storage Corp (DTST).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 04 Sep 2026, 19:30.

Change

Previous filing in this sequence was filed on 02 Feb 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001535036 Primary reporting owner

Stein Clifford

Relationship: Director
Address: C/O DATA STORAGE CORPORATION, 244 5TH AVENUE, SUITE 2821, NEW YORK
Signature: /s/ Wendy Schmittzeh, Attorney-in-fact for Clifford Stein
Signature date: 04 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

DTST transaction

Common Stock

Options Exercise

Transaction value
Shares: +10,000
Change %
Price: $0.000000^*
Shares after: 10,000
Date: 02 Sep 2026
Ownership: Direct
Footnotes: F1, F2

DTST transaction

Common Stock

Award

Transaction value
Shares: +12,000
Change %: +120%
Price: $0.000000^*
Shares after: 22,000
Date: 02 Sep 2026
Ownership: Direct
Footnotes: F1, F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

DTST transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -10,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 02 Sep 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 10,000
Exercise price: $0.000000
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

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

Footnote F2

Represents shares of common stock underlying the RSUs granted to the Reporting Person on January 29, 2026. The RSUs vested in full on September 2, 2026, the date of the Issuer's 2026 Annual Meeting of Stockholders.

Footnote F3

Represents the shares of the Issuer's common stock underlying a RSU grant to the Reporting Person on September 2, 2026, which RSUs will vest in full on the date of the Issuer's 2027 Annual Meeting of Stockholders, subject to the Reporting Person's continued service to the Issuer through the vesting date.