Thomas Kempster - 04 Aug 2025 Form 4 Insider Report for Data Storage Corp (DTST)

Reporting relationship: EVP, Director, 10%+ Owner
Issuer ticker: DTST
Reported as of: 04 Aug 2025
Net transaction value: +$52,548
SEC form: 4
Accepted by SEC: 05 Aug 2025, 17:40:55 UTC
Prior SEC filing: 14 Apr 2025
Next SEC filing: 15 Sep 2025
Source filing: View source filing
Reporting owner signature: /s/ Wendy Schmittzeh, Attorney-in-fact

Key filing fact

Thomas Kempster filed Form 4 for Data Storage Corp (DTST) on 05 Aug 2025.

Key facts

This page summarizes Thomas Kempster's Form 4 filing for Data Storage Corp (DTST).
4 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 05 Aug 2025, 17:40.

Change

Previous filing in this sequence was filed on 14 Apr 2025.
Current net transaction value: +$52,548.

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 0001688904 Primary reporting owner

Kempster Thomas

Relationship: EVP, Director, 10%+ Owner
Address: C/O DATA STORAGE CORPORATION, 225 BROADHOLLOW ROAD, SUITE 307, MELVILLE
Signature: /s/ Wendy Schmittzeh, Attorney-in-fact
Signature date: 05 Aug 2025

Reported non-derivative transactions

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

DTST transaction

Common Stock

Options Exercise

Transaction value: $33,332
Shares: +16,666
Change %: +2%
Price: $2.00
Shares after: 855,778
Date: 04 Aug 2025
Ownership: Direct
Footnotes: F1

DTST transaction

Common Stock

Options Exercise

Transaction value: $19,216
Shares: +9,804
Change %: +1.1%
Price: $1.96
Shares after: 865,582
Date: 04 Aug 2025
Ownership: Direct
Footnotes: F2

Reported derivative securities

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

DTST transaction Derivative

Stock Option

Options Exercise

Transaction value: $0
Shares: -16,666
Change %: -67%
Price: $0.000000
Shares after: 8,334
Date: 04 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 16,666
Exercise price: $2.00
Footnotes: F1

DTST transaction Derivative

Stock Option

Options Exercise

Transaction value: $0
Shares: -9,804
Change %: -67%
Price: $0.000000
Shares after: 4,902
Date: 04 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 9,804
Exercise price: $1.96
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Represents the shares of the Issuer's common stock underlying the vested portion of a stock option grant issued to the Reporting Person on March 1, 2023, that was exercised by the Reporting Person on August 4, 2025.

Footnote F2

Represents the shares of the Issuer's common stock underlying the vested portion of a stock option grant issued to the Reporting Person on April 10, 2023, that was exercised by the Reporting Person on August 4, 2025.