Data Storage Corp

DTST· Nasdaq

Since Oct 5, 2025

Transactions: 15
Purchases: 0
Sales: 15
Purchase value: $0.00
Sale value: $722.89K

Values are shares multiplied by reported price when both were supplied, each trade counted once however many filers reported it.

Kempster ThomasDirector

Filed Sep 14, 2026Period of report Sep 11, 20260001731122-26-001242

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleSep 11, 2026	Common Stock^F1^F2	3,500	$2.925	$10.24K	18,500	Direct

Filing footnotes · 2

F1Represents shares of the Issuer's common stock sold to satisfy tax withholding obligations of Thomas Kempster (the "Reporting Person").
F2The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.90 through $2.97. The Reporting Person undertakes to provide to the registrant, any security holder of the registrant, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

Open on SEC EDGAR

Mitchell Uwayne A.Director

Filed Sep 11, 2026Period of report Sep 11, 20260001731122-26-001229

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleSep 11, 2026	Common Stock^F1^F2	3,000	$2.95	$8.85K	19,000

Argen JohnDirector

Filed Sep 11, 2026Period of report Sep 10, 20260001731122-26-001231

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleSep 10, 2026	Common Stock^F1^F2	3,000	$2.97	$8.91K	19,000

Stein CliffordDirector

Filed Sep 11, 2026Period of report Sep 10, 20260001731122-26-001230

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleSep 10, 2026	Common Stock^F1^F2	3,991	$3.05	$12.17K	18,009

Piluso Charles M.Director · Chairman and CEO · 10% owner

Filed May 26, 2026Period of report May 21, 20260001731122-26-000794

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleMay 26, 2026	Common Stock^F1^F4	32,610	$3.82	$124.57K	223,074

Maglione Lawrence A.Director

Filed Dec 15, 2025Period of report Dec 11, 20250001731122-25-001676

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleDec 12, 2025	Common Stock	520	$5.02	$2.61K	27,530	Direct

Correll Todd A.Director

Filed Dec 15, 2025Period of report Dec 11, 20250001731122-25-001675

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleDec 11, 2025	Common Stock	10,471	$4.96	$51.94K	33,540	Direct

Piluso Charles M.Director · Chairman and CEO · 10% owner

Filed Dec 12, 2025Period of report Dec 10, 20250001731122-25-001669

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleDec 10, 2025	Common Stock^F1^F2	20,089	$4.9934	$100.31K	413,291

Kempster ThomasDirector · 10% owner

Filed Dec 12, 2025Period of report Dec 10, 20250001731122-25-001668

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleDec 10, 2025	Common Stock^F1^F2	6,846	$4.9934	$34.18K	871,972

Panagiotakos ChristosChief Financial Officer

Filed Dec 12, 2025Period of report Dec 10, 20250001731122-25-001667

Transaction	Security	Shares	Price	ValueValue (shares × price)	Held after	Ownership
SaleDec 10, 2025	Common Stock^F1^F2	11,053	$4.9934	$55.19K	40,507

P and S transaction codes only. Grants, gifts, option exercises, tax withholding, and Form 144 notices are not counted as purchases or sales. A row whose filed price fails a plausibility check, or that is not common stock, is listed but left out of the values; a trade reported by several filers is counted once.

Filing footnotes · 11

F1Represents shares of common stock issued upon exercise of a stock option that was issued to the Reporting Person on December 14, 2017 which were fully vested on the third anniversary of the date of grant. The Option is exercisable for a term of 10 years.
F10Represents 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.
F11Represents shares withheld to cover the exercise price of the options exercised.
F2Represents 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.
F3Represents 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.
F4Represents 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.
F5Represents 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.
F6Represents 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.
F7Represents 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.
F8Represents 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.
F9Represents 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.

F1Represents 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.
F10Represents shares withheld to cover the exercise price of the options exercised.
F2Represents 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.
F3Represents 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.
F4Represents 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.
F5Represents 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.
F6Represents 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.
F7Represents 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.
F8Represents 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.
F9Represents 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.