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Data Storage director exercises 10K RSUs, gets 12K

DTST director Thomas Kempster exercised 10,000 RSUs into common stock and received a new 12,000 RSU grant tied to the 2027 annual meeting.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Data Storage Corp (DTST) director Thomas Kempster reported equity compensation activity on September 2, 2026. He exercised 10,000 restricted stock units (RSUs), which converted on a one-for-one basis into 10,000 shares of common stock, fully vesting a grant originally made on January 29, 2026 and tied to the 2026 Annual Meeting of Stockholders.

On the same date, he also received a new grant of 12,000 RSUs, which will vest in full on the date of Data Storage Corp’s 2027 Annual Meeting of Stockholders, subject to his continued service. No Rule 10b5-1 trading plan is reported for these transactions.

Positive

  • None.

Negative

  • None.
Insider Kempster Thomas
Role Director
Type Security Shares Price Value
Exercise Restricted Stock Unit F1, F2 10,000 $0.00 $0.00
Exercise Common Stock F1, F2 10,000 $0.00 $0.00
Grant/Award Common Stock F1, F3 12,000 $0.00 $0.00
Holdings After Transaction: Restricted Stock Unit — 0 contracts (Direct); Common Stock — 22,000 shares (Direct)
Footnotes (3)
  1. F1. Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.
  2. 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.
  3. 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.
RSUs exercised 10,000 units Restricted stock units converted into common stock on September 2, 2026
Common shares received on RSU conversion 10,000 shares Shares of Data Storage Corp common stock issued from RSU conversion
New RSU grant 12,000 units RSUs granted on September 2, 2026, vesting at the 2027 Annual Meeting of Stockholders
Exercise price per share $0.00 Per-share exercise or conversion price reported for the RSU conversion
RSU grant date (vested award) January 29, 2026 Grant date of RSUs that vested in full on September 2, 2026
Vesting date (2026 RSU grant) September 2, 2026 Date RSUs granted January 29, 2026 vested in full, at the 2026 Annual Meeting
Restricted stock units financial
"Restricted stock units ("RSUs") convert into common stock on a one-for-one basis"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
vested in full financial
"The RSUs vested in full on September 2, 2026, the date of the Issuer's 2026 Annual Meeting"
Annual Meeting of Stockholders financial
"the date of the Issuer's 2026 Annual Meeting of Stockholders"
continued service financial
"subject to the Reporting Person's continued service to the Issuer through the vesting date"

FAQ

What insider transactions did DTST director Thomas Kempster report on September 2, 2026?

He exercised 10,000 restricted stock units into 10,000 shares of common stock and received a new grant of 12,000 RSUs, all reported as direct holdings with a per-share exercise price of $0.00.

How many DTST RSUs did Thomas Kempster exercise and convert to common stock?

Thomas Kempster exercised 10,000 RSUs, which converted into 10,000 shares of common stock on a one-for-one basis. These RSUs were granted on January 29, 2026 and vested in full on September 2, 2026, the date of the 2026 Annual Meeting of Stockholders.

What new RSU award did DTST grant to Thomas Kempster on September 2, 2026?

Data Storage Corp granted Thomas Kempster 12,000 RSUs on September 2, 2026. These units will vest in full on the date of the company’s 2027 Annual Meeting of Stockholders, subject to his continued service through that vesting date.

What is the conversion ratio of Thomas Kempster’s DTST RSUs to common stock?

The filing states that restricted stock units convert into common stock on a one-for-one basis. Thus, each RSU held by Thomas Kempster represents the right to receive one share of Data Storage Corp common stock upon vesting and settlement.

Were Thomas Kempster’s DTST transactions under a Rule 10b5-1 trading plan?

No. The Form 4 indicates that the Rule 10b5-1 checkbox is not marked, and there is no footnote stating that these transactions were executed pursuant to a Rule 10b5-1 trading plan.

What vesting conditions apply to Thomas Kempster’s 12,000 new DTST RSUs?

The 12,000 RSUs granted on September 2, 2026 will vest in full on the date of Data Storage Corp’s 2027 Annual Meeting of Stockholders, and the vesting is conditioned on Thomas Kempster’s continued service to the company through that date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Kempster Thomas

(Last)(First)(Middle)
C/O DATA STORAGE CORPORATION
244 5TH AVENUE, SUITE 2821

(Street)
NEW YORK NEW YORK 10001

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Data Storage Corp [ DTST ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/02/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock09/02/2026M10,000(1)(2)A$010,000D
Common Stock09/02/2026A12,000(1)(3)A$022,000D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Unit(1)$009/02/2026M10,000(2) (2) (2)Common Stock10,000$00D
Explanation of Responses:
1. Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.
2. 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.
3. 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.
/s/ Wendy Schmittzeh, Attorney-in-fact for Thomas Kempster09/04/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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