Director Stein exits Data Storage Corp (NASDAQ: DTST) stake via sale

Rhea-AI Filing Summary

Data Storage Corp director Clifford Stein reported selling 280,850 shares of common stock to the company in an issuer tender offer at $5.2 per share, leaving him with no directly held shares.

The sale took place on January 14, 2026 and was reported as a disposition of non-derivative common stock. Following this transaction, Stein’s reported beneficial ownership of Data Storage Corp common stock is shown as zero shares held directly, indicating a full exit from his directly owned position through the tender offer.

Insights

Insider transactions analyst

Director Clifford Stein tendered 280,850 DTST shares back to the issuer, ending his direct stake.

Director Clifford Stein disposed of 280,850 shares of Data Storage Corp common stock on January 14, 2026. The shares were sold at $5.2 per share in a single non-derivative transaction, coded as a disposition. This was not an open-market trade but part of a transaction with the issuer.

A footnote explains the sale was to the company under an issuer tender offer that is exempt under Rule 16b-3, which governs certain insider transactions with the issuer. After this tender, Stein’s reported beneficial ownership is 0 shares held directly, suggesting his direct equity exposure in the company’s common stock ended through participation in the offer.

SEC Form 4

FORM 4

UNITED 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
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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^*

Stein Clifford

(Last) (First) (Middle)

C/O DATA STORAGE CORP

244 5TH AVENUE, SUITE 2821

(Street)

NEW YORK NY 10001

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Data Storage Corp [ DTST ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/14/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/14/2026		D		280,850(1)	D	$5.2	0	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents sale of shares to issuer pursuant to issuer tender offer exempt under Rule 16b-3.

	/s/ Wendy Schmittzeh, Attorney-in-fact	01/16/2026
	** Signature of Reporting Person	Date
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.

FAQ

Who is the insider involved in this DTST transaction?

The filing reports a transaction by Clifford Stein, who is identified as a director of Data Storage Corp (DTST).

What did Clifford Stein do with his Data Storage Corp (DTST) shares?

Clifford Stein sold 280,850 shares of Data Storage Corp common stock on January 14, 2026 in a single disposition transaction.

What price was received for the DTST shares sold by Clifford Stein?

The 280,850 Data Storage Corp shares were sold at a price of $5.2 per share.

Was this DTST insider sale an open-market transaction?

No. A footnote states the transaction represents sale of shares to the issuer pursuant to an issuer tender offer that is exempt under Rule 16b-3.

How many DTST shares does Clifford Stein own after this transaction?

Following the reported transaction, the filing shows 0 shares of Data Storage Corp common stock beneficially owned by Clifford Stein in direct form.

What type of security was involved in this DTST insider transaction?

The transaction involved Common Stock of Data Storage Corp (DTST) reported in the non-derivative securities table.