[Form 4] Soligenix, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Form 4 filing reveals that Robert J. Rubin, Director at Soligenix, received a stock option grant on June 20, 2025. The derivative securities transaction details include:

• Granted 17,647 stock options to purchase common stock
• Exercise price set at $1.70 per share
• Options expire on June 20, 2035
• Vesting schedule occurs in four equal installments: - September 20, 2025 - December 20, 2025 - March 20, 2026 - June 20, 2026

This equity compensation grant aligns the director's interests with shareholders through a standard 10-year term and quarterly vesting schedule over one year. The transaction was reported in compliance with SEC Section 16 requirements for insider trading disclosure.

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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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^*

RUBIN ROBERT J.

(Last) (First) (Middle)

C/O SOLIGENIX, INC.

29 EMMONS DRIVE, SUITE B-10

(Street)

PRINCETON NJ 08540

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SOLIGENIX, INC. [ SNGX ]

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)
06/20/2025

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

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
Stock Option (Right to Buy)	$1.7	06/20/2025		A		17,647		(1)	06/20/2035	Common Stock	17,647	$0	17,647	D

Explanation of Responses:

1. The stock option vests ratably on each of September 20, 2025, December 20, 2025, March 20, 2026 and June 20, 2026.

	/s/ Robert J. Rubin	06/20/2025
	** 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

How many stock options did SNGX director Robert J. Rubin receive on June 20, 2025?

Robert J. Rubin received 17,647 stock options (right to buy) of SNGX common stock on June 20, 2025, with an exercise price of $1.70 per share.

What is the vesting schedule for SNGX director Rubin's stock options granted in June 2025?

The stock options vest in four equal installments on: September 20, 2025, December 20, 2025, March 20, 2026, and June 20, 2026.

When do the SNGX stock options granted to Robert Rubin expire?

The stock options expire on June 20, 2035, ten years after the grant date.

What is Robert J. Rubin's role at SNGX according to the Form 4?

According to the Form 4 filing, Robert J. Rubin serves as a Director of Soligenix, Inc. (SNGX).

What was the exercise price of the SNGX stock options granted to Robert Rubin in June 2025?

The exercise price (conversion price) of the stock options granted to Robert Rubin was $1.70 per share.