[Form 4] Soligenix, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Form 4 Filing Details: Jerome B. Zeldis, Director of Soligenix (SNGX), reported the acquisition of stock options on June 20, 2025. The insider was granted 17,647 stock options with an exercise price of $1.70 per share.

The options have a 10-year term expiring on June 20, 2035, and will vest in four equal installments on:

• September 20, 2025
• December 20, 2025
• March 20, 2026
• June 20, 2026

This equity-based compensation grant aligns the director's interests with shareholders through long-term stock ownership potential. The filing was reported within the required SEC timeline, demonstrating compliance with Section 16(a) reporting obligations.

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
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^*

ZELDIS JEROME B

(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/ Jerome B. Zeldis	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

What stock options did SNGX director Jerome Zeldis receive on June 20, 2025?

Jerome Zeldis received 17,647 stock options with an exercise price of $1.70 per share. These options were granted on June 20, 2025, and will expire on June 20, 2035.

What is the vesting schedule for SNGX director Zeldis's June 2025 stock options?

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

What position does Jerome Zeldis hold at Soligenix (SNGX)?

According to the Form 4 filing, Jerome B. Zeldis serves as a Director of Soligenix (SNGX). This is indicated by the 'X' marked in the Director box under the relationship to issuer section.

How long are Jerome Zeldis's SNGX stock options valid?

The stock options granted to Jerome Zeldis have a 10-year term, with an expiration date of June 20, 2035, as indicated in the derivative securities table of the Form 4.

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

The stock options were granted with an exercise price of $1.70 per share, as shown in the conversion or exercise price column of the derivative securities table.