Soligenix grants director options at $0.38

Director Diane L. Parks received 78,947 stock options in Soligenix, Inc. with a $0.38 exercise price, vesting through 2027.

Rhea-AI Filing Summary

SOLIGENIX, INC. (SNGX) reported that director Diane L. Parks received a grant of stock options covering 78,947 shares of common stock on September 17, 2026. The options have an exercise price of $0.38 per share, expire on September 16, 2036, and vest ratably on four dates through September 17, 2027.

Insider Trade Summary

Grant/Award: 78,947 shares

Grant/Award 1 txn

Insider Parks Diane L.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy) F1	78,947	$0.00	$0.00

Holdings After Transaction: Stock Option (Right to Buy) — 78,947 contracts (Direct)

Footnotes (1)

1. F1. The stock option vests ratably on each of December 17, 2026, March 17, 2027, June 17, 2027 and September 17, 2027.

Key Figures

Stock options granted: 78,947 options Exercise price: $0.38 per share Shares underlying options: 78,947 shares +2 more

5 metrics

Stock options granted 78,947 options Grant to director Diane L. Parks on September 17, 2026

Exercise price $0.38 per share Exercise price for the 78,947 stock options

Shares underlying options 78,947 shares Common stock underlying the option grant

Option expiration date September 16, 2036 Expiration of Diane L. Parks’ stock options

Vesting dates December 17, 2026; March 17, 2027; June 17, 2027; September 17, 2027 Options vest ratably on these four dates

Key Terms

Stock Option (Right to Buy), exercise price, vests ratably, expiration date

4 terms

Stock Option (Right to Buy) financial

"The security is described as Stock Option (Right to Buy)."

exercise price financial

"The option has an exercise price of $0.38 per share."

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vests ratably financial

"The stock option vests ratably on each of December 17, 2026, March 17, 2027, June 17, 2027 and September 17, 2027."

expiration date financial

"The options expire on September 16, 2036."

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Soligenix (SNGX) report for Diane L. Parks?

Soligenix reported that director Diane L. Parks received a grant of 78,947 stock options for common stock on September 17, 2026 as part of her equity compensation.

What is the exercise price of the new stock options granted at SNGX?

The stock options granted to Diane L. Parks have an exercise price of $0.38 per share, meaning she can buy Soligenix common stock at this price when the options are vested and exercised before expiration.

When do Diane L. Parks’ Soligenix (SNGX) options vest?

The options vest ratably on four dates: December 17, 2026, March 17, 2027, June 17, 2027, and September 17, 2027, spreading the vesting over roughly one year.

When do the newly granted Soligenix (SNGX) stock options expire?

The stock options granted to Diane L. Parks expire on September 16, 2036. She must exercise any vested options on or before this date, or they will lapse.

How many Soligenix (SNGX) options does Diane L. Parks hold after this grant?

After this grant, Diane L. Parks holds 78,947 stock options for Soligenix common stock as reported, all linked to this single option award.

Were the Soligenix (SNGX) option grants to Diane L. Parks under a Rule 10b5-1 plan?

No. The filing indicates that no Rule 10b5-1 trading plan governs this option grant; it is reported as a direct award without such a plan.

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

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Available on EDGAR 09/18/2026 - 04:12 PM Accepted by SEC EDGAR 09/18/2026 - 04:11 PM Learn about SEC filing dates

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^*

Parks Diane L.

(Last) (First) (Middle)

C/O SOLIGENIX, INC.

29 EMMONS DRIVE, SUITE B-10

(Street)

PRINCETON NEW JERSEY 08540

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/17/2026

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

X	Form 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)
			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)	$0.38	09/17/2026		A		78,947		(1)	09/16/2036	Common Stock	78,947	$0	78,947	D

Explanation of Responses:

1. The stock option vests ratably on each of December 17, 2026, March 17, 2027, June 17, 2027 and September 17, 2027.

	/s/ Diane L. Parks	09/18/2026
	** 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.
* Form 4: SEC 1474 (03-26)