Christopher J. Schaber - 12 Oct 2026 Form 4 Insider Report for SOLIGENIX, INC. (SNGX)

Reporting relationship: CHAIRMAN, CEO AND PRESIDENT, Director
Issuer ticker: SNGX
Reported as of: 12 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 13 Oct 2026, 10:06:36 UTC
Prior SEC filing: 12 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Christopher J. Schaber

Filing notes and source

Key filing fact

Christopher J. Schaber filed Form 4 for SOLIGENIX, INC. (SNGX) on 13 Oct 2026.

Key facts

This page summarizes Christopher J. Schaber's Form 4 filing for SOLIGENIX, INC. (SNGX).
5 reported transactions and 5 derivative rows are listed below.
Accepted by SEC: 13 Oct 2026, 10:06.

Change

Previous filing in this sequence was filed on 12 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001068029 Primary reporting owner

SCHABER CHRISTOPHER J

Relationship: CHAIRMAN, CEO AND PRESIDENT, Director
Address: C/O SOLIGENIX, INC., 29 EMMONS DRIVE, SUITE B-10, PRINCETON
Signature: /s/ Christopher J. Schaber
Signature date: 12 Oct 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares: -250
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 12 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 250
Exercise price: $482.40
Footnotes: F1

SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares: -250
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 12 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 250
Exercise price: $232.80

SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares: -52
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 12 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 52
Exercise price: $165.60

SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares: -197
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 12 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 197
Exercise price: $165.60

SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares: -583
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 12 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 583
Exercise price: $129.60

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

On October 12, 2026, the Reporting Person voluntarily surrendered stock options exercisable for an aggregate of 2,832 shares of Common Stock with exercise prices set forth in the table above to the Issuer for cancellation for no consideration. The cancellation is exempt from Section 16(b) of the Exchange Act pursuant to Rule 16b-3(e) and Rule 16b-6(d), and exempt from the reporting requirements of Section 16(a) pursuant to Rule 16a-4(d). The Reporting Person is voluntarily reporting this transaction.