Oreola Donini - 12 Oct 2026 Form 4 Insider Report for SOLIGENIX, INC. (SNGX)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
13 Oct 2026, 10:07:45 UTC
Prior SEC filing
12 Dec 2025
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Oreola Donini
Filing notes and source

Key filing fact

Oreola Donini filed Form 4 for SOLIGENIX, INC. (SNGX) on 13 Oct 2026.

Key facts

  • This page summarizes Oreola Donini's Form 4 filing for SOLIGENIX, INC. (SNGX).
  • 6 reported transactions and 6 derivative rows are listed below.
  • Accepted by SEC: 13 Oct 2026, 10:07.

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 0001627575 Primary reporting owner

Donini Oreola

Relationship
CSO
Address
C/O SOLIGENIX, INC., 29 EMMONS DRIVE, SUITE B-10, PRINCETON
Signature
/s/ Oreola Donini
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
-83
Change %
-100%
Price
$0.000000*
Shares after
0
Date
12 Oct 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
83
Exercise price
$640.80
Footnotes
F1
SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares
-145
Change %
-100%
Price
$0.000000*
Shares after
0
Date
12 Oct 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
145
Exercise price
$482.40
SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares
-166
Change %
-100%
Price
$0.000000*
Shares after
0
Date
12 Oct 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
166
Exercise price
$232.80
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
$297.60
SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares
-291
Change %
-100%
Price
$0.000000*
Shares after
0
Date
12 Oct 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
291
Exercise price
$561.60
SNGX transaction Derivative

Stock Option (Right to Buy)

Disposed to Issuer

Transaction value
Shares
-333
Change %
-100%
Price
$0.000000*
Shares after
0
Date
12 Oct 2026
Ownership
Direct
Underlying class
Common Stock
Underlying amount
333
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 1,559 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.

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