Jaymie A. Durnan - 09 Jun 2026 Form 4 Insider Report for SIGA TECHNOLOGIES INC (SIGA)

Reporting relationship: Director
Issuer ticker: SIGA
Reported as of: 09 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 10 Jun 2026, 21:18:14 UTC
Prior SEC filing: 11 Jun 2025
Source filing: View source filing
Reporting owner signature: /s/ Kevin Buckley, as Attorney-in-Fact

Key filing fact

Jaymie A. Durnan filed Form 4 for SIGA TECHNOLOGIES INC (SIGA) on 10 Jun 2026.

Key facts

This page summarizes Jaymie A. Durnan's Form 4 filing for SIGA TECHNOLOGIES INC (SIGA).
4 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 10 Jun 2026, 21:18.

Change

Previous filing in this sequence was filed on 11 Jun 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 0001187313 Primary reporting owner

DURNAN JAYMIE A

Relationship: Director
Address: C/O SIGA TECHNOLOGIES, INC., 31 EAST 62ND STREET, NEW YORK
Signature: /s/ Kevin Buckley, as Attorney-in-Fact
Signature date: 10 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SIGA transaction

Common Stock, par value $.0001 per share

Options Exercise

Transaction value
Shares: +24,116
Change %: +34%
Price
Shares after: 95,989
Date: 09 Jun 2026
Ownership: Direct
Footnotes: F1

SIGA transaction

Common Stock, par value $.0001 per share

Disposed to Issuer

Transaction value
Shares: -7,235
Change %: -7.5%
Price: $4.39^*
Shares after: 88,754
Date: 09 Jun 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

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

SIGA transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -24,116
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 09 Jun 2026
Ownership: Direct
Underlying class: Common Stock, par value $.0001 per share
Underlying amount: 24,116
Exercise price
Footnotes: F1, F3

SIGA transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +34,169
Change %
Price: $0.000000^*
Shares after: 34,169
Date: 09 Jun 2026
Ownership: Direct
Underlying class: Common Stock, par value $.0001 per share
Underlying amount: 34,169
Exercise price
Footnotes: F4, F5

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

Footnote F2

Reflects RSUs that were cash-settled, per the terms of the compensation program for Board Directors and as noted on the Form 4 filed on June 11, 2025. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

Footnote F3

The RSUs were granted on June 10, 2025, and fully vested on the date of the Company's 2026 annual meeting of stockholders.

Footnote F4

RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 10,251 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the Board of Directors.

Footnote F5

The RSUs fully vest on the date of the Company's 2027 annual meeting of stockholders.