Marshall Joseph W III 4

4 · SIGA TECHNOLOGIES INC · Filed Jun 10, 2026

AI-generated summary of this filing

Updated Jun 11, 2026

SIGA Director Marshall Joseph W III Sells Shares, Receives RSUs

What Happened

Marshall Joseph W III, a director of SIGA Technologies, reported transactions on June 9, 2026. He received/converted a total of RSU/derivative interests (34,169 shares granted and 24,116 shares converted/exercised) and disposed of 7,235 shares to the issuer at $4.39 per share for proceeds of $31,762.
The filings show: a grant/award (A) of 34,169 RSU-related shares (acquired at $0.00), an exercise/conversion (M) of 24,116 shares, and a disposition (D) of 7,235 shares to the issuer at $4.39 ($31,762). There is also a reported conversion/disposition of 24,116 shares at $0.00 reflecting derivative settlement mechanics.

Key Details

Transaction date: June 9, 2026; Form 4 filed June 10, 2026 (timely).
Sale/disposition: 7,235 shares at $4.39 each, total $31,762.
Awards/conversions: 34,169 shares granted (RSUs) and 24,116 shares reported as converted/exercised (derivative).
Shares owned after transaction: not specified in the filed excerpt.
Relevant footnotes: RSUs are contingent rights to common stock (one-for-one); some RSUs were cash-settled per the Board compensation program to cover tax obligations (footnotes indicate partial cash settlement and that up to 10,251 RSUs may settle in cash at the Board’s discretion). The RSUs were granted June 10, 2025 and fully vested at the 2026 annual meeting.

Context

These transactions involve RSUs/derivative settlement rather than an open-market investment. The partial cash settlement (selling/surrendering shares back to the issuer) is a common practice to cover tax withholding when RSUs vest and does not necessarily indicate a directional view on the company’s stock.
For retail investors: purchases or awards can be informative, but here the cash-settlement component is primarily administrative (tax-related) rather than a market buy decision.

Form 4

Period: 2026-06-09

Director

Transactions

Exercise/Conversion
Common Stock, par value $.0001 per share
[F1]
2026-06-09+24,116→ 253,758 total
Disposition to Issuer
Common Stock, par value $.0001 per share
[F2]
2026-06-09$4.39/sh−7,235$31,762→ 246,523 total
Exercise/Conversion
Restricted Stock Units
[F1][F3]
2026-06-09−24,116→ 0 total
→ Common Stock, par value $.0001 per share (24,116 underlying)
Award
Restricted Stock Units
[F4][F5]
2026-06-09+34,169→ 34,169 total
→ Common Stock, par value $.0001 per share (34,169 underlying)

Footnotes (5)

[F1]Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.
[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.
[F3]The RSUs were granted on June 10, 2025, and fully vested on the date of the Company's 2026 annual meeting of stockholders.
[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.
[F5]The RSUs fully vest on the date of the Company's 2027 annual meeting of stockholders.

Signature

/s/ Kevin Buckley, as Attorney-in-Fact|2026-06-10

1 file