DURNAN JAYMIE A 4

4 · SIGA TECHNOLOGIES INC · Filed Jun 10, 2026

AI-generated summary of this filing

Updated Jun 11, 2026

SIGA Director Jaymie Durnan Sells 7,235 Shares

What Happened

Jaymie A. Durnan, a director of SIGA Technologies, had RSUs that vested and were converted on 2026-06-09. The Form 4 shows an award/derivative entry of 34,169 RSUs and conversion/exercise-related entries for 24,116 derivative units. As part of the settlement, 7,235 shares were transferred to the issuer (disposed) at $4.39 per share, generating $31,762. Other derivative entries on the form show zero-dollar conversions/settlements consistent with RSU processing.

Key Details

Transaction date: 2026-06-09; Form 4 filed 2026-06-10 (timely).
Disposition: 7,235 shares to issuer at $4.39 each = $31,762.
Derivative activity: entries for conversion/exercise of 24,116 units and an award of 34,169 RSUs (derivative).
Shares owned after transaction: not specified in the provided extract of the filing.
Footnotes: RSUs are contingent rights to receive common stock on a one-for-one basis; some RSUs were cash-settled per the board compensation program to address tax obligations. The RSUs were granted June 10, 2025 and fully vested at SIGA’s 2026 annual meeting; up to 10,251 RSUs may be cash-settled at the board’s discretion.

Context

These entries reflect RSU vesting and partial cash-settlement (often used to cover tax withholding), not an open-market sale. Derivative entries showing $0 typically record conversion/settlement mechanics rather than a market sale. Such issuer dispositions in connection with RSU vesting are routine and do not necessarily signal management’s view of the company’s prospects.

Form 4

Period: 2026-06-09

Director

Transactions

Exercise/Conversion
Common Stock, par value $.0001 per share
[F1]
2026-06-09+24,116→ 95,989 total
Disposition to Issuer
Common Stock, par value $.0001 per share
[F2]
2026-06-09$4.39/sh−7,235$31,762→ 88,754 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