Hruby Dennis E 4

What Happened

• Dennis E. Hruby, EVP & Chief Scientific Officer of SIGA Technologies (SIGA), had restricted stock units (RSUs) vest on March 13, 2026. The filing shows a grant/award conversion of 54,942 RSUs into common stock (reported at $0.00). To satisfy tax withholding on the vesting, the issuer withheld 3,955 shares at the closing price of $5.26, a withholding value of $20,803.
• The filing also reports derivative-related entries (coded "M") at $0.00, which reflect the conversion/exercise of derivative awards into shares in connection with the vesting. This was not a cash purchase or open-market sale — it was an issuance from vested RSUs (a routine, non-speculative compensation event).

Key Details

• Transaction date: March 13, 2026; Form 4 filed March 17, 2026 (timely).
• Shares acquired from vesting: 54,942 RSUs converted to common stock (reported $0.00).
• Shares withheld for taxes: 3,955 shares at $5.26/share = $20,803 (cashless withholding by issuer).
• Transaction codes: A = Award/Grant (RSU vesting); M = exercise/conversion of derivative; F = tax withholding.
• Post-transaction holdings: Not specified in the provided filing excerpt.
• Footnotes: (1) One-third of RSUs granted on March 13, 2025 vested; (2) Withholding based on $5.26 closing price; (3) RSUs vest one-third each year over three years.

Context

• This is a standard equity compensation vesting and tax-withholding event, not an open-market buy or sale. Withholding of shares to cover taxes (cashless) is routine and does not necessarily indicate a change in insider sentiment.