Miller Larry R. 4

What Happened

• Larry R. Miller, General Counsel of SIGA Technologies, had 6,920 restricted stock units (RSUs vest) convert into common stock on March 25, 2026. The filing shows 6,920 shares acquired at $0.00 (vesting). To satisfy tax withholding, the issuer withheld 3,526 shares valued at $4.99 each (the March 25 closing price), totaling $17,595. The net result is 3,394 shares added to his holdings (6,920 vested − 3,526 withheld).
• This was not an open‑market purchase or a sale for investment reasons; it was a routine vesting of an award with a cashless tax withholding.

Key Details

• Transaction date: March 25, 2026; Form 4 filed March 26, 2026 (appears timely).
• Vesting/conversion: 6,920 RSUs converted to 6,920 shares (reported at $0.00 per share).
• Tax withholding: 3,526 shares withheld at $4.99 per share = $17,595.
• Net shares received: 3,394 shares.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Footnotes: F1 confirms the shares came from one‑third of RSUs granted March 25, 2024; F2 explains issuer withheld shares to satisfy tax withholding using the $4.99 closing price; F3 notes RSUs vest one‑third per year over three years.
• Transaction codes: M = exercise/conversion of derivative (RSU conversion); F = tax withholding.

Context

• RSUs convert to common shares one‑for‑one when they vest. Withholding some vested shares to cover taxes (a cashless withholding) is a common administrative step and does not by itself indicate insider sentiment.
• This is an award/vesting event rather than a market buy or sale; retail investors generally view such filings as routine compensation-related transactions.