Avalanche Treasury (AVAT) CFO Sean Ostrower Receives RSU Award

What Happened
Sean W. Ostrower, Chief Financial Officer of Avalanche Treasury Corp (AVAT), was granted 299,401 restricted stock units (RSUs) on Sept 28, 2026 (award code A). Concurrently, 15,541 shares were withheld by the issuer to satisfy tax withholding upon RSU vesting (code F) — those withheld shares were recorded as disposed at $1.90 each for a total tax withholding amount of $29,528. The RSUs themselves were granted at $0.00 (no cash purchase).

Key Details

• Transaction dates and prices:
  • 2026-09-28: Award of 299,401 RSUs (price $0.00, code A).
  • 2026-09-30: 15,541 shares withheld for taxes at $1.90 each = $29,528 (code F).
• Shares owned after transaction: Not specified in the provided filing.
• Footnotes of note:
  • F1: The RSUs vest 1/8 on each of the first eight six‑month anniversaries of March 9, 2026; each RSU converts to one share upon vesting.
  • F2: The 15,541 shares were withheld by the issuer to satisfy tax withholding upon RSU vesting (i.e., routine withholding, not an open‑market sale).
• Timeliness: Form filed on Sept 30, 2026 for a report period of Sept 28, 2026 — filing appears timely (no late filing indicated).

Context
This was an equity award (RSUs) to an executive, not an open‑market purchase or sale by the insider. The withheld shares reflect tax withholding on vesting and are routine; they do not necessarily indicate any change in the insider’s view of the company. The RSU vesting schedule means shares will be delivered over time (eight six‑month installments starting from the referenced anniversary dates).