March 5, 2026 · Form 4 insider transaction
Young Donald R sold 8,618 shares of Aspen Aerogels, Inc. at $3.27 per share, a transaction worth $28.2K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 1 day after the transaction.
Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units ("RSUs").; Represents 430,387 shares of Common Stock and 211,722 RSUs.