Daniel Santhosh P 4

What Happened
Daniel Santhosh, Chief Accounting Officer of Aspen Aerogels (ASPN), had 986 shares withheld by the company on 2026-03-05 to satisfy tax withholding on the vesting of restricted stock units (RSUs). The shares were recorded at $3.27 each, a total value of approximately $3,224. This was a tax-withholding disposition (not an open-market sale or bullish purchase).

Key Details

• Transaction date: 2026-03-05; price: $3.27 per share; 986 shares withheld; total value ≈ $3,224.
• Transaction code: F — shares withheld to satisfy tax liability on RSU vesting.
• Shares owned after the transaction (per filing footnote): 5,593 shares of common stock and 9,737 RSUs (see footnote F2).
• Footnote F1: Company withheld shares to meet minimum statutory tax withholding requirements on RSU vesting.
• Filing: Form 4 filed 2026-03-06 (next day), which is timely under normal Form 4 rules.

Context

• This was a routine net share settlement for tax purposes following RSU vesting, not an indicator of a discretionary sale or purchase. Such withholdings are common and do not necessarily reflect the insider’s view on the stock.
• For retail investors, purchases are generally more informative than routine tax withholdings; treat this as administrative rather than a trading signal.