ASPEN AEROGELS INC·4

Mar 10, 5:00 PM ET

Thoele Grant Douglas 4

4 · ASPEN AEROGELS INC · Filed Mar 10, 2026

Research Summary

AI-generated summary of this filing

Updated

Aspen Aerogels (ASPN) CFO Thoele Grant Douglas Withholds 590 Shares for Taxes

What Happened Thoele Grant Douglas (CFO & Treasurer) had 590 shares withheld by Aspen Aerogels to satisfy tax withholding related to the vesting of restricted stock units (RSUs). The shares were withheld at $3.22 per share for a total value of approximately $1,900. This is a routine tax-withholding disposition tied to compensation, not an open-market sale.

Key Details

  • Transaction date and price: 2026-03-08; 590 shares withheld at $3.22/share (total ≈ $1,900).
  • Shares owned after transaction (as reported): 10,111 shares of Common Stock and 67,621 RSUs.
  • Footnotes: F1 — shares were withheld by the registrant to satisfy minimum statutory tax withholding on RSU vesting; F2 — the reported ownership totals above.
  • Filing: Form 4 filed 2026-03-10 (timely filing within the SEC’s two-business-day rule).

Context This was a tax-withholding action (transaction code F) accompanying RSU vesting — effectively a cashless settlement where the company retains shares to cover taxes. Such withholdings are routine and reflect compensation tax obligations rather than a discretionary sale that signals insider sentiment.

Insider Transaction Report

Form 4
Period: 2026-03-08
Thoele Grant Douglas
CFO & Treasurer
Transactions
  • Tax Payment

    Common Stock

    [F1][F2]
    2026-03-08$3.22/sh590$1,90077,732 total
Footnotes (2)
  • [F1]Shares withheld by Registrant to satisfy the minimum statutory tax withholding requirements on vesting of Restricted Stock Units ("RSUs").
  • [F2]Represents 10,111 shares of Common Stock and 67,621 RSUs.
Signature
/s/ Glenn Deegan, Attorney-in-Fact|2026-03-10

Documents

1 file
  • 4
    ownership.xmlPrimary

    4