Whitaker Corby C 4

What Happened

• Whitaker Corby C, SVP Sales & Marketing at Aspen Aerogels (ASPN), received equity awards on 2026-03-04: 57,462 shares issued as an award (code A) and 77,824 derivative awards (code A) granted at $0.00. On 2026-03-05, 3,907 shares were disposed (code F) to satisfy tax withholding at $3.27 per share, netting $12,776.
• The awards were granted (not purchased); the reported disposal was routine tax withholding rather than an open-market sale.

Key Details

• Transaction dates/prices: 2026-03-04 awards at $0.00; 2026-03-05 tax withholding of 3,907 shares at $3.27 ($12,776).
• Reported holdings after transaction: filing notes 124,588 shares of Common Stock and 82,651 RSUs (per footnote F3).
• Footnotes of note:
  • F1: RSUs vest one-third on each of Mar 4, 2027, 2028 and 2029.
  • F2: Shares were withheld to satisfy minimum statutory tax withholding on RSU vesting.
  • F4: Options (if applicable to the derivative grant) vest on the same 3-year schedule.
• Filing appears timely (transaction date Mar 4, filed Mar 6).

Context

• These were grant/award transactions (not purchases); awards typically vest over multiple years and are long-term compensation.
• The 3,907-share disposition was a tax-withholding event (routine) and should not be interpreted as a discretionary sale of shares.