Corby C. Whitaker - 08 Mar 2026 Form 4 Insider Report for ASPEN AEROGELS INC (ASPN)

Role
Chief Commercial Officer
Signature
/s/ Glenn Deegan, Attorney-in-Fact
Issuer symbol
ASPN
Transactions as of
08 Mar 2026
Net transactions value
$0
Form type
4
Filing time
10 Mar 2026, 17:00:13 UTC
Previous filing
06 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Whitaker Corby C Chief Commercial Officer C/O ASPEN AEROGELS, INC.,, 30 FORBES ROAD, BLDG B, NORTHBOROUGH /s/ Glenn Deegan, Attorney-in-Fact 10 Mar 2026 0001610273

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ASPN Common Stock Tax liability -1,924 -0.93% $3.22* 205,315 08 Mar 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 1. Shares withheld by Registrant to satisfy minimum statutory tax withholding requirements on vesting of Restricted Stock Units ("RSUs").
F2 Represents 128,170 shares of Common Stock and 77,145 RSUs.