Corby C. Whitaker - 23 Feb 2022 Form 4 Insider Report for ASPEN AEROGELS INC (ASPN)

Role: SVP, Sales and Marketing
Signature: /s/ Poongunran Muthukumaran, Attorney-in-Fact
Issuer symbol: ASPN
Transactions as of: 23 Feb 2022
Net transactions value: +$112,495
Form type: 4
Filing time: 25 Feb 2022, 18:14:00 UTC
Previous filing: 10 Nov 2021
Next filing: 01 Mar 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ASPN	Common Stock	Award	$112,495	+4,279	+3.9%	$26.29	114,459	23 Feb 2022	Direct	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ASPN	Stock Option (Right to Buy)	Award	$0	+22,408		$0.000000	22,408	23 Feb 2022	Common Stock	22,408	$26.29	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each Restricted Stock Unit ("RSU") represents the right to receive one share of Common Stock upon vesting. The RSUs vest as to one-third of the shares on February 23, 2023, an additional one-third of the shares on February 23, 2024 and the remaining one-third of the shares on February 23, 2025.
F2	Represents 91,346 shares of Common Stock and 23,113 RSUs.
F3	The options vest as to one-third of the shares on February 23, 2023, and additional one-third of the shares on February 23, 2024 and the remaining one-third of the shares on February 23, 2025.