Santhosh P. Daniel - 12 Aug 2025 Form 4 Insider Report for ASPEN AEROGELS INC (ASPN)

Role
Chief Accounting Officer
Signature
/s/ Stephanie Pittman, Attorney-in-Fact
Issuer symbol
ASPN
Transactions as of
12 Aug 2025
Transactions value $
-$47,317
Form type
4
Date filed
13 Aug 2025, 17:00
Previous filing
07 Mar 2025
Next filing
15 Sep 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Daniel Santhosh P Chief Accounting Officer C/O ASPEN AEROGELS, INC.,, 30 FORBES ROAD, BLDG B, NORTHBOROUGH /s/ Stephanie Pittman, Attorney-in-Fact 2025-08-13 0001935618

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ASPN Common Stock Sale -$32.2K -4.41K -18.16% $7.31 19.9K 12 Aug 2025 Direct F1
transaction ASPN Common Stock Sale -$15.1K -2K -10.06% $7.54 17.9K 13 Aug 2025 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These transactions were executed in multiple trades at prices ranging from $7.31 to $7.32. The reporting person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.
F2 Represents 17,879 Restricted Stock Units.

Remarks:

Power of Attorney is attached hereto as Exhibit 24.