Aspen Aerogels (ASPN) SC 13G/A ASPEN AEROGELS / GEORGE KAISER FAMILY FOUNDATION ownership change

Exhibit 99.1

JOINT FILING AGREEMENT

PURSUANT TO RULE 13d-1(k)(1)

The undersigned acknowledge and agree that the foregoing statement of Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement of Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that it knows or has reason to believe that such information is inaccurate.  This Agreement may be executed in any number of counterparts and all of such counterparts taken together shall constitute one and the same instrument.

Dated:  October 22, 2024
George Kaiser Family Foundation
By:	/s/ Kenneth J. Levit
Kenneth J. Levit
Executive Director
GKFF Ventures I, LLC
By:	/s/ Kenneth J. Levit
Kenneth J. Levit
President
By:	/s/ Kenneth J. Levit
Kenneth J. Levit, Individually