Corby C Whitaker

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
5 Mar 25	ASPN Aspen Aerogels	Common Stock	Grant	Acquire A	No	No	0	25,510	0.00	155,608
5 Mar 25	ASPN Aspen Aerogels	Common Stock	Payment of exercise	Dispose F	No	No	7.84	936	7.34 k	130,098
5 Mar 25	ASPN Aspen Aerogels	Performance Share Units Common Stock	Grant	Acquire A	No	No	0	51,020	0.00	51,020
5 Mar 25	ASPN Aspen Aerogels	Stock Options Common Stock	Grant	Acquire A	No	No	7.84	35,961	281.93 k	35,961
21 Feb 25	ASPN Aspen Aerogels	Common Stock	Payment of exercise	Dispose F	No	No	8.04	499	4.01 k	131,034
6 May 24	ASPN Aspen Aerogels	Common Stock	Sell	Dispose S	No	No	25.01	55,159	1.38 mm	131,533
6 May 24	ASPN Aspen Aerogels	Common Stock	Option exercise	Acquire M	No	No	3.63	55,159	200.23 k	186,692
6 May 24	ASPN Aspen Aerogels	Stock Options Common Stock	Option exercise	Dispose M	No	No	3.63	55,159	200.23 k	0
8 Mar 24	ASPN Aspen Aerogels	Common Stock	Payment of exercise	Dispose F	No	No	17.02	1,768	30.09 k	131,533
5 Mar 24	ASPN Aspen Aerogels	Common Stock	Grant	Acquire A	No	No	0	8,032	0.00	133,301

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.