ASPEN AEROGELS INC

Ticker: ASPN CUSIP: 04523Y105 Class: Common Stock

Clearstead Advisors, LLC's Holding History (CIK: 0000842775)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 20 Value ($000) $0 Avg Close $7.05 Range $5.75 - $9.78

Q2 2025

Shares 12 Value ($000) $0 Avg Close $5.75 Range $4.16 - $6.92

Q4 2023

Shares 160 Value ($000) $3 Avg Close $10.33 Range $6.62 - $17.32

Q3 2023

Shares 100 Value ($000) $1 Avg Close $7.10 Range $5.33 - $8.90

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	20	$0	$7.05	$5.75 - $9.78
Q2 2025	12	$0	$5.75	$4.16 - $6.92
Q4 2023	160	$3	$10.33	$6.62 - $17.32
Q3 2023	100	$1	$7.10	$5.33 - $8.90