ASPEN AEROGELS INC

Ticker: ASPN CUSIP: 04523Y105 Class: Common Stock

IRONWOOD INVESTMENT MANAGEMENT LLC's Holding History (CIK: 0001127761)

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

Q4 2025

Shares 127,460 Value ($000) $361 Avg Close $5.16 Range $2.79 - $9.35

Q3 2025

Shares 134,362 Value ($000) $935 Avg Close $7.05 Range $5.75 - $9.78

Q2 2025

Shares 124,324 Value ($000) $736 Avg Close $5.75 Range $4.16 - $6.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	127,460	$361	$5.16	$2.79 - $9.35
Q3 2025	134,362	$935	$7.05	$5.75 - $9.78
Q2 2025	124,324	$736	$5.75	$4.16 - $6.92