ASPEN AEROGELS INC

Ticker: ASPN CUSIP: 04523Y105 Class: Common Stock

BRADLEY FOSTER & SARGENT INC/CT's Holding History (CIK: 0001015086)

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

Q4 2021

Shares 12,362 Value ($000) $616 Avg Close $52.70 Range $43.28 - $65.99

Q3 2021

Shares 15,342 Value ($000) $706 Avg Close $39.64 Range $30.43 - $47.29

Q2 2021

Shares 15,398 Value ($000) $461 Avg Close $20.41 Range $16.33 - $31.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	12,362	$616	$52.70	$43.28 - $65.99
Q3 2021	15,342	$706	$39.64	$30.43 - $47.29
Q2 2021	15,398	$461	$20.41	$16.33 - $31.00