ASPEN AEROGELS INC

Ticker: ASPN CUSIP: 04523Y105 Class: Common Stock

BlackRock, Inc.'s Holding History (CIK: 0002012383)

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

Q4 2025

Shares 4,929,239 Value ($000) $13,950 Avg Close $5.16 Range $2.79 - $9.35

Q3 2025

Shares 4,977,558 Value ($000) $34,644 Avg Close $7.05 Range $5.75 - $9.78

Q2 2025

Shares 4,977,186 Value ($000) $29,465 Avg Close $5.75 Range $4.16 - $6.92

Q1 2025

Shares 4,960,172 Value ($000) $31,696 Avg Close $9.64 Range $6.23 - $14.30

Q4 2024

Shares 5,001,205 Value ($000) $59,414 Avg Close $17.05 Range $11.59 - $27.25

Q3 2024

Shares 4,664,325 Value ($000) $129,155 Avg Close $25.02 Range $16.78 - $33.15

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,929,239	$13,950	$5.16	$2.79 - $9.35
Q3 2025	4,977,558	$34,644	$7.05	$5.75 - $9.78
Q2 2025	4,977,186	$29,465	$5.75	$4.16 - $6.92
Q1 2025	4,960,172	$31,696	$9.64	$6.23 - $14.30
Q4 2024	5,001,205	$59,414	$17.05	$11.59 - $27.25
Q3 2024	4,664,325	$129,155	$25.02	$16.78 - $33.15