ASPEN AEROGELS INC

Ticker: ASPN CUSIP: 04523Y105 Class: Common Stock

ARIEL INVESTMENTS, LLC's Holding History (CIK: 0000936753)

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

Q3 2019

Shares 444,331 Value ($000) $2,630 Avg Close $6.36 Range $5.53 - $7.50

Q2 2019

Shares 679,817 Value ($000) $4,847 Avg Close $4.54 Range $2.42 - $7.15

Q1 2019

Shares 1,465,380 Value ($000) $3,737 Avg Close $2.97 Range $2.13 - $3.79

Q4 2018

Shares 1,826,280 Value ($000) $3,890 Avg Close $3.39 Range $1.60 - $4.77

Q3 2018

Shares 1,838,989 Value ($000) $8,404 Avg Close $4.87 Range $4.00 - $5.27

Q2 2018

Shares 1,657,889 Value ($000) $8,124 Avg Close $4.75 Range $4.03 - $5.32

Q1 2018

Shares 1,202,956 Value ($000) $5,137 Avg Close $4.73 Range $4.18 - $5.58

Q4 2017

Shares 1,090,898 Value ($000) $5,324 Avg Close $4.66 Range $4.12 - $5.14

Q3 2017

Shares 1,095,517 Value ($000) $4,765 Avg Close $4.37 Range $3.99 - $4.90

Q2 2017

Shares 1,093,997 Value ($000) $4,868 Avg Close $4.22 Range $3.95 - $4.62

Q1 2017

Shares 1,483,872 Value ($000) $6,158 Avg Close $4.26 Range $3.84 - $4.86

Q4 2016

Shares 1,655,326 Value ($000) $6,836 Avg Close $4.87 Range $3.61 - $6.71

Q3 2016

Shares 721,737 Value ($000) $4,302 Avg Close $5.04 Range $4.42 - $6.29

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	444,331	$2,630	$6.36	$5.53 - $7.50
Q2 2019	679,817	$4,847	$4.54	$2.42 - $7.15
Q1 2019	1,465,380	$3,737	$2.97	$2.13 - $3.79
Q4 2018	1,826,280	$3,890	$3.39	$1.60 - $4.77
Q3 2018	1,838,989	$8,404	$4.87	$4.00 - $5.27
Q2 2018	1,657,889	$8,124	$4.75	$4.03 - $5.32
Q1 2018	1,202,956	$5,137	$4.73	$4.18 - $5.58
Q4 2017	1,090,898	$5,324	$4.66	$4.12 - $5.14
Q3 2017	1,095,517	$4,765	$4.37	$3.99 - $4.90
Q2 2017	1,093,997	$4,868	$4.22	$3.95 - $4.62
Q1 2017	1,483,872	$6,158	$4.26	$3.84 - $4.86
Q4 2016	1,655,326	$6,836	$4.87	$3.61 - $6.71
Q3 2016	721,737	$4,302	$5.04	$4.42 - $6.29