ASPEN AEROGELS INC

Ticker: ASPN CUSIP: 04523Y105 Class: Common Stock

Baird Financial Group, Inc.'s Holding History (CIK: 0001648711)

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

Q4 2025

Shares 11,344 Value ($000) $32 Avg Close $5.16 Range $2.79 - $9.35

Q3 2025

Shares 364,423 Value ($000) $2,536 Avg Close $7.05 Range $5.75 - $9.78

Q2 2025

Shares 399,740 Value ($000) $2,366 Avg Close $5.75 Range $4.16 - $6.92

Q1 2025

Shares 444,280 Value ($000) $2,839 Avg Close $9.64 Range $6.23 - $14.30

Q4 2024

Shares 401,131 Value ($000) $4,765 Avg Close $17.05 Range $11.59 - $27.25

Q3 2024

Shares 344,092 Value ($000) $9,528 Avg Close $25.02 Range $16.78 - $33.15

Q2 2024

Shares 401,359 Value ($000) $9,572 Avg Close $23.47 Range $14.52 - $31.74

Q1 2024

Shares 435,516 Value ($000) $7,665 Avg Close $14.74 Range $10.75 - $19.10

Q4 2023

Shares 434,938 Value ($000) $6,863 Avg Close $10.33 Range $6.62 - $17.32

Q3 2023

Shares 478,171 Value ($000) $4,112 Avg Close $7.10 Range $5.33 - $8.90

Q2 2023

Shares 496,539 Value ($000) $3,918 Avg Close $6.96 Range $5.41 - $8.70

Q1 2023

Shares 457,014 Value ($000) $3,405 Avg Close $9.94 Range $6.37 - $13.50

Q4 2022

Shares 478,669 Value ($000) $6 Avg Close $11.43 Range $8.90 - $14.44

Q3 2022

Shares 448,923 Value ($000) $4,139 Avg Close $12.11 Range $9.20 - $15.11

Q2 2022

Shares 392,305 Value ($000) $3,876 Avg Close $20.18 Range $7.93 - $35.54

Q1 2022

Shares 405,119 Value ($000) $13,969 Avg Close $32.45 Range $25.00 - $52.00

Q4 2021

Shares 371,763 Value ($000) $18,510 Avg Close $52.70 Range $43.28 - $65.99

Q3 2021

Shares 371,292 Value ($000) $17,083 Avg Close $39.64 Range $30.43 - $47.29

Q2 2021

Shares 359,005 Value ($000) $10,741 Avg Close $20.41 Range $16.33 - $31.00

Q1 2021

Shares 337,806 Value ($000) $6,871 Avg Close $21.09 Range $15.21 - $26.98

Q4 2020

Shares 256,764 Value ($000) $4,285 Avg Close $13.15 Range $10.17 - $18.22

Q3 2020

Shares 255,487 Value ($000) $2,798 Avg Close $7.91 Range $5.78 - $11.28

Q2 2020

Shares 253,358 Value ($000) $1,667 Avg Close $6.42 Range $5.19 - $8.65

Q1 2020

Shares 122,297 Value ($000) $751 Avg Close $8.12 Range $4.09 - $10.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,344	$32	$5.16	$2.79 - $9.35
Q3 2025	364,423	$2,536	$7.05	$5.75 - $9.78
Q2 2025	399,740	$2,366	$5.75	$4.16 - $6.92
Q1 2025	444,280	$2,839	$9.64	$6.23 - $14.30
Q4 2024	401,131	$4,765	$17.05	$11.59 - $27.25
Q3 2024	344,092	$9,528	$25.02	$16.78 - $33.15
Q2 2024	401,359	$9,572	$23.47	$14.52 - $31.74
Q1 2024	435,516	$7,665	$14.74	$10.75 - $19.10
Q4 2023	434,938	$6,863	$10.33	$6.62 - $17.32
Q3 2023	478,171	$4,112	$7.10	$5.33 - $8.90
Q2 2023	496,539	$3,918	$6.96	$5.41 - $8.70
Q1 2023	457,014	$3,405	$9.94	$6.37 - $13.50
Q4 2022	478,669	$6	$11.43	$8.90 - $14.44
Q3 2022	448,923	$4,139	$12.11	$9.20 - $15.11
Q2 2022	392,305	$3,876	$20.18	$7.93 - $35.54
Q1 2022	405,119	$13,969	$32.45	$25.00 - $52.00
Q4 2021	371,763	$18,510	$52.70	$43.28 - $65.99
Q3 2021	371,292	$17,083	$39.64	$30.43 - $47.29
Q2 2021	359,005	$10,741	$20.41	$16.33 - $31.00
Q1 2021	337,806	$6,871	$21.09	$15.21 - $26.98
Q4 2020	256,764	$4,285	$13.15	$10.17 - $18.22
Q3 2020	255,487	$2,798	$7.91	$5.78 - $11.28
Q2 2020	253,358	$1,667	$6.42	$5.19 - $8.65
Q1 2020	122,297	$751	$8.12	$4.09 - $10.71