INNOVATIVE SOLUTIONS & SUPPO

Ticker: ISSC CUSIP: 45769N105 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q4 2025

Shares 377,833 Value ($000) $7,158 Avg Close $11.39 Range $8.13 - $20.39

Q3 2025

Shares 372,308 Value ($000) $4,649 Avg Close $13.96 Range $10.83 - $20.00

Q2 2025

Shares 373,386 Value ($000) $5,183 Avg Close $9.09 Range $5.30 - $14.37

Q1 2025

Shares 416,980 Value ($000) $2,623 Avg Close $8.61 Range $6.17 - $12.17

Q4 2024

Shares 432,030 Value ($000) $3,690 Avg Close $7.50 Range $6.15 - $8.97

Q3 2024

Shares 421,969 Value ($000) $2,751 Avg Close $6.38 Range $5.25 - $7.59

Q2 2024

Shares 418,119 Value ($000) $2,509 Avg Close $6.34 Range $4.91 - $7.60

Q1 2024

Shares 409,359 Value ($000) $2,997 Avg Close $8.05 Range $6.98 - $8.69

Q4 2023

Shares 406,622 Value ($000) $3,468 Avg Close $7.61 Range $7.05 - $9.00

Q3 2023

Shares 408,795 Value ($000) $3,107 Avg Close $7.80 Range $6.94 - $8.42

Q2 2023

Shares 412,066 Value ($000) $2,955 Avg Close $6.88 Range $6.11 - $7.66

Q1 2023

Shares 413,211 Value ($000) $3,033 Avg Close $8.07 Range $7.22 - $8.99

Q4 2022

Shares 416,372 Value ($000) $3 Avg Close $8.81 Range $8.04 - $9.60

Q3 2022

Shares 405,314 Value ($000) $3,497 Avg Close $7.25 Range $5.77 - $9.23

Q2 2022

Shares 381,319 Value ($000) $2,745 Avg Close $7.97 Range $5.77 - $9.90

Q1 2022

Shares 349,993 Value ($000) $2,821 Avg Close $7.29 Range $6.10 - $8.50

Q4 2021

Shares 343,998 Value ($000) $2,257 Avg Close $6.75 Range $6.04 - $7.25

Q3 2021

Shares 352,401 Value ($000) $2,520 Avg Close $6.96 Range $6.23 - $7.94

Q2 2021

Shares 359,273 Value ($000) $2,253 Avg Close $6.07 Range $5.34 - $6.75

Q1 2021

Shares 361,675 Value ($000) $2,286 Avg Close $6.38 Range $5.87 - $7.38

Q4 2020

Shares 371,555 Value ($000) $2,423 Avg Close $6.63 Range $5.89 - $8.24

Q3 2020

Shares 372,024 Value ($000) $2,545 Avg Close $6.27 Range $4.82 - $8.09

Q2 2020

Shares 396,098 Value ($000) $1,980 Avg Close $4.39 Range $3.01 - $5.76

Q1 2020

Shares 403,392 Value ($000) $1,287 Avg Close $5.10 Range $1.20 - $6.25

Q4 2019

Shares 398,394 Value ($000) $2,327 Avg Close $4.83 Range $4.12 - $7.11

Q3 2019

Shares 398,394 Value ($000) $1,872 Avg Close $5.01 Range $4.05 - $5.94

Q2 2019

Shares 398,394 Value ($000) $2,032 Avg Close $4.01 Range $3.01 - $5.25

Q1 2019

Shares 396,282 Value ($000) $1,193 Avg Close $2.64 Range $2.05 - $3.22

Q4 2018

Shares 395,638 Value ($000) $872 Avg Close $2.27 Range $2.02 - $2.65

Q3 2018

Shares 395,638 Value ($000) $1,005 Avg Close $2.76 Range $2.45 - $3.05

Q2 2018

Shares 395,638 Value ($000) $1,151 Avg Close $3.18 Range $2.80 - $3.79

Q1 2018

Shares 391,337 Value ($000) $1,381 Avg Close $3.27 Range $2.90 - $3.80

Q4 2017

Shares 388,030 Value ($000) $1,141 Avg Close $3.15 Range $2.60 - $3.79

Q3 2017

Shares 388,030 Value ($000) $1,412 Avg Close $3.76 Range $3.13 - $4.52

Q2 2017

Shares 378,730 Value ($000) $1,666 Avg Close $3.63 Range $2.85 - $4.54

Q1 2017

Shares 378,401 Value ($000) $1,143 Avg Close $3.41 Range $2.93 - $4.36

Q4 2016

Shares 378,401 Value ($000) $1,260 Avg Close $3.25 Range $2.61 - $3.99

Q3 2016

Shares 380,388 Value ($000) $1,210 Avg Close $2.94 Range $2.58 - $3.35

Q2 2016

Shares 380,788 Value ($000) $1,074 Avg Close $2.77 Range $2.55 - $3.06

Q1 2016

Shares 385,086 Value ($000) $1,013 Avg Close $2.62 Range $2.35 - $2.92

Q4 2015

Shares 385,659 Value ($000) $1,064 Avg Close $2.57 Range $2.27 - $2.95

Q3 2015

Shares 385,659 Value ($000) $1,045 Avg Close $2.94 Range $2.52 - $3.40

Q2 2015

Shares 385,859 Value ($000) $1,273 Avg Close $3.54 Range $2.92 - $4.05

Q1 2015

Shares 386,392 Value ($000) $1,468 Avg Close $3.75 Range $2.95 - $4.45

Q4 2014

Shares 389,200 Value ($000) $1,238 Avg Close $2.97 Range $2.38 - $5.31

Q3 2014

Shares 409,134 Value ($000) $2,134 Avg Close $5.99 Range $5.12 - $7.91

Q2 2014

Shares 411,499 Value ($000) $3,062 Avg Close $6.95 Range $6.13 - $7.89

Q1 2014

Shares 454,305 Value ($000) $3,421 Avg Close $7.51 Range $6.27 - $8.82

Q4 2013

Shares 454,305 Value ($000) $3,312 Avg Close $7.40 Range $6.57 - $8.07

Q3 2013

Shares 454,305 Value ($000) $3,616 Avg Close $7.76 Range $6.38 - $8.41

Q2 2013

Shares 455,139 Value ($000) $2,913 Avg Close $7.55 Range $4.56 - $9.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	377,833	$7,158	$11.39	$8.13 - $20.39
Q3 2025	372,308	$4,649	$13.96	$10.83 - $20.00
Q2 2025	373,386	$5,183	$9.09	$5.30 - $14.37
Q1 2025	416,980	$2,623	$8.61	$6.17 - $12.17
Q4 2024	432,030	$3,690	$7.50	$6.15 - $8.97
Q3 2024	421,969	$2,751	$6.38	$5.25 - $7.59
Q2 2024	418,119	$2,509	$6.34	$4.91 - $7.60
Q1 2024	409,359	$2,997	$8.05	$6.98 - $8.69
Q4 2023	406,622	$3,468	$7.61	$7.05 - $9.00
Q3 2023	408,795	$3,107	$7.80	$6.94 - $8.42
Q2 2023	412,066	$2,955	$6.88	$6.11 - $7.66
Q1 2023	413,211	$3,033	$8.07	$7.22 - $8.99
Q4 2022	416,372	$3	$8.81	$8.04 - $9.60
Q3 2022	405,314	$3,497	$7.25	$5.77 - $9.23
Q2 2022	381,319	$2,745	$7.97	$5.77 - $9.90
Q1 2022	349,993	$2,821	$7.29	$6.10 - $8.50
Q4 2021	343,998	$2,257	$6.75	$6.04 - $7.25
Q3 2021	352,401	$2,520	$6.96	$6.23 - $7.94
Q2 2021	359,273	$2,253	$6.07	$5.34 - $6.75
Q1 2021	361,675	$2,286	$6.38	$5.87 - $7.38
Q4 2020	371,555	$2,423	$6.63	$5.89 - $8.24
Q3 2020	372,024	$2,545	$6.27	$4.82 - $8.09
Q2 2020	396,098	$1,980	$4.39	$3.01 - $5.76
Q1 2020	403,392	$1,287	$5.10	$1.20 - $6.25
Q4 2019	398,394	$2,327	$4.83	$4.12 - $7.11
Q3 2019	398,394	$1,872	$5.01	$4.05 - $5.94
Q2 2019	398,394	$2,032	$4.01	$3.01 - $5.25
Q1 2019	396,282	$1,193	$2.64	$2.05 - $3.22
Q4 2018	395,638	$872	$2.27	$2.02 - $2.65
Q3 2018	395,638	$1,005	$2.76	$2.45 - $3.05
Q2 2018	395,638	$1,151	$3.18	$2.80 - $3.79
Q1 2018	391,337	$1,381	$3.27	$2.90 - $3.80
Q4 2017	388,030	$1,141	$3.15	$2.60 - $3.79
Q3 2017	388,030	$1,412	$3.76	$3.13 - $4.52
Q2 2017	378,730	$1,666	$3.63	$2.85 - $4.54
Q1 2017	378,401	$1,143	$3.41	$2.93 - $4.36
Q4 2016	378,401	$1,260	$3.25	$2.61 - $3.99
Q3 2016	380,388	$1,210	$2.94	$2.58 - $3.35
Q2 2016	380,788	$1,074	$2.77	$2.55 - $3.06
Q1 2016	385,086	$1,013	$2.62	$2.35 - $2.92
Q4 2015	385,659	$1,064	$2.57	$2.27 - $2.95
Q3 2015	385,659	$1,045	$2.94	$2.52 - $3.40
Q2 2015	385,859	$1,273	$3.54	$2.92 - $4.05
Q1 2015	386,392	$1,468	$3.75	$2.95 - $4.45
Q4 2014	389,200	$1,238	$2.97	$2.38 - $5.31
Q3 2014	409,134	$2,134	$5.99	$5.12 - $7.91
Q2 2014	411,499	$3,062	$6.95	$6.13 - $7.89
Q1 2014	454,305	$3,421	$7.51	$6.27 - $8.82
Q4 2013	454,305	$3,312	$7.40	$6.57 - $8.07
Q3 2013	454,305	$3,616	$7.76	$6.38 - $8.41
Q2 2013	455,139	$2,913	$7.55	$4.56 - $9.25