INNOVATIVE SOLUTIONS & SUPPO

Ticker: ISSC CUSIP: 45769N105 Class: COM

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q4 2025

Shares 696,748 Value ($000) $13,196 Avg Close $11.39 Range $8.13 - $20.39

Q3 2025

Shares 556,188 Value ($000) $6,947 Avg Close $13.96 Range $10.83 - $20.00

Q2 2025

Shares 537,322 Value ($000) $7,458 Avg Close $9.09 Range $5.30 - $14.37

Q1 2025

Shares 531,133 Value ($000) $3,341 Avg Close $8.61 Range $6.17 - $12.17

Q4 2024

Shares 513,189 Value ($000) $4,383 Avg Close $7.50 Range $6.15 - $8.97

Q3 2024

Shares 540,009 Value ($000) $3,521 Avg Close $6.38 Range $5.25 - $7.59

Q2 2024

Shares 540,009 Value ($000) $3,240 Avg Close $6.34 Range $4.91 - $7.60

Q1 2024

Shares 577,160 Value ($000) $4,225 Avg Close $8.05 Range $6.98 - $8.69

Q4 2023

Shares 629,497 Value ($000) $5,370 Avg Close $7.61 Range $7.05 - $9.00

Q3 2023

Shares 620,337 Value ($000) $4,715 Avg Close $7.80 Range $6.94 - $8.42

Q2 2023

Shares 620,337 Value ($000) $4,448 Avg Close $6.88 Range $6.11 - $7.66

Q1 2023

Shares 623,169 Value ($000) $4,574 Avg Close $8.07 Range $7.22 - $8.99

Q4 2022

Shares 611,043 Value ($000) $5,023 Avg Close $8.81 Range $8.04 - $9.60

Q3 2022

Shares 609,400 Value ($000) $5,259 Avg Close $7.25 Range $5.77 - $9.23

Q2 2022

Shares 458,936 Value ($000) $3,304 Avg Close $7.97 Range $5.77 - $9.90

Q1 2022

Shares 452,714 Value ($000) $3,649 Avg Close $7.29 Range $6.10 - $8.50

Q4 2021

Shares 434,386 Value ($000) $2,849 Avg Close $6.75 Range $6.04 - $7.25

Q3 2021

Shares 435,224 Value ($000) $3,055 Avg Close $6.96 Range $6.23 - $7.94

Q2 2021

Shares 435,224 Value ($000) $2,729 Avg Close $6.07 Range $5.34 - $6.75

Q1 2021

Shares 435,327 Value ($000) $2,752 Avg Close $6.38 Range $5.87 - $7.38

Q4 2020

Shares 433,145 Value ($000) $2,824 Avg Close $6.63 Range $5.89 - $8.24

Q3 2020

Shares 433,145 Value ($000) $2,964 Avg Close $6.27 Range $4.82 - $8.09

Q2 2020

Shares 435,288 Value ($000) $2,177 Avg Close $4.39 Range $3.01 - $5.76

Q1 2020

Shares 435,232 Value ($000) $1,387 Avg Close $5.10 Range $1.20 - $6.25

Q4 2019

Shares 286,545 Value ($000) $1,673 Avg Close $4.83 Range $4.12 - $7.11

Q3 2019

Shares 270,310 Value ($000) $1,270 Avg Close $5.01 Range $4.05 - $5.94

Q2 2019

Shares 216,185 Value ($000) $1,103 Avg Close $4.01 Range $3.01 - $5.25

Q1 2019

Shares 142,823 Value ($000) $430 Avg Close $2.64 Range $2.05 - $3.22

Q4 2018

Shares 142,823 Value ($000) $315 Avg Close $2.27 Range $2.02 - $2.65

Q3 2018

Shares 354,763 Value ($000) $901 Avg Close $2.76 Range $2.45 - $3.05

Q2 2018

Shares 354,763 Value ($000) $1,032 Avg Close $3.18 Range $2.80 - $3.79

Q1 2018

Shares 354,016 Value ($000) $1,250 Avg Close $3.27 Range $2.90 - $3.80

Q4 2017

Shares 353,786 Value ($000) $1,041 Avg Close $3.15 Range $2.60 - $3.79

Q3 2017

Shares 365,445 Value ($000) $1,330 Avg Close $3.76 Range $3.13 - $4.52

Q2 2017

Shares 370,076 Value ($000) $1,629 Avg Close $3.63 Range $2.85 - $4.54

Q1 2017

Shares 384,208 Value ($000) $1,160 Avg Close $3.41 Range $2.93 - $4.36

Q4 2016

Shares 398,611 Value ($000) $1,327 Avg Close $3.25 Range $2.61 - $3.99

Q3 2016

Shares 413,838 Value ($000) $1,316 Avg Close $2.94 Range $2.58 - $3.35

Q2 2016

Shares 413,838 Value ($000) $1,167 Avg Close $2.77 Range $2.55 - $3.06

Q1 2016

Shares 413,838 Value ($000) $1,088 Avg Close $2.62 Range $2.35 - $2.92

Q4 2015

Shares 413,838 Value ($000) $1,142 Avg Close $2.57 Range $2.27 - $2.95

Q3 2015

Shares 413,838 Value ($000) $1,121 Avg Close $2.94 Range $2.52 - $3.40

Q2 2015

Shares 413,838 Value ($000) $1,365 Avg Close $3.54 Range $2.92 - $4.05

Q1 2015

Shares 415,383 Value ($000) $1,579 Avg Close $3.75 Range $2.95 - $4.45

Q4 2014

Shares 408,483 Value ($000) $1,299 Avg Close $2.97 Range $2.38 - $5.31

Q3 2014

Shares 405,583 Value ($000) $2,115 Avg Close $5.99 Range $5.12 - $7.91

Q2 2014

Shares 409,607 Value ($000) $3,048 Avg Close $6.95 Range $6.13 - $7.89

Q1 2014

Shares 430,259 Value ($000) $3,240 Avg Close $7.51 Range $6.27 - $8.82

Q4 2013

Shares 427,565 Value ($000) $3,117 Avg Close $7.40 Range $6.57 - $8.07

Q3 2013

Shares 424,418 Value ($000) $3,379 Avg Close $7.76 Range $6.38 - $8.41

Q2 2013

Shares 426,130 Value ($000) $2,727 Avg Close $7.55 Range $4.56 - $9.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	696,748	$13,196	$11.39	$8.13 - $20.39
Q3 2025	556,188	$6,947	$13.96	$10.83 - $20.00
Q2 2025	537,322	$7,458	$9.09	$5.30 - $14.37
Q1 2025	531,133	$3,341	$8.61	$6.17 - $12.17
Q4 2024	513,189	$4,383	$7.50	$6.15 - $8.97
Q3 2024	540,009	$3,521	$6.38	$5.25 - $7.59
Q2 2024	540,009	$3,240	$6.34	$4.91 - $7.60
Q1 2024	577,160	$4,225	$8.05	$6.98 - $8.69
Q4 2023	629,497	$5,370	$7.61	$7.05 - $9.00
Q3 2023	620,337	$4,715	$7.80	$6.94 - $8.42
Q2 2023	620,337	$4,448	$6.88	$6.11 - $7.66
Q1 2023	623,169	$4,574	$8.07	$7.22 - $8.99
Q4 2022	611,043	$5,023	$8.81	$8.04 - $9.60
Q3 2022	609,400	$5,259	$7.25	$5.77 - $9.23
Q2 2022	458,936	$3,304	$7.97	$5.77 - $9.90
Q1 2022	452,714	$3,649	$7.29	$6.10 - $8.50
Q4 2021	434,386	$2,849	$6.75	$6.04 - $7.25
Q3 2021	435,224	$3,055	$6.96	$6.23 - $7.94
Q2 2021	435,224	$2,729	$6.07	$5.34 - $6.75
Q1 2021	435,327	$2,752	$6.38	$5.87 - $7.38
Q4 2020	433,145	$2,824	$6.63	$5.89 - $8.24
Q3 2020	433,145	$2,964	$6.27	$4.82 - $8.09
Q2 2020	435,288	$2,177	$4.39	$3.01 - $5.76
Q1 2020	435,232	$1,387	$5.10	$1.20 - $6.25
Q4 2019	286,545	$1,673	$4.83	$4.12 - $7.11
Q3 2019	270,310	$1,270	$5.01	$4.05 - $5.94
Q2 2019	216,185	$1,103	$4.01	$3.01 - $5.25
Q1 2019	142,823	$430	$2.64	$2.05 - $3.22
Q4 2018	142,823	$315	$2.27	$2.02 - $2.65
Q3 2018	354,763	$901	$2.76	$2.45 - $3.05
Q2 2018	354,763	$1,032	$3.18	$2.80 - $3.79
Q1 2018	354,016	$1,250	$3.27	$2.90 - $3.80
Q4 2017	353,786	$1,041	$3.15	$2.60 - $3.79
Q3 2017	365,445	$1,330	$3.76	$3.13 - $4.52
Q2 2017	370,076	$1,629	$3.63	$2.85 - $4.54
Q1 2017	384,208	$1,160	$3.41	$2.93 - $4.36
Q4 2016	398,611	$1,327	$3.25	$2.61 - $3.99
Q3 2016	413,838	$1,316	$2.94	$2.58 - $3.35
Q2 2016	413,838	$1,167	$2.77	$2.55 - $3.06
Q1 2016	413,838	$1,088	$2.62	$2.35 - $2.92
Q4 2015	413,838	$1,142	$2.57	$2.27 - $2.95
Q3 2015	413,838	$1,121	$2.94	$2.52 - $3.40
Q2 2015	413,838	$1,365	$3.54	$2.92 - $4.05
Q1 2015	415,383	$1,579	$3.75	$2.95 - $4.45
Q4 2014	408,483	$1,299	$2.97	$2.38 - $5.31
Q3 2014	405,583	$2,115	$5.99	$5.12 - $7.91
Q2 2014	409,607	$3,048	$6.95	$6.13 - $7.89
Q1 2014	430,259	$3,240	$7.51	$6.27 - $8.82
Q4 2013	427,565	$3,117	$7.40	$6.57 - $8.07
Q3 2013	424,418	$3,379	$7.76	$6.38 - $8.41
Q2 2013	426,130	$2,727	$7.55	$4.56 - $9.25