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ISSC

Innovative Solutions & Support Inc

Company with tickers: ISSC

CIK
836690
CUSIP
45769N105
Shares Outstanding
17,892,747
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 120
Total Value: $191,266,986
Total Shares: 9,316,466
Showing 1–100 of 127 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 120 13F filers · Δ vs Dec 31, 2025
Top Holder
8.1%
Jun 2023 → Mar 2026 · range 7.5% – 22.4%
−0.1 pts
Top 5
26.0%
Jun 2023 → Mar 2026 · range 26.0% – 72.6%
−7.3 pts
Top 10
41.2%
Jun 2023 → Mar 2026 · range 41.2% – 87.9%
−10.1 pts
HHI
275
Jun 2023 → Mar 2026 · range 275 – 1,209
Broadly held −97

Quarterly Activity

vs Dec 31, 2025
New
46
Increased
35
Decreased
30
Sold Out
14
Unchanged
9
Holder count: +32
Institutional value: +9.9%
Shares held: +1.3%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega AMERICAN CENTURY COMPANIES INC +206,934 228,052
Large Qube Research & Technologies Ltd +131,162 212,137
Mega LPL Financial LLC +94,240 111,216
Mid OSAIC HOLDINGS, INC. +92,687 100,732
Mid Hennion & Walsh Asset Management, Inc. +78,701 143,300

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mega MORGAN STANLEY −631,589 6,216
Small WealthTrust Axiom LLC −180,038 206,332
Small Palisades Investment Partners, LLC −174,922 64,354
Mid PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. −76,556 518,618
Large Man Group plc −74,127 80,589

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega D. E. Shaw & Co., Inc. 435,900 $8,949,027
Large Driehaus Capital Management LLC 348,103 $7,146,554
Mid ALGERT GLOBAL LLC 230,834 $4,739,022
Large Trexquant Investment LP 141,322 $2,901,340
Large MACKENZIE FINANCIAL CORP 120,654 $2,477,026

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega VANGUARD GROUP INC 692,376 $13,113,601
Large STIFEL FINANCIAL CORP 291,945 $5,529,438
Mid Ancora Advisors LLC 161,800 $3,064,492
Large NEW YORK STATE COMMON RETIREMENT FUND 71,180 $1,348,149
Large OMERS ADMINISTRATION Corp 43,100 $816,314
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Large MARSHALL WACE, LLP $15,466,829 8.09% 753,377 View
Mid PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. $10,647,227 5.57% 518,618 View
Mega D. E. Shaw & Co., Inc. $8,949,027 4.68% 435,900 View
Mega DIMENSIONAL FUND ADVISORS LP $7,560,520 3.95% 368,267 View
Large Driehaus Capital Management LLC $7,146,554 3.74% 348,103 View
Large RENAISSANCE TECHNOLOGIES LLC $6,218,393 3.25% 302,893 View
Mega BlackRock, Inc. $5,903,973 3.09% 287,578 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $5,672,911 2.97% 276,323 View
Large PEAK6 LLC $5,561,577 2.91% 270,900 View
Mega MILLENNIUM MANAGEMENT LLC $5,105,646 2.67% 248,692 View
Mid ALGERT GLOBAL LLC $4,739,022 2.48% 230,834 View
Mega AMERICAN CENTURY COMPANIES INC $4,681,907 2.45% 228,052 View
Large Qube Research & Technologies Ltd $4,355,172 2.28% 212,137 View
Small WealthTrust Axiom LLC $4,235,995 2.21% 206,332 View
Large Connor, Clark & Lunn Investment Management Ltd. $3,507,612 1.83% 170,853 View
Small ISTHMUS PARTNERS, LLC $3,391,001 1.77% 165,173 View
Mega RAYMOND JAMES FINANCIAL INC $3,066,318 1.60% 149,358 View
Mega GEODE CAPITAL MANAGEMENT, LLC $2,998,528 1.57% 146,056 View
Mid Hennion & Walsh Asset Management, Inc. $2,941,949 1.54% 143,300 View
Large Trexquant Investment LP $2,901,340 1.52% 141,322 View
Mid GAMCO INVESTORS, INC. ET AL $2,597,045 1.36% 126,500 View
Mega JANE STREET GROUP, LLC $2,487,948 1.30% 121,186 View
Large MACKENZIE FINANCIAL CORP $2,477,026 1.30% 120,654 View
Large GABELLI FUNDS LLC $2,417,818 1.26% 117,770 View
Large LAZARD ASSET MANAGEMENT LLC $2,291,538 1.20% 111,619 View
Mega LPL Financial LLC $2,283,264 1.19% 111,216 View
Small Teton Advisors, LLC $2,278,830 1.19% 111,000 View
Mid Penserra Capital Management LLC $2,239,802 1.17% 109,099 View
Mega UBS Group AG $2,190,756 1.15% 106,710 View
Mega CITADEL ADVISORS LLC $2,179,853 1.14% 106,179 View
Mega GOLDMAN SACHS GROUP INC $2,084,389 1.09% 101,529 View
Mid OSAIC HOLDINGS, INC. $2,068,027 1.08% 100,732 View
Mid Y-Intercept (Hong Kong) Ltd $1,917,584 1.00% 93,404 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,890,915 0.99% 92,105 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,862,071 0.97% 90,700 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,860,018 0.97% 90,600 View
Mega JANE STREET GROUP, LLC $1,685,513 0.88% 82,100 View
Large Man Group plc $1,654,492 0.87% 80,589 View
Large Russell Investments Group, Ltd. $1,571,796 0.82% 76,561 View
Large CREDIT AGRICOLE S A $1,437,100 0.75% 70,000 View
Small Pekin Hardy Strauss, Inc. $1,436,073 0.75% 69,950 View
Small Palisades Investment Partners, LLC $1,321,187 0.69% 64,354 View
Large SEI INVESTMENTS CO $1,289,242 0.67% 62,798 View
Mega STATE STREET CORP $1,202,914 0.63% 58,593 View
Mega Bank of New York Mellon Corp $1,144,977 0.60% 55,771 View
Small Informed Momentum Co LLC $1,082,608 0.57% 52,733 View
Mega CITADEL ADVISORS LLC $1,069,613 0.56% 52,100 View
Small SIERRA SUMMIT ADVISORS LLC $999,236 0.52% 48,672 View
Large Squarepoint Ops LLC $990,921 0.52% 48,267 View
Large HRT FINANCIAL LP $933,458 0.49% 45,468 View
Large ACADIAN ASSET MANAGEMENT LLC $917,157 0.48% 44,674 View
Mega CITADEL ADVISORS LLC $888,949 0.46% 43,300 View
Mega AMERIPRISE FINANCIAL INC $872,730 0.46% 42,510 View
Mega BARCLAYS PLC $792,169 0.41% 38,586 View
Mid XTX Topco Ltd $764,106 0.40% 37,219 View
Mega JANE STREET GROUP, LLC $753,451 0.39% 36,700 View
Large Point72 Asset Management, L.P. $701,181 0.37% 34,154 View
Large Schonfeld Strategic Advisors LLC $655,379 0.34% 31,923 View
Mid SIMPLEX TRADING, LLC $651,273 0.34% 31,723 View
Large HighTower Advisors, LLC $615,222 0.32% 29,967 View
Small Precision Wealth Strategies, LLC $595,411 0.31% 29,002 View
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $585,105 0.31% 28,500 View
Mid Mesirow Financial Investment Management, Inc. $558,908 0.29% 27,224 View
Mid NORTHERN TRUST CORP $540,205 0.28% 26,313 View
Small FOX RUN MANAGEMENT, L.L.C. $537,270 0.28% 26,170 View
Large COMMONWEALTH EQUITY SERVICES, LLC $535,566 0.28% 26,087 View
Large Hudson Bay Capital Management LP $534,765 0.28% 26,048 View
Mega TWO SIGMA INVESTMENTS, LP $530,864 0.28% 25,858 View
Mid GROUP ONE TRADING LLC $504,853 0.26% 24,591 View
Large PANAGORA ASSET MANAGEMENT INC $433,162 0.23% 21,099 View
Mid NewEdge Advisors, LLC $429,077 0.22% 20,900 View
Small JAMES INVESTMENT RESEARCH, INC. $418,812 0.22% 20,400 View
Mid Virtu Financial LLC $417,313 0.22% 20,327 View
Large Point72 Asset Management, L.P. $416,759 0.22% 20,300 View
Mid IMC-Chicago, LLC $410,168 0.21% 19,979 View
Mid Brevan Howard Capital Management LP $402,162 0.21% 19,589 View
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $398,631 0.21% 19,417 View
Small Wharton Business Group, LLC $398,179 0.21% 19,395 View
Mid GREAT VALLEY ADVISOR GROUP, INC. $392,061 0.20% 19,097 View
Large DAVENPORT & Co LLC $390,070 0.20% 19,000 View
Mega CANADA PENSION PLAN INVESTMENT BOARD $383,911 0.20% 18,700 View
Mid 683 Capital Management, LLC $369,540 0.19% 18,000 View
Large ALPS ADVISORS INC $366,871 0.19% 17,870 View
Small Caitong International Asset Management Co., Ltd $355,271 0.19% 17,305 View
Mid RITHOLTZ WEALTH MANAGEMENT $326,817 0.17% 15,919 View
Large Empowered Funds, LLC $320,575 0.17% 15,615 View
Mega WELLS FARGO & COMPANY/MN $302,960 0.16% 14,757 View
Mega BANK OF AMERICA CORP /DE/ $279,557 0.15% 13,617 View
Small Dynamic Technology Lab Private Ltd $264,385 0.14% 12,878 View
Mid J.W. COLE ADVISORS, INC. $251,389 0.13% 12,245 View
Mid SIG BROKERAGE, LP $246,832 0.13% 12,023 View
Small INTEGRITY ALLIANCE, LLC. $241,843 0.13% 11,780 View
Mid WINTON GROUP Ltd $235,027 0.12% 11,448 View
Small GWN SECURITIES INC. $231,804 0.12% 11,291 View
Mid PRELUDE CAPITAL MANAGEMENT, LLC $227,821 0.12% 11,097 View
Small AXQ CAPITAL, LP $218,870 0.11% 10,661 View
Small State of Wyoming $218,233 0.11% 10,630 View
Mid BAILARD, INC. $217,618 0.11% 10,600 View
Micro Clear Point Advisors Inc. $205,300 0.11% 10,000 View
Small Integrated Quantitative Investments LLC $205,258 0.11% 9,998 View
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