Innovative Solutions and Support
Ownership
Ownership Structure
Who owns Innovative Solutions and Support (ISSC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 91.5% of the shares are freely tradable; institutional investors hold 56.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Marshall Wace Asset Management Ltd | 4.21 | 753,377 | -0.1 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.50 | 625,775 | +0.0 | 03/31/2026 |
| Morgan Stanley - Brokerage Accounts | 3.37 | 603,247 | -10.2 | 03/31/2026 |
| Punch & Associates Inv Mgmt Inc | 3.18 | 569,963 | +9.9 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 2.30 | 411,427 | +11.7 | 06/30/2026 |
| Driehaus Capital Management LLC | 1.94 | 348,103 | +0.0 | 03/31/2026 |
| Renaissance Technologies Corp | 1.69 | 302,893 | +12.6 | 03/31/2026 |
| BlackRock Inc | 1.61 | 287,578 | -16.3 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.63 | 470,996 | +0.0 | 07/31/2026 |
| iShares Russell 2000 ETF | 2.03 | 362,862 | -1.7 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: August 24, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.