Innovative Solutions and Support (ISSC)
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%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Marshall Wace Asset Management Ltd | 4.21 | 753,377 | -0.1 | 03/31/2026 |
| Vanguard Group Inc | 3.89 | 696,748 | +25.3 | 12/31/2025 |
| 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 | 2.90 | 518,618 | -12.9 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 2.06 | 368,267 | -2.5 | 03/31/2026 |
| Driehaus Capital Management LLC | 1.95 | 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 Total Stock Mkt Idx Inv | 2.63 | 470,996 | +0.0 | 04/30/2026 |
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: July 31, 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.