Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ISSC held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | MARSHALL WACE, LLP | 753K | $15.5M | -0.1% | 4.210% | 0.02% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 626K | $12.8M | — | 3.497% | 0.00% |
| 3 | MORGAN STANLEY | 603K | $12.4M | -10.2% | 3.372% | 0.00% |
| 4 | PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 519K | $10.6M | -12.9% | 2.898% | 0.61% |
| 5 | DIMENSIONAL FUND ADVISORS LP | 368K | $7.6M | -2.5% | 2.058% | 0.00% |
| 6 | DRIEHAUS CAPITAL MANAGEMENT LLC | 348K | $7.1M | — | 1.946% | 0.05% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | 303K | $6.2M | +12.6% | 1.693% | 0.01% |
| 8 | BlackRock, Inc. | 288K | $5.9M | -16.3% | 1.607% | 0.00% |
| 9 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 276K | $5.7M | +22.8% | 1.544% | 0.00% |
| 10 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 273K | $5.6M | -13.7% | 1.528% | 0.00% |
| 11 | MILLENNIUM MANAGEMENT LLC | 249K | $5.1M | -11.4% | 1.390% | 0.00% |
| 12 | AMERICAN CENTURY COMPANIES INC | 228K | $4.7M | +979.9% | 1.274% | 0.00% |
| 13 | Qube Research & Technologies Ltd | 212K | $4.4M | +162.0% | 1.186% | 0.01% |
| 14 | WealthTrust Axiom LLC | 206K | $4.2M | -46.6% | 1.153% | 1.04% |
| 15 | CITADEL ADVISORS LLC | 202K | $4.1M | +17.9% | 1.127% | 0.00% |
| 16 | Connor, Clark & Lunn Investment Management Ltd. | 171K | $3.5M | +3.5% | 0.955% | 0.01% |
| 17 | ISTHMUS PARTNERS, LLC | 165K | $3.4M | -3.4% | 0.923% | 0.36% |
| 18 | RAYMOND JAMES FINANCIAL INC | 149K | $3.1M | -8.7% | 0.835% | 0.00% |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | 146K | $3.0M | +5.1% | 0.816% | 0.00% |
| 20 | Trexquant Investment LP | 141K | $2.9M | — | 0.790% | 0.03% |
| 21 | GAMCO INVESTORS, INC. ET AL | 127K | $2.6M | 0.0% | 0.707% | 0.03% |
| 22 | MACKENZIE FINANCIAL CORP | 121K | $2.5M | — | 0.674% | 0.00% |
| 23 | GABELLI FUNDS LLC | 118K | $2.4M | +7.2% | 0.658% | 0.02% |
| 24 | LAZARD ASSET MANAGEMENT LLC | 112K | $2.3M | +8.8% | 0.624% | 0.00% |
| 25 | LPL Financial LLC | 111K | $2.3M | +555.1% | 0.622% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ISSC — a direct measure of their conviction.
Filings activity in ISSC during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 120 | +41% | 56.51% | +6.60 pp | $187M | +13% |
| Q4 2025 | 85 | 5.6% | 49.91% | +22.45 pp | $165M | +82% |
| Q3 2025 | 90 | +27% | 27.46% | +2.41 pp | $91M | +9.6% |
| Q2 2025 | 71 | +22% | 25.05% | +14.33 pp | $83M | +134% |
| Q1 2025 | 58 | +9.4% | 10.72% | 2.07 pp | $35M | 16% |
| Q4 2024 | 53 | +23% | 12.79% | +5.02 pp | $42M | +65% |
| Q3 2024 | 43 | +13% | 7.77% | +1.17 pp | $26M | +18% |
| Q2 2024 | 38 | — | 6.60% | — | $22M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying ISSC stock.
Based on Q1 2026 13F filings, institutional ownership of Innovative Aerosystems, Inc. stands at 56.5%, held across 120 reporting institutions.
MARSHALL WACE, LLP is the largest reported institutional holder of ISSC, with approximately 753,377 shares worth $0.02B as of Q1 2026.
Yes — 4 widely-followed marquee investors appear among the top 25 institutional holders of ISSC, including RENAISSANCE TECHNOLOGIES LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP, MILLENNIUM MANAGEMENT LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for ISSC is 83 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
49 institutions opened new positions in ISSC during Q1 2026, while 14 fully exited. 47 added to existing positions and 24 trimmed.
ISSC institutional ownership rose by 6.60 percentage points quarter-over-quarter, with a net change of +35 holders.
The top 10 institutions account for 47.9% of all reported 13F value in ISSC, and the top 25 account for 74.9%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Innovative Aerosystems, Inc. (ISSC) Institutional Ownership