IREZ — Investment Managers Ser Tr I Institutional Holders · Q2 2026
Who owns Investment Managers Ser Tr I (IREZ)? 14 institutions reported holding $4.88M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Optiver Holding B.V. ($1.9M), Susquehanna International Group, LLP ($1.0M), Gts Securities LLC ($682,805).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Optiver Holding B.V. | $1.9M | 231,182 | Added |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.0M | 124,292 | Added |
| 3 | GTS SECURITIES LLC | $682,805 | 84,193 | New |
| 4 | StoneX Group Inc. | $380,718 | 29,927 | Added |
| 5 | CITADEL ADVISORS LLC | $327,644 | 40,400 | Added |
| 6 | FLOW TRADERS U.S. LLC | $314,000 | 38,676 | New |
| 7 | Jump Financial, LLC | $280,614 | 34,601 | Trimmed |
| 8 | GROUP ONE TRADING LLC | $8,670 | 1,069 | New |
| 9 | RENAISSANCE TECHNOLOGIES LLC | $0 | 0 | Exited |
| 10 | IMC-Chicago, LLC | $0 | 0 | Exited |
| 11 | SIMPLEX TRADING, LLC | $0 | 0 | Exited |
| 12 | JANE STREET GROUP, LLC | $0 | 0 | Exited |
| 13 | Belvedere Trading LLC | $0 | 0 | Exited |
| 14 | MIRAE ASSET SECURITIES (USA) INC. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30