9 institutions reported holding $12.9M of INVESTMENT MANAGERS SER TR I (IREX) in SEC 13F filings for 2026-06-30. Largest institutional holders: CITADEL ADVISORS LLC ($6.0M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($4.2M), JANE STREET GROUP, LLC ($2.0M), RENAISSANCE TECHNOLOGIES LLC ($388,772), Cerity Partners LLC ($222,490). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $6.0M | 257,405 | Added |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $4.2M | 178,247 | Added |
| 3 | JANE STREET GROUP, LLC | $2.0M | 87,124 | Added |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $388,772 | 16,600 | New |
| 5 | Cerity Partners LLC | $222,490 | 9,500 | New |
| 6 | Tower Research Capital LLC (TRC) | $11,007 | 470 | Added |
| 7 | UBS Group AG | $0 | 0 | Exited |
| 8 | Belvedere Trading LLC | $0 | 0 | Exited |
| 9 | Scientech Research LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30