17 institutions reported holding $29.0M of INVESTMENT MANAGERS SER TR I (APPX) in SEC 13F filings for 2026-06-30. Largest institutional holders: CITADEL ADVISORS LLC ($9.5M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($5.5M), JANE STREET GROUP, LLC ($4.1M), Optiver Holding B.V. ($2.5M), IMC-Chicago, LLC ($2.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $9.5M | 235,039 | Added |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5.5M | 135,074 | Trimmed |
| 3 | JANE STREET GROUP, LLC | $4.1M | 101,103 | Added |
| 4 | Optiver Holding B.V. | $2.5M | 61,965 | New |
| 5 | IMC-Chicago, LLC | $2.0M | 49,154 | Added |
| 6 | FLOW TRADERS U.S. LLC | $1.2M | 30,535 | New |
| 7 | GOLDMAN SACHS GROUP INC | $1.2M | 29,345 | New |
| 8 | Belvedere Trading LLC | $814,258 | 23,412 | Added |
| 9 | Jump Financial, LLC | $767,293 | 18,983 | Added |
| 10 | StoneX Group Inc. | $651,465 | 11,147 | Added |
| 11 | XTX Topco Ltd | $265,681 | 6,573 | New |
| 12 | Z3 Capital Partners, LLC | $251,412 | 6,220 | New |
| 13 | SIMPLEX TRADING, LLC | $139,529 | 3,452 | Added |
| 14 | Tower Research Capital LLC (TRC) | $99,716 | 2,467 | Added |
| 15 | HOLLENCREST CAPITAL MANAGEMENT | $40,420 | 1,000 | New |
| 16 | OSAIC HOLDINGS, INC. | $21,140 | 523 | Hold |
| 17 | Genesis Financial Group, LLC | $0 | 0 | Exited |
来源：SEC 13F 申报文件 · 截至 2026-06-30