11 institutions reported holding $16.6M of INVESTMENT MANAGERS SER TR (WULX) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($4.9M), SIMPLEX TRADING, LLC ($2.8M), VESTOR CAPITAL, LLC ($2.4M), IMC-Chicago, LLC ($2.2M), CITADEL ADVISORS LLC ($1.7M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $4.9M | 136,723 | Added |
| 2 | SIMPLEX TRADING, LLC | $2.8M | 68,110 | Added |
| 3 | VESTOR CAPITAL, LLC | $2.4M | 44,093 | New |
| 4 | IMC-Chicago, LLC | $2.2M | 39,500 | Trimmed |
| 5 | CITADEL ADVISORS LLC | $1.7M | 36,213 | Added |
| 6 | HRT FINANCIAL LP | $1.4M | 50,600 | New |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $743,706 | 16,108 | New |
| 8 | Belvedere Trading LLC | $302,136 | 6,544 | New |
| 9 | Optiver Holding B.V. | $127,245 | 2,756 | Trimmed |
| 10 | Tower Research Capital LLC (TRC) | $462 | 10 | New |
| 11 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30