27 institutions reported holding $11.1M of Churchill Capital Corp XI (CCXIU) in SEC 13F filings for 2026-06-30. Largest institutional holders: MILLENNIUM MANAGEMENT LLC ($6.9M), OMERS ADMINISTRATION Corp ($1.8M), HRT FINANCIAL LP ($1.8M), Walleye Capital LLC ($603,000), LMR Partners LLP ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | MILLENNIUM MANAGEMENT LLC | $6.9M | 381,839 | Trimmed |
| 2 | OMERS ADMINISTRATION Corp | $1.8M | 100,000 | Hold |
| 3 | HRT FINANCIAL LP | $1.8M | 100,042 | Added |
| 4 | Walleye Capital LLC | $603,000 | 33,500 | Trimmed |
| 5 | LMR Partners LLP | $0 | 0 | Exited |
| 6 | GABELLI FUNDS LLC | $0 | 0 | Exited |
| 7 | SCOGGIN MANAGEMENT LP | $0 | 0 | Exited |
| 8 | MMCAP International Inc. SPC | $0 | 0 | Exited |
| 9 | Calamos Advisors LLC | $0 | 0 | Exited |
| 10 | Empyrean Capital Partners, LP | $0 | 0 | Exited |
| 11 | Alyeska Investment Group, L.P. | $0 | 0 | Exited |
| 12 | Verition Fund Management LLC | $0 | 0 | Exited |
| 13 | Westchester Capital Management, LLC | $0 | 0 | Exited |
| 14 | BlueCrest Capital Management Ltd | $0 | 0 | Exited |
| 15 | SYQUANT CAPITAL SAS | $0 | 0 | Exited |
| 16 | Clear Street Group Inc. | $0 | 0 | Exited |
| 17 | Quarry LP | $0 | 0 | Exited |
| 18 | RLH Capital LLC | $0 | 0 | Exited |
| 19 | Jain Global LLC | $0 | 0 | Exited |
| 20 | T3 Companies, LLC | $0 | 0 | Exited |
| 21 | Lineage Point Capital LP | $0 | 0 | Exited |
| 22 | GABELLI & Co INVESTMENT ADVISERS, INC. | $0 | 0 | Exited |
| 23 | TORONTO DOMINION BANK | $0 | 0 | Exited |
| 24 | LEVIN CAPITAL STRATEGIES, L.P. | $0 | 0 | Exited |
| 25 | HGC Investment Management Inc. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30