19 institutions reported holding $17.8M of Rumble Inc. (RUMBW) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($4.6M), NATIONAL BANK OF CANADA /FI/ ($4.6M), BOOTHBAY FUND MANAGEMENT, LLC ($2.2M), IMC-Chicago, LLC ($1.7M), LMR Partners LLP ($1.6M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $4.6M | 899,500 | Trimmed |
| 2 | NATIONAL BANK OF CANADA /FI/ | $4.6M | 8,932 | Added |
| 3 | BOOTHBAY FUND MANAGEMENT, LLC | $2.2M | 424,600 | Hold |
| 4 | IMC-Chicago, LLC | $1.7M | 324,400 | Trimmed |
| 5 | LMR Partners LLP | $1.6M | 1.5M | Trimmed |
| 6 | SIMPLEX TRADING, LLC | $1.4M | 270,700 | Trimmed |
| 7 | CANTOR FITZGERALD, L. P. | $588,500 | 550,000 | Hold |
| 8 | ARISTEIA CAPITAL, L.L.C. | $519,573 | 504,440 | Hold |
| 9 | HRT FINANCIAL LP | $424,000 | 83,400 | Added |
| 10 | D. E. Shaw & Co., Inc. | $114,032 | 106,572 | Hold |
| 11 | Hudson Bay Capital Management LP | $62,695 | 58,593 | Hold |
| 12 | Private Advisor Group, LLC | $52,120 | 48,710 | Trimmed |
| 13 | MILLENNIUM MANAGEMENT LLC | $48,669 | 45,485 | Added |
| 14 | Creative Planning | $23,005 | 21,500 | Added |
| 15 | Stratos Wealth Partners, LTD. | $18,185 | 16,995 | Trimmed |
| 16 | OSAIC HOLDINGS, INC. | $7,875 | 45 | Hold |
| 17 | LITTLEJOHN & CO LLC | $5,350 | 5,000 | Hold |
| 18 | WOLVERINE ASSET MANAGEMENT LLC | $1,727 | 1,614 | New |
| 19 | UBS Group AG | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31