RUM RUM Group Inc.
RUM Group Inc. (RUM) Institutional Ownership
What the institutions did with RUM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| CANTOR FITZGERALD, L. P. | 19.8M | 27.8% |
| COOPER CREEK PARTNERS MANAGEMENT LLC | 9.0M | 12.7% |
| BlackRock, Inc. | 8.7M | 12.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.2M | 5.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.1M | 5.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 3.1M | 4.3% |
| STATE STREET CORP | 2.9M | 4.1% |
| GOLDMAN SACHS GROUP INC | 1.5M | 2.2% |
| LMR Partners LLP | 1.5M | 2.1% |
| ZAZOVE ASSOCIATES LLC | 1.2M | 1.7% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 966.3K | 1.4% |
| NORTHERN TRUST CORP | 952.9K | 1.3% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 928.1K | 1.3% |
| VANGUARD FIDUCIARY TRUST CO | 791.1K | 1.1% |
| BOOTHBAY FUND MANAGEMENT, LLC | 780.0K | 1.1% |
| JANE STREET GROUP, LLC | 775.0K | 1.1% |
| UBS Group AG | 698.5K | 1.0% |
| AMERIPRISE FINANCIAL INC | 631.2K | 0.9% |
| BANK OF AMERICA CORP /DE/ | 555.1K | 0.8% |
| Cambridge Investment Research Advisors, Inc. | 527.7K | 0.7% |
| ARISTEIA CAPITAL, L.L.C. | 504.4K | 0.7% |
| MORGAN STANLEY | 405.3K | 0.6% |
| Nuveen, LLC | 348.7K | 0.5% |
| Bank of New York Mellon Corp | 322.1K | 0.5% |
| NATIONAL BANK OF CANADA /FI/ | 266.2K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CANTOR FITZGERALD, L. P. | Increased | 9.3M | 19.8M | +10.4M |
| COOPER CREEK PARTNERS MANAGEMENT LLC | Increased | 5.2M | 9.0M | +3.8M |
| LMR Partners LLP | New | 0 | 1.5M | +1.5M |
| ZAZOVE ASSOCIATES LLC | New | 0 | 1.2M | +1.2M |
| UBS Group AG | Reduced | 1.6M | 698.5K | -903.4K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 36.0K | 928.1K | +892.1K |
| BlackRock, Inc. | Increased | 7.9M | 8.7M | +810.2K |
| BOOTHBAY FUND MANAGEMENT, LLC | New | 0 | 780.0K | +780.0K |
| NATIONAL BANK OF CANADA /FI/ | Reduced | 894.5K | 266.2K | -628.3K |
| MORGAN STANLEY | Reduced | 1.0M | 405.3K | -608.3K |
| GOLDMAN SACHS GROUP INC | Reduced | 2.1M | 1.5M | -524.7K |
| ARISTEIA CAPITAL, L.L.C. | New | 0 | 504.4K | +504.4K |
| STATE STREET CORP | Reduced | 3.3M | 2.9M | -442.6K |
| BANK OF AMERICA CORP /DE/ | Increased | 163.4K | 555.1K | +391.7K |
| Sculptor Capital LP | Reduced | 390.2K | 25.6K | -364.6K |
| MARSHALL WACE, LLP | Reduced | 417.2K | 62.0K | -355.2K |
| JANE STREET GROUP, LLC | Increased | 431.6K | 775.0K | +343.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 2.8M | 3.1M | +273.1K |
| Cambridge Investment Research Advisors, Inc. | Increased | 264.1K | 527.7K | +263.5K |
| CITADEL ADVISORS LLC | New | 0 | 210.1K | +210.1K |
| Walleye Trading LLC | New | 0 | 164.4K | +164.4K |
| Numerai GP LLC | Reduced | 182.6K | 21.7K | -160.9K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 4.0M | 4.2M | +155.0K |
| BARCLAYS PLC | Reduced | 169.4K | 24.6K | -144.8K |
| DARK FOREST CAPITAL MANAGEMENT LP | New | 0 | 141.9K | +141.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.