10 tracked 13F filers disclose a position in RUMBW as of the latest SEC 13F filings, a combined $7.5M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | LMR Partners LLP | $1.6M | 1.5M | ▼−0.3% Reduced · −5K sh | Q1 2026 | |
| 2 | ZAZOVE ASSOCIATES LLC | $2.3M | 1.2M | ▼−46% Reduced · −1.1M sh | Q2 2026 | |
| 3 | CANTOR FITZGERALD, L. P. | $589K | 550K | —Held | Q1 2026 | |
| 4 | ARISTEIA CAPITAL, L.L.C. | $520K | 504K | —Held | Q1 2026 | |
| 5 | BOOTHBAY FUND MANAGEMENT, LLC | $2.2M | 425K | —Held | Q1 2026 | |
| 6 | D. E. Shaw & Co., Inc. | $114K | 107K | —Held | Q1 2026 | |
| 7 | Private Advisor Group, LLC | $129K | 73K | ▲+49% Added · +24K sh | Q2 2026 | |
| 8 | Hudson Bay Capital Management LP | $63K | 59K | —Held | Q1 2026 | |
| 9 | Creative Planning | $23K | 22K | ▲+87% Added · +10K sh | Q1 2026 | |
| 10 | Stratos Wealth Partners, LTD. | $18K | 17K | ▼−26% Reduced · −6K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 0 funds opened a new position in RUMBW, while 2 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| AMPRIUS TECHNOLOGIES INCAMPX/WS | 6 funds | $53.0M |
| OPPFI INC -CW26OPFI/WS | 6 funds | $4.7M |
| ARCHER AVIATION INC -CW26ACHR/WS | 6 funds | $4.2M |
| ALIBABA GROUP HOLDINGBABA 0.5 06/01/31 | 5 funds | $1.2B |
| STRATEGY INCMSTR 0.625 09/15/28 | 5 funds | $386.9M |
| ECHOSTAR CORP-ASATS | 5 funds | $167.4M |
| FLUOR CORPFLR | 5 funds | $156.4M |
| LIBERTY BROADBAND-CLBRDK | 5 funds | $155.1M |
| COHERENT CORPCOHR | 5 funds | $94.5M |
| AES CORPAES | 5 funds | $86.9M |
| VISTRA CORPVST | 5 funds | $66.0M |
| ROCKET COS INC-CLASS ARKT | 5 funds | $63.0M |
Ranked by how many of RUMBW's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
| Class | 13F holders | Value held |
|---|---|---|
| RUMcs | 174 funds | $234.0M |
| RUMBWthis page*W EXP 09/16/202 | 10 funds | $7.5M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
No filings captured for this ticker in the live stream yet.
Connected entities for RUMBW
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/RUMBW/capital-change-brief"
Use Arkolith's capital_change_brief for RUMBW. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for RUMBW. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.