Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 20-F filed 2026-07-28, as of 2026-03-31)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common Class A | RMSG · NASDAQ | 4,755,277 | 463,172 | 9.7% | 9 | G7410G106 |
| Common Class B | not listed | 5,887,680 | — | — |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (13 of 13 · G7410G114)
change vs 2026-03-31| # | Filer | Shares / principal | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | Clear Street Group Inc. | 554,880 | — | $20K | +8,241 (+1.5%) |
| 2 | Polar Asset Management Partners Inc. | 363,837 | — | $14K | — |
| 3 | Yakira Capital Management, Inc. | 348,080 | — | $12K | — |
| 4 | ARISTEIA CAPITAL, L.L.C. | 205,694 | — | $8K | +37,700 (+22.4%) |
| 5 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 165,000 | — | $5K | — |
| 6 | WHITEBOX ADVISORS LLC | 74,400 | — | $3K | — |
| 7 | TORONTO DOMINION BANK | 62,892 | — | $2K | -11,788 (-15.8%) |
| 8 | WOLVERINE ASSET MANAGEMENT LLC | 50,956 | — | $2K | -35,003 (-40.7%) |
| 9 | Context Capital Management, LLC | 50,000 | — | $2K | -37,700 (-43.0%) |
| 10 | SkyView Investment Advisors, LLC | 35,000 | — | $1K | NEW |
| 11 | BOOTHBAY FUND MANAGEMENT, LLC | 28,006 | — | $14K | -460,494 (-94.3%) |
| 12 | Periscope Capital Inc. | 21,000 | — | $752 | — |
| 13 | StoneX Group Inc. | 10,015 | — | $547 | NEW |
Exited since 2026-03-31 (1 filers; largest 1 shown)
| HRT FINANCIAL LP | −12,490 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Alta Partners LLC | SCHEDULE 13G/A | 2026-07-10 | 2026-06-30 | 1,153,324 | 6.5% |
| Bloomington DH Holdings Limited | SCHEDULE 13D/A | 2026-06-01 | 2026-05-05 | 6,267,555 | 79.24% |
| Kwai Hoi MA | SCHEDULE 13D/A | 2026-06-01 | 2026-05-05 | 7,667,555 | 97.71% |
| PERISCOPE CAPITAL INC. | SCHEDULE 13G/A | 2025-05-12 | 2025-03-31 | 205,500 | 4.1% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.