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 2026-04-29, as of 2025-12-31)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | ABTS · NASDAQ | 2,369,995 | 51,409 | 2.2% | 7 | G6S34K113 |
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 (7 of 7 · G6S34K113)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | JANE STREET GROUP, LLC | 37,590 | 1.59% | $44K | NEW |
| 2 | CITADEL ADVISORS LLC | 10,980 | 0.46% | $13K | NEW |
| 3 | UBS Group AG | 2,588 | 0.11% | $3K | +2,340 (+943.5%) |
| 4 | MCF Advisors LLC | 184 | 0.01% | $214 | — |
| 5 | GROUP ONE TRADING LLC | 33 | 0.00% | $38 | — |
| 6 | SBI Securities Co., Ltd. | 33 | 0.00% | $38 | NEW |
| 7 | Caitong International Asset Management Co., Ltd | 1 | 0.00% | $1 | -112 (-99.1%) |
Exited since 2026-03-31 (2 filers; largest 2 shown)
| Empery Asset Management, LP | −172,761 |
| FNY Investment Advisers, LLC | −3,470 |
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 |
|---|---|---|---|---|---|
| ARC Group International Ltd. | SCHEDULE 13D | 2026-09-09 | 2026-08-05 | 805,353 | 22.7% |
| Conglin Deng | SCHEDULE 13D/A | 2026-08-10 | 2026-08-06 | 0 | 0% |
| Empery Asset Management, LP | SCHEDULE 13G/A | 2026-07-29 | 2026-06-30 | 0 | 0% |
| Ryan M. Lane | SCHEDULE 13G/A | 2026-07-29 | 2026-06-30 | 0 | 0% |
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.