18 tracked 13F filers disclose a position in ALPXU as of the latest SEC 13F filings, a combined $53.9M 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 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $9.5M | 950K | ▲New +950K sh | Q2 2026 | |
| 2 | Harraden Circle Investments, LLC | $6.5M | 650K | ▲New +650K sh | Q2 2026 | |
| 3 | HEIGHTS CAPITAL MANAGEMENT, INC | $5.5M | 550K | ▲New +550K sh | Q2 2026 | |
| 4 | RiverPark Advisors, LLC | $4.8M | 475K | ▲New +475K sh | Q2 2026 | |
| 5 | Crossingbridge Advisors, LLC | $4.8M | 475K | ▲New +475K sh | Q2 2026 | |
| 6 | Magnetar Financial LLC | $4.0M | 400K | ▲New +400K sh | Q2 2026 | |
| 7 | WHITEBOX ADVISORS LLC | $4.0M | 400K | ▲New +400K sh | Q2 2026 | |
| 8 | Yakira Capital Management, Inc. | $3.0M | 300K | ▲New +300K sh | Q2 2026 | |
| 9 | Shaolin Capital Management LLC | $2.9M | 286K | ▲New +286K sh | Q2 2026 | |
| 10 | Calamos Advisors LLC | $2.0M | 200K | ▲New +200K sh | Q2 2026 | |
| 11 | Clear Street Group Inc. | $2.0M | 200K | ▲New +200K sh | Q2 2026 | |
| 12 | Verition Fund Management LLC | $1.0M | 100K | ▲New +100K sh | Q2 2026 | |
| 13 | PERISCOPE CAPITAL INC. | $1.0M | 100K | ▲New +100K sh | Q2 2026 | |
| 14 | Aristides Capital LLC | $1.0M | 100K | ▲New +100K sh | Q2 2026 | |
| 15 | Bulldog Investors, LLP | $748K | 75K | ▲New +75K sh | Q2 2026 | |
| 16 | Schonfeld Strategic Advisors LLC | $401K | 40K | ▲New +40K sh | Q2 2026 | |
| 17 | Warberg Asset Management LLC | $401K | 40K | ▲New +40K sh | Q2 2026 | |
| 18 | StoneX Group Inc. | $385K | 38K | ▲New +38K sh | Q2 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, 17 funds opened a new position in ALPXU, while 0 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 |
|---|---|---|
| CRANE HARBOR ACQUISITIO-CL ACRAN | 11 funds | $42.9M |
| JACKSON ACQUISITION CO-CL AJACS | 11 funds | $39.9M |
| D. BORAL ACQUISITION I-CL ADBCA | 11 funds | $37.3M |
| SIDDHI ACQUISITION CORP-ASDHI | 10 funds | $57.1M |
| BERTO ACQUISITION CORPTACO | 10 funds | $53.6M |
| KOCHAV DEFENSE ACQUISITION-AKCHV | 10 funds | $51.9M |
| SIZZLE ACQUISITION CORP-CL ASZZL | 10 funds | $47.6M |
Ranked by how many of ALPXU'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.
No filings captured for this ticker in the live stream yet.
Connected entities for ALPXU
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/ALPXU/capital-change-brief"
Use Arkolith's capital_change_brief for ALPXU. 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 ALPXU. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.