The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query AACOU owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/AACOU"
Use Arkolith to show who owns AACOU, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Magnetar Financial LLC | $19.4M | 1.9M | ▲New +1.9M sh | Q1 2026 | |
| 2 | AQR Arbitrage LLC | $10.1M | 1.0M | ▲New +1.0M sh | Q1 2026 | |
| 3 | Polar Asset Management Partners Inc. | $9.9M | 1.0M | ▲New +1.0M sh | Q1 2026 | |
| 4 | LMR Partners LLP | $8.9M | 900K | ▲New +900K sh | Q1 2026 | |
| 5 | TENOR CAPITAL MANAGEMENT Co., L.P. | $7.1M | 713K | ▲New +713K sh | Q1 2026 | |
| 6 | Alberta Investment Management Corp | $7.0M | 700K | ▲New +700K sh | Q1 2026 | |
| 7 | Verition Fund Management LLC | $6.0M | 600K | ▲New +600K sh | Q1 2026 | |
| 8 | ARISTEIA CAPITAL, L.L.C. | $4.4M | 444K | ▲New +444K sh | Q1 2026 | |
| 9 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $4.2M | 425K | ▲New +425K sh | Q1 2026 | |
| 10 | PICTON MAHONEY ASSET MANAGEMENT | $4.0M | 400K | ▲New +400K sh | Q1 2026 | |
| 11 | MOORE CAPITAL MANAGEMENT, LP | $4.0M | 400K | ▲New +400K sh | Q1 2026 | |
| 12 | WHITEBOX ADVISORS LLC | $3.0M | 300K | ▲New +300K sh | Q1 2026 | |
| 13 | Calamos Advisors LLC | $2.0M | 198K | ▲New +198K sh | Q1 2026 | |
| 14 | Ghisallo Capital Management LLC | $1.5M | 150K | ▲New +150K sh | Q1 2026 | |
| 15 | Schonfeld Strategic Advisors LLC | $1.4M | 137K | ▲New +137K sh | Q1 2026 | |
| 16 | Westchester Capital Management, LLC | $1.2M | 125K | ▲New +125K sh | Q1 2026 | |
| 17 | Shaolin Capital Management LLC | $994K | 100K | ▲New +100K sh | Q1 2026 | |
| 18 | Centiva Capital, LP | $961K | 97K | ▲New +97K sh | Q1 2026 | |
| 19 | Hudson Bay Capital Management LP | $126K | 13K | ▲New +13K sh | Q1 2026 | |
| 20 | Clear Street Group Inc. | $4K | 449 | ▲New +449 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Feb 20, 2026 | Abony Lorne | Chief Executive Officer, Director, 10% Owner | Buy (P) | 465K | — |
| Feb 20, 2026 | Abony Sponsor I LLC | 10% Owner | Buy (P) | 465K | — |
| Company | Co-held by | Combined value |
|---|---|---|
| NEW PROVIDENCE ACQUISITION-ANPAC | 19 funds | $152.4M |
| PROCAP ACQUISITION CORP - APCAP | 19 funds | $76.5M |
| SPARTACUS ACQU CORP IITMTSU | 19 funds | $71.3M |
| LAUNCHPAD CADENZA ACQUISITIOLPCVU | 19 funds | $23.5M |
| IDEA ACQUISITION CORPIACOU | 18 funds | $135.3M |
| ANDRETTI ACQUISITION CORP -APOLE | 18 funds | $131.7M |
| ARCHIMEDES TECH SPAC PARTNERATII | 18 funds | $110.9M |
| HCM IV ACQUISITION CORPHACQU | 18 funds | $109.1M |
| BLUE WATER ACQUISITION C-ABLUW | 18 funds | $93.1M |
| CAL REDWOOD ACQUISIT-CL ACRAQ | 18 funds | $90.9M |
| LIGHTWAVE ACQUISITION CORP-ALWAC | 18 funds | $90.9M |
| WEN ACQUISITION CORP-AWENN | 18 funds | $87.2M |
Ranked by how many of AACOU's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for AACOU. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.