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 CMIIU 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/CMIIU"
Use Arkolith to show who owns CMIIU, 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 | $9.7M | 971K | ▲New +971K sh | Q1 2026 | |
| 2 | LMR Partners LLP | $5.0M | 500K | ▲New +500K sh | Q1 2026 | |
| 3 | Alberta Investment Management Corp | $5.0M | 500K | ▲New +500K sh | Q1 2026 | |
| 4 | WHITEBOX ADVISORS LLC | $4.0M | 400K | ▲New +400K sh | Q1 2026 | |
| 5 | Schonfeld Strategic Advisors LLC | $2.5M | 250K | ▲New +250K sh | Q1 2026 | |
| 6 | Westchester Capital Management, LLC | $1.5M | 150K | ▲New +150K sh | Q1 2026 | |
| 7 | PICTON MAHONEY ASSET MANAGEMENT | $999K | 100K | ▲New +100K sh | Q1 2026 | |
| 8 | Calamos Advisors LLC | $746K | 75K | ▲New +75K sh | Q1 2026 | |
| 9 | Ghisallo Capital Management LLC | $497K | 50K | ▲New +50K sh | Q1 2026 | |
| 10 | Clear Street Group Inc. | $81K | 40K | ▲New +40K 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 12, 2026 | COLUMBUS CIRCLE 2 SPONSOR Corp LLC | 10% Owner | Buy (P) | 265K | $2.6M |
| Class | 13F holders | Value held |
|---|---|---|
| CMIIUSD CL A ORD SHS | 27 funds | $117.8M |
| CMIIWWarrant | 21 funds | $1.6M |
| CMIIUthis pageUnit | 16 funds | $39.4M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
| Company | Co-held by | Combined value |
|---|---|---|
| IDEA ACQUISITION CORPIACOU | 10 funds | $57.7M |
| ABONY ACQUISITION CORP IAACOU | 10 funds | $48.3M |
| PROCAP ACQUISITION CORP - APCAP | 10 funds | $34.9M |
| WARNER BROS DISCOVERY INCWBD | 9 funds | $533.9M |
| NEW PROVIDENCE ACQUISITION-ANPAC | 9 funds | $84.1M |
| ANDRETTI ACQUISITION CORP -APOLE | 9 funds | $83.8M |
| TITAN ACQUISITION CORP-CL ATACH | 9 funds | $81.6M |
| ALDEL FINANCIAL II INCALDF | 9 funds | $70.2M |
| ARCHIMEDES TECH SPAC PARTNERATII | 9 funds | $58.5M |
| MOUNTAIN LAKE ACQUISITION-AMLAC | 9 funds | $52.2M |
| HCM IV ACQUISITION CORPHACQU | 9 funds | $50.4M |
| CARTESIAN GROWTH CORP I-CL ACGCT | 9 funds | $48.4M |
Ranked by how many of CMIIU'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 CMIIU. 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.