20 tracked 13F filers disclose a position in CMIIU as of the latest SEC 13F filings, a combined $43.5M 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 | 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 | MILLENNIUM MANAGEMENT LLC | $3.5M | 350K | ▲New +350K sh | Q1 2026 | |
| 6 | TORONTO DOMINION BANK | $2.7M | 269K | ▲New +269K sh | Q1 2026 | |
| 7 | Schonfeld Strategic Advisors LLC | $2.5M | 250K | ▲New +250K sh | Q1 2026 | |
| 8 | HGC Investment Management Inc. | $2.0M | 200K | ▲New +200K sh | Q1 2026 | |
| 9 | Lineage Point Capital LP | $2.0M | 200K | ▲New +200K sh | Q1 2026 | |
| 10 | Wealthspring Capital LLC | $1.9M | 181K | ▼−1.3% Reduced · −2K sh | Q2 2026 | |
| 11 | Westchester Capital Management, LLC | $1.5M | 150K | ▲New +150K sh | Q1 2026 | |
| 12 | PICTON MAHONEY ASSET MANAGEMENT | $999K | 100K | ▲New +100K sh | Q1 2026 | |
| 13 | Calamos Advisors LLC | $809K | 75K | —Held | Q2 2026 | |
| 14 | Cable Car Capital, LP | $749K | 75K | ▲New +75K sh | Q1 2026 | |
| 15 | Ghisallo Capital Management LLC | $497K | 50K | ▲New +50K sh | Q1 2026 | |
| 16 | Clear Street Group Inc. | Withheld | 40K | ▲New +40K sh | Q1 2026 | |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $298K | 30K | ▲New +30K sh | Q1 2026 | |
| 18 | Quarry LP | $249K | 25K | ▲New +25K sh | Q1 2026 | |
| 19 | HEIGHTS CAPITAL MANAGEMENT, INC | $249K | 25K | ▲New +25K sh | Q1 2026 | |
| 20 | Sculptor Capital LP | $20 | 2 | ▲New +2 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.
Last quarter, 15 funds opened a new position in CMIIU, while 1 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 |
|---|---|---|
| IDEA ACQUISITION CORPIACOU | 14 funds | $89.1M |
| MOZAYYX ACQUISITION CORPMZYX/U | 14 funds | $50.9M |
| TITAN ACQUISITION CORP-CL ATACH | 13 funds | $107.7M |
| NEW PROVIDENCE ACQUISITION-ANPAC | 13 funds | $102.4M |
| GORES HOLDINGS X INC-CL AGTEN | 13 funds | $88.1M |
| REPUBLIC DIGITAL ACQUIS-CL ARDAG | 13 funds | $61.5M |
| ABONY ACQUISITION CORP IAACOU | 13 funds | $60.2M |
| CANTOR EQUITY PARTNERS-CL ACEPF | 13 funds | $57.6M |
| CANTOR EQUITY PARTNERS-CL ACEPV | 13 funds | $43.8M |
| PENUMBRA INCPEN | 12 funds | $825.2M |
| DRUGS MADE IN AMERICA ACQUISDMII | 12 funds | $103.3M |
| SIZZLE ACQUISITION CORP-CL ASZZL | 12 funds | $81.2M |
Ranked by how many of CMIIU's institutional holders also hold each name, a cross-fund conviction signal.
| 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 | 30 funds | $129.5M |
| CMIIWWarrant | 26 funds | $2.0M |
| CMIIUthis pageUnit | 20 funds | $43.6M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for CMIIU
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/CMIIU/capital-change-brief"
Use Arkolith's capital_change_brief for CMIIU. 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 CMIIU. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.