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 MCGA 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/MCGA"
Use Arkolith to show who owns MCGA, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | $8.6M | 850K | —Held | Q1 2026 | |
| 2 | BOOTHBAY FUND MANAGEMENT, LLC | $6.4M | 638K | —Held | Q1 2026 | |
| 3 | Westchester Capital Management, LLC | $5.6M | 550K | ▲New +550K sh | Q1 2026 | |
| 4 | Shaolin Capital Management LLC | $4.0M | 400K | ▲+60% Added · +150K sh | Q1 2026 | |
| 5 | First Trust Capital Management L.P. | $3.2M | 312K | ▲+19% Added · +50K sh | Q1 2026 | |
| 6 | AQR Arbitrage LLC | $3.0M | 293K | ▼−3.6% Reduced · −11K sh | Q1 2026 | |
| 7 | Polar Asset Management Partners Inc. | $2.4M | 240K | —Held | Q1 2026 | |
| 8 | LMR Partners LLP | $2.1M | 207K | —Held | Q1 2026 | |
| 9 | TENOR CAPITAL MANAGEMENT Co., L.P. | $2.0M | 200K | —Held | Q1 2026 | |
| 10 | Magnetar Financial LLC | $2.0M | 195K | —Held | Q1 2026 | |
| 11 | Hudson Bay Capital Management LP | $1.5M | 150K | —Held | Q1 2026 | |
| 12 | WHITEBOX ADVISORS LLC | $1.0M | 100K | —Held | Q1 2026 | |
| 13 | MOORE CAPITAL MANAGEMENT, LP | $1.0M | 100K | —Held | Q1 2026 | |
| 14 | Context Capital Management, LLC | $1.0M | 100K | —Held | Q1 2026 | |
| 15 | PICTON MAHONEY ASSET MANAGEMENT | $859K | 85K | —Held | Q1 2026 | |
| 16 | CSS LLC/IL | $832K | 82K | —Held | Q1 2026 | |
| 17 | Jain Global LLC | $758K | 75K | —Held | Q1 2026 | |
| 18 | Clear Street Group Inc. | $671K | 296K | ▼−37% Reduced · −174K sh | Q1 2026 | |
| 19 | Schonfeld Strategic Advisors LLC | $151K | 15K | ▼−0.7% Reduced · −100 sh | Q1 2026 | |
| 20 | CITADEL ADVISORS LLC | $150K | 15K | ▲Added Added · +15K 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 11, 2026 | ANGELO MARK | Director, 10% Owner | Grant (A) | 1 | $250K |
| Class | 13F holders | Value held |
|---|---|---|
| MCGAthis pageSHS CL A | 33 funds | $82.8M |
| MCGAWWarrant | 24 funds | $5.3M |
| MCGAUUNIT 06/06/2030 | 5 funds | $3.0M |
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 |
|---|---|---|
| CANTOR EQUITY PARTNERS-CL ACEPF | 20 funds | $105.3M |
| CANTOR EQUITY PARTNERS III-ACAEP | 20 funds | $65.9M |
| CANTOR EQUITY PARTNERS-CL ACEPV | 19 funds | $62.1M |
| IDEA ACQUISITION CORPIACOU | 18 funds | $113.9M |
| MOZAYYX ACQUISITION CORPMZYX/U | 18 funds | $94.8M |
| ARMADA ACQUISITION -CLASS AXRPN | 18 funds | $86.6M |
| REPUBLIC DIGITAL ACQUIS-CL ARDAG | 18 funds | $86.1M |
| CAL REDWOOD ACQUISIT-CL ACRAQ | 18 funds | $78.0M |
| PROCAP ACQUISITION CORP - APCAP | 18 funds | $73.1M |
| TRAILBLAZER ACQUISITION-CL ABLZR | 18 funds | $68.7M |
| D. BORAL ARC ACQUISIT - CL ABCAR | 18 funds | $67.5M |
| FUTURECREST ACQUISITION-CL AFCRS | 18 funds | $50.2M |
Ranked by how many of MCGA'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 MCGA. 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.