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 CAPN 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/CAPN"
Use Arkolith to show who owns CAPN, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $5.0M | 450K | —Held | Q1 2026 | |
| 2 | Polar Asset Management Partners Inc. | $3.0M | 275K | —Held | Q1 2026 | |
| 3 | Shaolin Capital Management LLC | $2.5M | 224K | ▲New +224K sh | Q1 2026 | |
| 4 | AQR Arbitrage LLC | $2.0M | 184K | ▼−47% Reduced · −166K sh | Q1 2026 | |
| 5 | Clear Street Group Inc. | $1.6M | 142K | ▲+32% Added · +34K 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 |
|---|---|---|---|---|---|
| Oct 15, 2024 | Cao Yawei | Chief Executive Officer, Director, 10% Owner | Disposed to issuer (D) | 113K | $0 |
| Oct 15, 2024 | Zhang Dahe | Chief Financial Officer, 10% Owner | Disposed to issuer (D) | 113K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| APEX TREASURY CORP-CL AAPXT | 11 funds | $54.6M |
| PIONEER ACQUISITION I-CL APACH | 11 funds | $48.1M |
| ENHANCED GROUP INCENHA | 11 funds | $36.7M |
| DRUGS MADE IN AMERICA ACQUISDMII | 10 funds | $101.7M |
| DRUGS MADE IN AMERICA ACQUISDMAA | 10 funds | $86.6M |
| LAUNCH ONE ACQUISITION CORPLPAA | 10 funds | $82.9M |
| SOULPOWER ACQUISITION CO-ASOUL | 10 funds | $63.6M |
| SC II ACQUISITION CORP-CL ASCII | 10 funds | $63.1M |
| LAFAYETTE DIGITAL ACQUISITIOZKP | 10 funds | $58.3M |
| K&F GROWTH ACQUISITION COR-AKFII | 10 funds | $54.0M |
| COPLEY ACQUISITION CORP-ACOPL | 10 funds | $50.0M |
| OYSTER ENTERPRISES II ACQ-AOYSE | 10 funds | $49.1M |
Ranked by how many of CAPN'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 CAPN. 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.