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 RIBB 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/RIBB"
Use Arkolith to show who owns RIBB, 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 | $4.2M | 400K | —Held | Q1 2026 | |
| 2 | Westchester Capital Management, LLC | $3.9M | 376K | ▲+32% Added · +91K sh | Q1 2026 | |
| 3 | Hudson Bay Capital Management LP | $2.6M | 250K | —Held | Q1 2026 | |
| 4 | Karpus Management, Inc. | $2.3M | 218K | —Held | Q1 2026 | |
| 5 | AQR Arbitrage LLC | $1.9M | 185K | ▼−0.9% Reduced · −2K sh | Q1 2026 | |
| 6 | Shaolin Capital Management LLC | $1.3M | 120K | ▲New +120K sh | Q1 2026 | |
| 7 | Clear Street Group Inc. | $666K | 63K | ▲+63% Added · +24K sh | Q1 2026 | |
| 8 | Centiva Capital, LP | $420K | 40K | —Held | Q1 2026 | |
| 9 | Dakota Wealth Management | $308K | 29K | —Held | 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.
No Form 4 insider transactions on file yet.
| Company | Co-held by | Combined value |
|---|---|---|
| PIONEER ACQUISITION I-CL APACH | 12 funds | $52.3M |
| DRUGS MADE IN AMERICA ACQUISDMII | 11 funds | $89.8M |
| K&F GROWTH ACQUISITION COR-AKFII | 11 funds | $75.7M |
| APEX TREASURY CORP-CL AAPXT | 11 funds | $67.8M |
| SC II ACQUISITION CORP-CL ASCII | 11 funds | $65.3M |
| COPLEY ACQUISITION CORP-ACOPL | 11 funds | $61.9M |
| OYSTER ENTERPRISES II ACQ-AOYSE | 11 funds | $59.2M |
| VENDOME ACQUISITION CORP-AVNME | 11 funds | $55.4M |
| THAYER VENTURES ACQUIS CL ATVAI | 11 funds | $50.3M |
| LIGHTWAVE ACQUISITION CORP-ALWAC | 11 funds | $48.8M |
| OXLEY BRIDGE ACQUISITIO-CL AOBA | 11 funds | $48.0M |
| SOLARIUS CAPITAL ACQUIS-CL ASOCA | 11 funds | $42.9M |
Ranked by how many of RIBB's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
No filings captured for this ticker in the live stream yet.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for RIBB. 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.