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 DRDBU 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/DRDBU"
Use Arkolith to show who owns DRDBU, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Clear Street Group Inc. | $681K | 65K | ▲+1.1% Added · +700 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.
No Form 4 insider transactions on file yet.
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 4 funds | $23.3B |
| APPLE INCAAPL | 4 funds | $15.6B |
| MICROSOFT CORPMSFT | 4 funds | $14.3B |
| ALPHABET INC-CL AGOOGL | 4 funds | $8.8B |
| AMAZON.COM INCAMZN | 4 funds | $8.3B |
| JPMORGAN CHASE & COJPM | 4 funds | $7.7B |
| META PLATFORMS INC-CLASS AMETA | 4 funds | $7.1B |
| ALPHABET INC-CL CGOOG | 4 funds | $6.3B |
| COSTCO WHOLESALE CORPCOST | 4 funds | $2.9B |
| CISCO SYSTEMS INCCSCO | 4 funds | $2.9B |
| JOHNSON & JOHNSONJNJ | 4 funds | $2.8B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 4 funds | $2.5B |
Ranked by how many of DRDBU'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 DRDBU. 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.