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 HBDC 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/HBDC"
Use Arkolith to show who owns HBDC, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | &PARTNERS | $9.0M | 370K | ▼−0.1% Reduced · −265 sh | Q1 2026 | |
| 2 | CITADEL ADVISORS LLC | $1.8M | 75K | ▲New +75K 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 |
|---|---|---|
| SS SPDR S&P 500 ETF TRUST-USSPY | 10 funds | $39.2B |
| NVIDIA CORPNVDA | 10 funds | $35.1B |
| APPLE INCAAPL | 10 funds | $32.6B |
| MICROSOFT CORPMSFT | 10 funds | $28.5B |
| AMAZON.COM INCAMZN | 10 funds | $20.5B |
| BROADCOM INCAVGO | 10 funds | $19.7B |
| INVESCO QQQ TRUST SERIES 1QQQ | 10 funds | $18.9B |
| ISHARES CORE S&P 500 ETFIVV | 10 funds | $18.5B |
| ALPHABET INC-CL AGOOGL | 10 funds | $17.6B |
| JPMORGAN CHASE & COJPM | 10 funds | $14.0B |
| ISHARES CORE U.S. AGGREGATEAGG | 10 funds | $12.8B |
| META PLATFORMS INC-CLASS AMETA | 10 funds | $12.2B |
Ranked by how many of HBDC'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 HBDC. 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.