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 HAFNIO 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/HAFNIO"
Use Arkolith to show who owns HAFNIO, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | HARBOUR INVESTMENTS, INC. | $8K | 1K | ▲New +1K sh | Q1 2026 | |
| 2 | EverSource Wealth Advisors, LLC | $1K | 137 | —Held | Q1 2026 | |
| 3 | Parallel Advisors, LLC | $782 | 102 | ▲+386% Added · +81 sh | Q1 2026 | |
| 4 | Farther Finance Advisors, LLC | $435 | 57 | ▲New +57 sh | Q1 2026 | |
| 5 | Root Financial Partners, LLC | $403 | 53 | —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 |
|---|---|---|
| MICROSOFT CORPMSFT | 32 funds | $375.5B |
| APPLE INCAAPL | 32 funds | $297.1B |
| AMAZON.COM INCAMZN | 32 funds | $199.2B |
| META PLATFORMS INC-CLASS AMETA | 32 funds | $126.0B |
| ALPHABET INC-CL AGOOGL | 32 funds | $124.2B |
| UNITEDHEALTH GROUP INCUNH | 32 funds | $68.0B |
| VISA INC-CLASS A SHARESV | 32 funds | $61.4B |
| EXXON MOBIL CORPXOM | 32 funds | $52.7B |
| MASTERCARD INC - AMA | 32 funds | $50.0B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 32 funds | $45.9B |
| PROCTER & GAMBLE CO/THEPG | 32 funds | $44.3B |
| ABBVIE INCABBV | 32 funds | $41.0B |
Ranked by how many of HAFNIO'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 HAFNIO. 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.