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 NTHI 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/NTHI"
Use Arkolith to show who owns NTHI, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $1.5M | 181K | ▲+28% Added · +40K sh | Q4 2025 | |
| 2 | BlackRock, Inc. | $1.1M | 156K | ▼−6.1% Reduced · −10K sh | Q1 2026 | |
| 3 | Hudson Bay Capital Management LP | $962K | 147K | ▲New +147K sh | Q1 2026 | |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | $890K | 127K | ▲+5.6% Added · +7K sh | Q1 2026 | |
| 5 | VANGUARD FIDUCIARY TRUST CO | $393K | 56K | ▲New +56K sh | Q1 2026 | |
| 6 | 683 Capital Management, LLC | $351K | 50K | ▼−6.5% Reduced · −3K sh | Q1 2026 | |
| 7 | STATE STREET CORP | $303K | 43K | —Held | Q1 2026 | |
| 8 | Ancora Advisors LLC | $15K | 2K | ▲+163% Added · +1K 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 |
|---|---|---|---|---|---|
| Nov 24, 2025 | Heshmatpour Amir F | President, Director, 10% Owner | Buy (P) | 6K | $39K |
| Nov 21, 2025 | Heshmatpour Amir F | President, Director, 10% Owner | Buy (P) | 20K | $120K |
| Nov 21, 2025 | Heshmatpour Amir F | President, Director, 10% Owner | Buy (P) | 4K | $26K |
| Nov 20, 2025 | Neman-Ebrahim Yousha | Chief Clinical Officer | Buy (P) | 1K | $7K |
| Nov 6, 2025 | Heshmatpour Amir F | President, Director, 10% Owner | Grant (A) | 1.2M | — |
| Jun 5, 2025 | Neman-Ebrahim Yousha | Chief Clinical Officer | Grant (A) | 133K | — |
| Jun 5, 2025 | Neman-Ebrahim Yousha | Chief Clinical Officer | Grant (A) | 67K | — |
| May 23, 2025 | Heshmatpour Amir F | President, Director | Buy (P) | 2K | $15K |
| May 22, 2025 | GARNETT KEITHLY | CFO | Buy (P) | 675 | $5K |
| May 22, 2025 | CHEN THOMAS C | CEO, Director, 10% Owner | Buy (P) | 3K | $20K |
| May 21, 2025 | CHEN THOMAS C | CEO, Director, 10% Owner | Buy (P) | 3K | $20K |
| May 19, 2025 | GARNETT KEITHLY | CFO | Buy (P) | 135 | $976 |
| Company | Co-held by | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 3 funds | $656.1M |
| UNITEDHEALTH GROUP INCUNH | 3 funds | $204.0M |
| ALPHABET INC-CL AGOOGL | 3 funds | $126.7M |
| CAPITAL ONE FINANCIAL CORPCOF | 3 funds | $117.7M |
| ELI LILLY & COLLY | 3 funds | $78.0M |
| GXO LOGISTICS INCGXO | 3 funds | $38.1M |
| WAVE LIFE SCIENCES LTDWVE | 3 funds | $35.6M |
| MOLINA HEALTHCARE INCMOH | 3 funds | $28.1M |
| SAREPTA THERAPEUTICS INCSRPT | 3 funds | $22.1M |
| BOOKING HOLDINGS INCBKNG | 3 funds | $21.7M |
| TG THERAPEUTICS INCTGTX | 3 funds | $20.3M |
| ALNYLAM PHARMACEUTICALS INCALNY | 3 funds | $20.2M |
Ranked by how many of NTHI'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 NTHI. 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.