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 NFRX 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/NFRX"
Use Arkolith to show who owns NFRX, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $648K | 24K | ▼−13% Reduced · −4K 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 |
|---|---|---|---|---|---|
| Mar 4, 2026 | Frazier Casey Ryan | Insider | Buy (P) | 66 | $2K |
| Feb 27, 2026 | BECKER ROBERT | Insider | Buy (P) | 1K | $28K |
| Feb 27, 2026 | Goncu Hasan Ali | Insider | Buy (P) | 800 | $22K |
| Feb 26, 2026 | BECKER ROBERT | Insider | Buy (P) | 2K | $55K |
| Feb 24, 2026 | BECKER ROBERT | Insider | Buy (P) | 1K | $27K |
| Feb 12, 2026 | Harrison Street Real Assets Fund LLC | 10% Owner | Buy (P) | 1.5M | $40.0M |
| Feb 10, 2026 | Harrison Street Real Assets Fund LLC | 10% Owner | Buy (P) | 379K | $10.0M |
| Feb 9, 2026 | Harrison Street Real Assets Fund LLC | 10% Owner | Buy (P) | 384K | $10.0M |
| Feb 6, 2026 | Harrison Street Real Assets Fund LLC | 10% Owner | Buy (P) | 387K | $10.0M |
| Feb 5, 2026 | Harrison Street Real Assets Fund LLC | 10% Owner | Buy (P) | 390K | $10.0M |
| Feb 2, 2026 | Harrison Street Real Assets Fund LLC | 10% Owner | Buy (P) | 400K | $10.0M |
| Feb 24, 2002 | Frazier Casey Ryan | Insider | Buy (P) | 5K | $150K |
| Company | Co-held by | Combined value |
|---|---|---|
| SS SPDR S&P 500 ETF TRUST-USSPY | 3 funds | $13.5B |
| NVIDIA CORPNVDA | 3 funds | $3.5B |
| ISHARES CORE S&P 500 ETFIVV | 3 funds | $2.8B |
| AMAZON.COM INCAMZN | 3 funds | $2.6B |
| BROADCOM INCAVGO | 3 funds | $2.5B |
| MICRON TECHNOLOGY INCMU | 3 funds | $2.2B |
| PALANTIR TECHNOLOGIES INC-APLTR | 3 funds | $1.7B |
| SS SPDR DOW JONES INDUS AVGDIA | 3 funds | $1.6B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 3 funds | $1.6B |
| APPLE INCAAPL | 3 funds | $1.5B |
| SANDISK CORPSNDK | 3 funds | $1.5B |
| T-MOBILE US INCTMUS | 3 funds | $1.5B |
Ranked by how many of NFRX'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 NFRX. 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.