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 RAPT 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/RAPT"
Use Arkolith to show who owns RAPT, which funds added or reduced it, and which SEC filings prove each claim.
Not held in any tracked 13F filing yet.
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 3, 2026 | GRAY MARY ANN | Director | Tender (U) | 5K | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 478 | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 32K | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 8K | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 5K | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 1K | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 2K | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 560 | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 1K | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 484 | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 938 | — |
| Mar 3, 2026 | GRAY MARY ANN | Director | Disposed to issuer (D) | 3K | — |
| Company | Co-held by | Combined value |
|---|---|---|
| COGENT BIOSCIENCES INCCOGT | 26 funds | $789.0M |
| BOSTON SCIENTIFIC CORPBSX | 25 funds | $1.4B |
| REVOLUTION MEDICINES INCRVMD | 25 funds | $564.6M |
| ELI LILLY & COLLY | 24 funds | $2.6B |
| INTUITIVE SURGICAL INCISRG | 24 funds | $1.9B |
| TANGO THERAPEUTICS INCTNGX | 24 funds | $716.2M |
| SAVARA INCSVRA | 24 funds | $206.8M |
| MICROSOFT CORPMSFT | 23 funds | $10.4B |
| AMAZON.COM INCAMZN | 23 funds | $9.6B |
| UNITEDHEALTH GROUP INCUNH | 23 funds | $2.0B |
| NEUROCRINE BIOSCIENCES INCNBIX | 23 funds | $444.8M |
| APELLIS PHARMACEUTICALS INCAPLSUSD | 23 funds | $441.6M |
Ranked by how many of RAPT'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 RAPT. 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.