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 RPTX 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/RPTX"
Use Arkolith to show who owns RPTX, 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 |
|---|---|---|---|---|---|
| Jan 28, 2026 | BVF PARTNERS L P/IL | 10% Owner | Tender (U) | 4.3M | — |
| Jan 28, 2026 | BVF PARTNERS L P/IL | 10% Owner | Tender (U) | 5.3M | — |
| Jan 28, 2026 | BVF PARTNERS L P/IL | 10% Owner | Tender (U) | 549K | — |
| Jan 28, 2026 | RHOADS ANN D | Director | Disposed to issuer (D) | 4K | — |
| Jan 28, 2026 | SCHAFER CAROL | Director | Disposed to issuer (D) | 8K | — |
| Jan 28, 2026 | SCHAFER CAROL | Director | Disposed to issuer (D) | 38K | $0 |
| Jan 28, 2026 | Civik Thomas | Director | Disposed to issuer (D) | 8K | — |
| Jan 28, 2026 | Forte Steve | EVP, CHIEF FINANCIAL OFFICER | Disposed to issuer (D) | 57K | — |
| Jan 28, 2026 | Forte Steve | EVP, CHIEF FINANCIAL OFFICER | Disposed to issuer (D) | 326K | $0 |
| Jan 28, 2026 | Forte Steve | EVP, CHIEF FINANCIAL OFFICER | Disposed to issuer (D) | 500K | $0 |
| Jan 28, 2026 | Forte Steve | EVP, CHIEF FINANCIAL OFFICER | Disposed to issuer (D) | 85K | $0 |
| Jan 28, 2026 | Forte Steve | EVP, CHIEF FINANCIAL OFFICER | Disposed to issuer (D) | 200K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| ELI LILLY & COLLY | 38 funds | $16.7B |
| T-MOBILE US INCTMUS | 38 funds | $9.9B |
| VISA INC-CLASS A SHARESV | 37 funds | $45.8B |
| BRISTOL-MYERS SQUIBB COBMY | 37 funds | $18.7B |
| PFIZER INCPFE | 37 funds | $17.3B |
| BOSTON SCIENTIFIC CORPBSX | 37 funds | $8.0B |
| THE CIGNA GROUPCI | 37 funds | $7.9B |
| MICROSOFT CORPMSFT | 36 funds | $173.3B |
| AMAZON.COM INCAMZN | 36 funds | $131.4B |
| META PLATFORMS INC-CLASS AMETA | 36 funds | $61.1B |
| ALPHABET INC-CL CGOOG | 36 funds | $55.0B |
| HOME DEPOT INCHD | 36 funds | $35.5B |
Ranked by how many of RPTX'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 RPTX. 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.