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 XLRN 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/XLRN"
Use Arkolith to show who owns XLRN, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | HUNTINGTON NATIONAL BANK | $358 | 2 | —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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Nov 19, 2021 | Hite Christopher | Director | Tender (U) | 930 | — |
| Nov 19, 2021 | Hite Christopher | Director | Disposed to issuer (D) | 10K | — |
| Nov 19, 2021 | Hite Christopher | Director | Disposed to issuer (D) | 2K | — |
| Nov 19, 2021 | Malik Kemal | Director | Tender (U) | 2K | — |
| Nov 19, 2021 | Malik Kemal | Director | Disposed to issuer (D) | 3K | — |
| Nov 19, 2021 | Malik Kemal | Director | Disposed to issuer (D) | 18K | — |
| Nov 19, 2021 | Zakrzewski Joseph S | Director | Tender (U) | 34K | — |
| Nov 19, 2021 | Zakrzewski Joseph S | Director | Disposed to issuer (D) | 3K | — |
| Nov 19, 2021 | Dable Habib J | CEO and President, Director | Tender (U) | 98K | — |
| Nov 19, 2021 | Dable Habib J | CEO and President, Director | Disposed to issuer (D) | 250K | — |
| Nov 19, 2021 | Dable Habib J | CEO and President, Director | Disposed to issuer (D) | 109K | — |
| Nov 19, 2021 | Dable Habib J | CEO and President, Director | Disposed to issuer (D) | 106K | — |
| Company | Co-held by | Combined value |
|---|---|---|
| META PLATFORMS INC-CLASS AMETA | 62 funds | $51.1B |
| ALPHABET INC-CL AGOOGL | 62 funds | $43.1B |
| EXXON MOBIL CORPXOM | 62 funds | $41.1B |
| HOME DEPOT INCHD | 62 funds | $30.1B |
| CHEVRON CORPCVX | 62 funds | $27.6B |
| INTEL CORPINTC | 62 funds | $24.0B |
| AMGEN INCAMGN | 62 funds | $19.1B |
| QUALCOMM INCQCOM | 62 funds | $14.2B |
| ABBVIE INCABBV | 62 funds | $14.0B |
| PAYPAL HOLDINGS INCPYPL | 62 funds | $6.1B |
| EBAY INCEBAY | 62 funds | $5.8B |
| ELECTRONIC ARTS INCEA | 62 funds | $5.3B |
Ranked by how many of XLRN'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 XLRN. 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.