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 ATCX 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/ATCX"
Use Arkolith to show who owns ATCX, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Dayah Capital LLC | $261K | 47K | ▲New +47K sh | Q1 2026 | |
| 2 | CITADEL ADVISORS LLC | $243K | 44K | ▲New +44K sh | Q1 2026 | |
| 3 | JANE STREET GROUP, LLC | $124K | 22K | ▲New +22K sh | Q1 2026 | |
| 4 | UBS Group AG | $117K | 21K | ▲New +21K sh | Q1 2026 | |
| 5 | MORGAN STANLEY | $10K | 2K | ▲New +2K sh | Q1 2026 | |
| 6 | Tower Research Capital LLC (TRC) | $2K | 290 | ▲New +290 sh | Q1 2026 | |
| 7 | Allied Private Wealth LLC | $422 | 120 | ▲New +120 sh | Q2 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 |
|---|---|---|---|---|---|
| Apr 19, 2023 | Boyer Lonnie Joe | Chief Executive Officer, Director | Disposed to issuer (D) | 906K | $11.1M |
| Apr 19, 2023 | Boyer Lonnie Joe | Chief Executive Officer, Director | Other (J) | 92K | $1.1M |
| Apr 19, 2023 | Boyer Lonnie Joe | Chief Executive Officer, Director | Disposed to issuer (D) | 213K | $2.6M |
| Apr 19, 2023 | Burns Kenneth Jerome JR | Chief Operating Officer | Disposed to issuer (D) | 93K | $1.1M |
| Apr 19, 2023 | Burns Kenneth Jerome JR | Chief Operating Officer | Disposed to issuer (D) | 45K | $557K |
| Apr 19, 2023 | Desai Harshal | Chief Growth Officer | Other (J) | 803 | $10K |
| Apr 19, 2023 | Desai Harshal | Chief Growth Officer | Disposed to issuer (D) | 22K | $273K |
| Apr 19, 2023 | Desai Harshal | Chief Growth Officer | Disposed to issuer (D) | 6K | $75K |
| Apr 19, 2023 | DUNCAN R FOSTER | Director | Disposed to issuer (D) | 45K | $556K |
| Apr 19, 2023 | FERRAIOLI BRIAN K | Director | Disposed to issuer (D) | 85K | $1.0M |
| Apr 19, 2023 | FERRAIOLI BRIAN K | Director | Disposed to issuer (D) | 31K | $383K |
| Apr 19, 2023 | Lemoine Leonard Kyle | Director | Disposed to issuer (D) | 111K | $1.4M |
| Company | Co-held by | Combined value |
|---|---|---|
| BOEING CO/THEBA | 6 funds | $3.7B |
| FREEPORT-MCMORAN INCFCX | 6 funds | $2.5B |
| FEDEX CORPFDX | 6 funds | $2.0B |
| NUCOR CORPNUE | 6 funds | $931.6M |
| STEEL DYNAMICS INCSTLD | 6 funds | $754.9M |
| ATI INCATI | 6 funds | $712.2M |
| QNITY ELECTRONICS INCQ | 6 funds | $691.9M |
| SOLSTICE ADV MATERIALS INCSOLS | 6 funds | $688.4M |
| FIRST SOLAR INCFSLR | 6 funds | $638.3M |
| DARLING INGREDIENTS INCDAR | 6 funds | $626.9M |
| DUPONT DE NEMOURS INCDD | 6 funds | $589.7M |
| PACKAGING CORP OF AMERICAPKG | 6 funds | $490.9M |
Ranked by how many of ATCX'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 ATCX. 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.