This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ASTL/capital-change-brief"
Use Arkolith's capital_change_brief for ASTL. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Maple Rock Capital Partners Inc. | $65.8M | 15.9M | ▲+10% Added · +1.5M sh | Q1 2026 | |
| 2 | DONALD SMITH & CO., INC. | $24.9M | 6.0M | ▲+2.9% Added · +167K sh | Q1 2026 | |
| 3 | BlackRock, Inc. | $17.0M | 4.1M | ▼−52% Reduced · −4.4M sh | Q1 2026 | |
| 4 | Connor, Clark & Lunn Investment Management Ltd. | $7.1M | 1.7M | ▼−24% Reduced · −539K sh | Q1 2026 | |
| 5 | CDC Financial, Inc. | $6.7M | 1.6M | ▲+2.1% Added · +33K sh | Q1 2026 | |
| 6 | MORGAN STANLEY | $6.1M | 1.5M | ▲+43% Added · +443K sh | Q1 2026 | |
| 7 | Sourcerock Group LLC | $5.4M | 1.3M | ▲New +1.3M sh | Q1 2026 | |
| 8 | Solas Capital Management, LLC | $4.3M | 1.0M | ▼−2.0% Reduced · −22K sh | Q1 2026 | |
| 9 | Bracebridge Capital, LLC | Withheld | 925K | —Held | Q1 2026 | |
| 10 | JANE STREET GROUP, LLC | $3.7M | 896K | ▲+28% Added · +194K sh | Q1 2026 | |
| 11 | Quadrature Capital Ltd | $3.6M | 879K | ▼−14% Reduced · −140K sh | Q1 2026 | |
| 12 | TD ASSET MANAGEMENT INC | $3.5M | 842K | ▼−50% Reduced · −846K sh | Q1 2026 | |
| 13 | TCW GROUP INC | $3.2M | 768K | ▲+14% Added · +96K sh | Q1 2026 | |
| 14 | MILLENNIUM MANAGEMENT LLC | $3.2M | 766K | ▲+28% Added · +169K sh | Q1 2026 | |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.5M | 599K | ▼−15% Reduced · −104K sh | Q1 2026 | |
| 16 | Russell Investments Group, Ltd. | $2.4M | 572K | ▲+42% Added · +170K sh | Q1 2026 | |
| 17 | READYSTATE ASSET MANAGEMENT LP | $1.9M | 463K | ▼−28% Reduced · −177K sh | Q1 2026 | |
| 18 | DIMENSIONAL FUND ADVISORS LP | $1.5M | 362K | ▼−5.6% Reduced · −22K sh | Q1 2026 | |
| 19 | UBS Group AG | $1.3M | 307K | ▼−68% Reduced · −638K sh | Q1 2026 | |
| 20 | BANK OF MONTREAL /CAN/ | $1.1M | 273K | ▲+34% Added · +69K sh | Q1 2026 | |
| 21 | D. E. Shaw & Co., Inc. | $1.1M | 271K | ▼−48% Reduced · −253K sh | Q1 2026 | |
| 22 | TWO SIGMA INVESTMENTS, LP | $1.1M | 270K | ▲New +270K sh | Q1 2026 | |
| 23 | CITADEL ADVISORS LLC | $1.1M | 268K | ▼−57% Reduced · −355K sh | Q1 2026 | |
| 24 | GOLDMAN SACHS GROUP INC | $1.0M | 252K | ▲+63% Added · +97K sh | Q1 2026 | |
| 25 | CenterBook Partners LP | $964K | 234K | ▼−41% Reduced · −165K 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.
No Form 4 insider transactions on file yet.
| Company | Co-held by | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 25 funds | $6.9B |
| MICROSOFT CORPMSFT | 25 funds | $6.3B |
| BROADCOM INCAVGO | 25 funds | $4.2B |
| TESLA INCTSLA | 25 funds | $2.3B |
| UNITEDHEALTH GROUP INCUNH | 25 funds | $1.6B |
| BOSTON SCIENTIFIC CORPBSX | 25 funds | $929.9M |
| CAPITAL ONE FINANCIAL CORPCOF | 25 funds | $880.8M |
| INTEL CORPINTC | 25 funds | $767.2M |
| META PLATFORMS INC-CLASS AMETA | 24 funds | $3.8B |
| MICRON TECHNOLOGY INCMU | 24 funds | $2.9B |
| VISA INC-CLASS A SHARESV | 24 funds | $2.0B |
| ELI LILLY & COLLY | 24 funds | $1.6B |
Ranked by how many of ASTL's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
No filings captured for this ticker in the live stream yet.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ASTL. 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.