82 tracked 13F filers disclose a position in ASTL as of the latest SEC 13F filings, a combined $198.2M in reported value. 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.
| # | 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. | $21.4M | 5.3M | ▼−12% Reduced · −751K sh | Q2 2026 | |
| 3 | BlackRock, Inc. | $17.0M | 4.1M | ▼−52% Reduced · −4.4M sh | Q1 2026 | |
| 4 | AEGIS FINANCIAL CORP | $7.2M | 1.8M | —Held | Q2 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 | Connor, Clark & Lunn Investment Management Ltd. | $5.6M | 1.4M | ▼−20% Reduced · −338K sh | Q2 2026 | |
| 8 | Sourcerock Group LLC | $5.4M | 1.3M | ▲New +1.3M sh | Q1 2026 | |
| 9 | Solas Capital Management, LLC | $4.3M | 1.0M | ▼−2.0% Reduced · −22K sh | Q1 2026 | |
| 10 | LM Asset Management Inc. | $4.1M | 1.0M | ▼−42% Reduced · −749K sh | Q2 2026 | |
| 11 | Bracebridge Capital, LLC | $3.7M | 925K | —Held | Q2 2026 | |
| 12 | JANE STREET GROUP, LLC | $3.7M | 896K | ▲+28% Added · +194K sh | Q1 2026 | |
| 13 | JB CAPITAL PARTNERS LP | $3.5M | 872K | —Held | Q2 2026 | |
| 14 | TD ASSET MANAGEMENT INC | $3.5M | 842K | ▼−50% Reduced · −846K sh | Q1 2026 | |
| 15 | Bain Capital Credit, LP | $3.3M | 826K | —Held | Q2 2026 | |
| 16 | TCW GROUP INC | $3.2M | 768K | ▲+14% Added · +96K sh | Q1 2026 | |
| 17 | MILLENNIUM MANAGEMENT LLC | $3.2M | 766K | ▲+28% Added · +169K sh | Q1 2026 | |
| 18 | Quadrature Capital Ltd | $2.8M | 682K | ▼−22% Reduced · −196K sh | Q2 2026 | |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.5M | 599K | ▼−15% Reduced · −104K sh | Q1 2026 | |
| 20 | Russell Investments Group, Ltd. | $2.4M | 572K | ▲+42% Added · +170K sh | Q1 2026 | |
| 21 | READYSTATE ASSET MANAGEMENT LP | $1.9M | 463K | ▼−28% Reduced · −177K sh | Q1 2026 | |
| 22 | DIMENSIONAL FUND ADVISORS LP | $1.5M | 362K | ▼−5.6% Reduced · −22K sh | Q1 2026 | |
| 23 | UBS Group AG | $1.3M | 307K | ▼−68% Reduced · −638K sh | Q1 2026 | |
| 24 | BANK OF MONTREAL /CAN/ | $1.1M | 273K | ▲+34% Added · +69K sh | Q1 2026 | |
| 25 | D. E. Shaw & Co., Inc. | $1.1M | 271K | ▼−48% Reduced · −253K 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.
Last quarter, 11 funds opened a new position in ASTL and 12 added to an existing one, while 17 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| UNITEDHEALTH GROUP INCUNH | 35 funds | $4.0B |
| MICROSOFT CORPMSFT | 34 funds | $29.3B |
| META PLATFORMS INC-CLASS AMETA | 34 funds | $16.1B |
| BANK OF AMERICA CORPBAC | 34 funds | $4.8B |
| NVIDIA CORPNVDA | 33 funds | $46.5B |
| ANALOG DEVICES INCADI | 33 funds | $3.1B |
| AMAZON.COM INCAMZN | 32 funds | $27.2B |
| ELI LILLY & COLLY | 32 funds | $7.8B |
| COSTCO WHOLESALE CORPCOST | 32 funds | $7.4B |
| VISA INC-CLASS A SHARESV | 32 funds | $7.2B |
| GENERAL ELECTRICGE | 32 funds | $3.1B |
| 3M COMMM | 32 funds | $1.9B |
Ranked by how many of ASTL's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
| Class | 13F holders | Value held |
|---|---|---|
| ASTLthis pageStock | 82 funds | $198.2M |
| ASTLWWarrant | 17 funds | $1.8M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
No filings captured for this ticker in the live stream yet.
Connected entities for ASTL
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.
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.