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/CENX/capital-change-brief"
Use Arkolith's capital_change_brief for CENX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Glencore plc | $1.4B | 29.7M | —Held | Q2 2026 | |
| 2 | BlackRock, Inc. | $528.8M | 9.0M | ▼−5.0% Reduced · −474K sh | Q1 2026 | |
| 3 | STATE STREET CORP | $273.9M | 4.7M | ▲+8.7% Added · +372K sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $248.9M | 4.2M | ▲New +4.2M sh | Q1 2026 | |
| 5 | Sourcerock Group LLC | $157.7M | 2.7M | ▼−26% Reduced · −935K sh | Q1 2026 | |
| 6 | FMR LLC | $156.1M | 2.7M | ▲306× Added · +2.7M sh | Q1 2026 | |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | $151.8M | 2.6M | ▲New +2.6M sh | Q1 2026 | |
| 8 | DIMENSIONAL FUND ADVISORS LP | $128.6M | 2.2M | ▼−21% Reduced · −574K sh | Q1 2026 | |
| 9 | MILLENNIUM MANAGEMENT LLC | $116.7M | 2.0M | ▲+40% Added · +570K sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $93.0M | 1.6M | ▼−1.5% Reduced · −24K sh | Q1 2026 | |
| 11 | Encompass Capital Advisors LLC | $91.0M | 1.6M | ▲+210% Added · +1.1M sh | Q1 2026 | |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | $90.4M | 1.5M | ▲+17% Added · +222K sh | Q1 2026 | |
| 13 | D. E. Shaw & Co., Inc. | $84.1M | 1.4M | ▲+20% Added · +242K sh | Q1 2026 | |
| 14 | JANE STREET GROUP, LLC | $77.5M | 1.3M | ▲32× Added · +1.3M sh | Q1 2026 | |
| 15 | CITADEL ADVISORS LLC | $77.5M | 1.3M | ▲+89% Added · +624K sh | Q1 2026 | |
| 16 | Fisher Asset Management, LLC | $50.0M | 851K | ▼−1.8% Reduced · −16K sh | Q1 2026 | |
| 17 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $46.9M | 800K | ▼−46% Reduced · −694K sh | Q1 2026 | |
| 18 | Bridgewater Associates, LP | $43.0M | 733K | ▲+170% Added · +461K sh | Q1 2026 | |
| 19 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | $42.3M | 721K | ▼−23% Reduced · −220K sh | Q1 2026 | |
| 20 | BANK OF AMERICA CORP /DE/ | $35.7M | 609K | ▲+98% Added · +301K sh | Q1 2026 | |
| 21 | DEUTSCHE BANK AG\ | $35.1M | 598K | ▲+452% Added · +490K sh | Q1 2026 | |
| 22 | Qube Research & Technologies Ltd | $34.6M | 590K | ▼−19% Reduced · −136K sh | Q1 2026 | |
| 23 | UBS Group AG | $34.4M | 587K | ▼−47% Reduced · −525K sh | Q1 2026 | |
| 24 | Mountaineer Partners Management, LLC | $34.3M | 584K | ▼−4.0% Reduced · −24K sh | Q1 2026 | |
| 25 | Point72 Asset Management, L.P. | $33.4M | 569K | ▲+230% Added · +397K 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 15, 2026 | Bush Jennifer Mary | Director | Grant (A) | 2K | $0 |
| Jun 15, 2026 | Olivier Tamla A | Director | Grant (A) | 2K | $0 |
| Jun 15, 2026 | Berntzen Jarl | Director | Grant (A) | 2K | $0 |
| Jun 15, 2026 | Michelmore Andrew G | Director | Grant (A) | 2K | $0 |
| Jun 15, 2026 | Michelmore Andrew G | Director | Tax withholding (F) | 652 | $36K |
| Jun 15, 2026 | GLASSER ERROL | Director | Grant (A) | 2K | $0 |
| Mar 25, 2026 | Trpkovski Peter A | EVP, CFO | Sell (S) | 17K | $845K |
| Mar 16, 2026 | Gary Jesse E | President and CEO, Director | Sell (S) | 150K | $8.3M |
| Mar 12, 2026 | Calloway Kenneth L | SVP, Human Resources | Sell (S) | 18K | $1.0M |
| Mar 11, 2026 | Hoffman Robert F | SVP, IT and CAO | Sell (S) | 11K | $595K |
| Mar 4, 2026 | Glencore AG | 10% Owner | Sell (S) | 6.3M | $326.8M |
| Mar 4, 2026 | Hoffman Robert F | SVP, IT and CAO | Sell (S) | 10K | $563K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 121 funds | $39.0B |
| AMAZON.COM INCAMZN | 117 funds | $28.9B |
| META PLATFORMS INC-CLASS AMETA | 116 funds | $19.2B |
| ALPHABET INC-CL AGOOGL | 114 funds | $25.7B |
| NVIDIA CORPNVDA | 113 funds | $56.8B |
| ELI LILLY & COLLY | 113 funds | $10.4B |
| TESLA INCTSLA | 112 funds | $12.2B |
| BOSTON SCIENTIFIC CORPBSX | 112 funds | $2.2B |
| APPLE INCAAPL | 111 funds | $46.1B |
| BROADCOM INCAVGO | 111 funds | $21.4B |
| ALPHABET INC-CL CGOOG | 111 funds | $17.6B |
| MICRON TECHNOLOGY INCMU | 111 funds | $8.2B |
Ranked by how many of CENX'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 CENX. 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.