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 AMRZ 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/AMRZ"
Use Arkolith to show who owns AMRZ, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Zurcher Kantonalbank (Zurich Cantonalbank) | $578.8M | 10.7M | ▲+10% Added · +1.0M sh | Q1 2026 | |
| 2 | VANGUARD FIDUCIARY TRUST CO | $396.0M | 7.1M | ▲New +7.1M sh | Q1 2026 | |
| 3 | Allspring Global Investments Holdings, LLC | $263.4M | 4.8M | ▲+3.7% Added · +172K sh | Q1 2026 | |
| 4 | STATE STREET CORP | $258.2M | 4.6M | ▲+5.0% Added · +222K sh | Q1 2026 | |
| 5 | Vontobel Holding Ltd. | $221.2M | 4.1M | ▼−12% Reduced · −536K sh | Q1 2026 | |
| 6 | FIRST MANHATTAN CO. LLC. | $220.6M | 3.9M | ▼−2.4% Reduced · −99K sh | Q1 2026 | |
| 7 | Slate Path Capital LP | $210.2M | 3.8M | ▼−36% Reduced · −2.1M sh | Q1 2026 | |
| 8 | First Pacific Advisors, LP | $176.3M | 3.1M | ▼−7.7% Reduced · −262K sh | Q1 2026 | |
| 9 | Gates Capital Management, Inc. | $135.2M | 2.4M | ▼−1.3% Reduced · −32K sh | Q1 2026 | |
| 10 | Bank Julius Baer & Co. Ltd, Zurich | $113.3M | 2.0M | ▼−5.7% Reduced · −124K sh | Q1 2026 | |
| 11 | VANGUARD PORTFOLIO MANAGEMENT LLC | $79.6M | 1.4M | ▲New +1.4M sh | Q1 2026 | |
| 12 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | $71.3M | 1.3M | ▲+8.4% Added · +98K sh | Q1 2026 | |
| 13 | DJE Kapital AG | $60.2M | 1.1M | ▲+46% Added · +350K sh | Q1 2026 | |
| 14 | CAMBIAR INVESTORS LLC | $59.2M | 1.1M | ▼−3.0% Reduced · −32K sh | Q1 2026 | |
| 15 | Universal- Beteiligungs- und Servicegesellschaft mbH | $58.0M | 1.0M | ▼−7.2% Reduced · −81K sh | Q1 2026 | |
| 16 | CITADEL ADVISORS LLC | $38.0M | 679K | ▲+77% Added · +296K sh | Q1 2026 | |
| 17 | TEACHER RETIREMENT SYSTEM OF TEXAS | $30.1M | 537K | ▼−17% Reduced · −110K sh | Q1 2026 | |
| 18 | SAMLYN CAPITAL, LLC | $28.1M | 502K | ▲+70% Added · +207K sh | Q1 2026 | |
| 19 | Compagnie Lombard Odier SCmA | $24.6M | 455K | ▼−5.7% Reduced · −28K sh | Q1 2026 | |
| 20 | AVIVA PLC | $16.4M | 294K | ▲+2.5% Added · +7K sh | Q1 2026 | |
| 21 | BW Gestao de Investimentos Ltda. | $15.8M | 281K | ▲+114% Added · +150K sh | Q1 2026 | |
| 22 | ASSETMARK, INC | $14.1M | 251K | ▲187× Added · +250K sh | Q1 2026 | |
| 23 | Ancora Advisors LLC | $12.9M | 231K | ▼−7.0% Reduced · −17K sh | Q1 2026 | |
| 24 | GREAT LAKES ADVISORS, LLC | $12.9M | 231K | ▼−19% Reduced · −53K sh | Q1 2026 | |
| 25 | EFG International AG | $12.7M | 227K | ▲+65% Added · +89K 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 |
|---|---|---|---|---|---|
| Mar 21, 2026 | Gosa James J | President, Building Envelope | Tax withholding (F) | 15K | $764K |
| Mar 13, 2026 | Gross Mario | Chief Supply Chain Officer | Buy (P) | 1K | $66K |
| Mar 13, 2026 | Brouwer Roald | Chief Technology Officer | Buy (P) | 2K | $110K |
| Mar 13, 2026 | Gross Mario | Chief Supply Chain Officer | Buy (P) | 2K | $111K |
| Mar 12, 2026 | Hill Jaime | President, Building Materials | Buy (P) | 1K | $57K |
| Mar 11, 2026 | Brouwer Roald | Chief Technology Officer | Buy (P) | 3K | $176K |
| Mar 11, 2026 | Hill Jaime | President, Building Materials | Buy (P) | 1K | $59K |
| Mar 10, 2026 | Johnston Ian A | Chief Financial Officer | Buy (P) | 4K | $250K |
| Mar 9, 2026 | Hill Jaime | President, Building Materials | Buy (P) | 3K | $179K |
| Mar 6, 2026 | Jenisch Jan Philipp | Chairman & CEO, Director | Buy (P) | 60K | $3.5M |
| Feb 27, 2026 | Johnston Ian A | Chief Financial Officer | Grant (A) | 4K | $0 |
| Feb 27, 2026 | Johnston Ian A | Chief Financial Officer | Tax withholding (F) | 2K | $126K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 144 funds | $73.0B |
| ALPHABET INC-CL AGOOGL | 144 funds | $50.8B |
| META PLATFORMS INC-CLASS AMETA | 143 funds | $32.4B |
| AMAZON.COM INCAMZN | 142 funds | $54.0B |
| JPMORGAN CHASE & COJPM | 142 funds | $22.5B |
| NVIDIA CORPNVDA | 141 funds | $98.2B |
| BROADCOM INCAVGO | 141 funds | $37.4B |
| ELI LILLY & COLLY | 141 funds | $19.3B |
| APPLE INCAAPL | 138 funds | $84.7B |
| TESLA INCTSLA | 138 funds | $19.2B |
| UNITEDHEALTH GROUP INCUNH | 138 funds | $7.7B |
| SERVICENOW INCNOW | 138 funds | $4.0B |
Ranked by how many of AMRZ'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 AMRZ. 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.