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 ZGN 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/ZGN"
Use Arkolith to show who owns ZGN, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Temasek Holdings (Private) Ltd | $283.9M | 27.2M | —Held | Q1 2026 | |
| 2 | Eurizon Capital SGR S.p.A. | $20.9M | 2.0M | ▲New +2.0M sh | Q1 2026 | |
| 3 | Point72 Asset Management, L.P. | $20.6M | 2.0M | ▲11× Added · +1.8M sh | Q1 2026 | |
| 4 | STATE STREET CORP | $10.2M | 977K | ▲+11% Added · +98K sh | Q1 2026 | |
| 5 | OSBORNE PARTNERS CAPITAL MANAGEMENT, LLC | $9.8M | 942K | ▲+35% Added · +243K sh | Q1 2026 | |
| 6 | Portolan Capital Management, LLC | $7.4M | 711K | ▲~0% Added · +92 sh | Q1 2026 | |
| 7 | Walleye Capital LLC | $6.9M | 666K | ▲20× Added · +633K sh | Q1 2026 | |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | $3.8M | 365K | ▲New +365K sh | Q1 2026 | |
| 9 | EDMOND DE ROTHSCHILD HOLDING S.A. | $3.8M | 360K | —Held | Q1 2026 | |
| 10 | FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. | $3.7M | 355K | ▲+82% Added · +160K sh | Q1 2026 | |
| 11 | CastleKnight Management LP | $1.1M | 109K | ▼−31% Reduced · −50K sh | Q1 2026 | |
| 12 | RENAISSANCE GROUP LLC | $965K | 93K | ▼−2.7% Reduced · −3K sh | Q1 2026 | |
| 13 | OCCUDO QUANTITATIVE STRATEGIES LP | $896K | 74K | ▼−16% Reduced · −15K sh | Q1 2026 | |
| 14 | VANGUARD FIDUCIARY TRUST CO | $559K | 54K | ▲New +54K sh | Q1 2026 | |
| 15 | LOS ANGELES CAPITAL MANAGEMENT LLC | $536K | 51K | ▲+4.0% Added · +2K sh | Q1 2026 | |
| 16 | MOORE CAPITAL MANAGEMENT, LP | $521K | 50K | —Held | Q1 2026 | |
| 17 | MetLife Investment Management, LLC | $395K | 38K | —Held | Q1 2026 | |
| 18 | Bank Julius Baer & Co. Ltd, Zurich | $365K | 35K | —Held | Q1 2026 | |
| 19 | INTECH INVESTMENT MANAGEMENT LLC | $219K | 21K | ▼−43% Reduced · −16K sh | Q1 2026 | |
| 20 | Centiva Capital, LP | $205K | 20K | ▲New +20K sh | Q1 2026 | |
| 21 | Schonfeld Strategic Advisors LLC | $194K | 19K | ▼−78% Reduced · −68K sh | Q1 2026 | |
| 22 | Vident Advisory, LLC | $179K | 17K | ▼−4.7% Reduced · −839 sh | Q1 2026 | |
| 23 | Savant Capital, LLC | $152K | 15K | ▼−9.5% Reduced · −2K sh | Q1 2026 | |
| 24 | Vanguard Personalized Indexing Management, LLC | $107K | 10K | ▲New +10K sh | Q1 2026 | |
| 25 | Ameritas Investment Partners, Inc. | $54K | 5K | —Held | 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 |
|---|---|---|
| MICROSOFT CORPMSFT | 41 funds | $14.6B |
| META PLATFORMS INC-CLASS AMETA | 41 funds | $7.0B |
| NVIDIA CORPNVDA | 40 funds | $24.0B |
| AMAZON.COM INCAMZN | 40 funds | $12.0B |
| ALPHABET INC-CL AGOOGL | 40 funds | $10.3B |
| BROADCOM INCAVGO | 39 funds | $9.2B |
| ALPHABET INC-CL CGOOG | 39 funds | $6.3B |
| VISA INC-CLASS A SHARESV | 39 funds | $5.7B |
| ORACLE CORPORCL | 39 funds | $2.3B |
| NETFLIX INCNFLX | 39 funds | $2.2B |
| LAM RESEARCH CORPLRCX | 39 funds | $2.2B |
| FREEPORT-MCMORAN INCFCX | 39 funds | $628.1M |
Ranked by how many of ZGN'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 ZGN. 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.