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/ZG/capital-change-brief"
Use Arkolith's capital_change_brief for ZG. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Caledonia (Private) Investments Pty Ltd | $470.6M | 11.4M | ▼−0.1% Reduced · −16K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $163.5M | 3.9M | ▲New +3.9M sh | Q1 2026 | |
| 3 | Independent Franchise Partners LLP | $113.3M | 2.7M | ▲+35% Added · +714K sh | Q1 2026 | |
| 4 | BlackRock, Inc. | $98.7M | 2.4M | ▲+0.5% Added · +13K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $93.1M | 2.2M | ▲New +2.2M sh | Q1 2026 | |
| 6 | NORGES BANK | $152.1M | 2.2M | ▼−4.5% Reduced · −104K sh | Q4 2025 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $43.9M | 1.1M | ▲+1.0% Added · +10K sh | Q1 2026 | |
| 8 | TIGER GLOBAL MANAGEMENT LLC | $42.4M | 1.0M | —Held | Q1 2026 | |
| 9 | UBS Group AG | $34.6M | 836K | ▼−18% Reduced · −183K sh | Q1 2026 | |
| 10 | STATE STREET CORP | $30.4M | 734K | ▲+0.7% Added · +5K sh | Q1 2026 | |
| 11 | MORGAN STANLEY | $23.6M | 570K | ▲+138% Added · +330K sh | Q1 2026 | |
| 12 | DIMENSIONAL FUND ADVISORS LP | $22.9M | 554K | ▲+18% Added · +85K sh | Q1 2026 | |
| 13 | D. E. Shaw & Co., Inc. | $22.0M | 531K | ▲+563% Added · +451K sh | Q1 2026 | |
| 14 | Oakum Bay Capital LLC | $15.6M | 377K | ▲+52% Added · +128K sh | Q1 2026 | |
| 15 | MILLENNIUM MANAGEMENT LLC | $15.3M | 369K | ▲+222% Added · +254K sh | Q1 2026 | |
| 16 | AQR CAPITAL MANAGEMENT LLC | $15.1M | 365K | ▲13× Added · +337K sh | Q1 2026 | |
| 17 | BALYASNY ASSET MANAGEMENT L.P. | $13.9M | 335K | ▲+207% Added · +226K sh | Q1 2026 | |
| 18 | COATUE MANAGEMENT LLC | $13.6M | 328K | ▲New +328K sh | Q1 2026 | |
| 19 | Point72 Asset Management, L.P. | $13.3M | 321K | ▲New +321K sh | Q1 2026 | |
| 20 | VANGUARD FIDUCIARY TRUST CO | $12.5M | 303K | ▲New +303K sh | Q1 2026 | |
| 21 | HARVARD MANAGEMENT CO INC | $11.8M | 285K | ▼−5.4% Reduced · −16K sh | Q1 2026 | |
| 22 | FAYEZ SAROFIM & CO | $10.7M | 258K | ▼−0.6% Reduced · −2K sh | Q1 2026 | |
| 23 | RAYMOND JAMES FINANCIAL INC | $9.6M | 232K | ▲+5.4% Added · +12K sh | Q1 2026 | |
| 24 | RENAISSANCE TECHNOLOGIES LLC | $9.1M | 221K | ▼−19% Reduced · −51K sh | Q1 2026 | |
| 25 | NORTHERN TRUST CORP | $8.9M | 215K | ▼−3.9% Reduced · −9K 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 | 81 funds | $28.4B |
| META PLATFORMS INC-CLASS AMETA | 81 funds | $17.6B |
| NVIDIA CORPNVDA | 80 funds | $49.5B |
| MICROSOFT CORPMSFT | 80 funds | $34.4B |
| ALPHABET INC-CL AGOOGL | 79 funds | $24.9B |
| BROADCOM INCAVGO | 79 funds | $20.0B |
| ALPHABET INC-CL CGOOG | 79 funds | $16.3B |
| APPLIED MATERIALS INCAMAT | 79 funds | $6.6B |
| TESLA INCTSLA | 78 funds | $9.4B |
| VISA INC-CLASS A SHARESV | 78 funds | $7.5B |
| LAM RESEARCH CORPLRCX | 78 funds | $6.7B |
| UBER TECHNOLOGIES INCUBER | 78 funds | $1.7B |
Ranked by how many of ZG'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 ZG. 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.