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/ZETA/capital-change-brief"
Use Arkolith's capital_change_brief for ZETA. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $286.3M | 18.0M | ▲+7.2% Added · +1.2M sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $204.9M | 12.9M | ▲New +12.9M sh | Q1 2026 | |
| 3 | Greenvale Capital LLP | $165.6M | 10.4M | ▲+48% Added · +3.4M sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $143.2M | 9.0M | ▲New +9.0M sh | Q1 2026 | |
| 5 | DISCIPLINED GROWTH INVESTORS INC /MN | $98.0M | 6.2M | ▲+12% Added · +653K sh | Q1 2026 | |
| 6 | Neuberger Berman Group LLC | $93.5M | 5.9M | ▲+1.9% Added · +111K sh | Q1 2026 | |
| 7 | GOLDMAN SACHS GROUP INC | $87.3M | 5.5M | ▼−1.7% Reduced · −96K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $81.9M | 5.1M | ▲+13% Added · +608K sh | Q1 2026 | |
| 9 | Contour Asset Management LLC | $80.6M | 5.1M | ▼−55% Reduced · −6.1M sh | Q1 2026 | |
| 10 | JANE STREET GROUP, LLC | $79.2M | 5.0M | ▲+201% Added · +3.3M sh | Q1 2026 | |
| 11 | STATE STREET CORP | $77.8M | 4.9M | ▲+9.2% Added · +413K sh | Q1 2026 | |
| 12 | UBS Group AG | $76.8M | 4.8M | ▲+247% Added · +3.4M sh | Q1 2026 | |
| 13 | BANK OF AMERICA CORP /DE/ | $61.4M | 3.9M | ▲+48% Added · +1.2M sh | Q1 2026 | |
| 14 | DIMENSIONAL FUND ADVISORS LP | $45.6M | 2.9M | ▲+76% Added · +1.2M sh | Q1 2026 | |
| 15 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | $38.8M | 2.4M | ▲+19% Added · +392K sh | Q1 2026 | |
| 16 | NORGES BANK | $47.0M | 2.3M | ▲+6.8% Added · +147K sh | Q4 2025 | |
| 17 | MARSHALL WACE, LLP | $36.6M | 2.3M | ▲+27% Added · +492K sh | Q1 2026 | |
| 18 | NORTHERN TRUST CORP | $35.4M | 2.2M | ▲+6.8% Added · +142K sh | Q1 2026 | |
| 19 | MORGAN STANLEY | $35.2M | 2.2M | ▲+51% Added · +746K sh | Q1 2026 | |
| 20 | Clearbridge Investments, LLC | $33.3M | 2.1M | ▼−7.0% Reduced · −159K sh | Q1 2026 | |
| 21 | Stephens Investment Management Group LLC | $32.3M | 2.0M | ▼−0.5% Reduced · −11K sh | Q1 2026 | |
| 22 | Nuveen, LLC | $30.5M | 1.9M | ▲+3.0% Added · +56K sh | Q1 2026 | |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $26.8M | 1.7M | ▲+3.5% Added · +58K sh | Q1 2026 | |
| 24 | CITADEL ADVISORS LLC | $26.6M | 1.7M | ▼−17% Reduced · −348K sh | Q1 2026 | |
| 25 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $25.4M | 1.6M | ▲+5.1% Added · +77K 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 |
|---|---|---|---|---|---|
| Jul 1, 2026 | Silberblatt Jeanine | Director | Grant (A) | 7K | $0 |
| Jul 1, 2026 | NIEHAUS ROBERT H | Director | Grant (A) | 7K | $0 |
| Jul 1, 2026 | Elzie Jene | Director | Grant (A) | 7K | $0 |
| Jul 1, 2026 | Royan William T. | Director | Grant (A) | 7K | $0 |
| Jul 1, 2026 | LANDMAN WILLIAM | Director | Grant (A) | 7K | $0 |
| Jul 1, 2026 | LANDMAN WILLIAM | Director | Grant (A) | 1K | $25K |
| Jun 12, 2026 | Silberblatt Jeanine | Director | Sell (S) | 8K | $149K |
| Jun 4, 2026 | Ravella Satish | Chief Accounting Officer | Gift (G) | 8K | $0 |
| Jun 2, 2026 | Ravella Satish | Chief Accounting Officer | Option exercise (M) | 25K | $314K |
| Jun 2, 2026 | Ravella Satish | Chief Accounting Officer | Tax withholding (F) | 17K | $437K |
| Jun 2, 2026 | Ravella Satish | Chief Accounting Officer | Option exercise (M) | 25K | $0 |
| May 20, 2026 | Gerber Steven H. | President | Gift (G) | 724K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 114 funds | $43.2B |
| AMAZON.COM INCAMZN | 110 funds | $33.7B |
| META PLATFORMS INC-CLASS AMETA | 110 funds | $20.5B |
| ALPHABET INC-CL AGOOGL | 109 funds | $29.5B |
| NVIDIA CORPNVDA | 108 funds | $67.3B |
| BROADCOM INCAVGO | 108 funds | $23.4B |
| ELI LILLY & COLLY | 108 funds | $11.0B |
| ALPHABET INC-CL CGOOG | 107 funds | $19.1B |
| COSTCO WHOLESALE CORPCOST | 107 funds | $8.1B |
| MICRON TECHNOLOGY INCMU | 106 funds | $8.7B |
| MASTERCARD INC - AMA | 106 funds | $8.4B |
| ADVANCED MICRO DEVICESAMD | 106 funds | $6.8B |
Ranked by how many of ZETA'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 ZETA. 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.