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/RBRK/capital-change-brief"
Use Arkolith's capital_change_brief for RBRK. 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. | $431.8M | 8.8M | ▼−25% Reduced · −2.9M sh | Q1 2026 | |
| 2 | FMR LLC | $404.6M | 8.3M | ▲+57% Added · +3.0M sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $393.2M | 8.0M | ▲New +8.0M sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $321.0M | 6.6M | ▲New +6.6M sh | Q1 2026 | |
| 5 | FIRST TRUST ADVISORS LP | $239.7M | 4.9M | ▼−31% Reduced · −2.2M sh | Q1 2026 | |
| 6 | NORGES BANK | $345.9M | 4.5M | ▲+85% Added · +2.1M sh | Q4 2025 | |
| 7 | VOYA INVESTMENT MANAGEMENT LLC | $183.0M | 3.7M | ▼−2.4% Reduced · −93K sh | Q1 2026 | |
| 8 | PointState Capital LP | $178.6M | 3.6M | ▲+74% Added · +1.5M sh | Q1 2026 | |
| 9 | Pictet Asset Management Holding SA | $162.6M | 3.3M | ▲+104% Added · +1.7M sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $132.4M | 2.7M | ▲+6.9% Added · +174K sh | Q1 2026 | |
| 11 | STATE STREET CORP | $125.7M | 2.6M | ▲+8.9% Added · +210K sh | Q1 2026 | |
| 12 | TWO SIGMA INVESTMENTS, LP | $113.3M | 2.3M | ▲+223% Added · +1.6M sh | Q1 2026 | |
| 13 | AQR CAPITAL MANAGEMENT LLC | $104.9M | 2.2M | ▲+105% Added · +1.1M sh | Q1 2026 | |
| 14 | UBS Group AG | $95.7M | 2.0M | ▲+206% Added · +1.3M sh | Q1 2026 | |
| 15 | JPMORGAN CHASE & CO | $83.4M | 1.8M | ▲+44% Added · +558K sh | Q1 2026 | |
| 16 | Legal & General Group Plc | $89.3M | 1.8M | ▼−4.3% Reduced · −81K sh | Q1 2026 | |
| 17 | MORGAN STANLEY | $84.3M | 1.7M | ▲+39% Added · +479K sh | Q1 2026 | |
| 18 | Clearbridge Investments, LLC | $70.9M | 1.4M | ▲+6.2% Added · +84K sh | Q1 2026 | |
| 19 | FEDERATED HERMES, INC. | $64.5M | 1.3M | ▼−46% Reduced · −1.1M sh | Q1 2026 | |
| 20 | Champlain Investment Partners, LLC | $61.7M | 1.3M | ▲New +1.3M sh | Q1 2026 | |
| 21 | BNP PARIBAS FINANCIAL MARKETS | $60.3M | 1.2M | ▲+3.4% Added · +40K sh | Q1 2026 | |
| 22 | WELLS FARGO & COMPANY/MN | $57.8M | 1.2M | ▲+204% Added · +792K sh | Q1 2026 | |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $56.6M | 1.2M | ▲+12% Added · +124K sh | Q1 2026 | |
| 24 | BANK OF AMERICA CORP /DE/ | $50.0M | 1.0M | ▼−10% Reduced · −120K sh | Q1 2026 | |
| 25 | Greenvale Capital LLP | $49.9M | 1.0M | ▲New +1.0M 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 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Conversion (C) | 12K | $0 |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Option exercise (M) | 12K | $0 |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Option exercise (M) | 12K | $0 |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Sell (S) | 1K | $98K |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Sell (S) | 1K | $87K |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Sell (S) | 2K | $182K |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Sell (S) | 400 | $34K |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Sell (S) | 2K | $150K |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Sell (S) | 1K | $99K |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Sell (S) | 5K | $389K |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Sell (S) | 16K | $1.3M |
| Jul 15, 2026 | Choudary Kiran Kumar | Chief Financial Officer | Conversion (C) | 12K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 162 funds | $88.4B |
| MICROSOFT CORPMSFT | 162 funds | $62.5B |
| AMAZON.COM INCAMZN | 161 funds | $51.9B |
| BROADCOM INCAVGO | 161 funds | $31.3B |
| ALPHABET INC-CL AGOOGL | 159 funds | $42.4B |
| META PLATFORMS INC-CLASS AMETA | 159 funds | $29.9B |
| MASTERCARD INC - AMA | 156 funds | $11.8B |
| APPLE INCAAPL | 155 funds | $71.4B |
| TESLA INCTSLA | 155 funds | $19.8B |
| ELI LILLY & COLLY | 155 funds | $15.2B |
| VISA INC-CLASS A SHARESV | 154 funds | $13.3B |
| ADVANCED MICRO DEVICESAMD | 154 funds | $7.9B |
Ranked by how many of RBRK'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 RBRK. 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.