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 RUM 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/RUM"
Use Arkolith to show who owns RUM, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $55.5M | 8.8M | ▼−1.6% Reduced · −148K sh | Q4 2025 | |
| 2 | BlackRock, Inc. | $40.2M | 7.9M | ▼−1.2% Reduced · −95K sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $20.5M | 4.0M | ▲New +4.0M sh | Q1 2026 | |
| 4 | STATE STREET CORP | $17.0M | 3.3M | ▲+8.1% Added · +249K sh | Q1 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $14.3M | 2.8M | ▼−0.6% Reduced · −17K sh | Q1 2026 | |
| 6 | VANGUARD FIDUCIARY TRUST CO | $3.7M | 726K | ▲New +726K sh | Q1 2026 | |
| 7 | Sigma Planning Corp | $830K | 163K | ▲+2.1% Added · +3K sh | Q1 2026 | |
| 8 | Stratos Wealth Partners, LTD. | $378K | 74K | ▲+16% Added · +10K sh | Q1 2026 | |
| 9 | FIRST MANHATTAN CO. LLC. | $356K | 70K | —Held | Q1 2026 | |
| 10 | Zurcher Kantonalbank (Zurich Cantonalbank) | $290K | 57K | —Held | Q1 2026 | |
| 11 | Hudson Bay Capital Management LP | $266K | 52K | ▲New +52K sh | Q1 2026 | |
| 12 | MetLife Investment Management, LLC | $263K | 51K | ▼−8.1% Reduced · −5K sh | Q1 2026 | |
| 13 | MML INVESTORS SERVICES, LLC | $241K | 47K | ▼−0.4% Reduced · −198 sh | Q1 2026 | |
| 14 | Schonfeld Strategic Advisors LLC | $233K | 46K | ▼−25% Reduced · −15K sh | Q1 2026 | |
| 15 | Snowden Capital Advisors LLC | $220K | 43K | —Held | Q1 2026 | |
| 16 | Police & Firemen's Retirement System of New Jersey | $149K | 29K | —Held | Q1 2026 | |
| 17 | DRW Securities, LLC | $124K | 24K | ▲New +24K sh | Q1 2026 | |
| 18 | INTECH INVESTMENT MANAGEMENT LLC | $122K | 24K | ▼−26% Reduced · −8K sh | Q1 2026 | |
| 19 | Magnetar Financial LLC | $100K | 20K | ▲New +20K sh | Q1 2026 | |
| 20 | Private Advisor Group, LLC | $99K | 19K | ▼−19% Reduced · −5K sh | Q1 2026 | |
| 21 | VestGen Advisors, LLC | $99K | 12K | ▲+24% Added · +2K sh | Q1 2026 | |
| 22 | EP Wealth Advisors, LLC | $92K | 18K | ▲New +18K sh | Q1 2026 | |
| 23 | Kestra Advisory Services, LLC | $81K | 16K | ▲+4.0% Added · +604 sh | Q1 2026 | |
| 24 | Merit Financial Group, LLC | $77K | 15K | ▲+7.5% Added · +1K sh | Q1 2026 | |
| 25 | FMR LLC | $69K | 14K | ▼−41% Reduced · −10K 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 |
|---|---|---|---|---|---|
| Jun 12, 2026 | Evershed Philip | Director | Grant (A) | 45K | $0 |
| Jun 12, 2026 | Naumoff Jerry | Director | Tax withholding (F) | 7K | $51K |
| Jun 12, 2026 | Naumoff Jerry | Director | Grant (A) | 34K | $0 |
| Jun 12, 2026 | Milnes Ryan | Director | Tax withholding (F) | 15K | $113K |
| Jun 12, 2026 | Milnes Ryan | Director | Grant (A) | 34K | $0 |
| Jun 12, 2026 | Biber Katie | Director | Tax withholding (F) | 14K | $105K |
| Jun 12, 2026 | Biber Katie | Director | Grant (A) | 34K | $0 |
| Jun 12, 2026 | Evershed Philip | Director | Tax withholding (F) | 20K | $153K |
| Jun 12, 2026 | CAPPUCCIO PAUL T | Director | Grant (A) | 45K | $0 |
| Jun 12, 2026 | CAPPUCCIO PAUL T | Director | Tax withholding (F) | 17K | $127K |
| Mar 10, 2026 | Ramolo Claudio | Chief Content Officer | Grant (A) | 199K | $0 |
| Mar 10, 2026 | Pavlovski Christopher | Chief Executive Officer, Director, 10% Owner | Grant (A) | 242K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 58 funds | $19.0B |
| BROADCOM INCAVGO | 58 funds | $9.4B |
| META PLATFORMS INC-CLASS AMETA | 58 funds | $7.4B |
| TESLA INCTSLA | 58 funds | $5.1B |
| ELI LILLY & COLLY | 58 funds | $3.9B |
| NETFLIX INCNFLX | 58 funds | $2.9B |
| MICRON TECHNOLOGY INCMU | 58 funds | $2.5B |
| GE VERNOVA INCGEV | 58 funds | $1.6B |
| NVIDIA CORPNVDA | 57 funds | $24.1B |
| APPLE INCAAPL | 57 funds | $23.0B |
| AMAZON.COM INCAMZN | 57 funds | $13.6B |
| ALPHABET INC-CL AGOOGL | 57 funds | $11.0B |
Ranked by how many of RUM'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 RUM. 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.