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 RUSHB 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/RUSHB"
Use Arkolith to show who owns RUSHB, 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 | $51.5M | 915K | ▲+1.2% Added · +11K sh | Q4 2025 | |
| 2 | BlackRock, Inc. | $37.7M | 585K | ▼−2.2% Reduced · −13K sh | Q1 2026 | |
| 3 | PRIVATE MANAGEMENT GROUP INC | $20.9M | 325K | ▼−0.8% Reduced · −3K sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $20.5M | 319K | ▲New +319K sh | Q1 2026 | |
| 5 | STATE STREET CORP | $13.7M | 213K | ▼−2.9% Reduced · −6K sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $8.8M | 136K | ▲+13% Added · +15K sh | Q1 2026 | |
| 7 | VANGUARD FIDUCIARY TRUST CO | $5.7M | 89K | ▲New +89K sh | Q1 2026 | |
| 8 | LOS ANGELES CAPITAL MANAGEMENT LLC | $1.8M | 29K | ▲29× Added · +28K sh | Q1 2026 | |
| 9 | Trexquant Investment LP | $1.5M | 24K | ▲+1.2% Added · +271 sh | Q1 2026 | |
| 10 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $1.2M | 19K | —Held | Q1 2026 | |
| 11 | Universal- Beteiligungs- und Servicegesellschaft mbH | $346K | 5K | —Held | Q1 2026 | |
| 12 | MetLife Investment Management, LLC | $345K | 5K | —Held | Q1 2026 | |
| 13 | Engineers Gate Manager LP | $342K | 5K | ▲New +5K sh | Q1 2026 | |
| 14 | Sanctuary Advisors, LLC | $276K | 4K | ▲New +4K sh | Q1 2026 | |
| 15 | OCCUDO QUANTITATIVE STRATEGIES LP | $204K | 3K | ▲New +3K sh | Q1 2026 | |
| 16 | Zurcher Kantonalbank (Zurich Cantonalbank) | $177K | 3K | ▲New +3K sh | Q1 2026 | |
| 17 | FMR LLC | $169K | 3K | ▲+52% Added · +901 sh | Q1 2026 | |
| 18 | Police & Firemen's Retirement System of New Jersey | $168K | 3K | —Held | Q1 2026 | |
| 19 | WHITTIER TRUST CO | $165K | 2K | —Held | Q1 2026 | |
| 20 | CWM, LLC | $51K | 792 | ▲+7.9% Added · +58 sh | Q1 2026 | |
| 21 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $50K | 783 | ▲+74% Added · +332 sh | Q1 2026 | |
| 22 | Ameritas Investment Partners, Inc. | $46K | 716 | ▼−15% Reduced · −130 sh | Q1 2026 | |
| 23 | QUADRANT CAPITAL GROUP LLC | $20K | 314 | ▼−7.9% Reduced · −27 sh | Q1 2026 | |
| 24 | GAMMA Investing LLC | $19K | 293 | ▲+41% Added · +85 sh | Q1 2026 | |
| 25 | Sterling Capital Management LLC | $10K | 161 | ▼−38% Reduced · −97 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 |
|---|---|---|
| NVIDIA CORPNVDA | 34 funds | $30.8B |
| MICROSOFT CORPMSFT | 34 funds | $20.7B |
| ALPHABET INC-CL AGOOGL | 34 funds | $13.4B |
| ALPHABET INC-CL CGOOG | 34 funds | $10.2B |
| META PLATFORMS INC-CLASS AMETA | 34 funds | $9.2B |
| TESLA INCTSLA | 34 funds | $6.3B |
| ELI LILLY & COLLY | 34 funds | $5.8B |
| VISA INC-CLASS A SHARESV | 34 funds | $4.3B |
| WALMART INCWMT | 34 funds | $3.8B |
| COSTCO WHOLESALE CORPCOST | 34 funds | $3.7B |
| GENERAL ELECTRICGE | 34 funds | $2.3B |
| ORACLE CORPORCL | 34 funds | $2.2B |
Ranked by how many of RUSHB'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 RUSHB. 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.