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 REI 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/REI"
Use Arkolith to show who owns REI, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD PORTFOLIO MANAGEMENT LLC | $5.4M | 3.5M | ▲New +3.5M sh | Q1 2026 | |
| 2 | Connor, Clark & Lunn Investment Management Ltd. | $4.0M | 2.6M | ▲+83% Added · +1.2M sh | Q1 2026 | |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $3.0M | 2.0M | ▲+13% Added · +225K sh | Q1 2026 | |
| 4 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $2.8M | 1.9M | ▲+5.9% Added · +104K sh | Q1 2026 | |
| 5 | CastleKnight Management LP | $2.1M | 1.4M | ▲New +1.4M sh | Q1 2026 | |
| 6 | PEAK6 LLC | $1.8M | 1.1M | ▼−39% Reduced · −750K sh | Q1 2026 | |
| 7 | VANGUARD FIDUCIARY TRUST CO | $1.5M | 991K | ▲New +991K sh | Q1 2026 | |
| 8 | WINTON GROUP Ltd | $1.5M | 949K | ▼−2.1% Reduced · −21K sh | Q1 2026 | |
| 9 | STATE STREET CORP | $1.2M | 806K | ▲+11% Added · +83K sh | Q1 2026 | |
| 10 | CITADEL ADVISORS LLC | $1.1M | 738K | ▲16× Added · +693K sh | Q1 2026 | |
| 11 | Quadrature Capital Ltd | $653K | 427K | ▲New +427K sh | Q1 2026 | |
| 12 | SPROTT INC. | $436K | 285K | —Held | Q1 2026 | |
| 13 | Point72 Asset Management, L.P. | $379K | 248K | ▲+295% Added · +185K sh | Q1 2026 | |
| 14 | RITHOLTZ WEALTH MANAGEMENT | $248K | 162K | ▲New +162K sh | Q1 2026 | |
| 15 | MANGROVE PARTNERS IM, LLC | $223K | 146K | ▼−12% Reduced · −21K sh | Q1 2026 | |
| 16 | Metis Global Partners, LLC | $191K | 125K | ▼−41% Reduced · −86K sh | Q1 2026 | |
| 17 | Schonfeld Strategic Advisors LLC | $188K | 123K | ▲New +123K sh | Q1 2026 | |
| 18 | Vanguard Personalized Indexing Management, LLC | $182K | 119K | ▼−0.2% Reduced · −294 sh | Q1 2026 | |
| 19 | BOOTHBAY FUND MANAGEMENT, LLC | $170K | 111K | ▲New +111K sh | Q1 2026 | |
| 20 | Linscomb Wealth, Inc. | $141K | 92K | —Held | Q1 2026 | |
| 21 | FMR LLC | $129K | 84K | ▼−0.7% Reduced · −593 sh | Q1 2026 | |
| 22 | Centiva Capital, LP | $76K | 50K | ▲New +50K sh | Q1 2026 | |
| 23 | Vident Advisory, LLC | $68K | 44K | ▼−1.8% Reduced · −812 sh | Q1 2026 | |
| 24 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $57K | 37K | ▲New +37K sh | Q1 2026 | |
| 25 | Cresset Asset Management, LLC | $48K | 32K | ▲New +32K 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 15, 2026 | Johl Sundip Singh | EVP, Chief Financial Officer | Buy (P) | 231K | $279K |
| Jun 15, 2026 | McKinney Paul D. | CEO and Chairman of the Board, Director | Buy (P) | 50K | $60K |
| Mar 5, 2026 | Johl Sundip Singh | EVP, Chief Financial Officer | Grant (A) | 317K | $0 |
| Feb 17, 2026 | HARRIS RICHARD E | Director | Grant (A) | 119K | $0 |
| Feb 17, 2026 | Habachy David | Director | Grant (A) | 119K | $0 |
| Feb 17, 2026 | MITCHELL THOMAS L | Director | Grant (A) | 119K | $0 |
| Feb 17, 2026 | CRUM JOHN A | Director | Grant (A) | 119K | $0 |
| Feb 17, 2026 | Petrelli Anthony Benedict | Director | Grant (A) | 119K | $0 |
| Feb 17, 2026 | Tharp Carla Todd | Director | Grant (A) | 119K | $0 |
| Feb 17, 2026 | FEINER PHILLIP B | Senior VP, General Counsel | Grant (A) | 238K | $0 |
| Feb 17, 2026 | Dyes Alexander | EVP Chief Operations Officer | Tax withholding (F) | 48K | $60K |
| Feb 17, 2026 | Dyes Alexander | EVP Chief Operations Officer | Grant (A) | 317K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 36 funds | $14.6B |
| MICROSOFT CORPMSFT | 36 funds | $8.3B |
| AMAZON.COM INCAMZN | 36 funds | $8.3B |
| BROADCOM INCAVGO | 36 funds | $5.8B |
| VISA INC-CLASS A SHARESV | 36 funds | $2.2B |
| ADVANCED MICRO DEVICESAMD | 36 funds | $1.5B |
| ORACLE CORPORCL | 36 funds | $1.3B |
| NETFLIX INCNFLX | 36 funds | $1.3B |
| SALESFORCE INCCRM | 36 funds | $950.6M |
| APPLE INCAAPL | 35 funds | $10.5B |
| META PLATFORMS INC-CLASS AMETA | 35 funds | $5.1B |
| ALPHABET INC-CL CGOOG | 35 funds | $3.7B |
Ranked by how many of REI'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 REI. 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.