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 RTB 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/RTB"
Use Arkolith to show who owns RTB, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | NewEdge Advisors, LLC | $101K | 20K | ▼−97% Reduced · −682K sh | Q1 2026 | |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | $86K | 17K | ▼−92% Reduced · −209K sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $37K | 7K | ▲New +7K sh | Q1 2026 | |
| 4 | VANGUARD FIDUCIARY TRUST CO | $25K | 5K | ▲New +5K sh | Q1 2026 | |
| 5 | ROYAL BANK OF CANADA | $5K | 987 | ▲New +987 sh | Q1 2026 | |
| 6 | Tower Research Capital LLC (TRC) | $5K | 990 | ▲New +990 sh | Q1 2026 | |
| 7 | OSAIC HOLDINGS, INC. | $3K | 501 | ▼−73% Reduced · −1K sh | Q1 2026 | |
| 8 | BlackRock, Inc. | $2K | 372 | ▼−97% Reduced · −13K sh | Q1 2026 | |
| 9 | UBS Group AG | $378 | 75 | ▼−100% Reduced · −31K sh | Q1 2026 | |
| 10 | WOLFF WIESE MAGANA LLC | $121 | 8 | ▼−60% Reduced · −12 sh | Q2 2026 | |
| 11 | Vanguard Global Advisers, LLC | $101 | 20 | ▲New +20 sh | Q1 2026 | |
| 12 | MORGAN STANLEY | $55 | 11 | ▼−100% Reduced · −2K sh | Q1 2026 | |
| 13 | BNP PARIBAS FINANCIAL MARKETS | $20 | 4 | ▼−96% Reduced · −96 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 4, 2026 | Madhavji Alykhan | Chief Financial Officer, Director, 10% Owner | Option exercise (M) | 146K | $276K |
| Jun 4, 2026 | Madhavji Alykhan | Chief Financial Officer, Director, 10% Owner | Option exercise (M) | 146K | $276K |
| May 21, 2026 | Fletcher Steven C. | Director | Other (J) | 690 | $0 |
| Aug 12, 2025 | Fletcher Steven C. | Director | Other (J) | 73K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 2 funds | $1.0B |
| APPLE INCAAPL | 2 funds | $973.5M |
| MICROSOFT CORPMSFT | 2 funds | $657.8M |
| ISHARES CORE S&P 500 ETFIVV | 2 funds | $596.6M |
| VANGUARD S&P 500 ETFVOO | 2 funds | $579.2M |
| AMAZON.COM INCAMZN | 2 funds | $519.4M |
| ALPHABET INC-CL AGOOGL | 2 funds | $460.4M |
| JPMORGAN CHASE & COJPM | 2 funds | $428.5M |
| WALMART INCWMT | 2 funds | $361.9M |
| SS SPDR S&P 500 ETF TRUST-USSPY | 2 funds | $358.2M |
| BROADCOM INCAVGO | 2 funds | $315.5M |
| VANGUARD TOTAL STOCK MKT ETFVTI | 2 funds | $308.8M |
Ranked by how many of RTB'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 RTB. 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.