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/RBA/capital-change-brief"
Use Arkolith's capital_change_brief for RBA. 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. | $1.5B | 15.4M | ▲+2.7% Added · +410K sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $1.3B | 13.3M | ▲New +13.3M sh | Q1 2026 | |
| 3 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $1.1B | 11.2M | ▲+3.2% Added · +348K sh | Q1 2026 | |
| 4 | EdgePoint Investment Group Inc. | $845.3M | 8.8M | ▲+14% Added · +1.1M sh | Q1 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $806.3M | 8.4M | ▲New +8.4M sh | Q1 2026 | |
| 6 | FIL Ltd | $598.9M | 6.2M | ▼−28% Reduced · −2.4M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $598.6M | 6.2M | ▼−0.7% Reduced · −46K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $485.5M | 5.1M | ▲+1.4% Added · +70K sh | Q1 2026 | |
| 9 | ROYAL BANK OF CANADA | $483.4M | 5.0M | ▲+13% Added · +592K sh | Q1 2026 | |
| 10 | Vontobel Holding Ltd. | $423.5M | 4.4M | ▼−3.5% Reduced · −161K sh | Q1 2026 | |
| 11 | JANUS HENDERSON GROUP PLC | $418.9M | 4.4M | ▲+7.0% Added · +286K sh | Q1 2026 | |
| 12 | T. Rowe Price Investment Management, Inc. | Withheld | 3.9M | ▲+60% Added · +1.5M sh | Q1 2026 | |
| 13 | Fiera Capital Corp | $353.5M | 3.7M | ▼−11% Reduced · −466K sh | Q1 2026 | |
| 14 | FMR LLC | $290.7M | 3.0M | ▼−14% Reduced · −504K sh | Q1 2026 | |
| 15 | VANGUARD FIDUCIARY TRUST CO | $267.1M | 2.8M | ▲New +2.8M sh | Q1 2026 | |
| 16 | BANK OF MONTREAL /CAN/ | $242.3M | 2.5M | ▲+2.0% Added · +51K sh | Q1 2026 | |
| 17 | COOKE & BIELER LP | $239.8M | 2.5M | ▲+1.9% Added · +46K sh | Q1 2026 | |
| 18 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $216.6M | 2.3M | ▲+324% Added · +1.7M sh | Q1 2026 | |
| 19 | NORGES BANK | $231.8M | 2.3M | ▼−6.4% Reduced · −155K sh | Q4 2025 | |
| 20 | Boston Partners | $210.6M | 2.2M | ▼−15% Reduced · −403K sh | Q1 2026 | |
| 21 | LAZARD ASSET MANAGEMENT LLC | $210.1M | 2.2M | ▲New +2.2M sh | Q1 2026 | |
| 22 | CAISSE DE DEPOT ET PLACEMENT DU QUEBEC | $184.6M | 1.9M | ▲+31% Added · +452K sh | Q1 2026 | |
| 23 | RAYMOND JAMES FINANCIAL INC | $176.6M | 1.9M | ▼−16% Reduced · −362K sh | Q1 2026 | |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $154.7M | 1.6M | ▲+4.5% Added · +70K sh | Q1 2026 | |
| 25 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | $144.7M | 1.5M | ▼−37% Reduced · −900K 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 25, 2026 | Carlson Christopher | Chief Accounting Officer | Sell (S) | 150 | $17K |
| Jun 18, 2026 | Harford Chloe | Director | Grant (A) | 6 | $0 |
| Jun 18, 2026 | DeWitt Adam | Director | Grant (A) | 25 | $0 |
| Jun 18, 2026 | DeWitt Adam | Director | Grant (A) | 6 | $0 |
| Jun 18, 2026 | Sieger Michael D | Director | Grant (A) | 7 | $0 |
| Jun 18, 2026 | Sieger Michael D | Director | Grant (A) | 6 | $0 |
| Jun 18, 2026 | Morrison Gregory B | Director | Grant (A) | 6 | $0 |
| Jun 18, 2026 | Watt Darren Jeffrey | Chief Legal Officer | Grant (A) | 2 | $0 |
| Jun 18, 2026 | Watt Darren Jeffrey | Chief Legal Officer | Grant (A) | 3 | $0 |
| Jun 18, 2026 | Watt Darren Jeffrey | Chief Legal Officer | Grant (A) | 6 | $0 |
| Jun 18, 2026 | Carlson Christopher | Chief Accounting Officer | Grant (A) | 3 | $0 |
| Jun 18, 2026 | Carlson Christopher | Chief Accounting Officer | Grant (A) | 2 | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 188 funds | $75.5B |
| AMAZON.COM INCAMZN | 188 funds | $58.7B |
| NVIDIA CORPNVDA | 187 funds | $102.5B |
| BROADCOM INCAVGO | 185 funds | $38.4B |
| ELI LILLY & COLLY | 185 funds | $18.7B |
| META PLATFORMS INC-CLASS AMETA | 184 funds | $31.4B |
| ALPHABET INC-CL AGOOGL | 183 funds | $50.9B |
| MASTERCARD INC - AMA | 183 funds | $15.0B |
| JOHNSON & JOHNSONJNJ | 182 funds | $16.7B |
| VISA INC-CLASS A SHARESV | 182 funds | $16.6B |
| APPLE INCAAPL | 181 funds | $83.3B |
| JPMORGAN CHASE & COJPM | 181 funds | $24.5B |
Ranked by how many of RBA'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 RBA. 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.