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 USIO 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/USIO"
Use Arkolith to show who owns USIO, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | WHITTIER TRUST CO | $3.2M | 2.7M | ▲New +2.7M sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $1.4M | 1.0M | ▲+1.5% Added · +15K sh | Q4 2025 | |
| 3 | CITADEL ADVISORS LLC | $205K | 180K | ▼−15% Reduced · −32K sh | Q1 2026 | |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | $136K | 119K | ▼−35% Reduced · −65K sh | Q1 2026 | |
| 5 | VANGUARD FIDUCIARY TRUST CO | $119K | 104K | ▲New +104K sh | Q1 2026 | |
| 6 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $115K | 101K | —Held | Q1 2026 | |
| 7 | BlackRock, Inc. | $105K | 92K | ▼−5.2% Reduced · −5K sh | Q1 2026 | |
| 8 | STATE STREET CORP | $88K | 77K | —Held | Q1 2026 | |
| 9 | SBI Securities Co., Ltd. | $200 | 175 | —Held | 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 11, 2026 | Uffner Jerry | SVP Card Issuing SLS & Bus Dev | Grant (A) | 5K | $9K |
| Jun 11, 2026 | Beyer del la Garza Ernesto R | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | Beyer del la Garza Ernesto R | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | Miller Elizabeth Michelle | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | Miller Elizabeth Michelle | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | Miller Elizabeth Michelle | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | Rollins Brad | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | Rollins Brad | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | Rollins Brad | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | Beyer del la Garza Ernesto R | Director | Grant (A) | 8K | $14K |
| Jun 11, 2026 | White Michael Joseph | SVP, Chief Accounting Officer | Grant (A) | 50K | $86K |
| Jun 11, 2026 | White Michael Joseph | SVP, Chief Accounting Officer | Grant (A) | 5K | $9K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 6 funds | $5.2B |
| APPLE INCAAPL | 6 funds | $3.0B |
| AMAZON.COM INCAMZN | 6 funds | $2.5B |
| MICROSOFT CORPMSFT | 6 funds | $2.0B |
| BROADCOM INCAVGO | 6 funds | $1.7B |
| ALPHABET INC-CL CGOOG | 6 funds | $1.5B |
| META PLATFORMS INC-CLASS AMETA | 6 funds | $1.5B |
| ALPHABET INC-CL AGOOGL | 6 funds | $1.4B |
| JPMORGAN CHASE & COJPM | 6 funds | $1.2B |
| TESLA INCTSLA | 6 funds | $1.2B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 6 funds | $886.4M |
| COSTCO WHOLESALE CORPCOST | 6 funds | $789.6M |
Ranked by how many of USIO'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 USIO. 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.