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 USLM 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/USLM"
Use Arkolith to show who owns USLM, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $112.7M | 863K | ▼−15% Reduced · −151K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $111.0M | 927K | ▲+6.8% Added · +59K sh | Q4 2025 | |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $46.3M | 354K | ▲+3.6% Added · +12K sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $43.2M | 331K | ▲New +331K sh | Q1 2026 | |
| 5 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $37.4M | 286K | ▲+4.9% Added · +13K sh | Q1 2026 | |
| 6 | STATE STREET CORP | $30.8M | 236K | ▼−0.8% Reduced · −2K sh | Q1 2026 | |
| 7 | ArrowMark Colorado Holdings LLC | $26.1M | 200K | ▲+3.7% Added · +7K sh | Q1 2026 | |
| 8 | Copeland Capital Management, LLC | $18.8M | 144K | ▼−23% Reduced · −42K sh | Q1 2026 | |
| 9 | FMR LLC | $9.7M | 74K | ▲+16% Added · +10K sh | Q1 2026 | |
| 10 | VANGUARD FIDUCIARY TRUST CO | $9.5M | 73K | ▲New +73K sh | Q1 2026 | |
| 11 | Advisors Asset Management, Inc. | $9.1M | 70K | ▲+2.5% Added · +2K sh | Q1 2026 | |
| 12 | DIAMOND HILL CAPITAL MANAGEMENT INC | $8.5M | 65K | ▼−8.8% Reduced · −6K sh | Q1 2026 | |
| 13 | SEGALL BRYANT & HAMILL, LLC | $7.8M | 60K | ▼−4.9% Reduced · −3K sh | Q1 2026 | |
| 14 | Grantham, Mayo, Van Otterloo & Co. LLC | $7.3M | 56K | ▲New +56K sh | Q1 2026 | |
| 15 | Aptus Capital Advisors, LLC | $6.3M | 48K | ▲+1.0% Added · +479 sh | Q1 2026 | |
| 16 | Moran Wealth Management, LLC | $4.7M | 36K | ▲+313% Added · +27K sh | Q1 2026 | |
| 17 | Vest Financial, LLC | $4.2M | 32K | ▲+130% Added · +18K sh | Q1 2026 | |
| 18 | EXCHANGE TRADED CONCEPTS, LLC | $3.2M | 24K | ▲120× Added · +24K sh | Q1 2026 | |
| 19 | Man Group plc | $3.1M | 23K | ▲+123% Added · +13K sh | Q1 2026 | |
| 20 | TUDOR INVESTMENT CORP ET AL | $2.7M | 21K | ▼−40% Reduced · −14K sh | Q1 2026 | |
| 21 | Vident Advisory, LLC | $2.2M | 17K | ▼−28% Reduced · −6K sh | Q1 2026 | |
| 22 | Y-Intercept (Hong Kong) Ltd | $1.8M | 14K | ▲+32% Added · +3K sh | Q1 2026 | |
| 23 | LOS ANGELES CAPITAL MANAGEMENT LLC | $1.6M | 12K | ▲+285% Added · +9K sh | Q1 2026 | |
| 24 | Walleye Capital LLC | $1.3M | 10K | ▲New +10K sh | Q1 2026 | |
| 25 | CITADEL ADVISORS LLC | $1.1M | 9K | ▼−78% Reduced · −31K 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 |
|---|---|---|---|---|---|
| Mar 17, 2026 | DOUMET ANTOINE M | Director | Option exercise (M) | 12K | $129K |
| Mar 17, 2026 | DOUMET ANTOINE M | Director | Option exercise (M) | 12K | $129K |
| Mar 3, 2026 | Duhe Sandra C | Director | Sell (S) | 1K | $154K |
| Feb 3, 2026 | Stone Timothy Wade | Vice President | Tax withholding (F) | 136 | $16K |
| Feb 3, 2026 | Gagnon John J | Vice President | Tax withholding (F) | 123 | $15K |
| Feb 3, 2026 | O'Neill Nathan | Vice President | Tax withholding (F) | 166 | $20K |
| Feb 3, 2026 | Wiedemer Michael L | Vice President | Tax withholding (F) | 165 | $19K |
| Feb 2, 2026 | Gagnon John J | Vice President | Tax withholding (F) | 75 | $9K |
| Feb 2, 2026 | O'Neill Nathan | Vice President | Grant (A) | 426 | $53K |
| Feb 2, 2026 | Stone Timothy Wade | Vice President | Tax withholding (F) | 100 | $12K |
| Feb 2, 2026 | Stone Timothy Wade | Vice President | Grant (A) | 336 | $42K |
| Feb 2, 2026 | O'Neill Nathan | Vice President | Tax withholding (F) | 105 | $13K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 68 funds | $29.3B |
| VISA INC-CLASS A SHARESV | 68 funds | $6.9B |
| AMAZON.COM INCAMZN | 65 funds | $22.3B |
| META PLATFORMS INC-CLASS AMETA | 65 funds | $14.7B |
| TJX COMPANIES INCTJX | 65 funds | $3.1B |
| NVIDIA CORPNVDA | 64 funds | $39.0B |
| ALPHABET INC-CL AGOOGL | 64 funds | $19.1B |
| COSTCO WHOLESALE CORPCOST | 64 funds | $5.6B |
| CHEVRON CORPCVX | 64 funds | $3.9B |
| APPLE INCAAPL | 63 funds | $34.3B |
| BROADCOM INCAVGO | 63 funds | $15.4B |
| ALPHABET INC-CL CGOOG | 63 funds | $12.6B |
Ranked by how many of USLM'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 USLM. 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.