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 VLO 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/VLO"
Use Arkolith to show who owns VLO, 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. | $6.4B | 26.0M | ▼−0.4% Reduced · −97K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $6.1B | 37.6M | ▼−1.1% Reduced · −418K sh | Q4 2025 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $4.8B | 19.6M | ▲New +19.6M sh | Q1 2026 | |
| 4 | STATE STREET CORP | $4.8B | 19.6M | ▲+7.9% Added · +1.4M sh | Q1 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $3.7B | 14.9M | ▲New +14.9M sh | Q1 2026 | |
| 6 | FMR LLC | $2.1B | 8.4M | ▲+24% Added · +1.6M sh | Q1 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $2.0B | 8.3M | ▲+2.7% Added · +216K sh | Q1 2026 | |
| 8 | MORGAN STANLEY | $1.8B | 7.3M | ▼−2.4% Reduced · −181K sh | Q1 2026 | |
| 9 | AMERIPRISE FINANCIAL INC | $1.6B | 6.5M | ▲+16% Added · +917K sh | Q1 2026 | |
| 10 | FRANKLIN RESOURCES INC | $1.6B | 6.4M | ▲+13% Added · +744K sh | Q1 2026 | |
| 11 | BANK OF AMERICA CORP /DE/ | $1.2B | 5.0M | ▲+11% Added · +517K sh | Q1 2026 | |
| 12 | NORGES BANK | $1.1B | 6.8M | ▲+11% Added · +673K sh | Q4 2025 | |
| 13 | BARCLAYS PLC | $879.9M | 3.6M | ▼−4.7% Reduced · −176K sh | Q1 2026 | |
| 14 | NORTHERN TRUST CORP | $800.1M | 3.2M | ▼−1.4% Reduced · −47K sh | Q1 2026 | |
| 15 | JPMORGAN CHASE & CO | $743.1M | 3.0M | ▲+93% Added · +1.4M sh | Q1 2026 | |
| 16 | Bank of New York Mellon Corp | $733.7M | 3.0M | ▲+9.4% Added · +255K sh | Q1 2026 | |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $727.4M | 2.9M | ▼−75% Reduced · −9.0M sh | Q1 2026 | |
| 18 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $702.3M | 2.8M | ▲+18% Added · +442K sh | Q1 2026 | |
| 19 | Nuveen, LLC | $673.2M | 2.7M | ▲+21% Added · +467K sh | Q1 2026 | |
| 20 | GOLDMAN SACHS GROUP INC | $661.6M | 2.7M | ▲+11% Added · +270K sh | Q1 2026 | |
| 21 | Amundi | $638.7M | 2.6M | ▲+45% Added · +806K sh | Q1 2026 | |
| 22 | DIMENSIONAL FUND ADVISORS LP | $615.2M | 2.5M | ▼−3.2% Reduced · −82K sh | Q1 2026 | |
| 23 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $504.1M | 2.0M | ▲+7.1% Added · +133K sh | Q1 2026 | |
| 24 | UBS Group AG | $435.0M | 1.8M | ▲+14% Added · +219K sh | Q1 2026 | |
| 25 | Legal & General Group Plc | $433.8M | 1.8M | ▼−1.7% Reduced · −30K 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 12, 2026 | Fisher Eric A | SVP | Sell (S) | 200 | $48K |
| Mar 12, 2026 | Fisher Eric A | SVP | Sell (S) | 200 | $48K |
| Mar 11, 2026 | Fisher Eric A | SVP | Sell (S) | 8K | $1.9M |
| Feb 26, 2026 | Bhullar Harminder S. | SVP & CFO | Tax withholding (F) | 480 | $97K |
| Feb 26, 2026 | Bhullar Harminder S. | SVP & CFO | Tax withholding (F) | 529 | $107K |
| Feb 25, 2026 | Riggs R. Lane | CEO & President, Director | Tax withholding (F) | 15K | $2.9M |
| Feb 25, 2026 | Riggs R. Lane | CEO & President, Director | Grant (A) | 38K | $0 |
| Feb 25, 2026 | Fisher Eric A | SVP | Tax withholding (F) | 2K | $467K |
| Feb 25, 2026 | Walsh Richard Joe | EVP & GC | Tax withholding (F) | 3K | $686K |
| Feb 25, 2026 | Walsh Richard Joe | EVP & GC | Grant (A) | 9K | $0 |
| Feb 25, 2026 | Simmons Gary K. | EVP & COO | Grant (A) | 13K | $0 |
| Feb 25, 2026 | Simmons Gary K. | EVP & COO | Tax withholding (F) | 5K | $1.0M |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 482 funds | $128.7B |
| BROADCOM INCAVGO | 480 funds | $63.6B |
| NVIDIA CORPNVDA | 478 funds | $168.5B |
| APPLE INCAAPL | 478 funds | $153.0B |
| AMAZON.COM INCAMZN | 478 funds | $91.0B |
| META PLATFORMS INC-CLASS AMETA | 478 funds | $54.1B |
| JPMORGAN CHASE & COJPM | 477 funds | $44.1B |
| ELI LILLY & COLLY | 476 funds | $34.1B |
| ALPHABET INC-CL AGOOGL | 474 funds | $87.0B |
| MASTERCARD INC - AMA | 474 funds | $23.1B |
| VISA INC-CLASS A SHARESV | 472 funds | $28.4B |
| COSTCO WHOLESALE CORPCOST | 470 funds | $22.7B |
Ranked by how many of VLO'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 VLO. 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.