TSO — Tesoro Corporation
Unknown Industry · Unknown Sector
Key Facts
| Status | Active |
| Sector | Unknown Sector |
| Industry | Unknown Industry |
| Joined | 2007-09-27 |
| Tenure | 9 yrs |
S&P 500 Timeline
2007-09-27Joined S&P 500
2017-08-01Removed from S&P 500
Industry Peers
—
Sector Peers
—
Institutional Holdings (13F)
1 institutions hold TSO, totaling 11K shares ($642) · As of 2026Q1
| Rank | Institution | Shares | Value |
|---|---|---|---|
| 1 | Kentucky Retirement Systems | 11K | $642 |
Data source: Wikipedia · CC BY-SA 4.0 · SEC EDGAR 13F · Updated 2026-07-10