Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Occidental Petroleum Corporation, 3 years.
Occidental Petroleum Corporation
Director
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| May 4, 2026 | Occidental Petroleum Corporation | Grant or award | +4,149 | — | — |
| May 4, 2026 | Occidental Petroleum Corporation | Shares withheld for tax | −913 | $60.27 | $55,027 |
| Dec 16, 2025 | Occidental Petroleum Corporation | Open-market purchase | +5,000 | $38.98 | $194,900 |
| May 5, 2025 | Occidental Petroleum Corporation | Grant or award | +6,442 | — | — |
| May 5, 2025 | Occidental Petroleum Corporation | Shares withheld for tax | −1,418 | $38.81 | $55,033 |
| Mar 31, 2025 | Occidental Petroleum Corporation | In-the-money exercise | +25,900 | $21.30 | $551,670 |
| May 3, 2024 | Occidental Petroleum Corporation | Grant or award | +3,883 | — | — |
| May 3, 2024 | Occidental Petroleum Corporation | Shares withheld for tax | −855 | $64.39 | $55,053 |
| May 8, 2023 | Occidental Petroleum Corporation | Grant or award | +3,817 | — | — |
| May 8, 2023 | Occidental Petroleum Corporation | Shares withheld for tax | −840 | $58.96 | $49,526 |
Questions about William R. Klesse
What boards is William R. Klesse on?
William R. Klesse sits on the board of Occidental Petroleum Corporation.
How long has William R. Klesse served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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