Insider · CIK 0001019718
William R Klesse
Files at OXY (OCCIDENTAL PETROLEUM CORP /DE/). First filing Dec 17, 2025, latest Dec 17, 2025.
In brief
William R Klesse files SEC Form 4 as director at OXY (OCCIDENTAL PETROLEUM CORP /DE/). Since Dec 17, 2025, William R Klesse has reported 1 open-market buy worth $195k and 0 open-market sells worth $0, the latest filed on Dec 17, 2025.
A track record needs three past buys with six months of prices behind them; William R Klesse has 0, so none is measured yet.
The newest scored trade: bought $195k of OXY on Dec 16, 2025, filed Dec 17, 2025, scored 41 (moderate). In the last 12 months: 1 buy worth $195k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
OXY: OCCIDENTAL PETROLEUM CORP /DE/
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 41Moderate | OXYbuy OCCIDENTAL PETROLEUM CORP /DE/ | $195k 5,000 shares | +2% | +10% from low-25% from high |
Transactions
Every row this insider has filed, 9 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| May 4, 2026 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | AGrant or award Common Stock | +4,149 | $0.00 | $0 | 223,062 | May 6, 2026 |
| May 4, 2026 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | FTax withholding Common Stock | -913 | $60.27 | $55k | 222,149 | May 6, 2026 |
| Dec 16, 2025 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | POpen-market purchase Common Stock | +5,000 | $38.98 | $195k | 218,913 | Dec 17, 2025 |
| May 5, 2025 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | AGrant or award Common Stock | +6,442 | $0.00 | $0 | 215,331 | May 7, 2025 |
| May 5, 2025 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | FTax withholding Common Stock | -1,418 | $38.81 | $55k | 213,913 | May 7, 2025 |
| Mar 31, 2025 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | XIn-the-money exercise Common Stock | +25,900 | $21.30 | $552k | 208,889 | Apr 2, 2025 |
| Mar 31, 2025 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | XIn-the-money exercise Warrants (Right to buy)derivative | -25,900 | $0.00 | $0 | 3,860 | Apr 2, 2025 |
| May 3, 2024 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | AGrant or award Common Stock | +3,883 | $0.00 | $0 | 183,844 | May 7, 2024 |
| May 3, 2024 | OXY OCCIDENTAL PETROLEUM CORP /DE/ | FTax withholding Common Stock | -855 | $64.39 | $55k | 182,989 | May 7, 2024 |
Questions about William R Klesse
Answered from the filings on this page, as of the latest one.
Is William R Klesse buying or selling?
In the last 12 months William R Klesse reported 1 open-market buy worth $195k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $195k of OXY on Dec 16, 2025. Grants, option exercises and tax withholding are not counted.
How did William R Klesse's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and William R Klesse has 0.
Where does William R Klesse file Form 4?
William R Klesse has filed Form 4 at OXY (OCCIDENTAL PETROLEUM CORP /DE/). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.