Insider · CIK 0002074217
William D Lambert
Files at MTDR (Matador Resources Co). First filing Sep 15, 2025, latest Sep 15, 2025.
In brief
William D Lambert files SEC Form 4 as CFO at MTDR (Matador Resources Co). Since Sep 15, 2025, William D Lambert has reported 1 open-market buy worth $7,206 and 0 open-market sells worth $0, the latest filed on Sep 15, 2025.
A track record needs three past buys with six months of prices behind them; William D Lambert has 0, so none is measured yet.
The newest scored trade: bought $7,206 of MTDR on Sep 12, 2025, filed Sep 15, 2025, scored 47 (moderate).
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MTDR: Matador Resources Co
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 |
|---|---|---|---|---|---|
| 47Moderate | Matador Resources Co | $7,206 150 shares | +30% | +32% from low-24% from high |
Transactions
Every row this insider has filed, 1 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 12, 2025 | MTDR Matador Resources Co | POpen-market purchase Common Stockindirect: Represents shares held of record by the reporting person's Individual Retirement Account | +150 | $48.04 | $7,206 | 650 | Sep 15, 2025 |
Questions about William D Lambert
Answered from the filings on this page, as of the latest one.
Is William D Lambert buying or selling?
Not in the last 12 months. William D Lambert's latest open-market trade on SEC Form 4 was bought $7,206 of MTDR on Sep 12, 2025.
How did William D Lambert's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and William D Lambert has 0.
Where does William D Lambert file Form 4?
William D Lambert has filed Form 4 at MTDR (Matador Resources Co) as EVP and CFO. 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.