Insider · CIK 0001614246
Dianne B. Ralston
Files at SLB (SCHLUMBERGER LIMITED/NV). First filing Sep 12, 2025, latest Jan 27, 2026.
In brief
Dianne B. Ralston files SEC Form 4 as officer at SLB (SCHLUMBERGER LIMITED/NV). Since Sep 12, 2025, Dianne B. Ralston has reported 0 open-market buys worth $0 and 2 open-market sells worth $2.4M, the latest filed on Jan 27, 2026.
A track record needs three past buys with six months of prices behind them; Dianne B. Ralston has 0, so none is measured yet.
The newest scored trade: sold $922k of SLB on Jan 26, 2026, filed Jan 27, 2026, scored 54 (moderate). In the last 12 months: 0 buys worth $0 and 1 sell worth $922k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
SLB: SCHLUMBERGER LIMITED/NV
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 |
|---|---|---|---|---|---|
| 54Moderate | SCHLUMBERGER LIMITED/NV | $922k 18,617 shares | -8% | +59% from low0% from high | |
| 45Moderate | SLBsell SCHLUMBERGER LIMITED/NV | $1.4M 39,727 shares | -16% | +13% from low-20% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jan 26, 2026 | SLB SLB LIMITED/NV | 18,617 0.00% of outstanding | $922k | Jan 26, 2026 | none |
| Sep 12, 2025 | SLB SCHLUMBERGER LIMITED/NV | 39,727 0.00% of outstanding | $1.4M | Sep 12, 2025 | none |
| Jan 21, 2025 | SLB SCHLUMBERGER LIMITED/NV | 43,161 0.00% of outstanding | $1.9M | Jan 21, 2025 | none |
Transactions
Every row this insider has filed, 13 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Mar 13, 2026 | SLB SCHLUMBERGER LIMITED/NV | AGrant or award Common Stock, $0.01 Par Value Per Share | +3,203 | $0.00 | $0 | 227,300 | Mar 17, 2026 |
| Mar 13, 2026 | SLB SCHLUMBERGER LIMITED/NV | FTax withholding Common Stock, $0.01 Par Value Per Share | -1,261 | $44.22 | $56k | 226,039 | Mar 17, 2026 |
| Jan 23, 2026 | SLB SCHLUMBERGER LIMITED/NV | AGrant or award Common Stock, $0.01 Par Value Per Share | +47,437 | $0.00 | $0 | 260,381 | Jan 27, 2026 |
| Jan 23, 2026 | SLB SCHLUMBERGER LIMITED/NV | FTax withholding Common Stock, $0.01 Par Value Per Share | -17,667 | $50.25 | $888k | 242,714 | Jan 27, 2026 |
| Jan 26, 2026 | SLB SCHLUMBERGER LIMITED/NV | SOpen-market sale Common Stock, $0.01 Par Value Per Share | -18,617 | $49.50 | $922k | 224,097 | Jan 27, 2026 |
| Jan 21, 2026 | SLB SCHLUMBERGER LIMITED/NV | AGrant or award RSU (Restricted Stock Unit)derivative | +23,987 | - | - | 23,987 | Jan 23, 2026 |
| Jan 18, 2026 | SLB SCHLUMBERGER LIMITED/NV | MOption exercise Common Stock, $0.01 Par Value Per Share | +14,427 | $0.00 | $0 | 216,628 | Jan 20, 2026 |
| Jan 18, 2026 | SLB SCHLUMBERGER LIMITED/NV | FTax withholding Common Stock, $0.01 Par Value Per Share | -3,684 | $46.65 | $172k | 212,944 | Jan 20, 2026 |
| Jan 18, 2026 | SLB SCHLUMBERGER LIMITED/NV | MOption exercise RSU (Restricted Stock Unit)derivative | -14,427 | $0.00 | $0 | 0 | Jan 20, 2026 |
| Sep 12, 2025 | SLB SCHLUMBERGER LIMITED/NV | SOpen-market sale Common Stock, $0.01 Par Value Per Share | -39,727 | $36.08 | $1.4M | 202,201 | Sep 12, 2025 |
| Dec 1, 2023 | SLB SCHLUMBERGER LIMITED/NV | MOption exercise Common Stock, $0.01 Par Value Per Share | +34,604 | $0.00 | $0 | 128,338 | Dec 5, 2023 |
| Dec 1, 2023 | SLB SCHLUMBERGER LIMITED/NV | FTax withholding Common Stock, $0.01 Par Value Per Share | -13,617 | $52.41 | $714k | 114,721 | Dec 5, 2023 |
| Dec 1, 2023 | SLB SCHLUMBERGER LIMITED/NV | MOption exercise RSU (Restricted Stock Unit)derivative | -34,604 | $0.00 | $0 | 0 | Dec 5, 2023 |
Questions about Dianne B. Ralston
Answered from the filings on this page, as of the latest one.
Is Dianne B. Ralston buying or selling?
In the last 12 months Dianne B. Ralston reported 0 open-market buys worth $0 and 1 open-market sell worth $922k on SEC Form 4; the latest was sold $922k of SLB on Jan 26, 2026. Grants, option exercises and tax withholding are not counted.
How did Dianne B. Ralston's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Dianne B. Ralston has 0.
Where does Dianne B. Ralston file Form 4?
Dianne B. Ralston has filed Form 4 at SLB (SCHLUMBERGER LIMITED/NV) as Chief Legal Officer & Sec. 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.