Insider · CIK 0001632531
Stephen S Clark
Files at AMRZ (Amrize Ltd). First filing Aug 18, 2025, latest Aug 13, 2026.
In brief
Stephen S Clark files SEC Form 4 as officer at AMRZ (Amrize Ltd). Since Aug 18, 2025, Stephen S Clark has reported 3 open-market buys worth $508k and 0 open-market sells worth $0, the latest filed on Aug 13, 2026.
A track record needs three past buys with six months of prices behind them; Stephen S Clark has 1, so none is measured yet.
The newest scored trade: bought $249k of AMRZ on Aug 11, 2026, filed Aug 13, 2026, scored 67 (notable). In the last 12 months: 2 buys worth $249k 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.
AMRZ: Amrize Ltd
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 |
|---|---|---|---|---|---|
| 67Notable | Amrize Ltd | $249k 5,260 shares | +98% | +3% from low-27% from high | |
| 29Weak | Amrize Ltd | $114 2 shares | +0% | +15% from low-18% from high | |
| 51Moderate | Amrize Ltd | $259k 5,000 shares | - | +10% from low-3% from high |
Transactions
Every row this insider has filed, 13 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +5,260 | $47.31 | $249k | 10,637 | Aug 13, 2026 |
| May 5, 2026 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +2 | $52.75 | $114 | 5,260 | May 7, 2026 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +100 | $51.63 | $5,163 | 100 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +70 | $51.63 | $3,614 | 170 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +22 | $51.78 | $1,139 | 192 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +100 | $51.79 | $5,179 | 292 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +367 | $51.80 | $19k | 659 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +301 | $51.81 | $16k | 960 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +1,000 | $51.82 | $52k | 1,960 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +1,040 | $51.83 | $54k | 3,000 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +500 | $51.84 | $26k | 3,500 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +1,100 | $51.85 | $57k | 4,600 | Aug 18, 2025 |
| Aug 15, 2025 | AMRZ Amrize Ltd | POpen-market purchase Ordinary Shares | +400 | $51.86 | $21k | 5,000 | Aug 18, 2025 |
Questions about Stephen S Clark
Answered from the filings on this page, as of the latest one.
Is Stephen S Clark buying or selling?
In the last 12 months Stephen S Clark reported 2 open-market buys worth $249k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $249k of AMRZ on Aug 11, 2026. Grants, option exercises and tax withholding are not counted.
How did Stephen S Clark's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Stephen S Clark has 1.
Where does Stephen S Clark file Form 4?
Stephen S Clark has filed Form 4 at AMRZ (Amrize Ltd) as Chief People Officer. 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.