Mario Gross insider trades: Amrize (AMRZ) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Mario reports to the SEC
Open-market buys and sales
5 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | AMRZ | ↑ Buy | 3,568 | $46.60 | $166K | Direct | Aug 13, 2026 (2d) |
| May 20, 2026 | AMRZ | ↑ Buy | 4,000 | $49.01 | $196K | Direct | May 21, 2026 (1d) |
| Mar 13, 2026 | AMRZ | ↑ Buy | 3,200 | $55.29 | $177K | Direct | Mar 16, 2026 (3d) |
| Aug 13, 2025 | AMRZ | ↑ Buy | 3,000 | $49.63 | $149K | Direct | Aug 14, 2025 (1d) |
| Aug 11, 2025 | AMRZ | ↑ Buy | 7,600 | $47.11 | $358K | Direct | Aug 12, 2025 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other AMRZ insiders
Open-market trades in the last 12 months
About Mario Gross's insider trades
Mario Gross is Chief Supply Chain Officer at Amrize (AMRZ). Since Aug 11, 2025, Mario has reported 5 open-market purchases worth $1.0M and no sales on SEC Form 4. In the last 12 months: 3 buys ($539K).
Their filings also include grants and awards (1 filing), other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every AMRZ insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.