Gross Mario Insider Trading Activity
Gross Mario has been net-buying over the last 12 months with 8 purchases and 0 sales across 1 company.
AMRZ is the most-traded position with 8 trades. The largest single transaction was a purchase of AMRZ for $234K on Aug 8, 2025.
Performance Scorecard
Forward stock performance after each transaction by Gross Mario. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | +11.2% | — | 100% | 5 |
| 90 days | +2.8% | — | 100% | 3 |
| 120 days | +13.2% | — | 100% | 3 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersAMRZ · Amrize Ltd
🔒 Subscribe to see trade entries
Pro members see exactly when Gross Mario bought and sold AMRZ.
Upgrade to ProRecent Trades
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| May 20, 2026 | AMRZ | Buy | 1,200 | $48.63 | $58K | Chief Supply Chain Officer |
| May 19, 2026 | AMRZ | Buy | 1,800 | $49.47 | $89K | Chief Supply Chain Officer |
| May 19, 2026 | AMRZ | Buy | 1,000 | $48.63 | $49K | Chief Supply Chain Officer |
| Mar 13, 2026 | AMRZ | Buy | 2,000 | $55.39 | $111K | Chief Supply Chain Officer |
| Mar 13, 2026 | AMRZ | Buy | 1,200 | $55.13 | $66K | Chief Supply Chain Officer |
| Aug 13, 2025 | AMRZ | Buy | 3,000 | $49.63 | $149K | Chief Supply Chain Officer |
| Aug 11, 2025 | AMRZ | Buy | 2,600 | $47.75 | $124K | Chief Supply Chain Officer |
| Aug 8, 2025 | AMRZ | Buy | 5,000 | $46.78 | $234K | Chief Supply Chain Officer |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| AMRZ | Amrize Ltd | 8 | $880K |
Other insiders at Amrize Ltd
5 other tracked filers at AMRZ.