Rivkin Robert S. (CIK 1906604) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-04-22). Recent activity: Sell AMRZ (740 shares), Buy AMRZ (2,976 shares), Buy AMRZ (2,958 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-22 | Amrize Ltd (AMRZ) | Director | Sell | 740 | $42,269 |
| 2026-04-22 | Amrize Ltd (AMRZ) | Director | Buy | 2,976 | $0 |
| 2025-08-13 | Amrize Ltd (AMRZ) | Director | Buy | 2,958 | $0 |
Source: SEC Form 4 filings · as of 2026-04-22