Gross Mario: insider buys
Every open-market stock purchase reported by Gross Mario to the SEC on Form 4.
Total bought$539.22K
Purchases3
Companies1
Last purchase filedAug 13, 2026
Return on these buys-17%
Gross Mario has made 3 open-market purchases worth $539.22K in 1 company since Mar 16, 2026, according to SEC Form 4 filings. The most recent was filed on Aug 13, 2026: 3,568 shares of AMRZ at $46.60 (Chief Supply Chain Officer), worth $166.25K. The largest was $196.03K of AMRZ on May 19, 2026. Taken together, these purchases are down 17% at the latest closing prices (split-adjusted, weighted by amount).
Companies Gross Mario bought
| Ticker | Company | Role | Buys | Total | Since buy | Last filed |
|---|---|---|---|---|---|---|
| AMRZ | Amrize Ltd | Chief Supply Chain Officer | 3 | $539.22K | -17% | Aug 13 |
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| Filed | Stock | Insider | Value | Shares | Price | Since buy | Stake | Trade | |
|---|---|---|---|---|---|---|---|---|---|
| Aug 13 | AMRZAmrize Ltd | Gross MarioChief Supply Chain Officer | $166.25K | 3,568 | $46.60 | -11% | +10% | Aug 11 | SEC |
| May 21 | AMRZAmrize Ltd | Gross MarioChief Supply Chain Officer | $196.03K | 4,000 | $49.01 | -16% | +13% | May 19 | SEC |
| Mar 16 | AMRZAmrize Ltd | Gross MarioChief Supply Chain Officer | $176.94K | 3,200 | $55.29 | -25% | +12% | Mar 13 | SEC |