| Sep 4, 2026 | MTRNPresident and CEO | Grant or awardCode A · direct | 11 | — | — | 19,121 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 267 | $293.24 | $78K@ $293.24 | 116,699 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 286 | $295.17 | $84K@ $295.17 | 116,966 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 4,865 | $294.45 | $1.4M@ $294.45 | 117,252 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 2,337 | $293.64 | $686K@ $293.64 | 122,117 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 3,745 | $292.46 | $1.1M@ $292.46 | 124,454 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 11,174 | $290.12 | $3.2M@ $290.12 | 128,199 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 287 | $288.29 | $83K@ $288.29 | 139,373 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 1,375 | $287.67 | $396K@ $287.67 | 139,660 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Shares withheld for tax or exercise priceCode F · direct | 13,146 | $296.00 | $3.9M@ $296.00 | 141,035 | Form 4 |
| Aug 7, 2026 | MTRNPresident and CEO | Option exerciseCode M · direct | 24,594 | $68.82 | $1.7M@ $68.82 | 154,181 | Form 4 |
| Jun 12, 2026 | MTRNPresident and CEO | Grant or awardCode A · direct | 11 | — | — | 19,110 | Form 4 |
| Jun 9, 2026 | STDirector | Shares withheld for tax or exercise priceCode F · direct | 249 | $49.65 | $12K@ $49.65 | 17,105 | Form 4 |
| Jun 9, 2026 | STDirector | Grant or awardCode A · direct | 3,827 | — | — | 17,354 | Form 4 |
| May 13, 2026 | MTRNPresident and CEO | Shares withheld for tax or exercise priceCode F · direct | 15,183 | $209.70 | $3.2M@ $209.70 | 129,587 | Form 4 |
| May 13, 2026 | MTRNPresident and CEO | Option exerciseCode M · direct | 28,071 | $50.95 | $1.4M@ $50.95 | 144,770 | Form 4 |
| Mar 9, 2026 | MTRNPresident and CEO | Shares withheld for tax or exercise priceCode F · direct | 14 | $144.19 | $2K@ $144.19 | 116,699 | Form 4 |
| Mar 6, 2026 | MTRNPresident and CEO | Grant or awardCode A · direct | 18 | — | — | 19,099 | Form 4 |
| Mar 6, 2026 | MTRNPresident and CEO | Grant or awardCode A · direct | 25 | — | — | 116,713 | Form 4 |
| Mar 2, 2026 | MTRNPresident and CEO | Shares withheld for tax or exercise priceCode F · direct | 9,977 | $166.59 | $1.7M@ $166.59 | 116,688 | Form 4 |
| Mar 1, 2026 | MTRNPresident and CEO | Grant or awardCode A · direct | 29,415 | — | — | 29,415 | Form 4 |
| Mar 1, 2026 | MTRNPresident and CEO | Grant or awardCode A · direct | 9,604 | — | — | 19,081 | Form 4 |
| Mar 1, 2026 | MTRNPresident and CEO | Option exerciseCode M · direct | 8,657 | — | — | 126,665 | Form 4 |
| Feb 18, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 37 | $159.03 | $6K@ $159.03 | 118,008 | Form 4 |
| Feb 18, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 2,200 | $158.26 | $348K@ $158.26 | 118,045 | Form 4 |
| Feb 18, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 4,056 | $157.03 | $637K@ $157.03 | 120,245 | Form 4 |
| Feb 18, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 5,952 | $156.22 | $930K@ $156.22 | 124,301 | Form 4 |
| Feb 17, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 1,311 | $151.72 | $199K@ $151.72 | 130,253 | Form 4 |
| Feb 17, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 1,200 | $150.14 | $180K@ $150.14 | 131,564 | Form 4 |
| Feb 17, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 883 | $149.59 | $132K@ $149.59 | 132,764 | Form 4 |
| Feb 17, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 5,254 | $148.39 | $780K@ $148.39 | 133,647 | Form 4 |
| Feb 17, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 2,740 | $147.42 | $404K@ $147.42 | 138,901 | Form 4 |
| Feb 17, 2026 | MTRNPresident and CEO | Open-market saleCode S · direct | 1,575 | $146.65 | $231K@ $146.65 | 141,641 | Form 4 |
| Feb 17, 2026 | MTRNPresident and CEO | Shares withheld for tax or exercise priceCode F · direct | 19,159 | $151.78 | $2.9M@ $151.78 | 143,216 | Form 4 |
| Feb 17, 2026 | MTRNPresident and CEO | Option exerciseCode M · direct | 32,122 | $58.30 | $1.9M@ $58.30 | 162,375 | Form 4 |
| Feb 12, 2026 | MTRNPresident and CEO | Grant or awardCode A · direct | 16,668 | — | — | 130,253 | Form 4 |
| Jan 31, 2026 | MTRNPresident and CEO | Grant or awardCode A · direct | 228 | — | — | 18,134 | Form 4 |