Elizabeth Mora is Director at MKS INSTRUMENTS INC (MKSI). They have made 10 open-market trades across 1 company since 2014, most recently 2026-09-01.
CIK 0001548935
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MKSI | SELL · 10b5-1 | 2026-09-01 | 2026-09-02 | $250.96 | $75K | -5.8% | +13.5% | — |
| MKSI | SELL · 10b5-1 | 2026-06-01 | 2026-06-02 | $318.02 | $95K | +5.9% | +9.1% | -23.6% |
| MKSI | SELL · 10b5-1 | 2026-03-02 | 2026-03-03 | $239.44 | $72K | -10.0% | -1.1% | +33.9% |
| MKSI | SELL · 10b5-1 | 2025-12-02 | 2025-12-03 | $158.81 | $48K | -1.3% | +4.3% | +44.1% |
| MKSI | SELL · 10b5-1 | 2025-09-02 | 2025-09-03 | $99.85 | $30K | +16.9% | +38.5% | +61.7% |
| MKSI | SELL · 10b5-1 | 2025-06-02 | 2025-06-03 | $81.78 | $25K | +3.2% | +20.8% | +17.7% |
| MKSI | SELL · 10b5-1 | 2025-03-03 | 2025-03-04 | $92.46 | $25K | -0.2% | -25.7% | -4.6% |
| MKSI | SELL · 10b5-1 | 2024-12-02 | 2024-12-03 | $113.41 | $31K | -4.7% | -10.3% | -27.5% |
| MKSI | SELL · 10b5-1 | 2024-09-03 | 2024-09-04 | $115.97 | $32K | +0.9% | -1.4% | +8.9% |
| MKSI | SELL · 10b5-1 | 2024-06-03 | 2024-06-04 | $129.41 | $36K | +6.3% | +6.5% | -14.7% |
| MKSI | SELL · 10b5-1 | 2024-04-01 | 2024-04-02 | $133.00 | $33K | -4.3% | -8.0% | +1.0% |
| MKSI | SELL · 10b5-1 | 2024-01-02 | 2024-01-03 | $100.90 | $25K | +7.3% | +14.0% | +35.5% |
| MKSI | SELL · 10b5-1 | 2023-10-02 | 2023-10-03 | $87.15 | $22K | -7.0% | -22.5% | +16.9% |
| MKSI | SELL · 10b5-1 | 2023-07-03 | 2023-07-05 | $108.49 | $27K | +4.9% | -3.4% | -18.5% |
| MKSI | SELL · 10b5-1 | 2023-06-01 | 2023-06-02 | $97.16 | $19K | +9.7% | +13.7% | +4.6% |
| MKSI | SELL · 10b5-1 | 2023-03-15 | 2023-03-16 | $86.67 | $17K | -8.1% | -8.9% | +16.3% |
| MKSI | SELL · 10b5-1 | 2022-12-01 | 2022-12-02 | $83.86 | $17K | +1.9% | +1.1% | +12.9% |
| MKSI | SELL · 10b5-1 | 2022-09-01 | 2022-09-02 | $96.72 | $19K | -5.9% | -11.5% | -13.8% |
| MKSI | SELL · 10b5-1 | 2022-03-01 | 2022-03-02 | $149.99 | $45K | -11.8% | -8.6% | -20.0% |
| MKSI | SELL · 10b5-1 | 2021-12-01 | 2021-12-02 | $155.91 | $47K | +1.9% | +13.3% | -2.1% |
| MKSI | SELL · 10b5-1 | 2021-09-01 | 2021-09-02 | $148.10 | $44K | +2.4% | -1.6% | +4.9% |
| MKSI | SELL | 2021-06-01 | 2021-06-02 | $190.00 | $57K | -1.5% | -8.2% | -19.8% |
| MKSI | SELL | 2021-03-01 | 2021-03-02 | $168.00 | $76K | +0.3% | +18.3% | +12.0% |
| MKSI | SELL | 2020-12-01 | 2020-12-02 | $139.54 | $63K | +4.5% | +4.4% | +13.1% |
| MKSI | SELL | 2020-09-01 | 2020-09-02 | $120.28 | $54K | -13.0% | -11.1% | +14.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.