Jacqueline F. Moloney is Director at MKS INSTRUMENTS INC (MKSI). They have made 17 open-market trades across 2 companies since 2012, most recently 2026-05-14.
CIK 0001501968
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.
6 open-market purchases totalling $196K since 2012, against 11 sales. Across 6 scored buys the stock is down 1.5% at ninety days, and 2.7 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| MKSI | 8,775 | $1.9M |
| EBTC | 25,718 | $1.0M |
| Total | $2.9M |
Shares reported on the most recent Form 4, priced at the 2026-05-15 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 0% | 17% |
| Avg Move | -6.2% | -3.7% | -1.5% |
| Alpha | -1.8% | -5.0% | -2.7% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MKSI | SELL | 2026-05-14 | 2026-05-15 | $312.20 | $312K | +3.3% | +19.8% | -2.2% |
| MKSI | SELL | 2026-05-13 | 2026-05-14 | $318.99 | $447K | +9.7% | +25.4% | +2.6% |
| MKSI | SELL | 2026-03-12 | 2026-03-13 | $213.84 | $145K | +11.3% | +24.7% | +57.5% |
| MKSI | SELL | 2026-02-20 | 2026-02-23 | $247.55 | $205K | -9.6% | -4.4% | +31.0% |
| MKSI | SELL · 10b5-1 | 2025-10-01 | 2025-10-02 | $122.14 | $37K | -2.9% | +6.5% | +17.0% |
| MKSI | SELL · 10b5-1 | 2025-08-01 | 2025-08-04 | $92.10 | $28K | +10.7% | +6.0% | +53.8% |
| MKSI | SELL · 10b5-1 | 2025-03-03 | 2025-03-04 | $92.46 | $28K | -0.2% | -25.7% | -4.6% |
| MKSI | SELL · 10b5-1 | 2024-12-10 | 2024-12-11 | $114.80 | $34K | -5.5% | -2.9% | -29.8% |
| MKSI | SELL · 10b5-1 | 2024-10-01 | 2024-10-02 | $108.90 | $27K | +8.3% | -3.3% | +0.4% |
| MKSI | SELL · 10b5-1 | 2024-08-01 | 2024-08-02 | $123.46 | $31K | +13.2% | +6.7% | -1.3% |
| MKSI | SELL · 10b5-1 | 2024-03-01 | 2024-03-04 | $122.89 | $31K | -1.9% | +6.1% | +0.9% |
| MKSI | SELL | 2024-02-16 | 2024-02-20 | $124.12 | $476K | +7.7% | +8.5% | +12.9% |
| MKSI | SELL · 10b5-1 | 2023-12-01 | 2023-12-04 | $82.23 | $21K | +19.2% | +17.6% | +52.5% |
| MKSI | SELL | 2023-08-28 | 2023-08-29 | $95.26 | $24K | -5.5% | -12.7% | -18.2% |
| EBTC | SELL | 2023-07-18 | 2024-01-25 | $— | $25 | -9.8% | -10.7% | -17.7% |
| MKSI | SELL · 10b5-1 | 2023-06-01 | 2023-06-02 | $97.16 | $22K | +9.7% | +13.7% | +4.6% |
| MKSI | SELL · 10b5-1 | 2023-03-15 | 2023-03-16 | $86.67 | $20K | -8.1% | -8.9% | +16.3% |
| MKSI | SELL · 10b5-1 | 2022-12-01 | 2022-12-02 | $83.86 | $19K | +1.9% | +1.1% | +12.9% |
| MKSI | SELL · 10b5-1 | 2022-10-03 | 2022-10-04 | $84.14 | $19K | -13.8% | -20.2% | -2.3% |
| MKSI | SELL | 2020-03-16 | 2020-03-16 | $81.45 | $25K | +19.5% | +18.0% | +46.2% |
| MKSI | SELL | 2019-08-02 | 2019-08-05 | $81.98 | $49K | -1.5% | +8.1% | +50.8% |
| MKSI | SELL | 2019-05-08 | 2019-05-09 | $85.86 | $22K | -9.9% | -9.4% | -12.7% |
| MKSI | SELL | 2018-06-11 | 2018-06-12 | $100.20 | $75K | -3.8% | -4.9% | -17.4% |
| EBTC | BUY | 2016-06-21 | 2016-06-23 | $21.50 | $102K | -4.9% | -7.0% | +5.9% |
| EBTC | BUY | 2015-03-02 | 2015-03-04 | $21.54 | $10K | -6.4% | -3.0% | -3.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.