Burke Kathleen Flaherty
Insider CIK 1775435 · MKSI Sr. VP, GC & Secretary
Trades across companies
| Ticker | Code | Trade | Filed | Shares | Price | Value | Owned after | |
|---|---|---|---|---|---|---|---|---|
| MKSI MKS INC | S Sale | 2026-05-11 | 2026-05-12 | 4,355 | $319.94 | $1.39M | 49,439 | SEC↗ |
| MKSI MKS INC | S Sale | 2026-02-20 | 2026-02-23 | 4,254 | $250.00 | $1.06M | 53,794 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2026-02-17 | 2026-02-18 | 2,493 | — | $0 | 15,129 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2026-02-17 | 2026-02-18 | 2,336 | — | $0 | 17,622 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2026-02-17 | 2026-02-18 | 1,576 | — | $0 | 19,958 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2026-02-17 | 2026-02-18 | 563 | — | $0 | 21,534 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2026-02-17 | 2026-02-18 | 1,788 | — | $0 | 22,097 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2026-02-17 | 2026-02-18 | 3,451 | — | $0 | 23,884 | SEC↗ |
| MKSI MKS INC | A Award deriv | 2026-02-17 | 2026-02-18 | 3,328 | — | $0 | 27,335 | SEC↗ |
| MKSI MKS INC | M Exercise | 2026-02-17 | 2026-02-18 | 563 | — | $0 | 56,961 | SEC↗ |
| MKSI MKS INC | M Exercise | 2026-02-17 | 2026-02-18 | 3,451 | — | $0 | 54,611 | SEC↗ |
| MKSI MKS INC | M Exercise | 2026-02-17 | 2026-02-18 | 1,576 | — | $0 | 58,537 | SEC↗ |
| MKSI MKS INC | M Exercise | 2026-02-17 | 2026-02-18 | 2,336 | — | $0 | 60,873 | SEC↗ |
| MKSI MKS INC | M Exercise | 2026-02-17 | 2026-02-18 | 2,493 | — | $0 | 63,366 | SEC↗ |
| MKSI MKS INC | F Tax w/h | 2026-02-17 | 2026-02-18 | 5,318 | $260.74 | $1.39M | 58,048 | SEC↗ |
| MKSI MKS INC | M Exercise | 2026-02-17 | 2026-02-18 | 1,788 | — | $0 | 56,399 | SEC↗ |
| MKSI MKS INC | A Award deriv | 2026-02-08 | 2026-02-09 | 7,009 | — | $0 | 24,007 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2025-10-31 | 2025-11-04 | 144 | — | $0 | 17,340 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2025-10-31 | 2025-11-04 | 82 | — | $0 | 17,484 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2025-10-31 | 2025-11-04 | 341 | — | $0 | 16,999 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2025-10-31 | 2025-11-04 | 158 | — | $0 | 17,618 | SEC↗ |
| MKSI MKS INC | M Exercise deriv | 2025-10-31 | 2025-11-04 | 52 | — | $0 | 17,566 | SEC↗ |
| MKSI MKS INC | M Exercise | 2025-10-31 | 2025-11-04 | 158 | — | $0 | 51,233 | SEC↗ |
| MKSI MKS INC | F Tax w/h | 2025-10-31 | 2025-11-04 | 777 | $143.71 | $111.7K | 51,075 | SEC↗ |
| MKSI MKS INC | M Exercise | 2025-10-31 | 2025-11-04 | 341 | — | $0 | 51,852 | SEC↗ |
| MKSI MKS INC | M Exercise | 2025-10-31 | 2025-11-04 | 144 | — | $0 | 51,511 | SEC↗ |
| MKSI MKS INC | M Exercise | 2025-10-31 | 2025-11-04 | 82 | — | $0 | 51,367 | SEC↗ |
| MKSI MKS INC | M Exercise | 2025-10-31 | 2025-11-04 | 52 | — | $0 | 51,285 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2025-02-18 | 2025-02-19 | 1,648 | — | $0 | 17,776 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2025-02-18 | 2025-02-19 | 588 | — | $0 | 19,424 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2025-02-18 | 2025-02-19 | 1,870 | — | $0 | 20,012 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2025-02-18 | 2025-02-19 | 3,608 | — | $0 | 21,882 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2025-02-18 | 2025-02-19 | 1,645 | — | $0 | 25,490 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2025-02-18 | 2025-02-19 | 2,287 | — | $0 | 27,135 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2025-02-18 | 2025-02-19 | 7,822 | — | $0 | 29,422 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2025-02-18 | 2025-02-19 | 588 | — | $0 | 53,244 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2025-02-18 | 2025-02-19 | 1,870 | — | $0 | 52,656 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2025-02-18 | 2025-02-19 | 3,608 | — | $0 | 50,786 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | F Tax w/h | 2025-02-18 | 2025-02-19 | 3,970 | $103.67 | $411.6K | 50,922 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2025-02-18 | 2025-02-19 | 2,287 | — | $0 | 45,533 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2025-02-18 | 2025-02-19 | 1,648 | — | $0 | 54,892 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2025-02-18 | 2025-02-19 | 1,645 | — | $0 | 47,178 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2025-02-10 | 2025-02-11 | 1,766 | — | $0 | 21,599 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | S Sale | 2024-03-01 | 2024-03-04 | 7,411 | $122.89 | $910.7K | 42,999 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2024-02-15 | 2024-02-16 | 2,287 | — | $0 | 26,956 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2024-02-15 | 2024-02-16 | 3,608 | — | $0 | 21,703 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2024-02-15 | 2024-02-16 | 1,645 | — | $0 | 25,311 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2024-02-15 | 2024-02-16 | 1,869 | — | $0 | 19,834 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2024-02-15 | 2024-02-16 | 1,017 | — | $0 | 29,243 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2024-02-15 | 2024-02-16 | 2,033 | — | $0 | 30,260 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2024-02-15 | 2024-02-16 | 4,946 | — | $0 | 32,292 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2024-02-15 | 2024-02-16 | 3,608 | — | $0 | 53,453 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2024-02-15 | 2024-02-16 | 1,645 | — | $0 | 49,845 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | F Tax w/h | 2024-02-15 | 2024-02-16 | 4,912 | $122.15 | $600.0K | 50,410 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2024-02-15 | 2024-02-16 | 1,017 | — | $0 | 45,913 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2024-02-15 | 2024-02-16 | 2,033 | — | $0 | 44,896 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2024-02-15 | 2024-02-16 | 1,869 | — | $0 | 55,322 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2024-02-15 | 2024-02-16 | 2,287 | — | $0 | 48,200 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2024-02-05 | 2024-02-06 | 10,825 | — | $0 | 27,347 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | S Sale | 2023-08-07 | 2023-08-08 | 5,377 | $101.40 | $545.2K | 42,738 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | S Sale | 2023-08-07 | 2023-08-08 | 6,186 | $101.08 | $625.3K | 48,115 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2023-02-15 | 2023-02-16 | 5,609 | — | $0 | 26,628 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2023-02-15 | 2023-02-16 | 1,845 | — | $0 | 24,783 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2023-02-15 | 2023-02-16 | 1,281 | — | $0 | 23,502 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2023-02-15 | 2023-02-16 | 2,033 | — | $0 | 21,469 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2023-02-15 | 2023-02-16 | 1,645 | — | $0 | 16,522 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2023-02-15 | 2023-02-16 | 2,286 | — | $0 | 18,167 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2023-02-15 | 2023-02-16 | 1,016 | — | $0 | 20,453 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2023-02-15 | 2023-02-16 | 1,645 | — | $0 | 57,625 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2023-02-15 | 2023-02-16 | 2,286 | — | $0 | 55,980 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2023-02-15 | 2023-02-16 | 1,016 | — | $0 | 53,694 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2023-02-15 | 2023-02-16 | 2,033 | — | $0 | 52,678 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2023-02-15 | 2023-02-16 | 1,281 | — | $0 | 50,645 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2023-02-15 | 2023-02-16 | 1,845 | — | $0 | 49,363 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | F Tax w/h | 2023-02-15 | 2023-02-16 | 3,474 | $100.29 | $348.4K | 54,151 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2023-02-08 | 2023-02-09 | 6,860 | — | $0 | 21,019 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2022-10-28 | 2022-10-31 | 2,179 | — | $0 | 14,159 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | F Tax w/h | 2022-10-28 | 2022-10-31 | 967 | $84.58 | $81.8K | 47,442 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2022-10-28 | 2022-10-31 | 2,179 | — | $0 | 48,409 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2022-04-29 | 2022-05-02 | 4,935 | — | $0 | 16,338 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2022-02-15 | 2022-02-16 | 1,844 | — | $0 | 15,732 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2022-02-15 | 2022-02-16 | 2,032 | — | $0 | 12,419 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2022-02-15 | 2022-02-16 | 1,281 | — | $0 | 14,451 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2022-02-15 | 2022-02-16 | 1,016 | — | $0 | 11,403 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2022-02-15 | 2022-02-16 | 1,574 | — | $0 | 17,576 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2022-02-15 | 2022-02-16 | 1,291 | — | $0 | 19,150 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | F Tax w/h | 2022-02-15 | 2022-02-16 | 3,708 | $152.55 | $565.7K | 46,129 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2022-02-15 | 2022-02-16 | 1,016 | — | $0 | 49,837 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2022-02-15 | 2022-02-16 | 2,032 | — | $0 | 48,821 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2022-02-15 | 2022-02-16 | 1,281 | — | $0 | 46,789 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2022-02-15 | 2022-02-16 | 1,844 | — | $0 | 45,508 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2022-02-15 | 2022-02-16 | 1,574 | — | $0 | 43,664 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2022-02-15 | 2022-02-16 | 1,291 | — | $0 | 42,090 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2022-01-21 | 2022-01-24 | 6,098 | — | $0 | 20,441 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2021-10-28 | 2021-10-29 | 2,179 | — | $0 | 14,344 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2021-10-28 | 2021-10-29 | 2,179 | — | $0 | 41,699 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | F Tax w/h | 2021-10-28 | 2021-10-29 | 967 | $145.74 | $140.9K | 40,732 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2021-02-16 | 2021-02-17 | 3,049 | — | $0 | 24,633 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2021-02-16 | 2021-02-17 | 1,291 | — | $0 | 21,221 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2021-02-16 | 2021-02-17 | 1,574 | — | $0 | 19,647 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2021-02-16 | 2021-02-17 | 1,050 | — | $0 | 22,512 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2021-02-16 | 2021-02-17 | 1,071 | — | $0 | 23,562 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2021-02-16 | 2021-02-17 | 1,280 | — | $0 | 16,523 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2021-02-16 | 2021-02-17 | 1,844 | — | $0 | 17,803 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2021-02-16 | 2021-02-17 | 1,071 | — | $0 | 35,616 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2021-02-16 | 2021-02-17 | 1,050 | — | $0 | 36,666 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2021-02-16 | 2021-02-17 | 1,291 | — | $0 | 37,957 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2021-02-16 | 2021-02-17 | 1,574 | — | $0 | 39,531 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2021-02-16 | 2021-02-17 | 1,844 | — | $0 | 41,375 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2021-02-16 | 2021-02-17 | 1,280 | — | $0 | 42,655 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | F Tax w/h | 2021-02-16 | 2021-02-17 | 3,225 | $172.20 | $555.3K | 39,430 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2021-01-25 | 2021-01-26 | 5,533 | — | $0 | 21,584 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2020-02-18 | 2020-02-19 | 1,071 | — | $0 | 19,967 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2020-02-18 | 2020-02-19 | 1,291 | — | $0 | 17,626 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2020-02-18 | 2020-02-19 | 1,050 | — | $0 | 18,917 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2020-02-18 | 2020-02-19 | 1,574 | — | $0 | 16,052 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2020-02-18 | 2020-02-19 | 1,293 | — | $0 | 21,038 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise deriv | 2020-02-18 | 2020-02-19 | 1,565 | — | $0 | 22,331 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2020-02-18 | 2020-02-19 | 3,842 | — | $0 | 23,896 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2020-02-18 | 2020-02-19 | 1,071 | — | $0 | 32,859 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2020-02-18 | 2020-02-19 | 1,565 | — | $0 | 30,495 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2020-02-18 | 2020-02-19 | 1,574 | — | $0 | 36,774 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2020-02-18 | 2020-02-19 | 1,291 | — | $0 | 35,200 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2020-02-18 | 2020-02-19 | 1,050 | — | $0 | 33,909 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | F Tax w/h | 2020-02-18 | 2020-02-19 | 2,467 | $113.87 | $280.9K | 34,307 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | M Exercise | 2020-02-18 | 2020-02-19 | 1,293 | — | $0 | 31,788 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2020-01-27 | 2020-01-28 | 3,872 | — | $0 | 20,054 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | S Sale | 2019-10-30 | 2019-10-31 | 10,384 | $110.55 | $1.15M | 28,778 | SEC↗ |
| MKSI MKS INSTRUMENTS INC | A Award deriv | 2019-10-28 | 2019-10-30 | 4,358 | — | $0 | 16,181 | SEC↗ |