The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Burke Kathleen Flaherty since 2019.
This trader's CIK number is 1775435.
At the time of last reporting, Burke Kathleen Flaherty was the EVP, GC & Secretary of Mks Instruments Inc. (stock ticker symbol MKSI).
Also see all insider trading activities at Mks Instruments Inc.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | MKSI | 0 | $0 | 0 | $0 | 11,645 | $0 |
| 2024 | MKSI | 0 | $0 | 7,411 | $910,737 | 12,458 | $0 |
| 2023 | MKSI | 0 | $0 | 11,563 | $1,170,661 | 10,105 | $0 |
| 2022 | MKSI | 0 | $0 | 0 | $0 | 11,217 | $0 |
| 2021 | MKSI | 0 | $0 | 0 | $0 | 10,289 | $0 |
| 2020 | MKSI | 0 | $0 | 0 | $0 | 7,844 | $0 |
| 2019 | MKSI | 0 | $0 | 10,384 | $1,147,992 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-02-18 | MKSI | Option Ex | 11,645 | .00 | 0 |
| 2024-03-01 | MKSI | Sale | 7,411 | 122.89 | 910,737 |
| 2024-02-15 | MKSI | Option Ex | 12,458 | .00 | 0 |
| 2023-08-07 | MKSI | Sale | 11,563 | 101.24 | 1,170,661 |
| 2023-02-15 | MKSI | Option Ex | 10,105 | .00 | 0 |
| 2022-10-28 | MKSI | Option Ex | 2,179 | .00 | 0 |
| 2022-02-15 | MKSI | Option Ex | 9,038 | .00 | 0 |
| 2021-10-28 | MKSI | Option Ex | 2,179 | .00 | 0 |
| 2021-02-16 | MKSI | Option Ex | 8,110 | .00 | 0 |
| 2020-02-18 | MKSI | Option Ex | 7,844 | .00 | 0 |
| 2019-10-30 | MKSI | Sale | 10,384 | 110.55 | 1,147,992 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Burke Kathleen Flaherty (EVP, GC & Secretary of Mks Instruments Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.