- Corporate Officers - L
- Lee John Tseng-chung
Insider Trading History of Lee John Tseng-chung
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Lee John Tseng-chung since 2008.
This trader's CIK number is 1414656.
At the time of last reporting, Lee John Tseng-chung was the Director of Cognex Corp. (stock ticker symbol CGNX).
Also see all insider trading activities at Cognex Corp.
Note that in the past
Lee John Tseng-Chung also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Mks Instruments Inc (MKSI) by Lee John Tseng-chung
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | MKSI | 0 | $0 | 0 | $0 | 61,760 | $0 |
| 2024 | MKSI | 0 | $0 | 0 | $0 | 67,528 | $0 |
| 2023 | MKSI | 0 | $0 | 0 | $0 | 50,305 | $0 |
| 2022 | MKSI | 0 | $0 | 0 | $0 | 31,197 | $0 |
| 2021 | MKSI | 0 | $0 | 0 | $0 | 22,096 | $0 |
| 2020 | MKSI | 0 | $0 | 0 | $0 | 15,720 | $0 |
| 2019 | MKSI | 0 | $0 | 0 | $0 | 19,131 | $0 |
| 2018 | MKSI | 0 | $0 | 13,432 | $1,552,873 | 21,525 | $0 |
| 2017 | MKSI | 0 | $0 | 16,847 | $1,221,547 | 26,815 | $0 |
| 2016 | MKSI | 0 | $0 | 12,384 | $539,888 | 12,141 | $0 |
| 2015 | MKSI | 0 | $0 | 10,747 | $390,750 | 15,413 | $0 |
| 2014 | MKSI | 0 | $0 | 9,128 | $269,695 | 11,463 | $0 |
| 2013 | MKSI | 963 | $21,231 | 8,160 | $225,501 | 11,391 | $0 |
| 2012 | MKSI | 479 | $9,873 | 11,463 | $326,835 | 15,370 | $0 |
| 2011 | MKSI | 0 | $0 | 13,718 | $411,950 | 19,426 | $0 |
| 2010 | MKSI | 0 | $0 | 11,406 | $256,367 | 14,527 | $0 |
| 2009 | MKSI | 0 | $0 | 7,761 | $137,071 | 11,029 | $0 |
| 2008 | MKSI | 0 | $0 | 0 | $0 | 3,750 | $63,150 |
Yearly summary of insider trading at Cognex Corp (CGNX) by Lee John Tseng-chung
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | CGNX | 0 | $0 | 0 | $0 | 10,568 | $0 |
| 2024 | CGNX | 0 | $0 | 0 | $0 | 2,275 | $0 |
| 2023 | CGNX | 0 | $0 | 0 | $0 | 740 | $0 |
Insider trading activities at 2 companies by Lee John Tseng-chung:
1. Mks Instruments Inc (MKSI)
2. Cognex Corp (CGNX)
Table 1. Insider trading of Mks Instruments Inc (MKSI) by Lee John Tseng-chung
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-02-18 | MKSI | Option Ex | 61,760 | .00 | 0 |
| 2024-12-06 | MKSI | Option Ex | 2,994 | .00 | 0 |
| 2024-02-15 | MKSI | Option Ex | 64,534 | .00 | 0 |
| 2023-12-01 | MKSI | Option Ex | 3,275 | .00 | 0 |
| 2023-02-15 | MKSI | Option Ex | 47,030 | .00 | 0 |
| 2022-02-15 | MKSI | Option Ex | 31,197 | .00 | 0 |
| 2021-02-16 | MKSI | Option Ex | 22,096 | .00 | 0 |
| 2020-02-18 | MKSI | Option Ex | 15,720 | .00 | 0 |
| 2019-02-15 | MKSI | Option Ex | 19,131 | .00 | 0 |
| 2018-02-20 | MKSI | Sale | 13,432 | 115.61 | 1,552,873 |
| 2018-02-15 | MKSI | Option Ex | 21,525 | .00 | 0 |
| 2017-11-13 | MKSI | Sale | 2,113 | 104.02 | 219,783 |
| 2017-05-11 | MKSI | Option Ex | 3,557 | .00 | 0 |
| 2017-02-22 | MKSI | Sale | 14,734 | 67.99 | 1,001,764 |
| 2017-02-15 | MKSI | Option Ex | 16,083 | .00 | 0 |
| 2017-02-10 | MKSI | Option Ex | 7,175 | .00 | 0 |
| 2016-08-10 | MKSI | Sale | 9,955 | 46.36 | 461,523 |
| 2016-02-25 | MKSI | Option Ex | 4,967 | .00 | 0 |
| 2016-02-26 | MKSI | Sale | 994 | 32.70 | 32,503 |
| 2016-02-10 | MKSI | Option Ex | 7,174 | .00 | 0 |
| 2016-02-11 | MKSI | Sale | 1,435 | 31.96 | 45,862 |
| 2015-05-14 | MKSI | Sale | 10,747 | 36.36 | 390,750 |
| 2015-02-25 | MKSI | Option Ex | 4,968 | .00 | 0 |
| 2015-02-23 | MKSI | Option Ex | 3,272 | .00 | 0 |
| 2015-02-10 | MKSI | Option Ex | 7,173 | .00 | 0 |
| 2014-06-13 | MKSI | Sale | 9,128 | 29.55 | 269,695 |
| 2014-02-28 | MKSI | Option Ex | 3,225 | .00 | 0 |
| 2014-02-24 | MKSI | Option Ex | 3,271 | .00 | 0 |
| 2014-02-25 | MKSI | Option Ex | 4,967 | .00 | 0 |
| 2013-11-29 | MKSI | Buy | 443 | 23.96 | 10,615 |
| 2013-05-31 | MKSI | Buy | 520 | 20.42 | 10,616 |
| 2013-03-14 | MKSI | Sale | 8,160 | 27.64 | 225,501 |
| 2013-03-04 | MKSI | Option Ex | 4,897 | .00 | 0 |
| 2013-02-28 | MKSI | Option Ex | 3,224 | .00 | 0 |
| 2013-02-25 | MKSI | Option Ex | 3,270 | .00 | 0 |
| 2012-11-30 | MKSI | Buy | 479 | 20.61 | 9,873 |
| 2012-08-06 | MKSI | Sale | 2,868 | 26.67 | 76,498 |
| 2012-03-16 | MKSI | Option Ex | 3,501 | .00 | 0 |
| 2012-03-09 | MKSI | Sale | 8,595 | 29.13 | 250,337 |
| 2012-03-05 | MKSI | Option Ex | 4,895 | .00 | 0 |
| 2012-02-28 | MKSI | Option Ex | 6,974 | .00 | 0 |
| 2011-11-08 | MKSI | Sale | 3,140 | 27.56 | 86,544 |
| 2011-10-10 | MKSI | Option Ex | 3,750 | .00 | 0 |
| 2011-03-16 | MKSI | Option Ex | 3,500 | .00 | 0 |
| 2011-03-17 | MKSI | Sale | 4,449 | 29.31 | 130,382 |
| 2011-03-10 | MKSI | Option Ex | 3,530 | .00 | 0 |
| 2011-03-08 | MKSI | Sale | 6,129 | 31.82 | 195,024 |
| 2011-03-04 | MKSI | Option Ex | 4,896 | .00 | 0 |
| 2011-02-28 | MKSI | Option Ex | 3,750 | .00 | 0 |
| 2010-11-05 | MKSI | Sale | 2,374 | 21.60 | 51,278 |
| 2010-10-08 | MKSI | Option Ex | 3,750 | .00 | 0 |
| 2010-04-26 | MKSI | Sale | 6,623 | 24.15 | 159,945 |
| 2010-03-16 | MKSI | Option Ex | 3,499 | .00 | 0 |
| 2010-03-10 | MKSI | Option Ex | 3,528 | .00 | 0 |
| 2010-03-01 | MKSI | Option Ex | 3,750 | .00 | 0 |
| 2010-02-11 | MKSI | Sale | 2,409 | 18.74 | 45,144 |
| 2009-10-08 | MKSI | Option Ex | 3,750 | .00 | 0 |
| 2009-07-28 | MKSI | Sale | 6,187 | 19.13 | 118,357 |
| 2009-03-10 | MKSI | Option Ex | 3,529 | .00 | 0 |
| 2009-03-02 | MKSI | Option Ex | 3,750 | .00 | 0 |
| 2009-03-02 | MKSI | Sale | 1,574 | 11.89 | 18,714 |
| 2008-10-08 | MKSI | Option Ex | 3,750 | 16.84 | 63,150 |
Table 2. Insider trading of Cognex Corp (CGNX) by Lee John Tseng-chung
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-05-09 | CGNX | Option Ex | 1,848 | .00 | 0 |
| 2025-02-20 | CGNX | Option Ex | 6,973 | .00 | 0 |
| 2025-02-21 | CGNX | Option Ex | 1,747 | .00 | 0 |
| 2024-05-09 | CGNX | Option Ex | 1,109 | .00 | 0 |
| 2024-02-21 | CGNX | Option Ex | 1,166 | .00 | 0 |
| 2023-05-09 | CGNX | Option Ex | 740 | .00 | 0 |
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 Lee John Tseng-chung
(Director of Cognex Corp at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.