The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Slessor Mike since 2015.
This trader's CIK number is 1590177.
At the time of last reporting, Slessor Mike was the CEO of Formfactor Inc. (stock ticker symbol FORM).
Also see all insider trading activities at Formfactor Inc.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | FORM | 0 | $0 | 24,000 | $784,496 | 87,109 | $0 |
| 2024 | FORM | 0 | $0 | 32,000 | $1,478,492 | 138,233 | $0 |
| 2023 | FORM | 0 | $0 | 10,000 | $319,670 | 44,631 | $0 |
| 2022 | FORM | 0 | $0 | 0 | $0 | 187,274 | $0 |
| 2021 | FORM | 0 | $0 | 155,010 | $6,410,740 | 290,004 | $844,000 |
| 2020 | FORM | 0 | $0 | 295,968 | $7,954,519 | 406,167 | $2,110,000 |
| 2019 | FORM | 0 | $0 | 129,811 | $2,597,921 | 195,879 | $843,999 |
| 2018 | FORM | 0 | $0 | 0 | $0 | 34,000 | $0 |
| 2017 | FORM | 0 | $0 | 0 | $0 | 76,201 | $0 |
| 2016 | FORM | 0 | $0 | 48,955 | $346,074 | 124,799 | $0 |
| 2015 | FORM | 0 | $0 | 53,724 | $448,180 | 128,331 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-05 | FORM | Option Ex | 3,644 | .00 | 0 |
| 2025-08-01 | FORM | Option Ex | 64,361 | .00 | 0 |
| 2025-07-01 | FORM | Sale | 4,000 | 34.03 | 136,120 |
| 2025-06-02 | FORM | Sale | 4,000 | 29.83 | 119,320 |
| 2025-05-07 | FORM | Option Ex | 5,908 | .00 | 0 |
| 2025-05-05 | FORM | Option Ex | 3,644 | .00 | 0 |
| 2025-05-01 | FORM | Sale | 4,000 | 31.72 | 126,880 |
| 2025-04-01 | FORM | Sale | 4,000 | 28.24 | 112,976 |
| 2025-03-03 | FORM | Sale | 4,000 | 33.05 | 132,200 |
| 2025-02-07 | FORM | Option Ex | 5,908 | .00 | 0 |
| 2025-02-05 | FORM | Option Ex | 3,644 | .00 | 0 |
| 2025-02-03 | FORM | Sale | 4,000 | 39.25 | 157,000 |
| 2024-12-02 | FORM | Sale | 4,000 | 40.87 | 163,480 |
| 2024-11-07 | FORM | Option Ex | 5,908 | .00 | 0 |
| 2024-11-05 | FORM | Option Ex | 3,644 | .00 | 0 |
| 2024-11-01 | FORM | Sale | 4,000 | 38.81 | 155,248 |
| 2024-10-01 | FORM | Sale | 4,000 | 45.52 | 182,088 |
| 2024-09-03 | FORM | Sale | 4,000 | 46.56 | 186,232 |
| 2024-08-07 | FORM | Option Ex | 5,908 | .00 | 0 |
| 2024-08-01 | FORM | Sale | 4,000 | 51.32 | 205,276 |
| 2024-08-02 | FORM | Option Ex | 13,536 | .00 | 0 |
| 2024-08-01 | FORM | Option Ex | 14,427 | .00 | 0 |
| 2024-07-23 | FORM | Option Ex | 88,902 | .00 | 0 |
| 2024-07-01 | FORM | Sale | 4,000 | 59.42 | 237,664 |
| 2024-05-07 | FORM | Option Ex | 5,908 | .00 | 0 |
| 2024-05-01 | FORM | Sale | 4,000 | 43.75 | 174,984 |
| 2024-03-01 | FORM | Sale | 4,000 | 43.38 | 173,520 |
| 2023-08-27 | FORM | Option Ex | 16,667 | .00 | 0 |
| 2023-08-02 | FORM | Option Ex | 13,537 | .00 | 0 |
| 2023-08-01 | FORM | Option Ex | 14,427 | .00 | 0 |
| 2023-02-13 | FORM | Sale | 10,000 | 31.97 | 319,670 |
| 2022-08-29 | FORM | Option Ex | 16,667 | .00 | 0 |
| 2022-08-02 | FORM | Option Ex | 13,537 | .00 | 0 |
| 2022-07-19 | FORM | Option Ex | 136,403 | .00 | 0 |
| 2022-06-06 | FORM | Option Ex | 20,667 | .00 | 0 |
| 2021-11-05 | FORM | Sale | 25,000 | 44.60 | 1,115,075 |
| 2021-08-27 | FORM | Option Ex | 16,666 | .00 | 0 |
| 2021-08-16 | FORM | Option Ex | 20,667 | .00 | 0 |
| 2021-07-19 | FORM | Option Ex | 132,004 | .00 | 0 |
| 2021-06-04 | FORM | Option Ex | 20,667 | .00 | 0 |
| 2021-05-26 | FORM | Sale | 15,010 | 34.68 | 520,516 |
| 2021-05-11 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2021-05-11 | FORM | Sale | 25,000 | 35.67 | 891,724 |
| 2021-05-12 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2021-05-12 | FORM | Sale | 25,000 | 34.81 | 870,275 |
| 2021-02-24 | FORM | Sale | 15,000 | 46.95 | 704,250 |
| 2021-02-10 | FORM | Sale | 25,000 | 46.27 | 1,156,875 |
| 2021-02-09 | FORM | Sale | 25,000 | 46.08 | 1,152,025 |
| 2021-02-10 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2021-02-09 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-11-19 | FORM | Sale | 14,112 | 38.75 | 546,783 |
| 2020-11-04 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-11-05 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-11-04 | FORM | Sale | 25,000 | 31.77 | 794,325 |
| 2020-11-05 | FORM | Sale | 25,000 | 33.30 | 832,600 |
| 2020-09-04 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-09-04 | FORM | Sale | 25,000 | 24.44 | 611,100 |
| 2020-09-08 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-09-08 | FORM | Sale | 25,000 | 23.10 | 577,550 |
| 2020-09-02 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-09-03 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-09-02 | FORM | Sale | 25,000 | 27.02 | 675,575 |
| 2020-09-03 | FORM | Sale | 25,000 | 25.70 | 642,475 |
| 2020-08-17 | FORM | Option Ex | 20,667 | .00 | 0 |
| 2020-07-21 | FORM | Option Ex | 97,500 | .00 | 0 |
| 2020-07-20 | FORM | Option Ex | 17,334 | .00 | 0 |
| 2020-06-04 | FORM | Option Ex | 20,666 | .00 | 0 |
| 2020-06-02 | FORM | Sale | 16,000 | 25.12 | 401,952 |
| 2020-05-11 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-05-12 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-05-12 | FORM | Sale | 25,000 | 24.60 | 614,925 |
| 2020-05-11 | FORM | Sale | 25,000 | 24.41 | 610,300 |
| 2020-03-02 | FORM | Sale | 15,856 | 22.16 | 351,384 |
| 2020-02-10 | FORM | Sale | 50,000 | 25.91 | 1,295,550 |
| 2020-02-11 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2020-02-10 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2019-12-02 | FORM | Sale | 14,976 | 22.82 | 341,707 |
| 2019-11-12 | FORM | Sale | 25,000 | 22.62 | 565,525 |
| 2019-11-11 | FORM | Sale | 25,000 | 22.38 | 559,425 |
| 2019-11-12 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2019-11-11 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2019-09-05 | FORM | Sale | 14,835 | 18.03 | 267,489 |
| 2019-09-05 | FORM | Option Ex | 14,835 | 8.44 | 125,207 |
| 2019-09-03 | FORM | Sale | 25,000 | 17.03 | 425,825 |
| 2019-09-04 | FORM | Option Ex | 25,000 | 8.44 | 211,000 |
| 2019-09-03 | FORM | Option Ex | 10,165 | 8.44 | 85,792 |
| 2019-09-04 | FORM | Sale | 25,000 | 17.52 | 437,950 |
| 2019-08-16 | FORM | Option Ex | 20,666 | .00 | 0 |
| 2019-07-22 | FORM | Option Ex | 17,333 | .00 | 0 |
| 2019-05-02 | FORM | Option Ex | 10,000 | .00 | 0 |
| 2019-04-23 | FORM | Option Ex | 47,880 | .00 | 0 |
| 2018-07-20 | FORM | Option Ex | 17,333 | .00 | 0 |
| 2018-05-28 | FORM | Option Ex | 6,667 | .00 | 0 |
| 2018-05-02 | FORM | Option Ex | 10,000 | .00 | 0 |
| 2017-05-28 | FORM | Option Ex | 6,667 | .00 | 0 |
| 2017-05-05 | FORM | Option Ex | 18,334 | .00 | 0 |
| 2017-05-01 | FORM | Option Ex | 41,200 | .00 | 0 |
| 2017-05-02 | FORM | Option Ex | 10,000 | .00 | 0 |
| 2016-05-31 | FORM | Sale | 3,401 | 7.33 | 24,922 |
| 2016-05-31 | FORM | Option Ex | 6,666 | .00 | 0 |
| 2016-05-09 | FORM | Sale | 5,690 | 6.80 | 38,692 |
| 2016-05-05 | FORM | Option Ex | 18,333 | .00 | 0 |
| 2016-05-06 | FORM | Option Ex | 15,000 | .00 | 0 |
| 2016-05-06 | FORM | Sale | 7,007 | 6.84 | 47,927 |
| 2016-05-02 | FORM | Option Ex | 84,800 | .00 | 0 |
| 2016-05-03 | FORM | Sale | 32,857 | 7.14 | 234,533 |
| 2015-11-06 | FORM | Sale | 10,883 | 8.52 | 92,766 |
| 2015-11-06 | FORM | Option Ex | 19,998 | .00 | 0 |
| 2015-05-06 | FORM | Option Ex | 15,000 | .00 | 0 |
| 2015-05-07 | FORM | Sale | 6,674 | 8.28 | 55,280 |
| 2015-05-06 | FORM | Sale | 7,002 | 8.25 | 57,773 |
| 2015-05-05 | FORM | Option Ex | 18,333 | .00 | 0 |
| 2015-05-05 | FORM | Sale | 29,165 | 8.31 | 242,361 |
| 2015-05-04 | FORM | Option Ex | 75,000 | .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 Slessor Mike (CEO of Formfactor Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.