FormFactor, Inc.
US ˙ NasdaqGS ˙ US3463751087

Introduction

This page provides a comprehensive analysis of the known insider trading history of Mike Slessor. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate Mike Slessor has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:FORM / FormFactor, Inc. CEO, Director 539,748
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Mike Slessor. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Purchases FORM / FormFactor, Inc. - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made in FORM / FormFactor, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider and security combination

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

FORM / FormFactor, Inc. Insider Trades
Insider Sales FORM / FormFactor, Inc. - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made in FORM / FormFactor, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market sales that were not part of an automatic trading plan.

Trade Date Ticker Insider Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2023-02-13 FORM SLESSOR MIKE 10,000 31.9666 10,000 31.9666 319,666 80 26.5600 -54,066 -16.91
2021-11-05 FORM SLESSOR MIKE 25,000 44.6028 25,000 44.6028 1,115,070
2016-05-31 FORM SLESSOR MIKE 3,401 7.3280 3,401 7.3280 24,923
2016-05-09 FORM SLESSOR MIKE 5,690 6.8000 5,690 6.8000 38,692
2016-05-06 FORM SLESSOR MIKE 7,007 6.8400 7,007 6.8400 47,928
2016-05-03 FORM SLESSOR MIKE 32,857 7.1383 32,857 7.1383 234,543
2015-11-06 FORM SLESSOR MIKE 10,883 8.5240 10,883 8.5240 92,767
2015-05-07 FORM SLESSOR MIKE 6,674 8.2831 6,674 8.2831 55,281
2015-05-06 FORM SLESSOR MIKE 7,002 8.2511 7,002 8.2511 57,774
2015-05-05 FORM SLESSOR MIKE 28,560 8.4278 28,560 8.4278 240,698
2015-05-05 FORM SLESSOR MIKE 605 8.1930 605 8.1930 4,957
2014-11-07 FORM SLESSOR MIKE 7,515 8.7070 7,515 8.7070 65,433
2014-11-07 FORM SLESSOR MIKE 7,734 8.7070 7,734 8.7070 67,340
2014-05-07 FORM SLESSOR MIKE 5,852 5.7749 5,852 5.7749 33,795
2013-11-07 FORM SLESSOR MIKE 7,677 5.0918 7,677 5.0918 39,090

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

FORM / FormFactor, Inc. Insider Trades
Insider Trading History

This table shows the complete list of insider trades made by Mike Slessor as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2025-08-08 2025-08-07 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -3,282 539,748 -0.60 27.98 -91,830 15,102,149
2025-08-08 2025-08-07 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 5,908 543,030 1.10
2025-08-06 2025-08-05 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -2,025 537,122 -0.38 29.14 -59,008 15,651,735
2025-08-06 2025-08-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 3,644 539,147 0.68
2025-08-04 2025-08-01 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -8,014 535,503 -1.47 28.93 -231,845 15,492,102
2025-08-04 2025-08-01 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 14,426 543,517 2.73
2025-08-04 2025-08-01 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -27,739 529,091 -4.98 28.93 -802,489 15,306,603
2025-08-04 2025-08-01 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 49,935 556,830 9.85
2025-07-02 2025-07-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 506,895 -0.78 34.03 -136,120 17,249,637
2025-06-03 2025-06-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 510,895 -0.78 29.83 -119,320 15,239,998
2025-05-08 2025-05-07 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -3,282 514,895 -0.63 29.66 -97,344 15,271,786
2025-05-08 2025-05-07 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 5,908 518,177 1.15
2025-05-07 2025-05-05 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -2,025 512,269 -0.39 29.81 -60,365 15,270,739
2025-05-07 2025-05-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 3,644 514,294 0.71
2025-05-01 2025-05-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 510,650 -0.78 31.72 -126,880 16,197,818
2025-04-01 2025-04-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 514,650 -0.77 28.24 -112,977 14,535,929
2025-03-04 2025-03-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 518,650 -0.77 33.05 -132,200 17,141,382
2025-02-10 2025-02-07 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -3,282 522,650 -0.62 35.84 -117,627 18,731,776
2025-02-10 2025-02-07 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 5,908 525,932 1.14
2025-02-06 2025-02-05 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -2,151 520,024 -0.41 41.12 -88,449 21,383,387
2025-02-06 2025-02-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 3,644 522,175 0.70
2025-02-03 2025-02-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -100 518,531 -0.02 39.53 -3,953 20,497,530
2025-02-03 2025-02-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -3,900 518,631 -0.75 38.97 -151,983 20,211,050
2025-01-02 2025-01-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -400 522,531 -0.08 45.01 -18,004 23,519,120
2025-01-02 2025-01-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -3,600 522,931 -0.68 44.38 -159,768 23,207,678
2024-12-02 2024-12-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -101 526,531 -0.02 41.17 -4,158 21,677,281
2024-12-02 2024-12-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -3,899 526,632 -0.73 40.57 -158,182 21,365,460
2024-11-08 2024-11-07 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -3,276 530,531 -0.61 42.40 -138,902 22,494,514
2024-11-08 2024-11-07 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 5,908 533,807 1.12
2024-11-06 2024-11-05 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -2,021 527,899 -0.38 39.23 -79,284 20,709,478
2024-11-06 2024-11-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 3,644 529,920 0.69
2024-11-04 2024-11-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 526,276 -0.75 38.81 -155,249 20,425,982
2024-10-02 2024-10-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -1,000 530,276 -0.19 46.00 -46,001 24,393,226
2024-10-02 2024-10-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -3,000 531,276 -0.56 45.04 -135,128 23,930,159
2024-09-04 2024-09-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -1,188 534,276 -0.22 47.17 -56,040 25,202,814
2024-09-04 2024-09-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -2,812 535,464 -0.52 45.94 -129,197 24,601,840
2024-08-08 2024-08-07 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -3,276 538,276 -0.60 43.11 -141,228 23,205,078
2024-08-08 2024-08-07 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 5,908 541,552 1.10
2024-08-05 2024-08-02 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -7,506 535,644 -1.38 40.90 -306,995 21,907,840
2024-08-05 2024-08-02 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 13,536 543,150 2.56
2024-08-05 2024-08-01 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -8,000 529,614 -1.49 47.25 -378,000 25,024,262
2024-08-05 2024-08-01 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 14,427 537,614 2.76
2024-08-05 2024-08-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -1,094 523,187 -0.21 53.80 -58,861 28,149,396
2024-08-05 2024-08-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -8 524,281 0.00 52.62 -421 27,587,666
2024-08-05 2024-08-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -471 524,289 -0.09 51.29 -24,157 26,890,049
2024-08-05 2024-08-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -1,389 524,760 -0.26 50.28 -69,844 26,386,822
2024-08-05 2024-08-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -1,038 526,149 -0.20 48.60 -50,445 25,569,736
2024-07-25 2024-07-23 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -49,296 527,187 -8.55 60.25 -2,970,084 31,763,017
2024-07-25 2024-07-23 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 88,902 576,483 18.23
2024-07-02 2024-07-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -682 487,581 -0.14 60.57 -41,312 29,534,829
2024-07-02 2024-07-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -995 488,263 -0.20 59.24 -58,940 28,922,601
2024-07-02 2024-07-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -2,323 489,258 -0.47 58.44 -135,750 28,590,965
2024-06-04 2024-06-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -1,230 491,581 -0.25 54.83 -67,447 26,955,746
2024-06-04 2024-06-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -2,770 492,811 -0.56 54.17 -150,051 26,695,670
2024-05-08 2024-05-07 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -2,108 495,581 -0.42 56.03 -118,111 27,767,403
2024-05-08 2024-05-07 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 5,908 497,689 1.20
2024-05-02 2024-05-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 491,781 -0.81 43.75 -174,982 21,513,255
2024-04-02 2024-04-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 495,781 -0.80 45.94 -183,755 22,775,535
2024-03-04 2024-03-01 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,000 499,781 -0.79 43.38 -173,518 21,680,250
2024-02-23 2024-02-13 4/A FORM FORMFACTOR INC
Common Stock
G - Gift -3,500 562,861 -0.62
2024-02-15 2024-02-13 4 FORM FORMFACTOR INC
Common Stock
G - Gift -3,500 397,269 -0.87
2024-02-09 2024-02-07 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -2,248 566,001 -0.40 38.12 -85,694 21,575,958
2023-11-08 2023-11-07 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -2,930 568,249 -0.51 36.28 -106,300 20,616,074
2023-08-30 2023-08-27 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -8,624 571,179 -1.49 31.25 -269,500 17,849,344
2023-08-30 2023-08-27 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 16,667 579,803 2.96
2023-08-09 2023-08-07 4 FORM FORMFACTOR INC
Common Stock
A - Award 70,896 563,136 14.40
2023-08-03 2023-08-02 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -4,873 492,240 -0.98 36.02 -175,525 17,730,485
2023-08-03 2023-08-02 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 13,537 497,113 2.80
2023-08-03 2023-08-01 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -4,989 483,576 -1.02 37.16 -185,391 17,969,684
2023-08-03 2023-08-01 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 14,427 488,565 3.04
2023-02-15 2023-02-13 4 FORM FORMFACTOR INC
Common Stock
G - Gift -3,300 474,138 -0.69
2023-02-15 2023-02-13 4 FORM FORMFACTOR INC
Common Stock
S - Sale -10,000 477,438 -2.05 31.97 -319,666 15,262,070
2022-08-31 2022-08-29 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -8,264 487,438 -1.67 30.98 -256,019 15,100,829
2022-08-31 2022-08-29 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 16,667 495,702 3.48
2022-08-04 2022-08-02 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -6,712 479,035 -1.38 34.85 -233,913 16,694,370
2022-08-04 2022-08-02 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 13,537 485,747 2.87
2022-07-21 2022-07-19 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -67,629 472,210 -12.53 38.87 -2,628,739 18,354,803
2022-07-21 2022-07-19 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 136,403 539,839 33.81
2022-06-08 2022-06-06 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -7,579 403,436 -1.84 40.46 -306,646 16,323,021
2022-06-08 2022-06-06 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 20,667 411,015 5.29
2022-02-10 2022-02-07 4 FORM FORMFACTOR INC
Common Stock
G - Gift -2,600 390,348 -0.66
2021-11-08 2021-11-05 4 FORM FORMFACTOR INC
Common Stock
S - Sale -25,000 392,948 -5.98 44.60 -1,115,070 17,526,581
2021-08-30 2021-08-27 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -16,666 33,334 -33.33
2021-08-30 2021-08-27 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -8,997 417,948 -2.11 39.25 -353,132 16,404,459
2021-08-30 2021-08-27 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 16,666 426,945 4.06
2021-08-17 2021-08-16 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -20,667 0 -100.00
2021-08-17 2021-08-16 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -11,157 410,279 -2.65 35.59 -397,078 14,601,830
2021-08-17 2021-08-16 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 20,667 421,436 5.16
2021-08-09 2021-08-05 4 FORM FORMFACTOR INC
Common Stock
G - Gift -2,000 400,769 -0.50
2021-08-03 2021-08-02 4 FORM FORMFACTOR INC
Restricted Stock Units
A - Award 40,610 40,610
2021-07-21 2021-07-19 4 FORM FORMFACTOR INC
Performance Shares
M - Exercise -132,004 0 -100.00
2021-07-21 2021-07-19 4 FORM FORMFACTOR INC
Performance Shares
A - Award 132,004 132,004
2021-07-21 2021-07-19 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -71,256 402,769 -15.03 33.96 -2,419,854 13,678,035
2021-07-21 2021-07-19 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 132,004 474,025 38.60
2021-06-07 2021-06-04 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -20,667 20,667 -50.00
2021-06-07 2021-06-04 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -11,157 342,021 -3.16 34.91 -389,491 11,939,953
2021-06-07 2021-06-04 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 20,667 353,178 6.22
2021-05-26 2021-05-26 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -15,010 332,511 -4.32 34.68 -520,511 11,530,683
2021-05-12 2021-05-12 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise X -25,000 0 -100.00 8.44 -211,000
2021-05-12 2021-05-12 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -200 347,521 -0.06 35.68 -7,136 12,399,549
2021-05-12 2021-05-12 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -5,712 347,721 -1.62 34.83 -198,962 12,111,887
2021-05-12 2021-05-12 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -19,088 353,433 -5.12 33.92 -647,478 11,988,695
2021-05-12 2021-05-12 4 FORM FORMFACTOR INC
Common Stock
M - Exercise X 25,000 372,521 7.19 8.44 211,000 3,144,077
2021-05-12 2021-05-11 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise X -25,000 25,000 -50.00 8.44 -211,000 211,000
2021-05-12 2021-05-11 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -19,564 347,521 -5.33 35.95 -703,251 12,492,059
2021-05-12 2021-05-11 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -5,436 367,085 -1.46 35.39 -192,390 12,991,836
2021-05-12 2021-05-11 4 FORM FORMFACTOR INC
Common Stock
M - Exercise X 25,000 372,521 7.19 8.44 211,000 3,144,077
2021-02-24 2021-02-24 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -15,000 347,521 -4.14 46.95 -704,250 16,316,111
2021-02-11 2021-02-10 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 50,000 -33.33 8.44 -211,000 422,000
2021-02-11 2021-02-10 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 362,521 -6.45 46.27 -1,156,868 16,775,551
2021-02-11 2021-02-10 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 387,521 6.90 8.44 211,000 3,270,677
2021-02-11 2021-02-09 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -3,302 75,000 -4.22 8.44 -27,869 633,000
2021-02-11 2021-02-09 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -21,698 78,302 -21.70 8.44 -183,131 660,869
2021-02-11 2021-02-09 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -3,302 362,521 -0.90 46.08 -152,159 16,705,330
2021-02-11 2021-02-09 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -21,698 365,823 -5.60 46.08 -999,866 16,857,490
2021-02-11 2021-02-09 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 3,302 387,521 0.86 8.44 27,869 3,270,677
2021-02-11 2021-02-09 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 21,698 384,219 5.99 8.44 183,131 3,242,808
2020-11-20 2020-11-19 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -4,602 362,521 -1.25 38.76 -178,389 14,052,510
2020-11-20 2020-11-19 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -9,510 367,123 -2.53 38.73 -368,318 14,218,527
2020-11-06 2020-11-05 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 100,000 -20.00 8.84 -221,000 884,000
2020-11-06 2020-11-05 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 376,633 -6.22 33.30 -832,610 12,543,536
2020-11-06 2020-11-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 401,633 6.64 8.44 211,000 3,389,783
2020-11-06 2020-11-04 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 125,000 -16.67 8.44 -211,000 1,055,000
2020-11-06 2020-11-04 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 376,633 -6.22 31.77 -794,325 11,966,760
2020-11-06 2020-11-04 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 401,633 6.64 8.44 211,000 3,389,783
2020-09-09 2020-09-08 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 150,000 -14.29 8.44 -211,000 1,266,000
2020-09-09 2020-09-08 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 376,633 -6.22 23.10 -577,548 8,700,938
2020-09-09 2020-09-08 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 401,633 6.64 8.44 211,000 3,389,783
2020-09-09 2020-09-04 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 175,000 -12.50 8.44 -211,000 1,477,000
2020-09-09 2020-09-04 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 376,633 -6.22 24.44 -611,105 9,206,492
2020-09-09 2020-09-04 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 401,633 6.64 8.44 211,000 3,389,783
2020-09-04 2020-09-03 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 200,000 -11.11 8.44 -211,000 1,688,000
2020-09-04 2020-09-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 376,633 -6.22 25.70 -642,478 9,679,129
2020-09-04 2020-09-03 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 401,633 6.64 8.44 211,000 3,389,783
2020-09-04 2020-09-02 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 225,000 -10.00 8.44 -211,000 1,899,000
2020-09-04 2020-09-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 376,633 -6.22 27.02 -675,568 10,177,641
2020-09-04 2020-09-02 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 401,633 6.64 8.44 211,000 3,389,783
2020-08-31 2020-08-27 4 FORM FORMFACTOR INC
Restricted Stock Units
A - Award 50,000 50,000
2020-08-19 2020-08-17 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -20,667 20,667 -50.00
2020-08-19 2020-08-17 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -11,157 376,633 -2.88 29.25 -326,342 11,016,515
2020-08-19 2020-08-17 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 20,667 387,790 5.63
2020-07-23 2020-07-21 4 FORM FORMFACTOR INC
Performance Shares
A - Award 97,500 97,500
2020-07-23 2020-07-21 4 FORM FORMFACTOR INC
Performance Shares
M - Exercise -97,500 0 -100.00
2020-07-23 2020-07-21 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -52,631 367,123 -12.54 31.67 -1,666,824 11,626,785
2020-07-23 2020-07-21 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 97,500 419,754 30.26
2020-07-22 2020-07-20 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -17,334 0 -100.00
2020-07-22 2020-07-20 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -9,357 322,254 -2.82 32.15 -300,828 10,360,466
2020-07-22 2020-07-20 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 17,334 331,611 5.52
2020-06-08 2020-06-04 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -20,666 41,334 -33.33
2020-06-08 2020-06-04 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -11,156 314,277 -3.43 26.60 -296,750 8,359,768
2020-06-08 2020-06-04 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 20,666 325,433 6.78
2020-06-03 2020-06-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -16,000 304,767 -4.99 25.12 -401,949 7,656,296
2020-05-12 2020-05-12 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 250,000 -9.09 8.44 -211,000 2,110,000
2020-05-12 2020-05-12 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 320,767 -7.23 24.60 -614,930 7,889,970
2020-05-12 2020-05-12 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 345,767 7.79 8.44 211,000 2,918,273
2020-05-12 2020-05-11 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 275,000 -8.33 8.44 -211,000 2,321,000
2020-05-12 2020-05-11 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 320,767 -7.23 24.41 -610,310 7,830,692
2020-05-12 2020-05-11 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 345,767 7.79 8.44 211,000 2,918,273
2020-03-04 2020-03-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -15,856 320,767 -4.71 22.16 -351,386 7,108,550
2020-02-12 2020-02-11 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise 25,000 300,000 9.09 8.44 211,000 2,532,000
2020-02-12 2020-02-11 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 361,623 7.43 8.44 211,000 3,052,098
2020-02-12 2020-02-10 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise 25,000 325,000 8.33 8.44 211,000 2,743,000
2020-02-12 2020-02-10 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 336,623 -6.91 26.38 -659,498 8,880,081
2020-02-12 2020-02-10 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 336,623 -6.91 25.44 -636,052 8,564,396
2020-02-12 2020-02-10 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 361,623 7.43 8.44 211,000 3,052,098
2019-12-04 2019-12-02 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -14,976 336,623 -4.26 22.82 -341,703 7,680,626
2019-11-13 2019-11-12 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 350,000 -6.67 8.44 -211,000 2,954,000
2019-11-13 2019-11-12 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 351,599 -6.64 22.62 -565,520 7,953,451
2019-11-13 2019-11-12 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 376,599 7.11 8.44 211,000 3,178,496
2019-11-13 2019-11-11 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 375,000 -6.25 8.44 -211,000 3,165,000
2019-11-13 2019-11-11 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 351,599 -6.64 22.38 -559,412 7,867,555
2019-11-13 2019-11-11 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 376,599 7.11 8.44 211,000 3,178,496
2019-09-06 2019-09-05 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -14,835 400,000 -3.58 8.44 -125,207 3,376,000
2019-09-06 2019-09-05 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -14,835 351,599 -4.05 18.03 -267,496 6,339,822
2019-09-06 2019-09-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 14,835 366,434 4.22 8.44 125,207 3,092,703
2019-09-05 2019-09-04 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -25,000 414,835 -5.68 8.44 -211,000 3,501,207
2019-09-05 2019-09-04 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -25,000 351,599 -6.64 17.52 -437,948 6,159,276
2019-09-05 2019-09-04 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 25,000 376,599 7.11 8.44 211,000 3,178,496
2019-09-05 2019-09-03 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
M - Exercise -10,165 439,835 -2.26 8.44 -85,793 3,712,207
2019-09-05 2019-09-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -14,835 351,599 -4.05 17.03 -252,655 5,988,083
2019-09-05 2019-09-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale X -10,165 366,434 -2.70 17.03 -173,151 6,241,837
2019-09-05 2019-09-03 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 10,165 376,599 2.77 8.44 85,793 3,178,496
2019-08-20 2019-08-16 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -20,666 41,334 -33.33
2019-08-20 2019-08-16 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -11,156 366,434 -2.95 17.21 -191,995 6,306,329
2019-08-20 2019-08-16 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 20,666 377,590 5.79
2019-07-24 2019-07-22 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -17,333 17,334 -50.00
2019-07-24 2019-07-22 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -9,357 356,924 -2.55 15.81 -147,934 5,642,968
2019-07-24 2019-07-22 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 17,333 366,281 4.97
2019-06-12 2019-06-04 4 FORM FORMFACTOR INC
Restricted Stock Units
A - Award 62,000 62,000
2019-05-03 2019-05-02 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -10,000 10,000 -50.00
2019-05-03 2019-05-02 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -5,398 348,948 -1.52 16.93 -91,388 5,907,690
2019-05-03 2019-05-02 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 10,000 354,346 2.90
2019-04-29 2019-04-23 4 FORM FORMFACTOR INC
Performance Shares
M - Exercise -47,880 47,880 -50.00
2019-04-29 2019-04-23 4 FORM FORMFACTOR INC
Performance Shares
A - Award 47,880 47,880
2019-04-29 2019-04-23 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -25,846 344,346 -6.98 18.52 -478,668 6,377,288
2019-04-29 2019-04-23 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 47,880 370,192 14.86
2019-01-03 2018-08-16 4 FORM FORMFACTOR INC
Restricted Stock Units
A - Award 62,000 62,000
2018-07-24 2018-07-20 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -17,333 34,667 -33.33
2018-07-24 2018-07-20 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -9,357 322,312 -2.82 14.00 -130,998 4,512,368
2018-07-24 2018-07-20 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 17,333 331,669 5.51
2018-05-30 2018-05-28 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -6,667 0 -100.00
2018-05-30 2018-05-28 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -3,599 314,336 -1.13 13.40 -48,227 4,212,102
2018-05-30 2018-05-28 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 6,667 317,935 2.14
2018-05-04 2018-05-02 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -10,000 10,000 -50.00
2018-05-04 2018-05-02 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -5,398 311,268 -1.70 11.90 -64,236 3,704,089
2018-05-04 2018-05-02 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 10,000 316,666 3.26
2017-07-21 2017-07-20 4 FORM FORMFACTOR INC
Restricted Stock Units
A - Award 52,000 52,000
2017-05-31 2017-05-28 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -6,667 6,667 -50.00
2017-05-31 2017-05-28 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -3,772 306,666 -1.22 14.40 -54,317 4,415,990
2017-05-31 2017-05-28 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 6,667 310,438 2.19
2017-05-09 2017-05-05 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -18,334 0 -100.00
2017-05-09 2017-05-05 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -10,373 303,771 -3.30 14.25 -147,815 4,328,737
2017-05-09 2017-05-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 18,334 314,144 6.20
2017-05-03 2017-05-02 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -10,000 20,000 -33.33
2017-05-03 2017-05-02 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -5,658 295,810 -1.88 11.60 -65,633 3,431,396
2017-05-03 2017-05-02 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 10,000 301,468 3.43
2017-05-03 2017-05-01 4 FORM FORMFACTOR INC
Performance Shares
M - Exercise -41,200 0 -100.00
2017-05-03 2017-05-01 4 FORM FORMFACTOR INC
Performance Shares
A - Award 41,200 41,200
2017-05-03 2017-05-01 4 FORM FORMFACTOR INC
Common Stock
F - Taxes -23,309 291,468 -7.40 11.75 -273,881 3,424,749
2017-05-03 2017-05-01 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 41,200 314,777 15.06
2016-06-02 2016-05-31 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -6,666 13,334 -33.33
2016-06-02 2016-05-31 4 FORM FORMFACTOR INC
Common Stock
S - Sale -3,401 273,577 -1.23 7.33 -24,923 2,004,772
2016-06-02 2016-05-31 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 6,666 276,978 2.47
2016-05-09 2016-05-09 4 FORM FORMFACTOR INC
Common Stock
S - Sale -5,690 270,312 -2.06 6.80 -38,692 1,838,122
2016-05-09 2016-05-06 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -15,000 0 -100.00
2016-05-09 2016-05-06 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 15,000 276,002 5.75
2016-05-09 2016-05-06 4 FORM FORMFACTOR INC
Common Stock
S - Sale -7,007 261,002 -2.61 6.84 -47,928 1,785,254
2016-05-09 2016-05-05 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -18,333 18,334 -50.00
2016-05-09 2016-05-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 18,333 268,009 7.34
2016-05-03 2016-05-03 4 FORM FORMFACTOR INC
Common Stock
S - Sale -32,857 249,676 -11.63 7.14 -234,543 1,782,262
2016-05-03 2016-05-02 4 FORM FORMFACTOR INC
Performance Shares
M - Exercise -84,800 0 -100.00
2016-05-03 2016-05-02 4 FORM FORMFACTOR INC
Restricted Stock Units
A - Award 30,000 30,000
2016-05-03 2016-05-02 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 84,800 282,533 42.89
2016-04-08 2016-04-06 4 FORM FORMFACTOR INC
Performance Shares
A - Award 84,800 84,800
2015-11-09 2015-11-06 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -19,998 0 -100.00
2015-11-09 2015-11-06 4 FORM FORMFACTOR INC
Common Stock
S - Sale -10,883 197,733 -5.22 8.52 -92,767 1,685,476
2015-11-09 2015-11-06 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 19,998 208,616 10.60
2015-06-01 2015-05-28 4 FORM FORMFACTOR INC
Restricted Stock Units
A - Award 20,000 91,665 27.91
2015-05-08 2015-05-07 4 FORM FORMFACTOR INC
Common Stock
S - Sale -6,674 188,618 -3.42 8.28 -55,281 1,562,342
2015-05-08 2015-05-06 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -15,000 71,665 -17.31
2015-05-08 2015-05-06 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 15,000 195,292 8.32
2015-05-07 2015-05-05 4 FORM FORMFACTOR INC
Common Stock
S - Sale -605 168,961 -0.36 8.19 -4,957 1,384,297
2015-05-07 2015-05-05 4 FORM FORMFACTOR INC
Common Stock
S - Sale -28,560 169,566 -14.42 8.43 -240,698 1,429,068
2015-05-07 2015-05-04 4 FORM FORMFACTOR INC
Performance Shares
M - Exercise -75,000 50,000 -60.00
2015-05-07 2015-05-04 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 75,000 198,126 60.91
2015-05-07 2015-04-08 4 FORM FORMFACTOR INC
Performance Shares
A - Award 75,000 125,000 150.00
2015-05-07 2015-05-06 4 FORM FORMFACTOR INC
Common Stock
S - Sale -7,002 180,292 -3.74 8.25 -57,774 1,487,607
2015-05-07 2015-05-05 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -18,333 86,665 -17.46
2015-05-07 2015-05-05 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 18,333 187,294 10.85
2015-03-03 2014-11-07 4/A FORM FORMFACTOR INC
Common Stock
S - Sale -7,734 123,126 -5.91 8.71 -67,340 1,072,058
2015-02-11 2015-02-09 4 FORM FORMFACTOR INC
Non-Qualified Stock Option (right to buy)
A - Award 450,000 450,000
2014-11-10 2014-11-07 4 FORM FORMFACTOR INC
Common Stock
S - Sale -7,515 123,345 -5.74 8.71 -65,433 1,073,965
2014-11-10 2014-11-06 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -19,998 104,998 -16.00
2014-11-10 2014-11-06 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 19,998 130,860 18.04
2014-05-08 2014-05-07 4 FORM FORMFACTOR INC
Common Stock
S - Sale -5,852 110,862 -5.01 5.77 -33,795 640,217
2014-05-08 2014-05-06 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -15,000 124,996 -10.71
2014-05-08 2014-05-06 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 15,000 116,714 14.75
2014-05-07 2014-05-05 4 FORM FORMFACTOR INC
Restricted Stock Units
A - Award 55,000 139,996 64.71
2013-11-08 2013-11-07 4 FORM FORMFACTOR INC
Common Stock
S - Sale -7,677 101,714 -7.02 5.09 -39,090 517,907
2013-11-08 2013-11-06 4 FORM FORMFACTOR INC
Restricted Stock Units
M - Exercise -20,004 84,996 -19.05
2013-11-08 2013-11-06 4 FORM FORMFACTOR INC
Common Stock
M - Exercise 20,004 109,391 22.38
2013-10-25 3 FORM FORMFACTOR INC
Common Stock
89,387
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)