InsiderClue
Stocks · Technology · Semiconductors & Related Devices

FORMFACTOR INC

FORM Clue Score39
United States Fiscal year ends December CIK 0001039399 Results filed 28 Oct 2026
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What the insiders did Net selling

Individual transactions

79
Insider
Date
Role
Action
Shares
Price
Amount
Mike Slessor
14 Oct 2026
CEO
Sold on a plan
1,200
$125.92
$151.10K
Mike Slessor
14 Oct 2026
CEO
Sold on a plan
7,703
$125.36
$965.65K
Mike Slessor
14 Oct 2026
CEO
Sold on a plan
2,195
$124.23
$272.68K
Mike Slessor
16 Sep 2026
CEO
Sold on a plan
1,000
$105.80
$105.80K
Mike Slessor
16 Sep 2026
CEO
Sold on a plan
7,773
$105.12
$817.10K
Mike Slessor
16 Sep 2026
CEO
Sold on a plan
8,737
$104.26
$910.92K
Mike Slessor
14 Aug 2026
CEO
Sold on a plan
686
$133.33
$91.46K
Mike Slessor
14 Aug 2026
CEO
Sold on a plan
5,535
$132.50
$733.39K
Mike Slessor
14 Aug 2026
CEO
Sold on a plan
1,125
$131.65
$148.11K
Mike Slessor
14 Aug 2026
CEO
Sold on a plan
3,282
$130.54
$428.43K
Mike Slessor
14 Aug 2026
CEO
Sold on a plan
2,892
$129.55
$374.66K
Mike Slessor
14 Aug 2026
CEO
Sold on a plan
2,482
$128.72
$319.48K
Mike Slessor
15 Jul 2026
CEO
Sold on a plan
868
$121.30
$105.29K
Mike Slessor
15 Jul 2026
CEO
Sold on a plan
300
$120.58
$36.17K
Mike Slessor
15 Jul 2026
CEO
Sold on a plan
170
$119.08
$20.24K
Mike Slessor
15 Jul 2026
CEO
Sold on a plan
706
$118.21
$83.46K
Mike Slessor
15 Jul 2026
CEO
Sold on a plan
1,650
$117.39
$193.69K
Mike Slessor
15 Jul 2026
CEO
Sold on a plan
1,041
$116.56
$121.34K
Mike Slessor
10 Jun 2026
CEO
Sold on a plan
1,629
$123.37
$200.97K
Mike Slessor
10 Jun 2026
CEO
Sold on a plan
2,500
$122.63
$306.58K
Mike Slessor
10 Jun 2026
CEO
Sold on a plan
4,220
$121.72
$513.66K
Mike Slessor
10 Jun 2026
CEO
Sold on a plan
975
$121.00
$117.98K
Mike Slessor
10 Jun 2026
CEO
Sold on a plan
400
$119.46
$47.78K
Mike Slessor
10 Jun 2026
CEO
Sold on a plan
767
$119.00
$91.27K
Mike Slessor
10 Jun 2026
CEO
Sold on a plan
1,399
$117.70
$164.66K
Mike Slessor
13 May 2026
CEO
Sold on a plan
702
$136.15
$95.58K
Mike Slessor
13 May 2026
CEO
Sold on a plan
66
$135.73
$8.96K
Mike Slessor
13 May 2026
CEO
Sold on a plan
200
$132.63
$26.53K
Mike Slessor
13 May 2026
CEO
Sold on a plan
200
$130.57
$26.11K
Mike Slessor
13 May 2026
CEO
Sold on a plan
700
$129.33
$90.53K
Mike Slessor
13 May 2026
CEO
Sold on a plan
700
$128.52
$89.96K
Mike Slessor
13 May 2026
CEO
Sold on a plan
100
$127.47
$12.75K
Mike Slessor
13 May 2026
CEO
Sold on a plan
398
$126.59
$50.38K
Mike Slessor
13 May 2026
CEO
Sold on a plan
1,388
$125.58
$174.31K
Mike Slessor
13 May 2026
CEO
Sold on a plan
2,984
$124.71
$372.13K
Mike Slessor
13 May 2026
CEO
Sold on a plan
1,300
$123.72
$160.84K
Mike Slessor
13 May 2026
CEO
Sold on a plan
700
$122.84
$85.99K
Mike Slessor
15 Apr 2026
CEO
Sold on a plan
767
$129.22
$99.11K
Mike Slessor
15 Apr 2026
CEO
Sold on a plan
5,432
$128.56
$698.34K
Mike Slessor
15 Apr 2026
CEO
Sold on a plan
2,369
$127.65
$302.40K
Mike Slessor
15 Apr 2026
CEO
Sold on a plan
900
$126.58
$113.92K
Mike Slessor
15 Apr 2026
CEO
Sold on a plan
1,826
$125.24
$228.69K
Mike Slessor
18 Mar 2026
CEO
Sold on a plan
2,832
$95.73
$271.11K
Mike Slessor
18 Mar 2026
CEO
Sold on a plan
5,495
$95.21
$523.18K
Mike Slessor
18 Mar 2026
CEO
Sold on a plan
1,900
$94.10
$178.79K
Mike Slessor
18 Feb 2026
CEO
Sold on a plan
2,896
$94.79
$274.51K
Mike Slessor
18 Feb 2026
CEO
Sold on a plan
4,934
$93.97
$463.65K
Mike Slessor
18 Feb 2026
CEO
Sold on a plan
834
$92.85
$77.44K
Mike Slessor
15 Jan 2026
CEO
Sold on a plan
6,112
$77.24
$472.09K
Mike Slessor
15 Jan 2026
CEO
Sold on a plan
6,976
$76.43
$533.18K
Mike Slessor
6 Jan 2026
CEO
Sold on a plan
39,606
$65.00
$2.57M
Mike Slessor
17 Dec 2025
CEO
Sold on a plan
2,063
$56.82
$117.22K
Mike Slessor
17 Dec 2025
CEO
Sold on a plan
5,606
$56.19
$315.00K
Mike Slessor
19 Nov 2025
CEO
Sold on a plan
3,664
$50.60
$185.40K
Mike Slessor
19 Nov 2025
CEO
Sold on a plan
4,739
$49.65
$235.29K
Mike Slessor
1 Jul 2025
CEO
Sold on a plan
4,000
$34.03
$136.12K
Mike Slessor
2 Jun 2025
CEO
Sold on a plan
4,000
$29.83
$119.32K
Mike Slessor
1 May 2025
CEO
Sold on a plan
4,000
$31.72
$126.88K
Mike Slessor
1 Apr 2025
CEO
Sold on a plan
4,000
$28.24
$112.98K
Mike Slessor
3 Mar 2025
CEO
Sold on a plan
4,000
$33.05
$132.20K
Mike Slessor
3 Feb 2025
CEO
Sold on a plan
100
$39.53
$3.95K
Mike Slessor
3 Feb 2025
CEO
Sold on a plan
3,900
$38.97
$151.98K
Mike Slessor
2 Jan 2025
CEO
Sold on a plan
400
$45.01
$18.00K
Mike Slessor
2 Jan 2025
CEO
Sold on a plan
3,600
$44.38
$159.77K
Mike Slessor
2 Dec 2024
CEO
Sold on a plan
101
$41.17
$4.16K
Mike Slessor
2 Dec 2024
CEO
Sold on a plan
3,899
$40.57
$158.18K
Mike Slessor
1 Nov 2024
CEO
Sold on a plan
4,000
$38.81
$155.25K
Mike Slessor
1 Oct 2024
CEO
Sold on a plan
1,000
$46.00
$46.00K
Mike Slessor
1 Oct 2024
CEO
Sold on a plan
3,000
$45.04
$135.13K
Mike Slessor
3 Sep 2024
CEO
Sold on a plan
1,188
$47.17
$56.04K
Mike Slessor
3 Sep 2024
CEO
Sold on a plan
2,812
$45.94
$129.20K
Mike Slessor
1 Jul 2024
CEO
Sold on a plan
682
$60.57
$41.31K
Mike Slessor
1 Jul 2024
CEO
Sold on a plan
995
$59.24
$58.94K
Mike Slessor
1 Jul 2024
CEO
Sold on a plan
2,323
$58.44
$135.75K
Mike Slessor
3 Jun 2024
CEO
Sold on a plan
1,230
$54.83
$67.45K
Mike Slessor
3 Jun 2024
CEO
Sold on a plan
2,770
$54.17
$150.05K
Mike Slessor
1 May 2024
CEO
Sold on a plan
4,000
$43.75
$174.98K
Mike Slessor
1 Apr 2024
CEO
Sold on a plan
4,000
$45.94
$183.75K
Mike Slessor
1 Mar 2024
CEO
Sold on a plan
4,000
$43.38
$173.52K
Show all 236 transactions →

What was left out

Form 4 filings counted 339
Amendments (4/A) skipped 3
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 79
Sales straight out of an exercise 59
Sales at will 97
Transactions with no price 0
Shares from compensation/vesting 4,385,992
Sales filed before the plan box existed 53
History held since 5 Oct 2006