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Detailed Insider History for:
FORMFACTOR INC: FORM
Price: 5/22/26 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$128.99 $159.09 $26.08 $10,055 78 1,800 0.0% 5.6% 98.34% 0.72%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Electronic And Other Electrical Equipment And Components, Except Computer Equipment Semiconductors & Related Devices
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
OBREGON JIMENEZ REBECA
DIR
S
$484,146
3,828
---
5/21/26
---
$126.47
7,875
-32.7
D
---
5/22/26 - 7:04:22 pm
2
1y
1
100%
-48%
3
WHITE BRIAN C
DIR
S
$409,500
3,250
---
5/20/26
---
$126.00
8,653
-27.3
D
---
5/21/26 - 5:51:19 pm
3
1y
34
41%
12%
4
ST DENNIS THOMAS
DIR
S
$115,840
1,000
---
5/19/26
---
$115.84
31,873
-3.0
D
---
5/21/26 - 5:48:34 pm
4
    
 
ST DENNIS THOMAS
DIR
JB
---
1,347
---
5/15/26
---
---
32,873
4.3
D
R
5/19/26 - 7:10:15 pm
5
    
 
OBREGON JIMENEZ REBECA
DIR
JB
---
1,347
---
5/15/26
---
---
11,703
13.0
D
R
5/19/26 - 7:09:44 pm
6
    
 
RHODES SHERI
DIR
JB
---
1,347
---
5/15/26
---
---
11,703
13.0
D
R
5/19/26 - 7:09:04 pm
7
    
 
STEVEN WAISS KELLEY
DIR
JB
---
1,347
---
5/15/26
---
---
26,526
5.3
D
R
5/19/26 - 7:08:24 pm
8
    
 
TITINGER JORGE
DIR
JB
---
1,347
---
5/15/26
---
---
14,836
10.0
D
R
5/19/26 - 7:07:48 pm
9
    
 
WHITE BRIAN C
DIR
JB
---
1,347
---
5/15/26
---
---
11,903
12.8
D
R
5/19/26 - 7:07:05 pm
10
1y
11
27%
31%
3
STEVEN WAISS KELLEY
DIR
S
$678,241
5,400
---
5/15/26
---
$125.60
25,179
-17.7
D
---
5/15/26 - 6:22:15 pm
11
1y
1
100%
-35%
8
TITINGER JORGE
DIR
S
$516,299
4,009
---
5/13/26
---
$128.78
13,489
-22.9
D
---
5/15/26 - 6:29:36 pm
12
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$1,194,064
9,438
---
5/13/26
$122.84
$136.15
447,037
-2.1
D
10b
5/14/26 - 5:32:14 pm
13
    
 
SLESSOR MIKE
CEO,DIR
JS
$475,708
3,288
---
5/7/26
---
$144.68
456,475
-0.7
D
R
5/8/26 - 4:52:26 pm
14
    
 
SLESSOR MIKE
CEO,DIR
JB
---
5,908
---
5/7/26
---
---
459,763
1.3
D
R
5/8/26 - 4:52:26 pm
15
    
 
SLESSOR MIKE
CEO,DIR
JS
$794,656
5,385
5/5/26
5/6/26
$145.00
$149.12
451,181
-1.2
D
R
5/7/26 - 6:38:24 pm
16
    
 
SLESSOR MIKE
CEO,DIR
JB
---
9,675
5/5/26
5/6/26
---
---
457,212
2.2
D
R
5/7/26 - 6:38:24 pm
17
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
JS
$59,709
404
5/5/26
5/6/26
$145.00
$149.12
11,531
-3.4
D
R
5/7/26 - 6:36:49 pm
18
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
JB
---
1,620
5/5/26
5/6/26
---
---
12,630
14.7
D
R
5/7/26 - 6:36:49 pm
19
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$1,099,853
8,568
---
4/15/26
$127.65
$129.22
449,565
-1.9
D
10b
4/15/26 - 4:35:10 pm
20
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$342,610
2,726
---
4/15/26
$125.24
$126.58
458,133
-0.6
D
10b
4/15/26 - 4:35:10 pm
21
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$973,076
10,227
---
3/18/26
$94.10
$95.73
460,859
-2.2
D
10b
3/18/26 - 5:56:02 pm
22
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
AS
$313,034
3,462
---
3/5/26
---
$90.42
11,140
-23.7
D
10b
3/6/26 - 6:10:46 pm
23
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
JS
$19,242
193
---
3/2/26
---
$99.70
14,602
-1.3
D
R
3/3/26 - 6:17:11 pm
24
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
JB
---
773
---
3/2/26
---
---
14,795
5.5
D
R
3/3/26 - 6:17:11 pm
25
1y
1
100%
-48%
3
WHITE BRIAN C
DIR
S
$230,023
2,300
---
2/24/26
---
$100.01
10,556
-17.9
D
---
2/25/26 - 4:21:51 pm
26
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$815,597
8,664
---
2/18/26
$92.85
$94.79
471,086
-1.8
D
10b
2/18/26 - 7:41:14 pm
27
3m
1
0%
41%
2
BREWER KEVIN J
DIR
S
$288,600
3,000
---
2/11/26
---
$96.20
8,105
-27.0
D
---
2/12/26 - 6:26:59 pm
28
1y
34
41%
12%
4
ST DENNIS THOMAS
DIR
S
$697,355
7,431
---
2/10/26
$93.71
$94.24
31,526
-19.1
D
---
2/11/26 - 5:58:27 pm
29
1y
3
33%
-5%
2
RHODES SHERI
DIR
S
$706,973
7,634
---
2/10/26
---
$92.61
10,356
-42.4
D
---
2/11/26 - 5:48:59 pm
30
1y
11
27%
31%
3
STEVEN WAISS KELLEY
DIR
S
$206,139
2,200
---
2/10/26
---
$93.70
30,579
-6.7
D
---
2/11/26 - 5:45:45 pm
31
    
 
SLESSOR MIKE
CEO,DIR
JS
$311,965
3,288
---
2/9/26
---
$94.88
479,750
-0.7
D
R
2/11/26 - 6:21:26 pm
32
    
 
SLESSOR MIKE
CEO,DIR
JB
---
5,908
---
2/9/26
---
---
483,038
1.2
D
R
2/11/26 - 6:21:26 pm
33
    
 
OBREGON JIMENEZ REBECA
DIR
S
$265,422
2,770
---
2/9/26
---
$95.82
10,356
-21.1
D
---
2/10/26 - 5:21:36 pm
34
1y
1
100%
-48%
3
WHITE BRIAN C
DIR
S
$500,225
5,500
---
2/9/26
---
$90.95
12,856
-30.0
D
---
2/10/26 - 5:18:05 pm
35
1y
1
100%
-35%
8
TITINGER JORGE
DIR
S
$177,680
2,000
---
2/9/26
---
$88.84
17,498
-10.3
D
---
2/10/26 - 5:16:43 pm
36
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
JS
$43,924
498
2/5/26
2/6/26
$83.87
$90.29
13,259
-3.6
D
R
2/9/26 - 6:49:35 pm
37
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
JB
---
1,620
2/5/26
2/6/26
---
---
14,358
12.7
D
R
2/9/26 - 6:49:35 pm
38
    
 
SLESSOR MIKE
CEO,DIR
JS
$478,811
5,452
2/5/26
2/6/26
$83.87
$90.29
474,456
-1.1
D
R
2/9/26 - 6:46:06 pm
39
    
 
SLESSOR MIKE
CEO,DIR
JB
---
9,675
2/5/26
2/6/26
---
---
480,487
2.1
D
R
2/9/26 - 6:46:06 pm
40
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$1,005,267
13,088
---
1/15/26
$76.43
$77.24
472,907
-2.7
D
10b
1/15/26 - 5:39:27 pm
41
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$2,574,390
39,606
---
1/6/26
---
$65.00
485,995
-7.5
D
10b
1/6/26 - 7:13:07 pm
42
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$432,221
7,669
---
12/17/25
$56.19
$56.82
525,601
-1.4
D
10b
12/17/25 - 6:42:03 pm
43
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
JS
$10,816
193
---
12/2/25
---
$56.04
12,274
-1.5
D
R
12/3/25 - 5:01:20 pm
44
    
 
MCKINNIS ARIC BRENDAN
CFO,VP
JB
---
773
---
12/2/25
---
---
12,467
6.6
D
R
12/3/25 - 5:01:20 pm
45
1y
11
27%
31%
3
STEVEN WAISS KELLEY
DIR
S
$151,106
2,700
---
12/2/25
---
$55.97
32,779
-7.6
D
---
12/2/25 - 4:43:58 pm
46
1y
44
34%
40%
1
SLESSOR MIKE
CEO,DIR
AS
$420,690
8,403
---
11/19/25
$49.65
$50.60
533,270
-1.6
D
10b
11/19/25 - 8:54:02 pm
47
1y
34
41%
12%
4
ST DENNIS THOMAS
DIR
S
$99,693
2,000
---
11/17/25
---
$49.85
38,957
-4.9
D
---
11/17/25 - 8:05:57 pm
48
    
 
SLESSOR MIKE
CEO,DIR
JS
$171,485
3,282
---
11/7/25
---
$52.25
541,673
-0.6
D
R
11/10/25 - 6:51:10 pm
49
    
 
SLESSOR MIKE
CEO,DIR
JB
---
5,908
---
11/7/25
---
---
544,955
1.1
D
R
11/10/25 - 6:51:10 pm
50
    
 
SLESSOR MIKE
CEO,DIR
JS
$293,795
5,376
11/5/25
11/6/25
---
$54.22
536,367
-1.0
D
R
11/7/25 - 4:22:58 pm
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