Insider trading

Period: 120 months Stock: PLAB Role: Directors × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

133 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

133 decisions over 120 months Remove this filter
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

133 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

133 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
133 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
133 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

133 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
29 Sep 2026
Lee Kang Jyh Director
Sold at will
$307.50K 10,000 at 30.75
2.9%
Not planned
24 Sep 2026
Lee Kang Jyh Director
Sold at will
$221.25K 7,500 at 29.50
2.1%
Not planned
22 Sep 2026
Lee Kang Jyh Director
Sold at will
$297.00K 10,000 at 29.70
2.7%
Not planned
16 Apr 2026
Lee Kang Jyh Director
Sold at will 2×
$918.50K 20,000 at 45.93
5.3%
Not planned
15 Apr 2026
Lee Kang Jyh Director
Sold at will
$451.00K 10,000 at 45.10
2.6%
Not planned
14 Apr 2026
MACRICOSTAS CONSTANTINE S Director · indirect
Sold at will
$2.27M 50,000 at 45.35
100%
Sold half or more
13 Apr 2026
Lee Kang Jyh Director
Sold at will
$225.00K 5,000 at 45.00
1.3%
Not planned
9 Apr 2026
Lee Kang Jyh Director
Sold at will
$220.00K 5,000 at 44.00
1.3%
Not planned
8 Apr 2026
Lee Kang Jyh Director
Sold at will
$216.35K 5,000 at 43.27
1.3%
Not planned
6 Apr 2026
Lee Kang Jyh Director
Sold at will
$202.65K 5,000 at 40.53
1.3%
Not planned
1 Apr 2026
TYSON MITCHELL G Director
Sold at will
$423.10K 10,000 at 42.31
23.1%
Not planned
1 Apr 2026
Lee Kang Jyh Director
Sold at will
$210.00K 5,000 at 42.00
1.3%
Not planned
26 Mar 2026
Lee Kang Jyh Director
Sold at will
$204.00K 5,000 at 40.80
1.3%
Not planned
23 Mar 2026
Lee Kang Jyh Director
Sold at will
$390.00K 10,000 at 39.00
2.5%
Not planned
19 Mar 2026
Lee Kang Jyh Director
Sold at will
$358.00K 10,000 at 35.80
2.4%
Not planned
16 Jan 2026
Lee Kang Jyh Director
Sold at will
$345.10K 10,000 at 34.51
2.4%
Not planned
15 Jan 2026
Lee Kang Jyh Director
Sold at will
$341.30K 10,000 at 34.13
2.3%
Not planned
13 Jan 2026
Lee Kang Jyh Director
Sold at will
$344.20K 10,000 at 34.42
2.3%
Not planned
12 Jan 2026
Lee Kang Jyh Director
Sold at will
$330.50K 10,000 at 33.05
2.2%
Not planned
7 Jan 2026
Lee Kang Jyh Director
Sold at will
$348.30K 10,000 at 34.83
2.2%
Not planned
6 Jan 2026
Paladino Mary Director
Sold at will
$394.99K 11,250 at 35.11
32.1%
Not planned
6 Jan 2026
Lee Kang Jyh Director
Sold at will
$354.10K 10,000 at 35.41
2.1%
Not planned
6 Jan 2026
TYSON MITCHELL G Director
Sold at will
$176.05K 5,000 at 35.21
10.4%
Not planned
5 Jan 2026
Lee Kang Jyh Director
Sold at will
$339.00K 10,000 at 33.90
2.1%
Not planned
2 Jan 2026
Lee Kang Jyh Director
Sold at will
$293.48K 8,750 at 33.54
1.8%
Not planned
22 Dec 2025
Lee Kang Jyh Director
Sold at will
$300.21K 8,750 at 34.31
1.8%
Not planned
15 Dec 2025
Lee Kang Jyh Director
Sold at will
$729.00K 20,000 at 36.45
3.9%
Not planned
12 Dec 2025
Lee Kang Jyh Director
Sold at will
$770.60K 20,000 at 38.53
3.9%
Not planned
12 Dec 2025
TYSON MITCHELL G Director
Sold at will
$180.85K 5,000 at 36.17
9.6%
Not planned
7 Oct 2025
TYSON MITCHELL G Director
Sold at will
$125.20K 5,000 at 25.04
8.8%
Not planned
6 Oct 2025
Lee Kang Jyh Director
Sold at will
$253.30K 10,000 at 25.33
1.9%
Not planned
2 Oct 2025
Paladino Mary Director
Sold at will
$1.03M 42,750 at 24.00
55.8%
Sold half or more
29 Aug 2025
Lee Kang Jyh Director
Sold at will
$203.00K 8,750 at 23.20
1.6%
Not planned
10 Jul 2025
TYSON MITCHELL G Director
Sold at will
$299.55K 15,000 at 19.97
20.9%
Not planned
2 Jul 2025
MACRICOSTAS CONSTANTINE S Director · indirect
Sold at will
$595.90K 29,500 at 20.20
100%
Sold half or more
27 Jun 2025
Garcia David A. Director
Bought
$50.35K 2,650 at 19.00
35.1%
First buy on file
20 Jun 2025
Lee Kang Jyh Director
Sold at will
$89.59K 4,882 at 18.35
0.9%
Not planned
18 Jun 2025
Lee Kang Jyh Director
Sold at will
$517.34K 28,118 at 18.40
5.0%
Not planned
17 Apr 2025
FIEDEROWICZ WALTER M Former Director
Sold at will
$88.97K 5,000 at 17.79
50.0%
Sold half or more
15 Apr 2025
FIEDEROWICZ WALTER M Former Director
Sold at will
$134.89K 7,548 at 17.87
43.0%
Not planned
9 Apr 2025
FIEDEROWICZ WALTER M Former Director
Sold at will
$132.16K 7,000 at 18.88
28.5%
Not planned
3 Apr 2025
FIEDEROWICZ WALTER M Former Director
Sold at will
$95.80K 5,000 at 19.16
16.9%
Not planned
25 Mar 2025
Sold at will
$216.33K 10,000 at 21.63
25.3%
Not planned
3 Jan 2025
Sold at will
$241.30K 10,000 at 24.13
23.8%
Not planned
24 Dec 2024
Sold at will
$240.10K 10,000 at 24.01
16.7%
Not planned
20 Dec 2024
LEWIS ADAM M Director
Sold at will
$476.17K 19,750 at 24.11
47.0%
Not planned
19 Dec 2024
TYSON MITCHELL G Director
Sold at will
$501.20K 20,000 at 25.06
23.2%
Not planned
3 Jan 2023
TYSON MITCHELL G Director
Sold, plan not stated
$34.66K 2,000 at 17.33
3.4%
1 Dec 2022
TYSON MITCHELL G Director
Sold, plan not stated
$37.88K 2,000 at 18.94
3.3%
1 Nov 2022
TYSON MITCHELL G Director
Sold, plan not stated
$33.06K 2,000 at 16.53
3.2%
Showing 1–50 of 133. Page 1 of 3 Older →