Insider trading

Period: 120 months Stock: PLMR Plan: Scheduled (10b5-1) × + Add filter Clear all
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When

Period

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

94 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.

94 decisions over 120 months
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.

94 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.

94 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.
94 decisions over 120 months Remove this filter
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
94 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.

94 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
21 Sep 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$472.44K 3,500 at 134.98
1.1%
Planned (10b5-1)
21 Aug 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 3×
$457.11K 3,500 at 130.60
1.1%
Planned (10b5-1)
21 Jul 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 4×
$480.42K 3,500 at 137.26
1.1%
Planned (10b5-1)
20 Jul 2026
Christianson Jon President
Sold on a plan
$418.50K 3,000 at 139.50
4.3%
Planned (10b5-1)
2 Jul 2026
Christianson Jon President
Sold on a plan 2×
$957.39K 6,863 at 139.50
9.4%
Planned (10b5-1)
22 Jun 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$395.36K 3,500 at 112.96
1.1%
Planned (10b5-1)
21 May 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$400.36K 3,500 at 114.39
1.0%
Planned (10b5-1)
21 Apr 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 3×
$457.68K 3,500 at 130.77
1.0%
Planned (10b5-1)
15 Apr 2026
Christianson Jon President
Sold on a plan 2×
$249.14K 1,937 at 128.62
2.9%
Planned (10b5-1)
7 Apr 2026
Christianson Jon President
Sold on a plan
$375.00K 3,000 at 125.00
4.6%
Planned (10b5-1)
23 Mar 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 4×
$422.03K 3,500 at 120.58
1.0%
Planned (10b5-1)
12 Feb 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 8×
$613.00K 5,000 at 122.60
1.4%
Planned (10b5-1)
21 Jan 2026
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 4×
$644.98K 5,000 at 129.00
1.4%
Planned (10b5-1)
23 Dec 2025
Christianson Jon President
Sold on a plan 4×
$235.89K 1,691 at 139.50
2.8%
Planned (10b5-1)
22 Dec 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 4×
$681.14K 5,000 at 136.23
1.4%
Planned (10b5-1)
21 Nov 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 4×
$614.31K 5,000 at 122.86
1.4%
Planned (10b5-1)
21 Oct 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 3×
$576.53K 5,000 at 115.31
1.3%
Planned (10b5-1)
22 Sep 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$580.09K 5,000 at 116.02
1.3%
Planned (10b5-1)
21 Aug 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 3×
$632.82K 5,000 at 126.56
1.3%
Planned (10b5-1)
20 Aug 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$60.80K 500 at 121.59
6.5%
Planned (10b5-1)
18 Aug 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$93.94K 782 at 120.13
9.3%
Planned (10b5-1)
21 Jul 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 5×
$700.51K 5,000 at 140.10
1.3%
Planned (10b5-1)
16 Jul 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$71.55K 500 at 143.10
6.7%
Planned (10b5-1)
23 Jun 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan
$790.69K 5,000 at 158.14
1.3%
Planned (10b5-1)
18 Jun 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$79.35K 500 at 158.69
6.3%
Planned (10b5-1)
21 May 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan
$809.80K 5,000 at 161.96
1.3%
Planned (10b5-1)
21 May 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$79.89K 500 at 159.77
5.9%
Planned (10b5-1)
18 May 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$124.36K 782 at 159.03
8.5%
Planned (10b5-1)
21 Apr 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 6×
$727.03K 5,000 at 145.41
1.2%
Planned (10b5-1)
16 Apr 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$76.52K 500 at 153.04
6.1%
Planned (10b5-1)
14 Apr 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$150.24K 1,000 at 150.24
10.9%
Planned (10b5-1)
9 Apr 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$144.00K 1,000 at 144.00
9.8%
Planned (10b5-1)
31 Mar 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$139.00K 1,000 at 139.00
9.0%
Planned (10b5-1)
21 Mar 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$648.58K 5,000 at 129.72
1.2%
Planned (10b5-1)
17 Mar 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$134.00K 1,000 at 134.00
8.2%
Planned (10b5-1)
14 Mar 2025
Christianson Jon President
Sold on a plan 4×
$2.35M 18,000 at 130.37
23.7%
Planned (10b5-1)
14 Mar 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan 4×
$647.48K 5,005 at 129.37
29.1%
Planned (10b5-1)
11 Mar 2025
Grant Angela L. Chief Legal Officer
Sold on a plan 2×
$298.32K 2,368 at 125.98
45.3%
Planned (10b5-1)
5 Mar 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 3×
$645.97K 5,000 at 129.19
1.2%
Planned (10b5-1)
19 Feb 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$126.96K 1,030 at 123.26
6.6%
Planned (10b5-1)
18 Feb 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$68.04K 552 at 123.26
3.4%
Planned (10b5-1)
13 Feb 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan 2×
$446.64K 3,804 at 117.41
20.6%
Planned (10b5-1)
22 Jan 2025
Uchida T Christopher Chief Financial Officer
Sold on a plan
$112.94K 1,030 at 109.65
6.0%
Planned (10b5-1)
21 Jan 2025
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 3×
$768.30K 7,000 at 109.76
1.7%
Planned (10b5-1)
23 Dec 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$721.25K 7,000 at 103.04
1.6%
Planned (10b5-1)
18 Dec 2024
Uchida T Christopher Chief Financial Officer
Sold on a plan
$114.18K 1,030 at 110.85
6.1%
Planned (10b5-1)
21 Nov 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$758.91K 7,000 at 108.42
1.6%
Planned (10b5-1)
20 Nov 2024
Uchida T Christopher Chief Financial Officer
Sold on a plan
$110.40K 1,030 at 107.18
5.7%
Planned (10b5-1)
18 Nov 2024
Uchida T Christopher Chief Financial Officer
Sold on a plan
$336.54K 3,137 at 107.28
13.9%
Planned (10b5-1)
18 Nov 2024
Uchida T Christopher Chief Financial Officer
Sold on a plan
$148.13K 1,359 at 109.00
7.0%
Planned (10b5-1)
Showing 1–50 of 94. Page 1 of 2 Older →