Insider trading

Period: 120 months Stock: PLMR Role: CEO × + Add filter Clear all
Views & alerts

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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.

80 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.

80 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.

80 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.

80 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.
80 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
80 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.

80 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)
15 Jul 2026
Armstrong Mac CEO and Chairman
Sold at will 2×
$8.00M 60,741 at 131.66
36.6%
Not planned
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
Armstrong Mac CEO and Chairman
Sold at will
$413.88K 3,197 at 129.46
3.0%
Not planned
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)
31 Jan 2026
Armstrong Mac CEO and Chairman
Sold at will
$268.44K 2,205 at 121.74
2.2%
Not planned
29 Jan 2026
Armstrong Mac CEO and Chairman
Sold at will 2×
$658.91K 5,399 at 122.04
5.4%
Not planned
28 Jan 2026
Armstrong Mac CEO and Chairman
Sold at will
$1.38M 11,484 at 119.88
11.1%
Not planned
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)
15 Jan 2026
Armstrong Mac CEO and Chairman
Sold at will
$300.30K 2,310 at 130.00
2.8%
Not planned
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)
15 Oct 2025
Armstrong Mac CEO and Chairman
Sold at will
$373.62K 3,218 at 116.10
4.0%
Not planned
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)
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)
15 Jul 2025
Armstrong Mac CEO and Chairman
Sold at will
$456.63K 3,191 at 143.10
4.2%
Not planned
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)
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 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)
15 Apr 2025
Armstrong Mac CEO and Chairman
Sold at will
$490.04K 3,202 at 153.04
4.4%
Not planned
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)
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)
31 Jan 2025
Armstrong Mac CEO and Chairman
Sold at will
$233.77K 2,237 at 104.50
3.2%
Not planned
29 Jan 2025
Armstrong Mac CEO and Chairman
Sold at will
$264.78K 2,444 at 108.34
3.6%
Not planned
26 Jan 2025
Armstrong Mac CEO and Chairman
Sold at will
$283.82K 2,791 at 101.69
4.3%
Not planned
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)
15 Jan 2025
Armstrong Mac CEO and Chairman
Sold at will
$344.64K 3,154 at 109.27
5.0%
Not planned
1 Jan 2025
Armstrong Mac CEO and Chairman
Sold at will
$441.44K 4,170 at 105.86
6.8%
Not planned
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)
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)
21 Oct 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$673.98K 7,000 at 96.28
1.6%
Planned (10b5-1)
15 Oct 2024
Armstrong Mac CEO and Chairman
Sold at will
$312.80K 3,185 at 98.21
6.0%
Not planned
23 Sep 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$668.42K 7,000 at 95.49
1.6%
Planned (10b5-1)
21 Aug 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$658.70K 7,000 at 94.10
1.5%
Planned (10b5-1)
18 Jul 2024
Armstrong Mac CEO and Chairman
Sold on a plan 4×
$1.11M 12,227 at 91.08
20.6%
Planned (10b5-1)
15 Jul 2024
Armstrong Mac CEO and Chairman
Sold at will
$1.13M 12,773 at 88.19
17.7%
Not planned
21 Jun 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 3×
$549.60K 7,000 at 78.51
1.5%
Planned (10b5-1)
21 May 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$579.86K 7,000 at 82.84
1.5%
Planned (10b5-1)
22 Apr 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 3×
$560.24K 7,000 at 80.03
1.5%
Planned (10b5-1)
21 Mar 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$578.32K 7,000 at 82.62
1.5%
Planned (10b5-1)
29 Feb 2024
Armstrong Mac CEO and Chairman · indirect
Sold on a plan 2×
$530.27K 7,000 at 75.75
1.4%
Planned (10b5-1)
31 Jan 2024
Armstrong Mac CEO and Chairman
Sold at will
$91.21K 1,541 at 59.19
3.2%
Not planned
27 Jan 2024
Armstrong Mac CEO and Chairman
Sold at will
$57.24K 952 at 60.13
2.1%
Not planned
Showing 1–50 of 80. Page 1 of 2 Older →