Mac Armstrong

Insider

CEO and Chairman

Trades at: PLMR

30D 90D 1Y

Net shares · 90d

-10.2K

0 buy · 10.2K sell

Net value · 90d

-$1.3M

$0 in · $1.3M out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 10.2K sell

Net buy / sell volume (all companies)

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions · open-market

Include grants & non-market

PLMR Sell·S
May 21, 26

CEO and Chairman · 10b5-1

$249.1K

2.2K sh · $114.67

Own -1%
PLMR Sell·S
May 21, 26

CEO and Chairman · 10b5-1

$151.3K

1.3K sh · $113.93

Own -0%
PLMR Sell·S
Apr 21, 26

CEO and Chairman · 10b5-1

$158.1K

1.2K sh · $131.73

Own -0%
PLMR Sell·S
Apr 21, 26

CEO and Chairman · 10b5-1

$88.9K

678 sh · $131.11

Own -0%
PLMR Sell·S
Apr 21, 26

CEO and Chairman · 10b5-1

$210.7K

1.6K sh · $129.91

Own -0%
PLMR Sell·S
Apr 15, 26

CEO and Chairman

$413.9K

3.2K sh · $129.46

Own -3%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 21, 2026	PLMR	CEO and Chairman	Sell S	2.2K	-1%	$114.67	$249.1K
May 21, 2026	PLMR	CEO and Chairman	Sell S	1.3K	-0%	$113.93	$151.3K
Apr 21, 2026	PLMR	CEO and Chairman	Sell S	1.2K	-0%	$131.73	$158.1K
Apr 21, 2026	PLMR	CEO and Chairman	Sell S	678	-0%	$131.11	$88.9K
Apr 21, 2026	PLMR	CEO and Chairman	Sell S	1.6K	-0%	$129.91	$210.7K
Apr 15, 2026	PLMR	CEO and Chairman	Sell S	3.2K	-3%	$129.46	$413.9K

About Mac Armstrong

This profile aggregates every SEC Form 4 insider transaction reported by Mac Armstrong across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.