Brian S Posner

Insider

Director

Trades at: DYN· ACGL

30D 90D 1Y

Net shares · 90d

+6.0K

11.0K buy · 5.0K sell

Net value · 90d

$97.7K

$191.0K in · $93.3K out

Sentiment · 90d

Net buying

67% buying · 33% selling

Open-market trades · 90d

11.0K buy · 5.0K 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

DYN Buy·P
Jun 8, 26

Director

$33.9K

2.0K sh · $16.94

Own +9%
ACGL Sell·S
Jun 3, 26

Director

$59.0K

3.0K sh · $19.66

Own -100%
DYN Buy·P
Jun 3, 26

Director

$43.7K

2.5K sh · $17.48

Own +12%
DYN Buy·P
May 26, 26

Director

$36.4K

2.0K sh · $18.21

Own +11%
DYN Buy·P
May 20, 26

Director

$42.8K

2.5K sh · $17.12

Own +16%
ACGL Sell·S
May 11, 26

Director

$34.3K

2.0K sh · $17.14

Own -100%
DYN Buy·P
Mar 30, 26

Director

$34.2K

2.0K sh · $17.08

Own +15%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Jun 8, 2026	DYN	Director	Buy P	2.0K	+9%	$16.94	$33.9K
Jun 3, 2026	ACGL	Director	Sell S	3.0K	-100%	$19.66	$59.0K
Jun 3, 2026	DYN	Director	Buy P	2.5K	+12%	$17.48	$43.7K
May 26, 2026	DYN	Director	Buy P	2.0K	+11%	$18.21	$36.4K
May 20, 2026	DYN	Director	Buy P	2.5K	+16%	$17.12	$42.8K
May 11, 2026	ACGL	Director	Sell S	2.0K	-100%	$17.14	$34.3K
Mar 30, 2026	DYN	Director	Buy P	2.0K	+15%	$17.08	$34.2K

About Brian S Posner

This profile aggregates every SEC Form 4 insider transaction reported by Brian S Posner 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.