Posner Brian S

SEC Form 4 insider trading activity

Posner Brian S has filed 7 SEC Form 4 filings (7 transaction rows) across 2 companies, including DYN, ACGL, with disclosures dating back to 2026. 7 of those filings fall inside the rolling window. Most recent filing: Jun 9, 2026.

Companies traded

Insider Buying

$157K

reported purchases (SEC code P)

Insider Selling

$93K

reported sales (SEC code S)

Companies

2

in the rolling window

Source
DYNPurchase$34KJun 9SEC ↗
DYNPurchase$44KJun 5SEC ↗
ACGLSale$59KJun 4SEC ↗
DYNPurchase$36KMay 28SEC ↗
DYNPurchase$43KMay 22SEC ↗
ACGLSale$34KMay 12SEC ↗