Robert D. Isom Jr, CEO and President of American Airlines Group Inc. (AAL -3.26%), disposed of over 335,000 shares on Sept. 20, accordig to SEC Form 4 filingTransaction summaryMetricValueTransaction value$4.3 millionShares sold335,199Post-transaction shares (directly held)3,459,080Post-transaction value$44.8 millionTransaction value and post-transaction value based on SEC Form 4 weighted average sale price ($12.96).Company OverviewMetricValueShare Price (as of Sept. 21 market close)$13.57Market Capitalizati ...