X0306 4 2017-04-21 1 0001060523 CARDINAL FINANCIAL CORP CFNL 0001253653 CLINEBURG BERNARD H 8270 GREENSBORO DRIVE SUITE 500 MCLEAN VA 22102 1 1 0 0 Executive Chairman Common Stock 2017-04-21 4 D 0 329423 D 0 D Stock Option 19.18 2017-04-21 4 D 0 1667 D 2026-02-16 Common Stock 1667 0 D Effective April 21, 2017, pursuant to an Agreement and Plan of Reorganization, dated as of August 17, 2016 (the "Merger Agreement"), by and among United Bankshares, Inc. ("United"), its subsidiary UBV Holding Company, LLC ("UBV") and Cardinal Financial Corporation ("Cardinal"), Cardinal merged with and into UBV, with UBV as the surviving company (the "Merger"). In the Merger, each share of Cardinal's common stock converted into 0.71 shares of United's common stock. The stock options vested as follows: 1/3 on February 16, 2016 and 1/3 on the anniversary date of the grant for two years. This option was assumed by United in the Merger, fully vested, and replaced with an option to purchase shares of United common stock equal to the number of shares of Cardinal common stock subject to such option multiplied by 0.71, at an exercise price equal to the exercise price of such option divided by 0.71. /s/ Jennifer L. Deacon, as Attorney in Fact 2017-04-26