X0306 4 2013-05-20 0 0000020232 CHYRON CORP CHYR 0001254333 KIELISZAK JERRY CHYRON CORP. 5 HUB DRIVE MELVILLE NY 11747 0 1 0 0 SVP & CFO Common Stock 2013-05-20 4 M 0 8333 0 A 44358 D Common Stock 2013-05-20 4 F 0 3522 1.44 D 40836 D Common Stock 24438 I In 401(k) Plan Restricted Stock Units 2013-05-20 4 M 0 8333 0 D 2013-05-20 2013-05-20 Common Stock 8333 0 D Code M - 8,333 shares of Chyron common stock in Table I were acquired upon settlement of Restricted Stock Units reported in Table II. Code F - Represents shares withheld to satisfy tax withholding obligation upon the vesting on May 20, 2013 of 8,333 restricted stock units awarded to the reporting person on May 26, 2010. This award includes a provision for the withholding of shares to pay the withholding taxes due on the vesting date. Each Restricted Stock Unit represents a contingent right to receive one share of Chyron common stock on its vesting date at a zero exercise price for the award granted on May 26, 2010. /s/ Jerry Kieliszak 2013-05-21