X0303 4 2010-07-06 0 0000020232 CHYRON CORP CHYR 0001304912 Prince Kevin 5 HUB DRIVE MELVILLE NY 11747 0 1 0 0 SVP & COO Common Stock 2010-07-06 4 M 0 2413 0 A 6608 D Common Stock 2010-07-07 4 S 0 971 1.7295 D 5637 D Restricted Stock Units 2010-07-06 4 M 0 2413 0 D 2010-07-06 2010-07-06 Common Stock 2413 46719 D Code M - 2,413 shares of Chyron common stock in Table I were acquired upon settlement of Restricted Stock Units reported in Table II. Code S - Sale of 971 shares to cover payroll and income tax withholding on compensation equal to value of 2,413 shares received upon settlement of RSUs. 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. /s/ Kevin Prince 2010-07-07