X0306 4 2013-02-01 0000936468 LOCKHEED MARTIN CORP LMT 0001524478 Possenriede Kenneth R 6801 ROCKLEDGE DRIVE BETHESDA MD 20817 1 Vice President & Treasurer Common Stock 2013-02-01 4 M 0 1650.0000 0 A 2734.4070 D Common Stock 2013-02-01 4 F 0 589.0000 87.2200 D 2145.4070 D Common Stock 504.5171 I Lockheed Martin Salaried Savings Plan Restricted Stock Units 2013-02-01 4 M 0 1650.0000 D 2013-02-01 Common Stock 1650.0000 0.0000 D Each restricted stock unit granted on February 1, 2010 was the economic equivalent of one share of LMT common stock. Disposition to the Issuer of shares to satisfy the reporting person's tax withholding obligation upon vesting of restricted stock units exempt under Rule 16(b)-3. End of period holdings include additional shares acquired through dividend reinvestment. Shares previously acquired under the Lockheed Martin Salaried Savings Plan exempt under Section 16(b) which will be settled upon the reporting person's retirement or termination of service, and additional shares acquired through dividend reinvestment. Kenneth R. Possenriede, By Matthew C. Dow, Attorney-in-fact 2013-02-05