X0306 4 2023-02-15 0000936468 LOCKHEED MARTIN CORP LMT 0001353825 Donovan John 6801 ROCKLEDGE DRIVE BETHESDA MD 20817 1 Phantom Stock Units 2023-02-15 4 A 0 353.7908 A Common Stock 353.7908 866.9105 I Lockheed Martin Directors Equity Plan Phantom Stock Units Common Stock 448.4267 448.4267 I Lockheed Martin Directors Deferred Comp Plan Each share of phantom stock is the economic equivalent of one share of Lockheed Martin Corporation common stock. In accordance with the Lockheed Martin Corporation Amended and Restated Directors Equity Plan, each non-employee director received an award of phantom stock units, which award is exempt under Rule 16b-3. The phantom stock units were acquired at $480.51 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date or, if earlier, upon retirement, death, disability or change in control. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's retirement or termination of service, except that non-employee directors who have satisfied our stock ownership guidelines may elect to have the payment of awards (together with any dividend equivalents thereon) made on the first business day of April following vesting of the award. The information pertains to previously acquired phantom stock units under the Lockheed Martin Corporation Directors Deferred Compensation Plan exempt under Section 16(b) which will be settled upon the Reporting Person's retirement or termination of service. John M. Donovan, by Kerri R. Morey, Attorney-in-fact 2023-02-17