X0508 4 2026-02-13 0000936468 LOCKHEED MARTIN CORP LMT 0001452775 Yarrington Patricia E 6801 ROCKLEDGE DRIVE BETHESDA MD 20817 1 0 Phantom Stock Units 2026-02-13 4 A 0 260.5044 A Common Stock 260.5044 2228.0546 I Lockheed Martin Directors Equity Plan Phantom stock units convert to common stock on a one-for-one basis. 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 $652.58 per share and vest 50% on June 30 following the award date and 50% on December 31 following the award date. All unvested awards will vest in full upon retirement due to the age limitation in the bylaws, death, disability or change in control, or one-third upon failure to stand for reelection. Settlement in cash or stock (as elected by the director) will occur upon the Reporting Person's 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. Holdings as of reportable transaction date include additional acquisitions through dividend reinvestment. Exhibits 24, Power of Attorney and Substitute Power of Attorney Patricia E. Yarrington, by Lynda M. Noggle, Attorney-in-fact 2026-02-18