X0609 4 2026-10-09 0 0001321655 Palantir Technologies Inc. PLTR 0001930526 Woersching Eric H. false C/O PALANTIR TECHNOLOGIES INC. 19505 BISCAYNE BOULEVARD, SUITE 2350 AVENTURA FL 33180 1 0 0 0 1 Class A Common Stock 2026-10-09 4 S 0 1000 205 D 3465 D The Reporting Person sold shares of Class A Common Stock in the open market pursuant to a Rule 10b5-1 trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c), entered into on May 27, 2026. This Form 4 has been compiled based on applicable requirements to reflect the specific transactions described herein and is not intended to disclose or describe all shares and/or other equity securities owned or beneficially held by the Reporting Person. For additional details regarding the Reporting Person's overall stock and equity holdings, please see the Issuer's Proxy Statement filed with the Securities and Exchange Commission on April 24, 2026, including under the heading "Security Ownership Of Certain Beneficial Owners And Management" (subject to the definitions, explanations, and time periods described therein). /s/ Devon Klein, under power of attorney 2026-10-14