X0508 4 2026-02-10 0 0001451809 SITIME Corp SITM 0002014208 Ahamad Samsheer 5451 PATRICK HENRY DR. SANTA CLARA CA 95054 0 1 0 0 See Remarks 0 Common Stock 2026-02-10 4 A 0 1801 0 A 53512 D Common Stock 2026-02-10 4 A 0 3070 0 A 56582 D Common Stock 2026-02-10 4 A 0 2728 0 A 59310 D Common Stock 2026-02-10 4 A 0 2728 0 A 62038 D Common Stock 2026-02-11 4 S 0 9100 441.47 D 52938 D Common Stock 2026-02-11 4 G 0 900 0 D 52038 D Restricted stock unit award under the Executive Bonus and Retention Plan vesting 50% of the shares on May 20, 2026 and 50% on August 20, 2026. Additional shares being granted upon the achievement of performance criteria for performance-based restricted stock units (PRSUs) initially granted on March 15, 2024. The total 6,140 shares granted under this PRSU award will vest on February 20, 2027. Restricted stock unit award vesting 6.25% of the shares on February 20, 2026 and quarterly thereafter. Each performance-based restricted stock unit represents a contingent right to receive one share of common stock. The PRSUs vest upon achievement of certain levels of relative total stockholder return over a performance period of three years by SiTime. On February 12, 2026, the Reporting Person made a bona fide gift for donation purposes of 900 shares of the Issuer's common stock to Stifel Charitable Inc, FBO the Ahamad Family Foundation. The reportable securities are owned directly by Stifel Charitable Inc, and the Reporting Person does not have voting or investment power over the shares. Includes an aggregate of 34,871 shares of common stock issuable pursuant to previously reported restricted stock units and performance-based restricted stock units and that have not vested. These unvested units include 21,937 restricted stock units that vest over time, and 12,934 performance-based restricted stock units that vest based on certain absolute and relative price performance of the issuer's common stock over various performance periods. SVP Finance and Chief Accounting Officer Samsheer Ahamad, as Attorney-in-Fact 2026-02-12