X0407 4 2023-04-20 0 0001038074 SILICON LABORATORIES INC. SLAB 0001194838 LOWE GREGG A 400 W CESAR CHAVEZ STREET AUSTIN TX 78701 1 0 0 0 0 Common Stock, $0.0001 par value 2023-04-20 4 A 0 1172 0 A 10676 D Reflects the grant of restricted stock units (RSUs) that will entitle Reporting Person to receive one (1) share of common stock per RSU. The RSUs will vest completely on the earlier of (i) the first (1st) anniversary of the date of grant, and (ii) the date one day prior to the Annual Meeting of Stockholders in the year following the grant date. Saie-Yau Hui for Gregg Lowe 2023-04-21