0001628280-23-031605 4 1 20230906 20230906 20230906 BARROS PHILIP RYAN SR. 0001691537 4 34 001-37961 231240594 3185 LAUREL VIEW CT. FREMONT CA 94538 ICHOR HOLDINGS, LTD. 0001652535 3674 000000000 E9 1227 3185 LAURELVIEW CT. FREMONT CA 94538 510-897-5200 3185 LAURELVIEW CT. FREMONT CA 94538 4 1 wk-form4_1694040918.xml FORM 4 X0508 4 2023-09-06 0 0001652535 ICHOR HOLDINGS, LTD. ICHR 0001691537 BARROS PHILIP RYAN SR. C/O ICHOR HOLDINGS, LTD. 3185 LAURELVIEW CT FREMONT CA 94538 0 1 0 0 Chief Technology Officer 0 Ordinary Shares, par value $0.0001 2023-09-06 4 M 0 1433 22.56 A 69636 D Ordinary Shares, par value $0.0001 2023-09-06 4 M 0 2814 21.76 A 72450 D Ordinary Shares, par value $0.0001 2023-09-06 4 S 0 14965 34.46 D 57485 D Option (right to buy) 22.56 2023-09-06 4 M 0 1433 0 D 2026-05-14 Ordinary Shares, par value $0.0001 1433 0 D Option (right to buy) 21.76 2023-09-06 4 M 0 2814 0 D 2027-05-12 Ordinary Shares, par value $0.0001 2814 4217 D The option vests as follows: 25% of the option vests on May 14, 2020 and the remainder vests ratably on a quarterly basis over a three year period thereafter. The option vests as follows: 25% of the option vests on May 12, 2021 and the remainder vests ratably on a quarterly basis over a three-year period thereafter. /s/ Chase Rosson by Power of Attorney 2023-09-06