X0609 4 2026-08-14 0 0001652535 ICHOR HOLDINGS, LTD. ICHR 0001691537 BARROS PHILIP RYAN SR. false C/O ICHOR HOLDINGS, LTD. 3185 LAURELVIEW CT FREMONT CA 94538 1 1 0 0 Chief Executive Officer 1 Ordinary Shares, par value $0.0001 2026-08-14 4 F 0 711 71.05 D 164367 D Ordinary Shares, par value $0.0001 2026-08-15 4 F 0 610 71.05 D 163757 D Ordinary Shares, par value $0.0001 2026-08-18 4 F 0 881 66.08 D 162876 D Ordinary Shares, par value $0.0001 2026-08-19 4 S 0 814 61.39 D 162062 D Ordinary Shares, par value $0.0001 2026-08-19 4 S 0 500 62.67 D 161562 D Represents shares automatically withheld to cover tax withholding obligations associated with the vesting of a restricted stock unit award. Represents number of shares sold under a Rule 10b5-1 Trading Plan adopted by Mr. Barros on March 5, 2026. The reported price is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $60.88 to $61.79 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes (3) and (4) to this Form 4. The reported price is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $62.40 to $62.85 per share. /s/ Ryan Barger by Power of Attorney 2026-08-20