X0609 4 2026-10-19 0 0001807794 Credo Technology Group Holding Ltd CRDO 0001896237 Brennan William Joseph false 110 RIO ROBLES SAN JOSE CA 95134 1 1 0 0 Pres & Chief Executive Officer 1 Ordinary Shares 2026-10-19 4 S 0 769 170.389 D 1600061 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 568 171.4955 D 1599493 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 2694 172.54 D 1596799 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 3186 173.3701 D 1593613 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 2592 174.4961 D 1591021 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 1624 175.364 D 1589397 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 1490 176.3567 D 1587907 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 1232 177.4407 D 1586675 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 1109 178.3675 D 1585566 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 478 179.3483 D 1585088 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 2026-10-19 4 S 0 924 180.396 D 1584164 I The Brennan Family Trust, DTD 09/06/2002 Ordinary Shares 75000 I William Brennan 2026 GRAT Ordinary Shares 75000 I Laurie Brennan 2026 GRAT Ordinary Shares 354182 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 10, 2026. This transaction was executed in multiple trades at prices ranging from $169.99 to $170.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. This transaction was executed in multiple trades at prices ranging from $171.20 to $171.85. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $172.03 to $172.97. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $172.99 to $173.95. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $174.07 to $174.97. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $174.99 to $175.93. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $176.01 to $176.83. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $176.99 to $177.93. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $178.01 to $178.91. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $179.01 to $179.79. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $179.99 to $180.93. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. /s/ James Laufman, attorney-in-fact 2026-10-21