144 0001773423 XXXXXXXX LIVE 0001137789 Seagate Technology Holdings plc 001-31560 121 WOODLANDS AVENUE 5 SINGAPORE U0 739009 65 6412 5172 Lee James CI Officer Common Stock Morgan Stanley

1 New York Plaza 8th Floor New York NY 10004

543 490740.98 224228992 07/23/2026 NASDAQGS Common stock 07/22/2026 Restricted Stock Unit Vesting Issuer N 1237 07/22/2026 Compensation for services N James C. Lee

47488 Kato Rd Fremont CA 94538

Common Stock 05/04/2026 697 516595.49 Sales to be made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations. PoA attached. 07/23/2026 /s/ Dawn Ledbetter. Attorney-in-Fact for James C. Lee