144 0001988271 XXXXXXXX LIVE 0001137789 Seagate Technology Holdings plc 001-31560 121 Woodlands Avenue 5 Singapore U0 739009 6560182562 JOHN MORRIS Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

377 79592.24 212677178 09/16/2025 NASDAQ Common 09/14/2025 Performance Stock Units Issuer N 377 09/14/2025 N/A N 10b5-1 Sales for JOHN MORRIS

121 Woodlands Avenue 5 Singapore U0 739009

Common 09/12/2025 15347 3004950.76 09/16/2025 06/01/2025 /s/ John Morris