144 0001892103 XXXXXXXX LIVE 0001810019 Rackspace Technology, Inc. 001-39420 19122 US HIGHWAY 281N SUITE 127 SAN ANTONIO TX 78258 1-800-961-4454 Marino Mark A. Officer COMMON STOCK Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza, 8th Floor New York NY 10004

48099 268873.41 249222499 06/04/2026 NASDAQ COMMON STOCK 06/04/2026 vesting of restricted stock units ISSUER N 114375 06/04/2026 not applicable (securities acquired in connection with the vesting of restricted stock units) N MARK MARINO

19122 US HWY 281 N SUITE127 SAN ANTONIO TX 78258

COMMON STOCK 03/18/2026 14058 25726.14 MARK MARINO

19122 US HWY 281 SUITE 127 SAN ANTONIO TX 78258

COMMON STOCK 03/02/2026 20183 36531.23 estimated shares to be sold for the purpose of satisfying tax withholding obligations in connection with the vesting of restricted stock units previously granted to the reporting person. 06/04/2026 09/12/2023 /s/ Sarah Alexander, as power of attorney for Mark Marino