X0508 4 2026-03-02 false 0001402436 SS&C Technologies Holdings Inc SSNC 0001032282 STONE WILLIAM C C/O SS&C TECHNOLOGIES HOLDINGS, INC. 80 LAMBERTON ROAD WINDSOR CT 06095 true true true false Chairman of the Board & CEO false Common Stock 2026-03-02 4 M false 21949 A 32470808 D Restricted Stock Units 2026-03-02 4 M false 21949 0 D Common Stock 21949 0 D Restricted stock units convert into common stock on a one-for-one basis. On March 2, 2023, the reporting person was granted 63,377 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. The number of securities reported in columns 5 and 7 includes 823 dividend equivalent rights accrued with respect to the underlying restricted stock units. /Jason White/, attorney-in-fact for William C. Stone 2026-03-03