X0407 4 2023-06-28 1 0001747748 Qualtrics International Inc. XM 0001830356 SLTA VI (GP), L.L.C. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 1 0 0001418226 Silver Lake Group, L.L.C. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 1 0 0001830249 Silver Lake Technology Associates VI, L.P. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 1 0 0001850029 Silver Lake Partners VI DE (AIV), L.P. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 1 0 0001850130 Silver Lake Technology Investors VI L.P. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 1 0 0001830259 SLP VI Aggregator GP, L.L.C. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 1 0 0001841116 SLP Quartz Aggregator, L.P. C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 1 0 0001651403 Durban Egon C/O SILVER LAKE 2775 SAND HILL ROAD, SUITE 100 MENLO PARK CA 94025 1 0 1 0 0 Class A Common Stock 2023-06-28 4 D 0 2286624 D 0 I Held through Silver Lake Partners VI DE (AIV), L.P. Class A Common Stock 2023-06-28 4 D 0 182731 D 0 I Held through Silver Lake Technology Investors VI, L.P. Class A Common Stock 2023-06-28 4 D 0 22518484 D 0 I Held through SLP Quartz Aggregator, L.P. Pursuant the Agreement and Plan of Merger, dated as of March 12, 2023, by and among the Issuer, Quartz Holdco, LLC ("Parent"), and Quartz MergerCo, Inc. ("Merger Sub"), on June 28, 2023, Merger Sub merged with and into the Issuer with the Issuer surviving such merger as a wholly owned subsidiary of Parent (the "Merger"). Immediately prior to the effective time of the Merger, each share of the Issuer's Common Stock beneficially owned by the reporting persons was contributed to Parent in exchange for class A units of Parent. Each such share of the Issuer's Common Stock was then cancelled and ceased to exist. Silver Lake Technology Associates VI, L.P. ("SLTA VI") is the general partner of each of Silver Lake Partners VI DE (AIV), L.P. ("SLP VI") and Silver Lake Technology Investors VI, L.P. ("SLTI VI"), and the managing member of SLP VI Aggregator GP, L.L.C. ("SLP VI GP"). SLP VI GP is the general partner of SLP Quartz Aggregator, L.P. ("SLP Quartz"). SLTA VI (GP), L.L.C. ("SLTA VI GP") is the general partner of SLTA VI. Silver Lake Group, L.L.C. ("SLG") is the managing member of SLTA VI GP. Prior to the consummation of the Merger, Mr. Egon Durban served as a member of the board of directors of the Issuer and is Co-CEO and Managing Member of SLG. Each of SLP VI, SLTI VI, SLP Quartz, SLP VI GP, SLTA VI, SLTA VI GP and SLG may be deemed to be a director by deputization of the Issuer. By: /s/ Andrew J. Schader, Managing Director and GC of Silver Lake Group, L.L.C., managing member of SLTA VI (GP), L.L.C. 2023-06-28 By: /s/ Andrew J. Schader, Managing Director and GC of Silver Lake Group, L.L.C. 2023-06-28 By: /s/ Andrew J. Schader, Managing Director and GC of Silver Lake Group, L.L.C., managing member of SLTA VI (GP), L.L.C., general partner of Silver Lake Technology Associates VI, L.P. 2023-06-28 By: /s/ Andrew J. Schader, Managing Director and GC of Silver Lake Group, L.L.C., managing member of SLTA VI (GP), L.L.C., GP of Silver Lake Technology Associates VI, L.P., GP of Silver Lake Partners VI DE (AIV), L.P. 2023-06-28 By: /s/ Andrew J. Schader, Managing Director and GC of Silver Lake Group, L.L.C., managing member of SLTA VI (GP), L.L.C., GP of Silver Lake Technology Associates VI, L.P., GP of Silver Lake Technology Investors VI, L.P. 2023-06-28 By: /s/ Andrew J. Schader, Managing Director and GC of Silver Lake Group, L.L.C., managing member of SLTA VI (GP), L.L.C., GP of Silver Lake Technology Associates VI, L.P., managing member of SLP VI Aggregator GP, L.L.C. 2023-06-28 By: /s/ Andrew J. Schader, Managing Director and GC of Silver Lake Group, L.L.C., managing member of SLTA VI (GP), L.L.C., GP of Silver Lake Technology Associates VI, L.P., managing member of SLP VI Aggregator GP, L.L.C., GP of SLP Quartz Aggregator, L.P. 2023-06-28 /s/ Egon Durban 2023-06-28