6/8/23 Starboard Value LP SC 13D/A 1:218K Cyxtera Technologies, Inc. Akin Gump Str… Office/FA Jeffrey C. Smith³ Martin D. McNulty, Jr.³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ 5/22/23 Starboard Value LP SC 13D/A 1:292K Cyxtera Technologies, Inc. Donnelley … Solutions/FA Jeffrey C. Smith³ Martin D. McNulty, Jr.³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ Svac Manager LLC³ Svac Sponsor LLC³ 3/29/23 Starboard Value LP SC 13D/A 1:237K Cyxtera Technologies, Inc. Akin Gump Str… Office/FA Jeffrey C. Smith³ Martin D. McNulty, Jr.³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ Svac Manager LLC³ Svac Sponsor LLC³ 3/14/22 Starboard Value LP SC 13D/A 3:195K Cyxtera Technologies, Inc. Akin Gump Str… Office/FA Jeffrey C. Smith³ Martin D. McNulty, Jr.³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ Svac Manager LLC³ Svac Sponsor LLC³ 1/25/22 Starboard Value LP SC 13D/A 1:233K Cyxtera Technologies, Inc. Akin Gump Str… Office/FA Jeffrey C. Smith³ Martin D. McNulty, Jr.³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ Svac Manager LLC³ Svac Sponsor LLC³ 1/19/22 Starboard Value LP SC 13D/A 1:246K Cyxtera Technologies, Inc. Akin Gump Str… Office/FA Jeffrey C. Smith³ Martin D. McNulty, Jr.³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ Svac Manager LLC³ Svac Sponsor LLC³ 1/13/22 Starboard Value LP SC 13D/A 4:743K Mercury Systems Inc. Broadridge Fin’l So… Inc Jeffrey C. Smith³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ 8/10/21 Starboard Value LP SC 13D/A 1:206K Cyxtera Technologies, Inc. Akin Gump Str… Office/FA Jeffrey C. Smith³ Martin D. McNulty, Jr.³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ Svac Manager LLC³ Svac Sponsor LLC³ 8/9/21 Starboard Value LP SC 13D 1:299K Cyxtera Technologies, Inc. Akin Gump Str… Office/FA Jeffrey C. Smith³ Martin D. McNulty, Jr.³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund L LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value L LP³ Starboard Value R GP LLC³ Starboard Value R LP³ Starboard X Master Fund Ltd.³ Svac Manager LLC³ Svac Sponsor LLC³