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 4/4/18 Starboard Value LP SC 13D 4:747K Forest City Realty Trust, Inc. Broadridge Fin’l So… Inc Jeffrey C. Smith³ Mark R. Mitchell³ Peter A. Feld³ Starboard Leaders Fund LP³ Starboard Leaders Romeo LLC³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value A GP LLC³ Starboard Value A LP³ Starboard Value GP LLC³ Starboard Value R GP LLC³ Starboard Value R LP³ 10/19/16 Starboard Value LP SC 13D/A 2:275K Stewart Information Svcs Corp. Schulte Roth & Z… LLP/FA Jeffrey C. Smith³ Mark R. Mitchell³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value R GP LLC³ Starboard Value R LP³ 8/12/16 Starboard Value LP SC 13D 3:362K Stewart Information Svcs Corp. Schulte Roth & Z… LLP/FA Jeffrey C. Smith³ Mark R. Mitchell³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value R GP LLC³ Starboard Value R LP³ 4/24/15 Starboard Value LP SC 13D/A 3:207K Insperity, Inc. Donnelley … Solutions/FA Jeffrey C. Smith³ Kenneth H. Traub³ Mark R. Mitchell³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value R GP LLC³ Starboard Value R LP³ 3/23/15 Starboard Value LP SC 13D/A 2:335K Insperity, Inc. Donnelley … Solutions/FA Jeffrey C. Smith³ Kenneth H. Traub³ Mark R. Mitchell³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value R GP LLC³ Starboard Value R LP³ 1/20/15 Starboard Value LP SC 13D 5:460K Insperity, Inc. Donnelley … Solutions/FA Jeffrey C. Smith³ Ken Traub³ Mark R. Mitchell³ Peter A. Feld³ Starboard Principal Co GP LLC³ Starboard Principal Co LP³ Starboard Value & Opportunity C LP³ Starboard Value & Opportunity Master Fund Ltd.³ Starboard Value & Opportunity S LLC³ Starboard Value GP LLC³ Starboard Value R GP LLC³ Starboard Value R LP³