Cyxtera Results Presentation Deck

Q1 2023 Occupancy 2023 YTD Stabilized Market Occupancy Bridge 74.9% Q4'22 Cyxtera -1.5% Stabilized (1) Markets -0.3% Lumen 73.1% Q1'23 (2) Stabilized Market Occupancy Trend 70.5% Q1'22 74.2% Q2'22 (1) Stabilized Markets are markets that have been in operation for more than 3 years or have an occupancy rate greater than 50%. Stabilized Markets excludes partner sites (2) Q1'23 Includes Amsterdam. Excluding Amsterdam, occupancy would be 74.0%, compared to Q4'22 of 74.9% All quarters prior to Q1'23 exclude Amsterdam as a stabilized market +2.6% YoY 73.7% Q3'22 74.9% Q4'22 73.1% Q1'23 6

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