Capital Allocation Framework

6 WESTERN DIGITAL CONFIDENTIAL Non-GAAP Financial Results ($ in millions, except for EPS) © 2022 WESTERN DIGITAL CORPORATION OR ITS AFFILIATES ALL RIGHTS RESERVED Q4F21 Q3F22 Q4F22 QoQ YOY Revenue $ 4,920 $ 4,381 $ 4,528 Up 3% Down 8% Down 0.6 Gross Margin % 32.9% 31.7% 32.3% Up 0.6 ppt ppt Operating Expenses $ 790 $ 740 $ 760 Up 3% Down 4% Operating Income $ 828 $ 650 $ 702 Up 8% Down 15% Interest and Other Expense, net $ 79 $ 64 $ 65 Up 2% Down 18% EPS - Diluted $ 2.16 $ 1.65 $1.78 Up 8% Down 18% Operating Cash Flow $ 994 $ 398 $295 Down 26% Down 70% Free Cash Flow $ 792 $ 148 $ (97) * See Appendix for GAAP to Non-GAAP Reconciliations. * Not a meaningful figure

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