FY24 Q2 Financial Outlook

INCOME FROM OPERATIONS RECONCILIATION $ Millions (Unaudited) Sep 30, 2023 Jun 30, 2023 Mar 31, 2023 Dec 31, 2022 Sep 30, 2022 Op. income (loss) on GAAP basis (21) (155) 67 8 43 Share-based compensation 45 26 35 35 53 Fair value adjustment on acquired inventory 112 46 Amortization of acquired intangibles Restructuring charges Transaction fees and financing Integration, site consolidation and other w I w w 73 134 93 105 83 119 Op. income on non-GAAP basis Non-GAAP Op. Margin Percentage 39 33 61 22 17 24 132 185 217 278 287 12.6 % 15.4 % 17.5 % 20.3 % 21.3 % COHERENT Copyright 2023, Coherent. All rights reserved. 40 40

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