FY24 FULL YEAR OUTLOOK

GROSS PROFIT RECONCILIATION $ Millions (Unaudited) Gross profit on GAAP basis Dec 31, 2023 Sep 30, 2023 Jun 30, 2023 Mar 31, 2023 Dec 31, 2022 351 307 343 420 411 Share-based compensation 5 7 5 7 6 Amortization of acquired intangibles 30 31 39 31 15 Fair value adjustment on acquired inventory 112 Integration, site consolidation and other 22 21 46 6 1 Gross profit on non-GAAP basis 408 366 433 463 546 COHERENT Copyright 2024, Coherent. All rights reserved. 29 29

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