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Coherent Corp.

Date: May 28, 2025

/s/ Rob Beard

Chief Legal and Global Affairs Officer

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 28, 2025

Coherent Corp.

(Exact name of registrant as specified in its charter)

Pennsylvania

001-39375

25-1214948

(State or Other Jurisdiction
of Incorporation)

(Commission

File Number)

(I.R.S. Employer
Identification No.)

375 Saxonburg Boulevard

Saxonburg, Pennsylvania 16056

(Address of Principal Executive Offices) (Zip Code)

(724) 352-4455

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, no par value	COHR	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01

Regulation FD Disclosure.

On May 28, 2025, Coherent Corp. (“Coherent”) held a previously announced meeting with analysts and investors in New York (the “2025 Investor Day”) and made the 2025 Investor Day meeting publicly available via webcast for analysts, investors, and the general public. At the 2025 Investor Day, management made a presentation concerning Coherent’s strategy, markets, products, customers, and financial performance and targets, among other topics. A replay of the webcast and copy of the presentation are available on the Investor Relations section of Coherent’s website at coherent.com/company/investor-relations.

Coherent also issued a press release summarizing the highlights from the 2025 Investor Day presentation. Copies of the press release and the presentation are furnished (not filed) as Exhibits 99.1 and 99.2, respectively, to this Current Report on Form 8-K. The press release and presentation include forward-looking statements and cautionary statements identifying important factors that could cause actual results to differ materially from those anticipated. The information in Item 7.01, including the exhibits furnished pursuant to Item 9.01, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities under that Section and shall not be deemed to be incorporated by reference into the filings of Coherent under the Securities Act of 1933.

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits


Exhibit No.		Description

99.1		Press Release, dated May 28, 2025

99.2		2025 Investor Day Presentation

104.0		Cover Page Interactive Data File (embedded within the inline XBRL document)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

EX-99.1 2 d908147dex991.htm EX-99.1 EX-99.1

Exhibit 99.1

Coherent Corp.

375 Saxonburg Blvd. Saxonburg, PA 16056-9499

PRESS RELEASE

COHERENT DETAILS GROWTH STRATEGY AND LONG-TERM FINANCIAL MODEL AT 2025 ANALYST AND INVESTOR DAY

SAXONBURG, Pa., May 28, 2025 – Global photonics leader Coherent Corp. (NYSE: COHR) (“Coherent,” “We,” or the “Company”) today detailed its long-term growth strategy, key areas of product and technology investment, and target long-term financial model at its 2025 Analyst and Investor Day at the New York Stock Exchange. Investors can access a webcast replay of the event and a copy of the presentation on the Company’s Investor Relations website.

Jim Anderson, CEO, said, “Our team has made significant progress over the past fiscal year, with revenue expected to grow by over 22% and EPS expected to increase by 2.8X YoY in FY25. Although we’re pleased with our progress, there is much more opportunity ahead of us as we focus on our long-term goals of driving double-digit revenue growth in our key markets, such as AI Datacenters, expanding our gross margin and EPS, and continuing to unlock additional value for shareholders.”

Analyst and Investor Day Presentation Highlights

Dr. Julie Sheridan Eng, Chief Technology Officer, highlighted Coherent’s market opportunity in optical transceivers and components for AI Datacenters, the company’s broad and deep optical technology and product portfolio, its market-leading roadmap for pluggable and CPO transceivers, the optical switching market opportunity, and our industry-leading DCI roadmap.

Dr. Chris Dorman, Executive Vice President, Lasers, detailed Coherent’s Industrial market opportunity and key growth drivers across a broad spectrum of market segments, including semi cap and display equipment, precision manufacturing, and instrumentation.

Sherri Luther, CFO, outlined the Company’s key financial priorities, focus on accelerating profitable revenue growth, investment strategy, and improved financial target model, and disclosed the organization’s new segmentation to better align with its end markets and strategy.

Forward-Looking Statements

This press release contains forward-looking statements relating to future events and expectations, including, without limitation, our expectations regarding the opportunities ahead of us; our projected fiscal year ended June 30, 2025, financial results; our ability to achieve our long-term goals of driving double-digit revenue growth in our key markets; expanding our gross margin and EPS; and continuing to unlock additional value for shareholders, each of which is based on certain assumptions and contingencies. The forward-looking statements are made pursuant to the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995 and relate to the Company’s performance on a going-forward basis. The forward-looking statements contained herein are subject to certain risks and uncertainties that could cause the Company’s actual results to differ materially from its historical experience and our present expectations or projections.

The Company believes that all forward-looking statements made by it in this press release have a reasonable basis, but there can be no assurance that management’s expectations, beliefs, or projections as expressed in the forward-looking statements will actually occur or prove to be correct. In addition to general industry and global economic conditions, factors that could cause actual results to differ materially from those discussed in the forward-looking statements in this presentation include but are not limited to: (i) the failure of any one or more of the assumptions stated herein to prove to be correct; (ii) the terms of the Company’s indebtedness and ability to service such debt in connection with its acquisition of Coherent, Inc. (the “Transaction”), (iii) risks relating to future integration and/or restructuring actions; (iv) fluctuations in purchasing patterns of customers and end users; (v) the ability of the Company to retain and hire key employees; (vi) changes in demand in the Company’s end markets along with the Company’s ability to respond to such market changes; (vii) the timely release of new products and acceptance of such new products by the market; (viii) the introduction of new products by competitors and other competitive responses; (ix) the Company’s ability to assimilate other recently acquired businesses, and realize synergies, cost savings, and opportunities for growth in connection therewith, together with the risks, costs, and uncertainties associated with such acquisitions; (x) the risks to realizing the benefits of investments in R&D and commercialization of innovations; (xi) the risks that the Company’s stock price will not trade in line with industrial technology leaders; (xii) the impact of trade protection measures, such as import tariffs by the United States or retaliatory actions taken by other countries; and/or (xiii) the risks relating to forward-looking statements and other “Risk Factors” identified from time to time in our filings with the Securities and Exchange Commission (“SEC”), including our Annual Report on Form 10-K for the fiscal year ended June 30, 2024, and our subsequently filed Quarterly Reports on Form 10-Q, which filings are available from the SEC. You should not place undue reliance on forward-looking statements, which speak only as of the date they are made. The Company disclaims any obligation to update information contained in these forward-looking statements, whether as a result of new information, future events or developments, or otherwise.

About Coherent

Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems. We deliver innovations that resonate with our customers in diversified applications for the industrial, communications, electronics, and instrumentation markets. Coherent has research and development, manufacturing, sales, service, and distribution facilities worldwide. For more information, please visit us at coherent.com.

Contact:

Paul Silverstein

Senior VP, Investor Relations

investor.relations@coherent.com

# # #

EX-99.2 3 d908147dex992.htm EX-99.2 EX-99.2

FORWARD-LOOKING STATEMENTS This presentation contains forward-looking statements relating to future events and expectations, including our expectations regarding (i) the growth in the markets we serve including, without limitation, the datacenter and communications and the industrial lasers and materials markets; (ii) our supply chain resilience and the growth in assembly and test capacity, laser device capacity and our fast ramp ability; (iii) revenue growth and the drivers of that growth; (iv) datacenter optical interconnect growth; (v) the continued acceleration of adoption cycles of new data rates; (vi) the expansion in SAM driven by optical circuit switches (“OCS”); (vii) the timing of the production of certain types of OCS; (viii) the growth in datacenter interconnect transceivers; (ix) the growth in transport equipment market; (x) market opportunity in the industrial segment, including, without limitation, market opportunity in precision manufacturing; semi-cap and display cap; instrumentation and other; and automotive and energy; (xi) the key growth drivers in our industrial end markets, our industrial growth and industrial market growth; (xii) the increase in laser content in precision manufacturing; (xiii) the growth in the display market, including, without limitation, OLED area growth and the adoption of microLED; (xiv) the growth in health sciences market; (xv) the expansion in recurring service revenue streams; and (xvi) revenue growth; gross margin expansion; investments; profitability growth; balance sheet strengthening including, without limitation, via debt leverage reduction; go forward capital allocation strategy; financial targets including, without limitation, year-over-year revenue growth, gross margin, operating expenses, and operating margin; and the impact of tariffs to our business, each of which is based on certain assumptions and contingencies. The forward-looking statements are made pursuant to the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995 and relate to the Company’s performance on a going-forward basis. The forward-looking statements in this investor presentation involve risks and uncertainties, which could cause actual results, performance, or trends to differ materially from those expressed in the forward-looking statements herein or in previous disclosures. The Company believes that all forward-looking statements made by it in this presentation have a reasonable basis, but there can be no assurance that management’s expectations, beliefs, or projections as expressed in the forward-looking statements will actually occur or prove to be correct. In addition to general industry and global economic conditions, factors that could cause actual results to differ materially from those discussed in the forward-looking statements in this presentation include but are not limited to: (i) the failure of any one or more of the assumptions stated herein to prove to be correct; (ii) the terms of the Company’s indebtedness and ability to service such debt in connection with its acquisition of Coherent, Inc. (the “Transaction”), (iii) risks relating to future integration and/or restructuring actions; (iv) fluctuations in purchasing patterns of customers and end users; (v) the ability of the Company to retain and hire key employees; (vi) changes in demand in the Company’s end markets along with the Company’s ability to respond to such market changes; (vii) the timely release of new products and acceptance of such new products by the market; (viii) the introduction of new products by competitors and other competitive responses; (ix) the Company’s ability to assimilate other recently acquired businesses, and realize synergies, cost savings, and opportunities for growth in connection therewith, together with the risks, costs, and uncertainties associated with such acquisitions; (x) the risks to realizing the benefits of investments in R&D and commercialization of innovations; (xi) the risks that the Company’s stock price will not trade in line with industrial technology leaders; (xii) the impact of trade protection measures, such as import tariffs by the United States or retaliatory actions taken by other countries; and/or (xiii) the risks relating to forward-looking statements and other “Risk Factors” identified from time to time in our filings with the Securities and Exchange Commission (“SEC”), including our Annual Report on Form 10-K for the fiscal year ended June 30, 2024, and our subsequently filed Quarterly Reports on Form 10-Q, which filings are available from the SEC. The Company disclaims any obligation to update information contained in these forward-looking statements, whether as a result of new information, future events or developments, or otherwise. Unless otherwise indicated in this presentation, all information in this presentation is as of May 28, 2025. This presentation contains non-GAAP financial measures and key metrics relating to the Company’s past performance. We believe the presentation of these non-GAAP financial measures enhances investors' overall understanding of our historical financial performance and assists investors in comparing our performance across reporting periods. These non-GAAP financial measures are in addition to, and not as a substitute for or superior to, measures of financial performance prepared in accordance with U.S. GAAP. There are a number of limitations related to the use of these non-GAAP financial measures versus their nearest GAAP equivalents. For example, other companies may calculate non-GAAP financial measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. As required by Regulation G, we have provided reconciliations of those measures to the most directly comparable GAAP measures in the section captioned “GAAP to NON-GAAP RECONCILIATION.” The Company has not provided a quantitative reconciliation of forward-looking non-GAAP gross margin percentage, non-GAAP operating expenditure percentage, non-GAAP operating margin percentage, and non-GAAP earnings per share, because we cannot, without unreasonable efforts, forecast certain items required to develop comparable GAAP measures. These items include, without limitation, restructuring charges; integration, site consolidation and other expenses; foreign exchange gains (losses); and share based compensation expense. The variability of these items could significantly impact our future GAAP financial results and we believe that the inclusion of any such reconciliations would imply a degree or precision that could be confusing or misleading to investors. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 2

AGENDA Jim Anderson Dr. Julie Sheridan Eng Dr. Christopher Dorman Sherri Luther Chief Executive Officer Chief Technology Officer EVP, Lasers Chief Financial Officer Overview & Strategy Datacenter and Industrial Lasers Financials Communications and Materials Copyright 2025, Coherent. All rights reserved. NYSE I COHR 3

THE AGE OF THE PHOTON Electron Photon Fast Speed Lightspeed Lossy Energy Efficiency Lossless Information Limited Bandwidth 10,000X Greater Capacity Copyright 2025, Coherent. All rights reserved. NYSE I COHR 5

PHOTONS ARE INDISPENSABLE TO ADVANCED MANUFACTURING Accuracy ADVANCED MANUFACTURING Lasers enable over 40 manufacturing steps Five different types of lasers required Light Mechanical Speed Complexity Drives Laser Growth Copyright 2025, Coherent. All rights reserved. NYSE I COHR 7

DATACENTER and COMMUNICATIONS INDUSTRIAL WE HARNESS PHOTONS TO DRIVE INNOVATION Innovation Broad and Deep Diversified Markets Unmatched Supply Track Record of Powerhouse Technology Stack and Customers Chain Resilience Growth Copyright 2025, Coherent. All rights reserved. NYSE I COHR 8

FOCUSED ON TWO CORE GROWTH MARKETS Datacenter and Communications Industrial Precision Mfg $6B Datacenter Communications Instrumentation $32B $12B and Other $8B $23B $44B 2030 SAM 2030 SAM Auto & Energy Semi Cap & Display $5B $4B Fast Growth High Margin Diversified and Complementary End Market Exposure Copyright 2025, Coherent. All rights reserved. NYSE I COHR 10

COHERENT HAS ASSEMBLED A BROAD ARRAY OF PHOTONIC TECHNOLOGIES Transceivers Finisar Wavelength Selective Switch CoAdna Aerospace & Defense Optical Systems LightWorks GaAs & GaN-SiC SiC Epitaxial Wafers ZnSe Platform Thermoelectrics Conformal Patterning Platform and Devices Laser Power Marlow Max Levy Anadigics Ascatron 1995 2000 2001 2004 2008 2010 2012 2013 2016 2019 2020 2022 Epitaxial Silicon Carbide Laser Processing Heads Micro-optics Wafers Highyag Photop Litton EpiWorks Faraday Rotator Precision Ceramics Integrated Photonics MCubed Lasers, Amplifiers, Advanced Coatings Ion Implantation Innovion Oclaro Lasers & Laser Systems Coherent, Inc. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 11

NOW: FOCUSING OUR INVESTMENTS AND ELIMINATING DISTRACTIONS Prior Target Target Investment Distribution Prior Investment Distribution • Concentrate investment on the core • Too much investment directed at low product lines and reduce distractions ROI and non-strategic programs • Bias investment toward faster-growing • Under-funding our core growth and product lines profit engines Non-Core Growth Engines Profit Engines Invest to ensure continued Increase investment to expand Shut down or divest health and profitability and accelerate the roadmap Copyright 2025, Coherent. All rights reserved. NYSE I COHR 12

STREAMLINING OUR PORTFOLIO: FOCUS ON PROFITABLE GROWTH ACCELERATION Prior Target Non-Strategic Profit Engines Growth Engines Streamlining and Reducing Distractions Concentrating Investment on the Core Business • Divesting or exiting non-core product lines • Datacenter and Communications • Shut down 5 unprofitable product lines • Accelerated transceiver and optical switching roadmap • Focused SiC on wafer/epi and shut down devices & modules • Tripled InP laser capacity for transceivers and CPO • Streamlining our asset base • Industrial • Exited 9 facilities over the past 18 months • Accelerated roadmap in new growth areas, e.g., ultrafast laser • Initiated exits from additional facilities • Expanding software and services capabilities • Additional actions in flight • Driving roadmap of faster product cost reductions Copyright 2025, Coherent. All rights reserved. NYSE I COHR 13

KEY GROWTH DRIVERS: DATACENTER AND COMMUNICATIONS AI Data Transmission Optical Switching Datacenter Interconnect Datacenter Bandwidth Growth SAM Expansion DCI Transceiver Market 10X $2B+ Grows to $4B 1.6T in production this year First revenue this quarter 400G & 800G ZR/ZR+ ramping 3.2T and 6.4T in development Rapid roadmap of new products 1.6T ZR/ZR+ in development Note: 10X (’25-’30) - LightCounting; OCS $2B+ and DCI $4B in 2030 - Cignal AI and internal estimates. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 14

KEY GROWTH DRIVERS: INDUSTRIAL LASERS AND MATERIALS Semi Cap Equipment Display Manufacturing Precision Manufacturing AI Driving Demand for the Most 2X Expansion in Increasing Use of Laser Processes Advanced Nodes OLED Surface Area in Modern Manufacturing Enabled by lasers, optics & materials Our lasers enable annealing Broadest portfolio of solutions Broadest and most advanced portfolio New microLED tool launches this qtr New fiber laser to expand share Copyright 2025, Coherent. All rights reserved. NYSE I COHR 15

GLOBAL PHOTONICS LEADER Manufacturing Scale Customer Benefits • Deeper level of innovation • Faster time to market • Higher quality • Supply chain resilience • Economies of scale Others Technology Breadth and Depth Copyright 2025, Coherent. All rights reserved. NYSE I COHR 16

THE INNOVATION PARTNER OF CHOICE Datacenter and Communications Industrial Critical lasers and optics are Key photonic and material technologies are internally designed and manufactured internally designed and manufactured Multigenerational innovation and development partnerships with leading AI cloud providers and the most advanced industrial leaders Copyright 2025, Coherent. All rights reserved. NYSE I COHR 17

INDUSTRY-LEADING SUPPLY CHAIN RESILIENCE Laser Device Capacity Assembly and Test Capacity InP Capacity • 3X InP capacity increase • Decades of assembly • Majority of our InP transceivers experience 2X 3X use our own EMLs • >400M transceivers shipped • New 6” line begins production • 2X capacity increase next quarter in Sherman, TX ‘23 ‘24 ‘25 Future ‘25 Future Multi-Site Flexibility Fast Ramp Ability Sites Countries 800G Ramp Materials/Optics 23 6 • Ramped 800G volume at 2X Wafer Fabs 6 3 the rate of the 400G ramp Components 20 8 • Plans in place to ramp 1.6T faster than 800G Assembly & Test 14 7 Q1 Q2 Q3 Q4 Copyright 2025, Coherent. All rights reserved. NYSE I COHR 18

ACHIEVING SIGNIFICANT PROGRESS IN FY25 Revenue ($M) Gross Margin Operating Margin Earnings Per Share 17.8% $3.45 37.9% $5,781 $4,708 13.1% 34.3% $1.21 FY24 FY25 FY24 FY25 FY24 FY25 FY24 FY25 22.8% Growth +360 bps Expansion +470 bps Expansion 2.8X Growth Note: See appendices for non-GAAP financial measures and the GAAP to non-GAAP reconciliations. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 19

DRIVING DOUBLE-DIGIT REVENUE GROWTH Revenue Growth Drivers DATACENTER and COMMUNICATIONS TARGET: 10-15%+ CAGR • AI datacenter market growth • SAM expansion, e.g., optical switching • Share gain opportunity DATACENTER 15-20%+ CAGR and COMMS INDUSTRIAL • Industrial market growth INDUSTRIAL 5-10% CAGR • Content expansion of lasers and optics • Growing recurring service revenue stream FY25 3-4 years Copyright 2025, Coherent. All rights reserved. NYSE I COHR 20

EXPANDING OPERATING MARGIN FY24 Target Gross Margin 34% >42% Operating Expense 21% 18% Operating Margin 13% >24% Note: Non-GAAP financial measures on this slide include gross margin, operating expense percentage, and operating margin. Target model is next 3-4 years. See appendices for GAAP to non-GAAP reconciliation. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 21

POWERING DATACENTER AND COMMUNICATIONS NETWORKS Datacenter and Communications Satellite Datacenter Datacenter Communications $32B $12B Submarine Long Haul Transmission Metro $44B 2030 SAM Backbone Transport Copyright 2025, Coherent. All rights reserved. NYSE I COHR 25

EXPANDING ROLE OF OPTICS IN THE DATACENTER Scale Out • Pluggable transceivers today • Distances 10 m to 10 km • Heterogeneous environment • Flexibility very important • Pluggable transceivers primary form factor Scale Up • Copper today SCALE UP SCALE OUT • Distances <10 m • Closed system • Density, cost, and power very important • SAM expansion opportunity as optics replaces copper • CPO (co-packaged optics) primary form factor Copyright 2025, Coherent. All rights reserved. NY NYS SE E I I CO COHR HR 26

DATACENTER OPTICAL INTERCONNECTS GROW THROUGH THE END OF THE DECADE SAM ($B): Pluggables, CPO $35 $30 CPO $25 $20 Pluggables $15 $10 SCALE UP SCALE OUT $5 $- 2023 2024 2025 2026 2027 2028 2029 2030 Scale-out Pluggables Scale-out CPO Scale-up CPO LightCounting and internal estimates Copyright 2025, Coherent. All rights reserved. NYSE I COHR 27

ACCELERATING ADOPTION CYCLES FAVOR TECHNOLOGY LEADERS Faster Adoption of New Data Rates 10G 100G 400G 800G 1.6T 3.2T 7 Yrs 5 Yrs 4 Yrs 3 Yrs $35 Overlapping Adoption Cycles $30 SAM by Data Rate ($B) $25 3.2T 1.6T $20 800G 400G $15 200G <=100G $10 $5 $- 2023 2024 2025 2026 2027 2028 2029 2030 LightCounting and internal estimates Copyright 2025, Coherent. All rights reserved. NYSE I COHR 28

OPTICS POWERS THE DATACENTER Pluggable Transceivers Offer Flexibility 800G • Robust roadmap of increasing bandwidth density • Standardized, multi-vendor ecosystem 1.6T • Easily serviceable 3.2T • Delays architectural commitment • Retains “pay as you grow” 6.4T Pluggable Transceivers Co-packaged Optics Drives SAM Expansion • Miniaturized transceiver, closer to switch/xPU chip • Reduces power consumption, latency, and cost • Increases faceplate density • Great fit for scale up to replace copper Co-packaged Optics (CPO) Copyright 2025, Coherent. All rights reserved. NY NYS SE E I I CO COHR HR 29

DEEP DATACOM TECHNOLOGY STACK IS A COMPETITIVE ADVANTAGE Pluggable Capability Type CPO Transceiver OPTICAL TRANSCEIVER Assembly and Test Components and Modulesüü GaAs VCSELsüü InP EMLsü Sources InP CW Lasersüü Source Lasers Passive Optics Integrated Circuits Detectors Silicon Photonicsüü GaAs Detectorsüü Detectors InP Detectorsüü Isolatorsüü Lens Arraysü Passive Optics Optical Multiplexer üü Demultiplexer Thermal Control Thermoelectric Coolersüü CPO Laser Driversüü Integrated Circuits TIAüü External Laser Sourceü Polarization-maintaining Fiberü Fiber Attach Unitü Copyright 2025, Coherent. All rights reserved. NYSE I COHR 30

20-YEAR TECHNOLOGY LEADER: BROAD AND DEEP LASER PORTFOLIO GaAs VCSELs InP EMLs/DMLs InP CW Lasers/Silicon Photonics 212 Gb/s Eye 400 Gb/s Eye • Shipped in Coherent Transceivers and • Majority of Coherent EML-based • InP CW Laser in Production and Higher- sold to other Transceiver Manufacturers Transceivers Ship with Coherent EML Power Versions in Development • 200G/lane VCSEL-based 1.6T • Demonstrated 400G Differential EML at • Demonstrated 1.6T DR8 with InP CW Laser Transceiver Demonstrated OFC 2025 OFC 2025 and Silicon Photonics at ECOC 2024 Shipped ¼ BILLION InP Lasers 1 BILLION VCSELs For Datacom Copyright 2025, Coherent. All rights reserved. NYSE I COHR 32

INTERNALLY DEVELOPED PHOTODETECTORS ARE A DIFFERENTIATOR Advantages of Deep Vertical Tech Stack Transceiver Transceiver • Time to market Laser Detector • Innovation • Cost Detector Laser • Supply chain resilience Differentiation in Photodetectors (PDs): • World’s first 4x25G PD for first 100G transceivers • Custom-designed PD with integrated backside lenses for 200G/lane Back Front Shipped 1 BILLION InP and GaAs Photodetectors Copyright 2025, Coherent. All rights reserved. NYSE I COHR 33

EXPERTISE IN PASSIVE OPTICS ADDS TO COMPETITIVE ADVANTAGE Garnet Free Space Isolators Optical Multiplexers and Demultiplexers Fiber Assemblies for Transceivers Micro-optics Thermoelectric Coolers In-house design and manufacture enable differentiation and cost advantage Isolators, garnet, and passive optics are critical for transceivers Copyright 2025, Coherent. All rights reserved. NYSE I COHR 34

MARKET-LEADING ROADMAP FOR PLUGGABLE TRANSCEIVERS 800G 1.6T 3.2T 6.4T In Volume Volume In In Production Production Development Development 2025 NEW INDUSTRY DEMO DEMO PRODUCT FIRST 2025 OCS Optimized 200G/lane VCSEL 1.6 T SR8 Transceiver 400G EML for 3.2T Transceivers Transceiver 1.6T Si Pho LRO Transceiver 1.6T Si Pho 3 nm DSP Transceiver Copyright 2025, Coherent. All rights reserved. NYSE I COHR 35

DEEP MULTI-CUSTOMER ENGAGEMENT ON CPO • Engaged with a broad set of customers • Wide range of implementation • Broad portfolio of CPO-enabling technologies “AI factories are growing and networking infrastructure must evolve to keep pace. NVIDIA’s collaboration with innovators, such as Coherent, on silicon photonics will propel the next generation of AI.” Proud to be an Nvidia Ecosystem Innovation Partner - Gilad Shainer, SVP of Networking at NVIDIA Copyright 2025, Coherent. All rights reserved. NYSE I COHR 36

OPTICAL CIRCUIT SWITCH (OCS) DRIVES SAM EXPANSION Benefits of OCS • Reduces power consumption and cost OCS • Allows dynamic scheduling • Improves network reliability • Minimizes latency Cost Power 30% Savings 41% Savings $2B OCS SAM by 2030 Without OCS With OCS Without OCS With OCS Note: OCS SAM - Cignal AI and internal estimates Copyright 2025, Coherent. All rights reserved. NYSE I COHR 37

DEEPLY DIFFERENTIATED OPTICAL CIRCUIT SWITCH TECHNOLOGY Software Stack by Coherent Coherent Solution Other Solutions Integrated software for onboard control electronics and interface to customer Liquid Crystal Technology Microelectromechanical Software network management Systems (MEMS) Liquid Crystal Cell MEMS Mirror Arrays • No moving parts • Mechanical moving parts • No high-voltage components • High-voltage components • Shipped into subsea applications for decades • Dramatically differentiated reliability • Shipping components into OCS for >10 years • Demonstrated OCS at OFC 2024 OCS System by Coherent • First revenue achieved this quarter Copyright 2025, Coherent. All rights reserved. NYSE I COHR 38

MARKET-LEADING OCS ROADMAP FOR DATACENTER AND DCI Larger Increasing 64x64 C-Band Modular Capacity Capacity OCS OCS OCS OCS OCS Production Production Samples 2025 2025 2026 2026 2027 SAMPLING NOW Received Larger switch release for C-band availability to Modular chassis design to Continuous evolution to production orders higher radix needs address DCI market address scale-up needs larger radix sizes Copyright 2025, Coherent. All rights reserved. NYSE I COHR 39

SIGNIFICANT GROWTH IN DATACENTER INTERCONNECT (DCI) TRANSCEIVERS • Power constraints are forcing AI workloads to be spread across multiple datacenters • Drives the need for more and higher-speed DCI optical interconnects between datacenters • 100G, 400G, 800G ZR/ZR+ transceivers critical for DCI $5 DCI Transceiver SAM ($B) $4 $3 $2 $4B $1 DCI Transceiver SAM by 2030 $0 2023 2024 2025 2026 2027 2028 2029 2030 Source: Cignal AI and internal estimates Copyright 2025, Coherent. All rights reserved. NYSE I COHR 41

DIFFERENTIATION AND TIME TO MARKET LEAD THROUGH INTERNAL TECHNOLOGY Multi-Year Lead Due to Internal InP Technology 100G ZR QSFP28 TRANSCEIVER • Industry’s first 100G ZR QSFP28 transceiver • Enabled by novel low-power InP tunable laser Purpose-built Power-optimized Tunable Laser First to Market on 800G ZR/ZR+ QSFP-DD • Enabled by market-leading InP photonic integrated circuit (PIC) technology Complex InP PIC Designed and Manufactured • InP PIC technology enables power- and cost-efficient by Coherent solution for C & L band Copyright 2025, Coherent. All rights reserved. NYSE I COHR 42

INDUSTRY-LEADING DCI ROADMAP 100G 800G 1.6T 3.2T 400G In Production Ramping now In Development In Development INDUSTRY INDUSTRY FR/LR/ZR LR/ZR FIRST FIRST AI Scale Out AI Campus Scale Out Industry’s First 800G Industry’s First 100G ZR/ZR+ Q-DD ZR QSFP28 400G ZR+ for longer reach Industry’s First and DCI backbones L-band 800G ZR/ZR+ Copyright 2025, Coherent. All rights reserved. NYSE I COHR 43

TRANSPORT EQUIPMENT CRITICAL FOR NETWORK GROWTH AND FLEXIBILITY • Transport products carry, route, and monitor the optical signal from source to destination CLIENT METRO METRO CLIENT CORE • Key functions include: • Amplification • Switching and routing Optical Transport Network • Monitoring • Deep vertical tech stack & broad solution set $6 Transport SAM ($B) $5 $4 $3 $2 $5B $1 Transport Market by 2030 $0 2023 2024 2025 2026 2027 2028 2029 2030 Note: Transport SAM - OMDIA and internal estimates Copyright 2025, Coherent. All rights reserved. NYSE I COHR 44

HISTORY OF INNOVATIONS POWERING TRANSPORT NETWORK EFFICIENCY Merchant Wavelength Blocker OCM Disaggregated Dual Chip POLS Multi-Rail Uncooled µPump EDFA DGE Subsystems Pump Nano EDFA Embedded OTDR • Best-in-class GaAs pump laser chip design and INDUSTRY efficiency for over 20 years FIRST • Multi-generation lead in pump technology 2025 • Deep vertical tech stack & broad solution set Industry First Demonstration of multi-rail systems for dramatic improvement in power, efficiency, and footprint Copyright 2025, Coherent. All rights reserved. NYSE I COHR 45

POWERING DATACENTER AND COMMUNICATIONS NETWORKS Satellite Datacenter Large and Rapidly Innovation Leader with Growing Markets Many Industry Firsts Submarine Long Haul Transmission Metro Broad and Deep Multi-Gen Relationships Backbone Technology Portfolio with Top Customers Transport Copyright 2025, Coherent. All rights reserved. NYSE I COHR 46

HIGHER POWER: MEANS FASTER DELIVERY OF PRECISE HEAT Power Increasing Over Time (½ inch Mild Steel Cutting Comparison) 5 kW 20+ kW CO Laser 2 Fiber Laser 6 inch/min 30 feet/min POWER 2000s Today 20 kW FIBER Higher Power • More heat per second The Width of a Hair • Faster melting • Faster welding, cutting, scribing LIGHT The Intensity of a Star C Copy opyr riight ght 2025, 2025, C Coher oherent ent. . A Allll r riight ghts s r res eser erv ved. ed. NY NYS SE E I I CO COHR HR 50

SHORTER WAVELENGTH: MEANS FINER FEATURE MANUFACTURING Wavelength Decreasing over Time 532 nm 266 nm 2000s Today Shorter Wavelengths • Focusing to a smaller spot • Finer feature manufacturing • Imaging smaller objects Modern wafer inspection is equivalent to scanning Manhattan in 20 seconds to find and identify the species of an ant Copyright 2025, Coherent. All rights reserved. NY NYS SE E I I CO COHR HR 51

SHORTER PULSES: MEANS CUTTING WITHOUT HEAT >100 MW Pulse Shortening Over Time of Peak Power 10 ps 300 fs 2000s Today Shorter Pulses • Higher peak power for less time • Heat travels at electron speed, a few atoms in 300 fs • Cutting without heat 40 W of Power Compressed to 300 fs Copyright 2025, Coherent. All rights reserved. NY NYS SE E I I CO COHR HR 52

FULL PORTFOLIO OF LASER TECHNOLOGY = FULL RANGE OF APPLICATIONS Excimer Laser Ion Laser Solid State Fiber Laser CO Laser 2 Wavelength UV UV UV – IR IR Far IR Power High Low All High High Continuous, Long, Continuous, Pulse Long Continuous Continuous Ultrafast Long Copyright 2025, Coherent. All rights reserved. NYSE I COHR 53

BROAD PORTFOLIO OF PRODUCTS, WIDE SPECTRUM OF MARKETS Market Excimer Ion Solid State Fiber CO 2 Semi Capital Equipment ◉◉◉◉◉ n/a Precision Manufacturing ◉◉◉◉ n/a n/a Display Manufacturing ◉◉◉ n/a Instrumentation ◉◉◉◉ n/a = Not applicable Copyright 2025, Coherent. All rights reserved. NYSE I COHR 54

LASERS MAKE MODERN SMARTPHONE MANUFACTURING POSSIBLE Camera Module / Sensor Case Sapphire Lens Cutting Cutting / Engraving Welding / Soldering Laser Marking / Coding Legend: 3D Molded Interconnects Display Module OLED Excimer IC Logic / Memory / Modem Ion LTPS Annealing Photolithography Solid state Laser Lift-Off Fiber laser Bare & Patterned Wafer Inspection Glass / Sapphire Cutting CO 2 Wafer Dicing / Low-k-Scribe Flex OLED Cutting and Precision Manufacturing Drilling SiP Package Machining Film / Polarizer Cutting Display Cap Equipment Wafer Annealing Semi Cap Equipment Main PCB Battery Micro Via Drilling Foil Cutting Laser Direct Imaging Marking / Coding Laser Singulation / Depaneling Welding Structuring Copyright 2025, Coherent. All rights reserved. NYSE I COHR 55

DEEPEST PORTFOLIO OF PHOTONIC TECHNOLOGIES EXAMPLE: ULTRAFAST LASER Nonlinear Crystals Optics Diffraction Gratings Fiber Processing Acousto-optic Modulators Gallium Arsenide Pump Diodes Fiber Bragg Gratings Integrated Software for onboard control electronics, external control, Gallium Arsenide Substrates Software and diagnostics Speciality Fiber Isolators Copyright 2025, Coherent. All rights reserved. NYSE I COHR 56

ADVANCED MATERIALS ARE OUR KEY FOUNDATIONAL ELEMENTS Transceivers Lasers Industrial Indium Gallium Crystals/ Zinc Diamond/SiC/ Phosphide Arsenide Garnet Selenide Composites Copyright 2025, Coherent. All rights reserved. NYSE I COHR 57

ADVANCED MATERIALS MAKE SEMICONDUCTORS POSSIBLE Ion Epitaxy Deposition CMP Inspection Lithography Etch Implantation Back End Epi Susceptors Baseplates CMP Discs Wafer Chucks Wafer Tables Baseplates Wafer Carriers TCB Nozzles Showerheads Stages Stages Showerheads Back-end Stages Mirrors Via Drilling Optics Wafer Carriers Laser Windows Optics Crystals ZnSe Diamond Crystals SiC / Engineered Materials Copyright 2025, Coherent. All rights reserved. NYSE I COHR 58

KEY GROWTH DRIVERS IN OUR INDUSTRIAL END MARKETS $ Coherent Industrial Growth (5-10%) Wavelength Semi Capital Equipment Power Pulse Precision Manufacturing Industrial Market Growth (3-5%) Next 3-4 years Power Wavelength Display Capital Equipment § Increasing laser processes Wavelength Instrumentation § Increasing laser complexity Copyright 2025, Coherent. All rights reserved. NYSE I COHR 59

INCREASING USE AND COMPLEXITY OF SEMI CAP INSPECTION LASERS Smaller node size increases Node 250 nm 3 nm≤2 nm process intensity and complexity Optical Steep increase in number of 3 85 100+ inspection steps Inspection Steps Shorter wavelengths Wavelength 532 nm 266 nm≤266 nm Increasing complexity Copyright 2025, Coherent. All rights reserved. NYSE I COHR 60

TODAY’S SEMI CAP INSPECTION LASERS ARE 5X MORE COMPLEX • Atomic-level mirror position control Equivalent of Entire Laser in 2002 • 20 years of internal crystal development Cutting-Edge Software • Materials expertise enabling 20,000-hour Software lifetime Copyright 2025, Coherent. All rights reserved. NYSE I COHR 61

INCREASING LASER CONTENT IN PRECISION MANUFACTURING Example: EV Manufacturing Example: Mobile Phone Manufacturing Ultra-Precise Heat Ultrafast, Power Without Heat Year 2000s Today Future 2000s Today Future Laser Process 1-2 40 50+ 1-2 40 50+ Steps Laser 5 kW 10 kW kW, Pulsed 30 ns 300 fs fs UV Copyright 2025, Coherent. All rights reserved. NYSE I COHR 62

DEEP TECH STACK ENABLES PRECISION MANUFACTURING LEADERSHIP Power: Speed- and Cost-Driven Ultrafast: Capability-Driven Software Beam Delivery Systems Advanced Fiber Nonlinear Crystals Complex Optic Coatings GaAs Epi Wafers Specialty Fiber Optics Combiner Components Pump Assemblies Copyright 2025, Coherent. All rights reserved. NYSE I COHR 63

PRODUCT LAUNCH: PRECISION MANUFACTURING AIM FL Series of Single-Mode Fiber Lasers • Rack-mounted industrial, multi-kilowatt single-mode fiber lasers • For automotive, EV, medical device, and consumer goods manufacturing • Single-mode for superior beam quality, stability, and precision • Leverages Coherent’s deep vertical tech stack Launched March 2025 Copyright 2025, Coherent. All rights reserved. NYSE I COHR 64

DISPLAY MARKET: ENABLING OLED AREA GROWTH AND MICROLED ADOPTION Area Vol/year Today Outlook 55% 1X 1.4 Billion 90% OLED OLED OLED 2X Expansion in Total OLED 5% 4X 440 Million 25% OLED Surface Area OLED microLED 10% of TV Market 0% 100X 230 Million Penetration microLED Future Content Expansion = $1B Opportunity Copyright 2025, Coherent. All rights reserved. NYSE I COHR 65

UNRIVALLED UV PHOTON POWER FOR OLED DISPLAY PROCESSING 2010s Today Future Area of OLED 2 0.01 10 20 (million m ) Panel Size Gen 4.5 Gen 6 Gen 8 2 kW UV anneals the silicon backplane Process of record 1 kW 2 kW 2 kW Laser Power Sophisticated software stack for excimer, solid state annealing Software Excimer Excimer Excimer, DPSS Copyright 2025, Coherent. All rights reserved. NYSE I COHR 66

PRODUCT LAUNCH: DISPLAY • World’s first high-throughput turnkey system for inline UVTRANSFER microLED production, more than 50k LED per second • MicroLED for TV-sized panels • Brightest display, tiles for size flexibility, long lifetime, robust • Highest power of UV photons for production-ready throughput rates • Mass transfer time reducing from hours to minutes per TV Launching This Sophisticated software stack for Quarter microLED manufacturing Software Copyright 2025, Coherent. All rights reserved. NYSE I COHR 67

HEALTH SCIENCES REQUIRE INCREASING PHOTONIC COMPLEXITY 2000s Today Future Cells / s 10,000 50,000 150,000 Colors 1-2 6 9+ • Flow Cytometry: Laser-based analysis to rapidly count thousands of cells • Detects cancers, detects diseases, assesses vaccines Contents • Growth driven by an aging population and personalized medicine • High-dimensional analysis Software Copyright 2025, Coherent. All rights reserved. NYSE I COHR 68

PRODUCT LAUNCH: INSTRUMENTATION – AXON FL Picture • 140 fs 920 nm pulses for 3D imaging of brains to neuron-level accuracy • Enables real-time laser imaging of neural activity on mobile subjects, providing real-world feedback • Neuroscience, disease research, drug discovery, and moving toward clinical applications • Driven by an aging population Launched This Sophisticated software stack for Quarter neuroscience Software Copyright 2025, Coherent. All rights reserved. NYSE I COHR 69

EXPANDING RECURRING SERVICE REVENUE STREAMS Example: Solid State Laser $$$$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 20 Years Industrial System Sale Service and Consumables Revenues Revenue Revenue $1X 25% $5X Growing Service and Consumables Revenue Enduring Service Revenue Copyright 2025, Coherent. All rights reserved. NYSE I COHR 70

FINANCIAL PROGRESS TO DATE OPEX REVENUE ($M) GROSS MARGIN 1,498 38.5% 1,435 38.2% 1,348 21.0% 1,314 1,209 36.7% 20.6% 35.9% 20.4% 19.9% 33.6% 19.7% Q3 FY24 Q4 FY24 Q1 FY25 Q2 FY25 Q3 FY25 Q3 FY24 Q4 FY24 Q1 FY25 Q2 FY25 Q3 FY25 Q3 FY24 Q4 FY24 Q1 FY25 Q2 FY25 Q3 FY25 24% Revenue Growth + 490 bps Expansion OpEx Discipline OPERATING INCOME % INTEREST EXPENSE ($M) EARNINGS PER SHARE 18.6% 18.5% $73 16.1% $68 $67 15.4% $64 $0.95 $0.91 $57 12.6% $0.67 $0.51 $0.38 Q3 FY24 Q4 FY24 Q1 FY25 Q2 FY25 Q3 FY25 Q3 FY24 Q4 FY24 Q1 FY25 Q2 FY25 Q3 FY25 Q3 FY24 Q4 FY24 Q1 FY25 Q2 FY25 Q3 FY25 + 600 bps Expansion 22% Reduction in Interest 2.4X EPS Growth Note: All comparisons for Q3’25 vs Q3’24. See appendices for non-GAAP financial measures and the GAAP to non-GAAP reconciliation. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 74

GROSS MARGIN EXPANSION Gross Margin Expansion Strategies Product Volume >42% • Improved absorption on higher volumes is a tailwind • Potential headwinds from mix Cost Price Pricing Optimization 37.9% Vol • New pricing tools & analytics • Depth & breadth of product offerings Cost Reductions • Operational improvements in efficiency & yield • Reductions in fixed costs and overhead FY25 TARGET Note: Non-GAAP Gross Margin. See appendices for non-GAAP financial measures and the GAAP to non-GAAP reconciliation. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 76

INVESTMENTS FOR LONG-TERM GROWTH Operating Expenses Investment Strategy R&D SG&A OPEX % SG&A • Disciplined G&A expense management 21.2% 20.0% • Drive efficiencies & leverage with low-cost geos 18.0% • Operational leverage as revenue grows 11.6% 10.4% 8.0% R&D • Scale with revenue & invest in long-term growth 10.0% 9.6% 9.6% • Investments with the highest ROI • Shift investments to profit & growth engines FY24 FY25 Target Note: See appendices for non-GAAP financial measures and the GAAP to non-GAAP reconciliation. Note: Non-GAAP Copyright 2025, Coherent. All rights reserved. NYSE I COHR 77

PROFITABILITY GROWTH Operating Margin Profitability Expansion >24% • Double-digit revenue growth • Gross margin expansion 18% • Disciplined SG&A spend 13% • R&D investments for long-term growth FY24 FY25 Target Note: See appendices for non-GAAP financial measures and the GAAP to non-GAAP reconciliation. Note: Non-GAAP Copyright 2025, Coherent. All rights reserved. NYSE I COHR 78

STRENGTHENING THE BALANCE SHEET Leverage Ratio Cash Allocation Debt Balance TTM EBITDA Leverage Ratio 2.5x • Maintain strong liquidity • Excess cash used to pay down debt 2.1x <2.0x • Reduced interest rate by 75 bps through debt repricing • Drive leverage ratio to <2.0x • Debt payments of $386M made in FY25 YTD FY24 Q3FY25 Target Focus on Debt Leverage Reduction Note: Non-GAAP financial measures. See appendices for GAAP to non-GAAP reconciliation. Debt leverage ratio as defined by credit agreement, excludes convertible preferred shares. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 79

CAPITAL ALLOCATION Capital Allocation in Q1-Q3 FY25 ($M) Go-Forward Strategy (FY25) Organic Investment R&D $405 Investment Invest in the product portfolio Capex investment to support revenue growth Capex $310 Investment Debt Paydown & Interest Reduction $386 Debt Paydown Reduce leverage ratio to <2.0 Strategic M&A Strategic M&A $0 Adjacent & complementary to the core business Investing to Drive Long-Term Revenue Growth and Reduce Debt and Interest Copyright 2025, Coherent. All rights reserved. NYSE I COHR 80

FINANCIAL TARGET MODEL Target Model FY24 FY25 (Next 3 to 4 years) Revenue Growth (YoY) (9%) +23% 10-15%+ Sustainable double-digit growth Gross Margin 34.3% 37.9% >42% Pricing optimization & cost reduction strategy Investing in long-term product portfolio OpEx 21.2% 20.0% 18% (10% R&D, 8% SG&A) Operating Margin 13.1% 17.8% >24% Expanding margins & profitability Focused on Driving Long-Term Shareholder Value Note: See appendices for non-GAAP financial measures and the GAAP to non-GAAP reconciliation. Note: Non-GAAP Copyright 2025, Coherent. All rights reserved. NYSE I COHR 81

TARIFFS • Based on the current tariff policy, the impact of tariffs to our business in Q4 FY25 is not expected to be significant • Any changes to this current landscape could change the expected impact • We believe we have a resilient & flexible supply chain highly valued by our customers • Global manufacturing footprint with 60 different locations across 14 countries • Half of our manufacturing locations are in the U.S. • Internal production of many of our most critical technology in-feeds • Adaptable supply chain with optionality that benefits our customers • We expect to adapt as necessary to support our customers in response to any changes in the landscape Copyright 2025, Coherent. All rights reserved. NYSE I COHR 82

NEW REPORTING SEGMENTATION BEGINNING IN FY26 Revenue Distribution New Segments • New reporting segmentation will be effective FY26 New Current Segmentation Segmentation • Reflects better alignment with end markets Lasers Industrial INDUSTRIAL • Semiconductor and Display Capital Equipment Materials • Precision Manufacturing, Instrumentation and Other DATACENTER and COMMUNICATIONS Datacenter & Networking Comms • Datacom Transceivers and Components • Telecom and DCI Current New Note: Revenue distribution is based on FY25 Forecast. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 83

APPENDIX: GAAP TO NON-GAAP RECONCILIATIONS Non-GAAP financial measures on these slides include gross margin, operating expense percentage, operating margin, operating income percentage and earnings per share. See appendices for GAAP to non-GAAP reconciliations. Debt leverage ratio as defined by credit agreement, excludes convertible preferred shares. All comparisons for quarterly data are Q3’25 vs Q3’24. FY25 is Q1 to Q3 actuals plus Q4 mid-point of guide. The Company does not provide reconciliations of forward-looking Non-GAAP measures. The Company is unable, without unreasonable efforts, to forecast certain items required to develop a meaningful GAAP financial measure that is comparable to this forward-looking figure. Copyright 2025, Coherent. All rights reserved. NYSE I COHR 85

GROSS MARGIN RECONCILIATION (Millions, except percentages) Q3 24 Q4 24 Q1 25 Q2 25 Q3 25 FY24 GAAP Gross Margin $366 $432 $460 $509 $528 $1,456 GAAP Gross Margin % 30.3% 32.9% 34.1% 35.5% 35.2% 30.9% Share-based compensation 5 5 6 6 5 23 Amortization of acquired intangibles 31 30 30 30 44 122 Integration, site consolidation and other 4 4 (1) 3 - 15 Non-GAAP Gross Margin $406 $471 $495 $ 548 $577 $1,616 Non-GAAP Gross Margin % 33.6% 35.9% 36.7% 38.2% 38.5% 34.3% Copyright 2025, Coherent. All rights reserved. NYSE I COHR 86

OPERATING EXPENSES RECONCILIATION (Millions, except percentages) Q3 24 Q4 24 Q1 25 Q2 25 Q3 25 FY24 $344 $369 $385 $372 $456 $1,360 GAAP Operating Expenses % of Revenue 28.5% 28.1% 28.6% 26.0% 30.4% 28.9% Share-based compensation (21) (24) (30) (35) (35) (104) Amortization of acquired intangibles (42) (41) (41) (41) (44) (166) Restructuring and other charges (12) (14) (24) (8) (74) (27) Integration, site consolidation and other (15) (21) (12) (5) (6) (65) $998 Non-GAAP Operating Expenses $254 $269 $278 $283 $297 21.2% % of Revenue 21.0% 20.4% 20.6% 19.7% 19.9% Copyright 2025, Coherent. All rights reserved. NYSE I COHR 87

R&D % AND SG&A % RECONCILIATION Q1 25 Q2 25 Q3 25 FY24 10.1% GAAP R&D Expense % 9.8% 10.0% 10.2% (0.4%) Share-based compensation (0.4%) (0.4%) (0.5%) (0.3%) Amortization of acquired intangibles (0.1%) - (0.1%) 9.4% Non-GAAP R&D Expense % 9.3% 9.6% 9.6% Q1 25 Q2 25 Q3 25 FY24 GAAP SG&A Expense % 17.0% 15.4% 15.5% 18.1% Share-based compensation (1.8%) (2.1%) (2.0%) (1.7%) Amortization of acquired intangibles (3.0%) (2.8%) (2.7%) (3.5%) Integration, site consolidation and other (0.9%) (0.3%) (0.4%) (1.3%) Non-GAAP SG&A Expense % 11.3% 10.2% 10.5% 11.6% Copyright 2025, Coherent. All rights reserved. NYSE I COHR 88

OPERATING INCOME RECONCILIATION (Millions, except percentages) Q3 24 Q4 24 Q1 25 Q2 25 Q3 25 FY24 GAAP Operating Income $22 $63 $75 $137 $72 $96 GAAP Operating Income % 1.8% 4.8% 5.6% 9.5% 4.8% 2.0% Share-based compensation 26 29 36 41 40 127 Amortization of acquired intangibles 72 72 72 72 87 288 Restructuring and other charges 12 14 24 8 74 27 Integration, site consolidation and other 19 25 11 7 6 80 Non-GAAP Operating Income $152 $203 $218 $265 $279 $618 Non-GAAP Operating Income % 12.6% 15.4% 16.1% 18.5% 18.6% 13.1% Copyright 2025, Coherent. All rights reserved. NYSE I COHR 89

EARNINGS PER SHARE RECONCILIATION Q3 24 Q4 24 Q1 25 Q2 25 Q3 25 FY 24 GAAP net income per share - diluted $(0.29) $(0.52) $ (0.04) $0.44 $ (0.11) $ (1.84) Share-based compensation 0.17 0.19 0.23 0.26 0.25 0.83 Amortization of acquired intangibles 0.46 0.47 0.45 0.45 0.55 1.89 Restructuring and other charges 0.08 0.09 0.15 0.05 0.47 0.18 Integration, site consolidation and other 0.12 0.16 0.07 0.04 0.04 0.52 Foreign currency exchange (gains) losses 0.02 0.01 0.06 (0.22) 0.10 0.06 Non-controlling interest impact of non-GAAP items - - - - (0.08) - Tax effect of non-GAAP adjustments (0.18) 0.12 (0.25) (0.08) (0.31) (0.42) Non-GAAP net income per share - diluted $0.38 $0.51 $0.67 $0.95 $0.91 $1.21 Copyright 2025, Coherent. All rights reserved. NYSE I COHR 90