# EDGAR Filing Document

**Accession Number:** 0001039065
**File Stem:** 0001104659-25-101517
**Filing Date:** 2025-10
**Character Count:** 253811
**Document Hash:** e08b95d0157ed5afeded8c0bbfe8ab3c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-101517.hdr.sgml**: 20251022

**ACCESSION NUMBER**: 0001104659-25-101517

**CONFORMED SUBMISSION TYPE**: DEF 14A

**PUBLIC DOCUMENT COUNT**: 95

**CONFORMED PERIOD OF REPORT**: 20251211

**FILED AS OF DATE**: 20251022

**DATE AS OF CHANGE**: 20251022

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OSI SYSTEMS INC
- **CENTRAL INDEX KEY:** 0001039065
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 330238801
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** DEF 14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-23125
- **FILM NUMBER:** 251410106

**BUSINESS ADDRESS:**
- **STREET 1:** 12525 CHADRON AVE
- **CITY:** HAWTHORNE
- **STATE:** CA
- **ZIP:** 90250
- **BUSINESS PHONE:** 3109780516

**MAIL ADDRESS:**
- **STREET 1:** 12525 CHADRON AVENUE
- **CITY:** HAWTHORNE
- **STATE:** CA
- **ZIP:** 90250

?xml version='1.0' encoding='ASCII'? tm2522961-1_nonfiling - none - 12.1130106s

[**TABLE OF CONTENTS**](#TOC)

#### UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

### SCHEDULE 14A

#### Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.)
Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐

Preliminary Proxy Statement

☐

**Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** 

☒

Definitive Proxy Statement

☐

Definitive Additional Materials

☐

Soliciting Material under §240.14a-12

### OSI Systems, Inc.
(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

☒

No fee required.

☐

Fee paid previously with preliminary materials.

☐

Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11.

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[**TABLE OF CONTENTS**](#TOC)

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[**TABLE OF CONTENTS**](#TOC)

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| | | |
|:---|:---|:---|
| ![[MISSING IMAGE: img_silhouette-bw.jpg]](img_silhouette-bw.jpg)  | ![[MISSING IMAGE: img_cyber-bw.jpg]](img_cyber-bw.jpg)  | ![[MISSING IMAGE: img_doctor-bw.jpg]](img_doctor-bw.jpg)  |
| **SECURITY**  | **OPTOELECTRONICS AND <br> MANUFACTURING**  | **HEALTHCARE**  |
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Checked Baggage Screening, <br> Baggage and Parcel Inspection <br>▪ <br>Cargo and Vehicle Inspection <br>▪ <br>People Screening, Radiation, Explosive, Narcotics & Contraband Trace Detection, and Radio Frequency Equipment <br>▪ <br>Integrated Solutions <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Custom Design and Manufacturing for Military, Aerospace, Healthcare, Security, Telecommunications, Industrial and Other Markets <br>▪ <br>OEM Contract Manufacturing <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Patient Monitoring and Connectivity <br>▪ <br>Cardiology and Remote Monitoring <br>▪ <br>Supplies and Accessories <br>|

---

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| | | |
|:---|:---|:---|
| **$1.7B**  | Fiscal Year 2025 Sales  | OSI Systems, Inc. (NASDAQ: OSIS) is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications in homeland security, healthcare, defense and aerospace. At our core, we are a technology solutions company. Our research and development teams are focused on expanding and enhancing our product portfolios and delivering breakthrough technology solutions designed to keep pace with the rapidly changing marketplace. Our three operating divisions serve a large and growing worldwide customer base through an extensive distributor network and global operations in the Americas, the European Union, Middle East and Asia Pacific.  |
| **$8.71**  | **Fiscal Year 2025 EPS**  | OSI Systems, Inc. (NASDAQ: OSIS) is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications in homeland security, healthcare, defense and aerospace. At our core, we are a technology solutions company. Our research and development teams are focused on expanding and enhancing our product portfolios and delivering breakthrough technology solutions designed to keep pace with the rapidly changing marketplace. Our three operating divisions serve a large and growing worldwide customer base through an extensive distributor network and global operations in the Americas, the European Union, Middle East and Asia Pacific.  |
| **$1.8B**  | **Backlog at June 30, 2025**  | OSI Systems, Inc. (NASDAQ: OSIS) is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications in homeland security, healthcare, defense and aerospace. At our core, we are a technology solutions company. Our research and development teams are focused on expanding and enhancing our product portfolios and delivering breakthrough technology solutions designed to keep pace with the rapidly changing marketplace. Our three operating divisions serve a large and growing worldwide customer base through an extensive distributor network and global operations in the Americas, the European Union, Middle East and Asia Pacific.  |
| **7337**  | **Employees at June 30, 2025**  | OSI Systems, Inc. (NASDAQ: OSIS) is a vertically integrated designer and manufacturer of specialized electronic systems and components for critical applications in homeland security, healthcare, defense and aerospace. At our core, we are a technology solutions company. Our research and development teams are focused on expanding and enhancing our product portfolios and delivering breakthrough technology solutions designed to keep pace with the rapidly changing marketplace. Our three operating divisions serve a large and growing worldwide customer base through an extensive distributor network and global operations in the Americas, the European Union, Middle East and Asia Pacific.  |

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#### In all that we do, we insist that our values guide our conduct, and our conduct represents our values.

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| | | | |
|:---|:---|:---|:---|
| ![[MISSING IMAGE: ic_integrity-bw.jpg]](ic_integrity-bw.jpg)  | ![[MISSING IMAGE: ic_accountability-bw.jpg]](ic_accountability-bw.jpg)  | ![[MISSING IMAGE: ic_innovation-bw.jpg]](ic_innovation-bw.jpg)  | ![[MISSING IMAGE: ic_teamwork-bw.jpg]](ic_teamwork-bw.jpg)  |
| **INTEGRITY**  | **ACCOUNTABILITY**  | **INNOVATION**  | **TEAMWORK**  |
| &nbsp;&nbsp;&nbsp; ▪ <br>We are honest and ethical. <br>▪ <br>We address issues openly and directly. <br>▪ <br>We demonstrate respect for our colleagues and customers. <br>| &nbsp;&nbsp;&nbsp; ▪ <br>We do what we say we will do. <br>▪ <br>We take personal responsibility for achieving results. <br>▪ <br>We acknowledge and learn from our mistakes. <br>| &nbsp;&nbsp;&nbsp; ▪ <br>We encourage innovation and creativity in everything we do. <br>▪ <br>We develop products which create value for our customers. <br>▪ <br>We anticipate and adapt to market needs and trends. <br>| &nbsp;&nbsp;&nbsp; ▪ <br>We collaborate and support each other. <br>▪ <br>We strive to live our values and achieve the Company's mission. <br>▪ <br>We challenge each other to be efficient and productive. <br>|

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| | | |
|:---|:---|:---|
| ![[MISSING IMAGE: ic_quotes-pn.gif]](ic_quotes-pn.gif)  | At OSI, we recognize the vital role we play in shaping solutions that make environments safer and healthier for everyone. We're driven by a commitment to innovation that delivers real-world benefits across the globe. Turning bold ideas into practical outcomes is what motivates us every day, and I'm honored to guide that mission." <br> —**Ajay Mehra** <br> CEO and President, OSI Systems, Inc.  | ![[MISSING IMAGE: ph_ajaymehragray-bw.gif]](ph_ajaymehragray-bw.gif)  |

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[**TABLE OF CONTENTS**](#TOC)

![[MISSING IMAGE: lg_osisystemsincnew-pn.jpg]](lg_osisystemsincnew-pn.jpg)

12525 Chadron Avenue

Hawthorne, California 90250

## Notice of Annual Meeting of Stockholders

### DEAR STOCKHOLDER,
You are cordially invited to attend the Annual Meeting of Stockholders of OSI Systems, Inc.

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **MEETING <br> INFORMATION** | **ITEMS OF <br> BUSINESS** | **ITEMS OF <br> BUSINESS** | | | |
| LOGISTICS  | AGENDA  | AGENDA  | BOARD <br> RECOMMENDATION | BOARD <br> RECOMMENDATION | SEE PAGE  |
| ![[MISSING IMAGE: ic_datetime-pn.jpg]](ic_datetime-pn.jpg) <br> DATE & TIME <br> Thursday, December 11, 2025 <br> 10:00 a.m., Pacific Time  | **1**  | To elect six directors to hold office for a one-year term and until their respective successors are elected and qualified  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR** all <br> nominees  | [5](#tP1OD)  |
| ![[MISSING IMAGE: ic_datetime-pn.jpg]](ic_datetime-pn.jpg) <br> DATE & TIME <br> Thursday, December 11, 2025 <br> 10:00 a.m., Pacific Time  | **2**  | To ratify the appointment of Grant Thornton LLP as the Company's independent registered public accounting firm for the fiscal year ending June 30, 2026  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR**  | [20](#tP2OS)  |
|  | **3**  | To conduct an advisory vote to approve the Company's named executive officer compensation for the fiscal year ended June 30, 2025  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR**  | [23](#tP3VT)  |
| ![[MISSING IMAGE: ic_recorddate-pn.jpg]](ic_recorddate-pn.jpg) <br> RECORD DATE <br> All holders of OSI Systems, Inc. common stock as of the close of business on October 15, 2025 are entitled to vote at the Annual Meeting  | **4**  | To transact such other business as may properly come before the Annual Meeting or any adjournment thereof  |  |  |  |
| ![[MISSING IMAGE: ic_recorddate-pn.jpg]](ic_recorddate-pn.jpg) <br> RECORD DATE <br> All holders of OSI Systems, Inc. common stock as of the close of business on October 15, 2025 are entitled to vote at the Annual Meeting  | The Proxy Statement describes the items in detail and also provides information about our Board of Directors and executive officers. Please also refer to our Annual Report on Form 10-K for the fiscal year ended June 30, 2025, which I encourage you to read. It includes our audited, consolidated financial statements and information about our operations, markets and products.  | The Proxy Statement describes the items in detail and also provides information about our Board of Directors and executive officers. Please also refer to our Annual Report on Form 10-K for the fiscal year ended June 30, 2025, which I encourage you to read. It includes our audited, consolidated financial statements and information about our operations, markets and products.  | The Proxy Statement describes the items in detail and also provides information about our Board of Directors and executive officers. Please also refer to our Annual Report on Form 10-K for the fiscal year ended June 30, 2025, which I encourage you to read. It includes our audited, consolidated financial statements and information about our operations, markets and products.  | The Proxy Statement describes the items in detail and also provides information about our Board of Directors and executive officers. Please also refer to our Annual Report on Form 10-K for the fiscal year ended June 30, 2025, which I encourage you to read. It includes our audited, consolidated financial statements and information about our operations, markets and products.  | The Proxy Statement describes the items in detail and also provides information about our Board of Directors and executive officers. Please also refer to our Annual Report on Form 10-K for the fiscal year ended June 30, 2025, which I encourage you to read. It includes our audited, consolidated financial statements and information about our operations, markets and products.  |
| ![[MISSING IMAGE: ic_recorddate-pn.jpg]](ic_recorddate-pn.jpg) <br> RECORD DATE <br> All holders of OSI Systems, Inc. common stock as of the close of business on October 15, 2025 are entitled to vote at the Annual Meeting  | **VOTING** <br> **Your vote is very important.** Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  | **VOTING** <br> **Your vote is very important.** Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  | **VOTING** <br> **Your vote is very important.** Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  | **VOTING** <br> **Your vote is very important.** Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  | **VOTING** <br> **Your vote is very important.** Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  |

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| ![[MISSING IMAGE: ic_internet-pn.jpg]](ic_internet-pn.jpg)  | ![[MISSING IMAGE: ic_mobile-pn.jpg]](ic_mobile-pn.jpg)  | ![[MISSING IMAGE: ic_mail-pn.jpg]](ic_mail-pn.jpg)  | ![[MISSING IMAGE: ic_scan-pn.jpg]](ic_scan-pn.jpg)  | ![[MISSING IMAGE: ic_meeting-pn.jpg]](ic_meeting-pn.jpg)  |
| Place your vote via <br> Internet, 24/7, at <br> **www.proxyvote.com**  | Call toll-free, 24/7, <br> (if US or Canada) <br> 1 (800) 690-6903  | Sign, date and return <br> your proxy card or voting <br> instruction form by mail  | Scan the QR code <br> ![[MISSING IMAGE: ic_qrcode-bw.jpg]](ic_qrcode-bw.jpg)  | Attend the <br> meeting and <br> cast your <br> ballot  |

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| |
|:---|
| **IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON DECEMBER 11, 2025**  |
| This Proxy Notice, the accompanying Proxy Statement and Annual Report on Form 10-K for the fiscal year ended June 30, 2025 are available at **http://www.proxyvote.com**.  |

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Thank you for your ongoing support and continued interest in OSI Systems, Inc.

By order of the Board of Directors,

**Victor S. Sze**

Executive Vice President, General Counsel, and Secretary

October 22, 2025

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[**TABLE OF CONTENTS**](#TOC)

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Notice of Annual Meeting of Stockholders

![[MISSING IMAGE: img_lake-bw.jpg]](img_lake-bw.jpg)

OSI Systems is pleased to deliver proxy materials electronically via the Internet. Electronic delivery allows OSI Systems to provide you with the information you need for the annual meeting, while reducing environmental impacts and costs.

OSI Systems is committed to making the world safer and healthier. We have a responsibility to be good stewards of the environment in which we operate. We encourage OSI Systems stockholders to voluntarily elect to receive future proxy and annual report materials electronically.

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| | | |
|:---|:---|:---|
| ![[MISSING IMAGE: ic_internet-pn.jpg]](ic_internet-pn.jpg)  | Enroll online by following the instructions at **www.proxyvote.com**  | Enroll online by following the instructions at **www.proxyvote.com**  |
| ![[MISSING IMAGE: ic_scan-pn.jpg]](ic_scan-pn.jpg)  | Scan the QR code to vote using your mobile device, sign up for e-delivery or download annual meeting materials  | ![[MISSING IMAGE: ic_qrcode-bwlr.jpg]](ic_qrcode-bwlr.jpg)  |

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| | | | |
|:---|:---|:---|:---|
| ![[MISSING IMAGE: ic_faster-pn.jpg]](ic_faster-pn.jpg)  | ![[MISSING IMAGE: ic_economical-pn.jpg]](ic_economical-pn.jpg)  | ![[MISSING IMAGE: ic_cleaner-pn.jpg]](ic_cleaner-pn.jpg)  | ![[MISSING IMAGE: ic_convenient-pn.jpg]](ic_convenient-pn.jpg)  |
| **FASTER** | **ECONOMICAL** | **CLEANER** | **CONVENIENT** |

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[**TABLE OF CONTENTS**](#TOC)

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PROXY SUMMARY

**Table of Contents**

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| | |
|:---|:---|
| **[1](#tPRSU)** | **[PROXY SUMMARY](#tPRSU)** |
| [1](#tMEAG)  | [Meeting Agenda](#tMEAG) |
| [2](#tESAG)  | [Environmental, Social and Governance Initiatives](#tESAG) |
| **[5](#tP1OD)**  | **[PROPOSAL 1—ELECTION OF DIRECTORS](#tP1OD)** |
| [5](#tREVO)  | [Required Vote](#tREVO) |
| [6](#tCUDI)  | [Current Directors](#tCUDI) |
| [11](#tRADO)  | [Relationships among Directors or Executive Officers](#tRADO) |
| [11](#tDICO)  | [Director Compensation](#tDICO) |
| **[13](#tCOGO)** | **[CORPORATE GOVERNANCE](#tCOGO)** |
| [13](#tBRIR)  | [Board Role in Risk Oversight](#tBRIR) |
| [13](#tBLSA)  | [Board Leadership Structure and Lead Independent Director](#tBLSA) |
| [14](#tCTD)  | [Commitment to Diversity](#tCTD) |
| [15](#tBMIA)  | [Board Meetings, Independence and Committees of the Board](#tBMIA) |
| [18](#tAMA)  | [Annual Meeting Attendance](#tAMA) |
| [18](#tDNP)  | [Director Nomination Process](#tDNP) |
| [18](#tCCIA)  | [Compensation Committee Interlocks and Insider Participation](#tCCIA) |
| [19](#tSTCO)  | [Stockholder Communications](#tSTCO) |
| [19](#tCRAR)  | [Certain Relationships and Related Transactions](#tCRAR) |
| **[20](#tP2OS)**  | **[PROPOSAL 2—RATIFICATION OF SELECTION OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM](#tP2OS)** |
| [20](#tREVO1)  | [Required Vote](#tREVO1) |
| [21](#tAUFE)  | [Audit Fees](#tAUFE) |
| [21](#tACPP)  | [Audit Committee's Pre-Approval Policy](#tACPP) |
| [21](#tIND)  | [Independence](#tIND) |
| [22](#tROTA)  | [Report of the Audit Committee](#tROTA) |
| **[23](#tP3VT)**  | **[PROPOSAL 3—ADVISORY VOTE TO APPROVE THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS](#tP3VT)** |
| [23](#tSUM)  | [Summary](#tSUM) |
| [26](#tREVO2)  | [Required Vote](#tREVO2) |

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| | |
|:---|:---|
| **[27](#tEXCO)**  | **[EXECUTIVE COMPENSATION](#tEXCO)** |
| [27](#tEXOF)  | [Executive Officers](#tEXOF) |
| [31](#tCDAA)  | [Compensation Discussion and Analysis](#tCDAA) |
| [43](#tCOTA)  | [Compensation Tables](#tCOTA) |
| [43](#tSCT)  | &nbsp;&nbsp;&nbsp; [Summary Compensation Table](#tSCT)  |
| [45](#tGOPA)  | &nbsp;&nbsp;&nbsp; [Grants of Plan-Based Awards Table](#tGOPA)  |
| [46](#tOEAA)  | &nbsp;&nbsp;&nbsp; [Outstanding Equity Awards at Fiscal Year-End](#tOEAA)  |
| [47](#tOEAS)  | &nbsp;&nbsp;&nbsp; [Option Exercises and Stock Vested Table](#tOEAS)  |
| [47](#tPARA)  | &nbsp;&nbsp;&nbsp; [Pay Ratio](#tPARA)  |
| [48](#tPVP)  | &nbsp;&nbsp;&nbsp; [Pay versus Performance](#tPVP)  |
| [51](#tPEBE)  | &nbsp;&nbsp;&nbsp; [Pension Benefits](#tPEBE)  |
| [52](#tNDC)  | &nbsp;&nbsp;&nbsp; [Nonqualified Deferred Compensation](#tNDC)  |
| [53](#tEMAG)  | &nbsp;&nbsp;&nbsp; [Employment Agreements](#tEMAG)  |
| [54](#tPPUT)  | &nbsp;&nbsp;&nbsp; [Potential Payment Upon Termination of Employment or Change in Control](#tPPUT)  |
| [55](#tCCR)  | [Compensation Committee Report](#tCCR) |
| **[56](#tSOOC)**  | **[SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT](#tSOOC)** |
| [56](#tMT5S)  | [More than 5% Stockholders](#tMT5S) |
| [57](#tDAEO)  | [Directors and Executive Officers](#tDAEO) |
| [58](#tS1BO)  | [Section 16(a) Beneficial Ownership Reporting Compliance](#tS1BO) |
| [58](#tECPI)  | [Equity Compensation Plan Information](#tECPI) |
| **[59](#tIATA)**  | **[INFORMATION ABOUT THE ANNUAL MEETING AND VOTING](#tIATA)** |
| [59](#tGEIN)  | [General Information](#tGEIN) |
| [59](#tNOIA)  | &nbsp;&nbsp;&nbsp; [Notice of Internet Availability of Proxy Materials](#tNOIA)  |
| [59](#tVOPR)  | &nbsp;&nbsp;&nbsp; [Voting Procedures](#tVOPR)  |
| [60](#tRDSO)  | &nbsp;&nbsp;&nbsp; [Record Date, Share Ownership and Quorum](#tRDSO)  |
| [60](#tAABN)  | &nbsp;&nbsp;&nbsp; [Abstentions and Broker Non-Votes](#tAABN)  |
| [61](#tPBVR)  | &nbsp;&nbsp;&nbsp; [Proposals, Board Voting Recommendations and Votes Required](#tPBVR)  |
| [61](#tSOP)  | &nbsp;&nbsp;&nbsp; [Solicitation of Proxies](#tSOP)  |
| **[62](#tADIN)** | **[ADDITIONAL INFORMATION](#tADIN)** |
| [62](#tAOAR) | [Availability of Annual Report on Form 10-K](#tAOAR) |
| [62](#tHOPM)  | [Householding of Proxy Materials](#tHOPM) |
| [62](#tSTPR)  | [Stockholder Proposals](#tSTPR) |
| [63](#tIBR)  | [Incorporation by Reference](#tIBR) |
| [63](#tOTBU)  | [Other Business](#tOTBU) |

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Proxy Summary

## Proxy Summary
In this Proxy Statement the terms "OSI Systems," "the Company," "we," "us," and "our" refer to OSI Systems, Inc. Certain statements in this Proxy Statement, other than historical information, including statements relating to our business plans and objectives, and the assumptions upon which those statements are based, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements may appear throughout this report. Words such as "project," "believe," "anticipate," "plan," "expect," "intend," "may," "should," "will," "would," and similar words and expressions are intended to identify forward-looking statements. Forward-looking statements are not guarantees of future performance and involve uncertainties, risks, assumptions and contingencies, many of which are outside our control. Assumptions upon which our forward-looking statements are based could prove to be inaccurate, and actual results may differ materially from those expressed in or implied by such forward-looking statements. Forward-looking statements are subject to risks and uncertainties which may cause actual results to differ materially, including but not limited to the risks and uncertainties identified in Item 1A of our Annual Report for the year ended June 30, 2025, filed on Form 10-K with the Securities and Exchange Commission ("SEC") on August 25, 2025. The Proxy Statement speaks only as of the date it has been made available to stockholders, and we undertake no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events, or otherwise. All website addresses set forth in this Proxy Statement are for information only and are not intended to be an active link or to incorporate any website information into this document.

This Proxy Statement and the accompanying Proxy Card and materials are first being sent to stockholders of OSI Systems, Inc. or made available electronically on or about October 22, 2025.

This summary highlights key information presented elsewhere in this year's Proxy Statement. This section does not contain all the information that you should consider, and you should read the entire Proxy Statement before voting.

### MEETING AGENDA

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|:---|:---|:---|:---|:---|:---|:---|
| PROPOSAL  | PROPOSAL  | BOARD VOTING <br> RECOMMENDATION  | BOARD VOTING <br> RECOMMENDATION  | PAGE <br> REFERENCE  | EFFECT OF BROKER <br> NON-VOTES AND <br> ABSTENTIONS  | VOTES REQUIRED <br> FOR APPROVAL  |
| **1**  | Election of six directors  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR** all <br> nominees  | 5  | No effect  | Plurality of <br> votes cast  |
| **2**  | Ratification of the appointment of Grant Thornton LLP as our independent registered public accounting firm for the fiscal year ending June 30, 2026  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR**  | 20  | No effect  | Majority of <br> votes cast  |
| **3**  | Advisory vote to approve the compensation of our named executive officers for the fiscal year ended June 30, 2025  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR**  | 23  | No effect  | Majority of <br> votes cast  |

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OSI SYSTEMS, INC. 2025 Proxy Statement \| 1

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Proxy Summary

At the time of printing this Proxy Statement, our management was not aware of any other matters to be presented for action at the Annual Meeting. If, however, other matters which are not now known to management should properly come before the Annual Meeting, the proxies hereby solicited will be exercised on such matters in accordance with the best judgment of the proxy holders.

### ENVIRONMENTAL, SOCIAL AND GOVERNANCE INITIATIVES

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|:---|:---|
| OSI Systems prioritizes environmental, social, and governance ("ESG") issues that align with our core values and our mission. Our ESG initiatives involve different levels of our company, from our Board and our CEO who provide leadership and oversight to our employees and stakeholders who implement and support our ESG goals. We have an executive-level ESG Steering Committee that helps manage internal initiatives and prepares periodic reports to our stakeholders on our progress.  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_ethics-pn.gif]](ic_ethics-pn.gif) <br> **View our 2025 Sustainability Summary at: <br> https://www.osi-systems.com/<br>wp-content/uploads/<br>Sustainability_and_the_<br>Environment_at_OSI.pdf** |

---

#### GLOBAL SUSTAINABILITY PROGRAM

---

| | |
|:---|:---|
| OSI Systems is committed to making the world safer and healthier. We have a responsibility to be good stewards of the environment in which we operate. We endeavor to reduce our impact on the environment by promoting environmental stewardship throughout our organization, and we will continue to look for new, and to improve existing, initiatives to reduce our carbon footprint. We are also assessing the impact of climate change on our operations and supply chain as one aspect of our enterprise risk management review process and will continue to do so on an ongoing basis. Our Global Sustainability Program is deeply integrated into our culture of inclusion and environmental responsibility.  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_ethics-pn.gif]](ic_ethics-pn.gif) <br> View our Global Sustainability <br> Program at: <br> **https://www.osi-systems.com/**<br>**about-osi/sustainability/** |

---

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_environmental-ko.gif]](ic_environmental-ko.gif) <br> **Environmental Compliance**  | &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>OSI is committed to complying with applicable environmental laws and regulations. <br>▪ <br>Many of our businesses have achieved certifications under strict environmental standards including ISO 14001: Environmental Management System. <br>|

---

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_energy-ko.gif]](ic_energy-ko.gif) <br> Energy Usage  | &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Our product development teams strive to ensure our products and services are energy efficient. <br>▪ <br>Renewable energy sources are integrated into our operations and supply chain, and we plan to expand where possible. <br>▪ <br>We are actively reviewing our processes to identify ways to reduce overall energy usage. <br>|

---

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_water-ko.gif]](ic_water-ko.gif) <br> Water Usage  | &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Our teams are committed to identifying meaningful ways to reduce our water utilization. <br>▪ <br>We acknowledge the right to water as a basic human right. <br>▪ <br>We ensure access to safe drinking water and sanitary conditions for our staff both at our facilities and at our vendors' facilities. <br>|

---

2 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Proxy Summary

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_emission-ko.gif]](ic_emission-ko.gif) <br> Reduction of <br> Emissions  | &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>We are committed to reducing our greenhouse gas (GHG) emissions across our global operations. <br>▪ <br>We are working on identifying areas for GHG reduction, including identifying potential changes to manufacturing operations and travel policies to reduce emissions of air pollutants and CO2. <br>|

---

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_vendor-ko.gif]](ic_vendor-ko.gif) <br> Suppliers and <br> Vendors  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>We expect our business partners to: <br>&nbsp;&nbsp;&nbsp;&nbsp; 1. <br>operate in a manner that is protective of the environment, <br>&nbsp;&nbsp;&nbsp;&nbsp; 2. <br>comply with all applicable environmental regulations and obtain all necessary environmental permits, licenses or other relevant authorizations, <br>&nbsp;&nbsp;&nbsp;&nbsp; 3. <br>support our reasonable inquiries about emissions and environmental impacts of our operations, and <br>&nbsp;&nbsp;&nbsp;&nbsp; 4. <br>establish systems to ensure the proper management of waste, air emissions and wastewater discharges. <br>|

---

#### CYBERSECURITY

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_cybersecurity-ko.gif]](ic_cybersecurity-ko.gif) <br> **Cybersecurity Training**  | &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>We are proud to have 98% of eligible employees complete cybersecurity training for fiscal year 2025. <br>|

---

#### ETHICS AND COMPLIANCE

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_governance-ko.gif]](ic_governance-ko.gif) <br> Governance  | The Board at OSI Systems sets high standards for the Company's employees, officers and directors. Implicit in this philosophy is the importance of sound corporate governance. It is the duty of the Board of Directors to oversee the management of the Company's business. To fulfill its responsibility and to discharge its duty, the Board of Directors follows the procedures and standards that are set forth in our Corporate Governance Guidelines. These guidelines are subject to modification from time to time as the Board deems appropriate in the best interests of the Company or as required by applicable laws and regulations.  |

---

---

| | |
|:---|:---|
| *View our Corporate Governance Guidelines at:* | *View our Corporate Governance Guidelines at:* |
|  | **https://investors.osi-systems.com/investor-relations/company-information/<br>corporate-governance**  |

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OSI SYSTEMS, INC. 2025 Proxy Statement \| 3

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Proxy Summary

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_ethics-ko.gif]](ic_ethics-ko.gif) <br> Code of Ethics <br> and Conduct  | At OSI Systems, we are proud of our commitment to ethics and integrity and the way we have embedded our core values into all our businesses. We—through our people, values, programs and policies—have made it a priority to help ensure that we have an ethical culture where everyone embraces a sense of personal responsibility for doing the right thing in the right way. <br> OSI Systems and our global subsidiaries are committed to operating according to the highest ethical standards and in full compliance with applicable laws and regulations. <br> We have adopted a Code of Ethics and Conduct, which applies to all of our directors, officers (including our principal executive officer, principal financial officer and principal accounting officer) and employees. A copy of the Code of Ethics and Conduct is attached as an exhibit to our Current Report on Form 8-K filed with the SEC on May 23, 2016.  |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *View our Code of Ethics at:*  | *View our Code of Ethics at:*  | *A copy of the Code of Ethics and Conduct may also be obtained, <br>without charge, under the Investor Relations section of our <br>website or by written request to:*  | *A copy of the Code of Ethics and Conduct may also be obtained, <br>without charge, under the Investor Relations section of our <br>website or by written request to:*  | *A copy of the Code of Ethics and Conduct may also be obtained, <br>without charge, under the Investor Relations section of our <br>website or by written request to:*  | *A copy of the Code of Ethics and Conduct may also be obtained, <br>without charge, under the Investor Relations section of our <br>website or by written request to:*  |
| ![[MISSING IMAGE: ic_arrowdown-ko.gif]](ic_arrowdown-ko.gif)  | https://osi-systems.com/code-of-ethics  | ![[MISSING IMAGE: ic_arrowdown-ko.gif]](ic_arrowdown-ko.gif)  | https://investors.osi-systems.com  | ![[MISSING IMAGE: ic_mail-ko.gif]](ic_mail-ko.gif)  | OSI Systems, Inc. <br> Attention: Corporate Secretary <br> 12525 Chadron Avenue <br> Hawthorne, <br> California 90250  |
| We intend to disclose any changes in or waivers from this Code of Ethics and Conduct on the same website or by filing with the SEC a Current Report on Form 8-K, in each case if such disclosure is required by the rules of the SEC or Nasdaq.  | We intend to disclose any changes in or waivers from this Code of Ethics and Conduct on the same website or by filing with the SEC a Current Report on Form 8-K, in each case if such disclosure is required by the rules of the SEC or Nasdaq.  | We intend to disclose any changes in or waivers from this Code of Ethics and Conduct on the same website or by filing with the SEC a Current Report on Form 8-K, in each case if such disclosure is required by the rules of the SEC or Nasdaq.  | We intend to disclose any changes in or waivers from this Code of Ethics and Conduct on the same website or by filing with the SEC a Current Report on Form 8-K, in each case if such disclosure is required by the rules of the SEC or Nasdaq.  | We intend to disclose any changes in or waivers from this Code of Ethics and Conduct on the same website or by filing with the SEC a Current Report on Form 8-K, in each case if such disclosure is required by the rules of the SEC or Nasdaq.  | We intend to disclose any changes in or waivers from this Code of Ethics and Conduct on the same website or by filing with the SEC a Current Report on Form 8-K, in each case if such disclosure is required by the rules of the SEC or Nasdaq.  |

---

---

| | |
|:---|:---|
| ![[MISSING IMAGE: ic_humanrights-ko.gif]](ic_humanrights-ko.gif) <br> Human Rights <br> Policy  | OSI Systems is committed to operating with integrity and in accordance with our values. We believe in protecting human rights and playing a positive role in the communities in which we operate. <br> Human rights are basic standards of treatment to which all people are entitled. To that end, our global organization supports and operates in accordance with the spirit and intent of the United National Universal Declaration of Human Rights and the UN Global Compact principles on human rights and labor. <br> Respecting these rights means ensuring that our products, no matter where they are made, are manufactured in an environment that demonstrates respect for the people who make them and use them. It also means respecting the rights of people living in the communities around our facilities and offices, and those of our suppliers, who may be affected by these operations. <br> We are committed to ensuring that our business affiliates, including suppliers, vendors, distributors, and representatives hold themselves to the same standards.  |

---

4 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Proposal 1—Election of Directors

## Proposal 1 — Election of Directors

---

| | |
|:---|:---|
| What am I voting on and how should I vote?  | You are being asked to elect six directors at the Annual Meeting. Each of the directors elected at the Annual Meeting will commence their term at the end of the Annual Meeting until the next annual meeting of the Company's stockholders, or until a successor has been elected and qualified, or until such director's earlier resignation or removal.  |
| What am I voting on and how should I vote?  | We believe that each of the nominees is sufficiently qualified to lead the Company in the best interest of stockholders.  |

---

Our Board currently consists of seven members. At each annual meeting of stockholders, directors are elected for a term of one year to succeed those directors whose terms expire on the annual meeting date. Mr. Luskin has informed us of his decision to retire from our Board at the end of his current term. Our Board has determined, in accordance with our Bylaws, that upon the end of Mr. Luskin's current term, the size of the Board will be six members.

The six candidates nominated for election as directors at the Annual Meeting are:

▪ Deepak Chopra ▪ William F. Ballhaus ▪ Gerald Chizever <br> ▪ Ajay Mehra ▪ Kelli Bernard ▪ James B. Hawkins

All of our director nominees are currently directors of the Company and, except for Ajay Mehra who was appointed to fill a vacancy after the 2024 annual meeting of stockholders, were previously elected to serve on the Board by our stockholders.

The enclosed Proxy will be voted in favor of these individuals unless other instructions are given. If elected, the nominees will serve as directors until our next annual meeting of stockholders, and until their successors are elected and qualified. If any nominee declines to serve or becomes unavailable for any reason, or if a vacancy occurs before the election (although we know of no reason to anticipate that this will occur), the proxies may be voted for such substitute nominees as the Board may designate.

### REQUIRED VOTE
Holders of proxies solicited by this Proxy Statement will vote the proxies received by them as directed on the Proxy or, if no direction is made, for each of the above-named nominees. The election of directors requires a plurality of the votes cast at the Annual Meeting.

Proposal 1 is considered a "non routine" matter and, accordingly, brokerage firms and nominees do not have the authority to vote their clients' unvoted shares on Proposal 1 or to vote their clients' shares if the clients have not furnished voting instructions within a specified period of time prior to the Annual Meeting. Abstentions and broker non-votes will not be counted as votes cast and will have no effect on the outcome of the vote on Proposal 1.

If a quorum is present and voting, the six nominees for directors receiving the highest number of votes will be elected as directors.

 **The Board of Directors unanimously recommends a vote FOR the election each of the director nominees.** 

<br> OSI SYSTEMS, INC. 2025 Proxy Statement \| 5

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Proposal 1—Election of Directors

### CURRENT DIRECTORS

---

| | | | |
|:---|:---|:---|:---|
| NAME  | AGE  | POSITION  | DIRECTOR SINCE  |
| Deepak Chopra | 74  | Executive Chairman of the Board<sup>(7)</sup> | 1987  |
| Ajay Mehra | 63  | Director, President and Chief Executive Officer  | 2025  |
| William F. Ballhaus<sup>(1)(2)(5)</sup> | 80  | Director | 2010  |
| Kelli Bernard<sup>(3)(4)</sup> | 56  | Director | 2019  |
| Gerald Chizever<sup>(4)(5)</sup> | 81  | Director | 2016  |
| James B. Hawkins<sup>(1)(2)(3)(5)</sup>  | 69  | Director | 2015  |
| Meyer Luskin<sup>(1)(2)(3)(4)(6)</sup> | 100  | Director | 1990  |

---

(1) Member of Audit Committee

(2) Member of Compensation Committee

(3) Member of Nominating and Governance Committee

(4) Member of Risk Management Committee

(5) Member of the Technology Committee

(6) Mr. Luskin has informed the Board that he is retiring at the end of his current term and is therefore not a nominee for re-election to the Board.

(7) Effective January 1, 2026, Mr. Chopra's role will change from Executive Chairman of the Board to Chairman of the Board.

#### BUSINESS EXPERIENCE

---

| | | |
|:---|:---|:---|
| **Deepak Chopra**  | **Executive Chairman of the Board since January 2025 <br> Director since 1987**  | **Executive Chairman of the Board since January 2025 <br> Director since 1987**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BOARD COMMITTEES <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>None <br>![[MISSING IMAGE: tb_deepak-pn.jpg]](tb_deepak-pn.jpg)  | CAREER HIGHLIGHTS <br> Mr. Chopra is our founder and currently serves as Executive Chairman of the Board. Prior to that, Mr. Chopra served as President and Chief Executive Officer since our inception in May 1987 until December 31, 2024. <br> From 1976 to 1979 and from 1980 to 1987, Mr. Chopra held various positions with ILC, a publicly held manufacturer of lighting products, including serving as Chairman of the Board of Directors, Chief Executive Officer, President and Chief Operating Officer of its United Detector Technology division. In 1990, we acquired certain assets of ILC's United Detector Technology division.  | Mr. Chopra has also held various positions with Intel Corporation, TRW Semiconductors and RCA Semiconductors. <br> EDUCATION <br> Mr. Chopra holds a Bachelor of Science degree in Electronics from Punjab Engineering College in Chandigarh, Punjab, India and a Master of Science degree in Semiconductor Electronics from the University of Massachusetts, Amherst. <br> QUALIFICATIONS <br> Among other reasons, Mr. Chopra was selected to serve as a director because of his expertise in the field of electrical engineering as well as his long-standing experience in successfully managing our Company.  |

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6 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Proposal 1—Election of Directors

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| | | |
|:---|:---|:---|
| **Ajay Mehra**  | **Director, President and Chief Executive Officer <br> Director since January 2025**  | **Director, President and Chief Executive Officer <br> Director since January 2025**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BOARD COMMITTEES <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>None <br>![[MISSING IMAGE: tb_ajaymehra-pn.jpg]](tb_ajaymehra-pn.jpg)  | CAREER HIGHLIGHTS <br> Mr. Mehra is currently President and Chief Executive Officer of the Company. Prior to that, Mr. Mehra served as Executive Vice President and President of the Company's Security division until his appointment as President and Chief Executive Officer on January 1, 2025. Mr. Mehra joined the Company as Controller in 1989 and served as Vice President and Chief Financial Officer from November 1992 until November 2002, when he was named the Company's Executive Vice President. <br> Prior to joining the Company, Mr. Mehra held various financial positions with Thermador/Waste King, a household appliance company, Presto Food Products, Inc., and United Detector Technology.  | EDUCATION <br> Mr. Mehra holds a Bachelor of Arts degree from the School of Business of the University of Massachusetts, Amherst and a Master of Business Administration degree from Pepperdine University. <br> QUALIFICATIONS <br> Among other reasons, Mr. Mehra was selected to serve as a director because of his experience as President and Chief Executive Officer of our Company as well as his long-standing experience in successfully managing our Security division.  |

---

---

| | | |
|:---|:---|:---|
| **William F. Ballhaus, Jr.**  | **Lead Independent Director <br> Director since May 2010**  | **Lead Independent Director <br> Director since May 2010**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BOARD COMMITTEES <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Audit <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Compensation and Benefits <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Technology (Chair) <br>![[MISSING IMAGE: tb_william-pn.jpg]](tb_william-pn.jpg)  | CAREER HIGHLIGHTS <br> From 2000 to 2007, Dr. Ballhaus, now retired, served as President and then also as Chief Executive Officer of Aerospace Corporation, an organization dedicated to the application of science and technology to the solution of critical issues in the nation's space program. <br> Between 1990 and 2000, Dr. Ballhaus' career included positions within the aerospace industry, including Corporate Vice President, Engineering and Technology for Lockheed Martin Corporation and President, Aero and Naval Systems and President, Civil Space & Communications, both for Martin Marietta. <br> Between 1971 and 1989, Dr. Ballhaus worked for the National Aeronautics and Space Administration (NASA), including as Director of its Ames Research Center.  | Dr. Ballhaus has extensive risk management experience gained through the various executive and board positions that he has held. <br> EDUCATION <br> Dr. Ballhaus, who has published more than 40 papers on computational aerodynamics, obtained a Ph.D. in Engineering in 1971 and a BS and MS in Mechanical Engineering in 1967 and 1968, all from the University of California at Berkeley. <br> QUALIFICATIONS <br> Among other reasons, Dr. Ballhaus was selected to serve as a director because of his experience in managing providers of technology and technical services to government agencies.  |

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OSI SYSTEMS, INC. 2025 Proxy Statement \| 7

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Proposal 1—Election of Directors

---

| | | |
|:---|:---|:---|
| **Kelli Bernard**  | **Independent Director <br> Director since December 2019**  | **Independent Director <br> Director since December 2019**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BOARD COMMITTEES <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Nominating and Governance <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Risk Management (Co-Chair) <br>![[MISSING IMAGE: tb_kelli-pn.jpg]](tb_kelli-pn.jpg)  | CAREER HIGHLIGHTS <br> Ms. Bernard is currently the Managing Partner for the Los Angeles office of Lighthouse Public Affairs, a public affairs consultancy in California. <br> Prior to this role, from June 2016 to December 2021, Ms. Bernard has served as an Executive Vice President and National Cities Leader for AECOM, a fully integrated global infrastructure firm. <br> Prior to joining AECOM, from July 2013 through June 2016, Ms. Bernard was Deputy Mayor of Economic Development for Los Angeles Mayor Eric Garcetti. <br> Ms. Bernard is the current vice chair of Homeboy Industries.  | EDUCATION <br> She holds a BA in Sociology from University of California, Berkeley and a Master's degree in Urban Planning from University of California, Los Angeles. <br> QUALIFICATIONS <br> Among other reasons, Ms. Bernard was selected to serve as a director because of her business and economic development and international trade experience.  |

---

---

| | | |
|:---|:---|:---|
| **Gerald Chizever**  | **Independent Director <br> Director since October 2016**  | **Independent Director <br> Director since October 2016**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BOARD COMMITTEES <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Risk Management (Co-Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Technology <br>![[MISSING IMAGE: tb_gerald-pn.jpg]](tb_gerald-pn.jpg)  | CAREER HIGHLIGHTS <br> Mr. Chizever, currently retired, was a partner at the law firm of Loeb & Loeb LLP from 2004 to 2024. Mr. Chizever's practice included mergers and acquisitions, corporate finance, public and private securities offerings, general corporate representation and strategic alliances. Mr. Chizever served as general corporate counsel for public and private companies, advising them in all matters, including business transactions, corporate governance and compliance with governmental regulations.  | EDUCATION <br> He holds a B.B.A. degree in Accounting and a Juris Doctorate from George Washington University. <br> QUALIFICATIONS <br> Among other reasons, Mr. Chizever was selected to serve as a director because of his corporate governance and compliance experience, including his experience in highly regulated industries.  |

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8 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Proposal 1—Election of Directors

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| | | |
|:---|:---|:---|
| **James B. Hawkins**  | **Independent Director <br> Director since December 2015**  | **Independent Director <br> Director since December 2015**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BOARD COMMITTEES <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Audit (Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Compensation and Benefits <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Nominating and Governance <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Technology <br>OTHER CURRENT PUBLIC COMPANY BOARDS <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Iradimed (Nasdaq: IRMD) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>AudioEye (Nasdaq: AEYE) <br>![[MISSING IMAGE: tb_james-pn.jpg]](tb_james-pn.jpg)  | CAREER HIGHLIGHTS <br> From 2004 through July 2018, Mr. Hawkins was the President, Chief Executive Officer and member of the Board of Directors of Natus Medical Incorporated, a leading manufacturer of medical devices and software and a service provider for the newborn care, neurology, sleep, hearing and balance markets. <br> Prior to joining Natus, Mr. Hawkins was President, Chief Executive Officer, and a director of Invivo Corporation, a provider of MRI-safe patient monitoring, and Chief Executive Officer and Chief Financial Officer of Sensor Control Corporation. <br> Mr. Hawkins currently serves as a director of Iradimed Corporation and AudioEye, Inc.  | Mr. Hawkins has extensive risk management experience gained through the various executive and board positions that he has held. <br> EDUCATION <br> He earned his undergraduate degree in Business Commerce from Santa Clara University and holds a Masters of Business Administration degree in Finance from San Francisco State University. <br> QUALIFICATIONS <br> Among other reasons, Mr. Hawkins was selected to serve as a director because of his direct management experience in the medical device area.  |

---

---

| | | |
|:---|:---|:---|
| **Meyer Luskin**  | **Independent Director <br> Director since February 1990**  | **Independent Director <br> Director since February 1990**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BOARD COMMITTEES <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Audit <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Compensation and Benefits (Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Nominating and Governance (Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Risk Management <br>Mr. Luskin has informed the Board that he is retiring at the end of his current term and is therefore not a nominee for re-election to the Board. <br> ![[MISSING IMAGE: tb_meyer-pn.jpg]](tb_meyer-pn.jpg)  | CAREER HIGHLIGHTS <br> Since 1958, Mr. Luskin has served as a Director of Scope Industries, which is engaged principally in the business of recycling and processing food waste products into animal feed, and has also served as its President, Chief Executive Officer and Chairman since 1961. <br> He currently serves as a Director on the Advisory Board of the UCLA Luskin School of Public Affairs. <br> Mr. Luskin was formerly Chairman of the Board of the Santa Monica—UCLA Medical Center and Orthopaedic Hospital, Chairman of the Board of the Orthopaedic Institute for Children (previously known as the Los Angeles Orthopaedic Hospital), a Director of the UCLA Foundation and a Director of the Alliance for College-Ready Public Schools.  | Mr. Luskin also served as a Director of Myricom, Inc., a computer and network infrastructure company. <br> Mr. Luskin has extensive risk management experience gained through the various executive and board positions that he has held. <br> EDUCATION <br> Mr. Luskin holds a Bachelor of Arts degree in Economics from the University of California, Los Angeles and a Masters in Business Administration from Stanford University <br> QUALIFICATIONS <br> Among other reasons, Mr. Luskin was selected to previously serve as a director because of his long-standing experience managing complex business operations.  |

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OSI SYSTEMS, INC. 2025 Proxy Statement \| 9

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Proposal 1—Election of Directors

#### BOARD EXPERTISE
The following table displays certain significant skills and qualifications of our Directors. The Nominating and Governance Committee reviews the composition of the Board as a whole periodically to ensure that the Board maintains a balance of knowledge and experience and to assess the skills and characteristics that the Board may find valuable in the future in light of current and anticipated strategic plans and operating requirements and the long-term interest of stockholders.

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **SKILLS AND EXPERIENCE**  | **SKILLS AND EXPERIENCE**  | **CHOPRA**  | **MEHRA**  | **BALLHAUS**  | **BERNARD**  | **CHIZEVER**  | **HAWKINS**  | **LUSKIN**  |
| ![[MISSING IMAGE: ic_financial-pn.jpg]](ic_financial-pn.jpg) <br> **6/7**  | **FINANCIAL** <br> Experience in accounting, financial disclosure, capital markets and corporate finance, or P&L responsibility  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |
| ![[MISSING IMAGE: ic_industry-pn.jpg]](ic_industry-pn.jpg) <br> **6/7**  | **INDUSTRY** <br> Experience in a senior-level management position with a company in the technology solutions or infrastructure industries  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |
| ![[MISSING IMAGE: ic_governance-pn.jpg]](ic_governance-pn.jpg) <br> **7/7**  | **CORPORATE GOVERNANCE** <br> Experience serving as a public company director, including an understanding of good corporate governance standards and practices  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |
| ![[MISSING IMAGE: ic_senior-pn.jpg]](ic_senior-pn.jpg) <br> **6/7**  | **SENIOR MANAGEMENT** <br> Experience in a senior-level management position at a publicly listed company  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |
| ![[MISSING IMAGE: ic_risk-pn.jpg]](ic_risk-pn.jpg) <br> **7/7**  | **RISK MANAGEMENT** <br> Experience assessing and managing enterprise business or government risks or experience overseeing complex business risk management matters  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |
| ![[MISSING IMAGE: ic_global-pn.jpg]](ic_global-pn.jpg) <br> **6/7**  | **GLOBAL BUSINESS** <br> Experience managing a business with substantial global operations, or experience in and deep, expert knowledge of global politics  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |
| ![[MISSING IMAGE: ic_strategy-pn.jpg]](ic_strategy-pn.jpg) <br> **6/7**  | **STRATEGY / M&A** <br> Mergers and acquisitions and integration experience as a public company officer or director  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |
| ![[MISSING IMAGE: ic_government-pn.jpg]](ic_government-pn.jpg) <br> **5/7**  | **GOVERNMENT** <br> Experience in government and regulatory organizations  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |  | ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)  |  |

---

10 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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![[MISSING IMAGE: lg_osisystemsincnew-pn.jpg]](lg_osisystemsincnew-pn.jpg)

Proposal 1—Election of Directors

### RELATIONSHIPS AMONG DIRECTORS OR EXECUTIVE OFFICERS
There are no arrangements or understandings known to us between any of the directors or nominees for director and any other person pursuant to which any such person was or is to be elected a director.

Ajay Mehra, President and Chief Executive Officer, is the first cousin of Deepak Chopra, Executive Chairman of the Board. Other than this relationship, there are no family relationships among our directors or director nominees or Named Executive Officers (as defined in "Compensation of Executive Officers—Summary Compensation Table").

### DIRECTOR COMPENSATION
All of our non-employee directors are paid an annual cash retainer and receive restricted stock unit ("RSU") awards. A supplemental annual cash retainer is also paid to certain committee chairs, and committee members may receive additional compensation. In fiscal year 2025, directors who were officers or employees did not receive any compensation as directors or for attending meetings of the Board or its committees.

Mr. Chopra's term as Executive Chairman of the Board will run through December 31, 2025. For his service as Executive Chairman during the first half of fiscal year 2026, Mr. Chopra will receive $300,000. Beginning January 1, 2026, Mr. Chopra's role will change from Executive Chairman of the Board to Chairman of the Board.

The principal features of the compensation received by our non-employee directors for fiscal year ended June 30, 2025 are described below.

---

| | | |
|:---|:---|:---|
| | ANNUAL CASH <br> RETAINER <br> ($)  | RSU GRANT <br> ($)  |
| Board Service Retainer | 80000 | 150000 |
| Lead Director Additional Retainer | 35000 | 35000 |
| Committee Chair Additional Retainer |  |  |
| &nbsp;&nbsp;&nbsp; Audit  | 25000 | 25000 |
| &nbsp;&nbsp;&nbsp; Compensation Committee  | 25000 | 35000 |
| &nbsp;&nbsp;&nbsp; Nominating and Governance  | 10000 |  |
| &nbsp;&nbsp;&nbsp; Technology Committee  | 15000 | 35000 |
| &nbsp;&nbsp;&nbsp; Risk Management Committee  | 15000 | 25000 |

---

Each member of the Board other than Mr. Mehra and Mr. Chopra received $3,000 for each Board meeting attended, except for one meeting where the Board members received $1,500. Each member of the Audit Committee received $3,000 for each Audit Committee meeting attended. Each member of the Compensation Committee received $3,000 for each Compensation Committee meeting attended. Each non-Chair member of the Compensation Committee received an RSU grant valued at $5,000. Each member of the Nominating and Governance Committee received $3,000 for each Nominating and Governance Committee meeting attended. Each member of the Technology Committee received $5,000 for the first Technology Committee meeting and $3,000 for each additional meeting attended. Each non-Chair member of the Technology Committee received $10,000 and an RSU grant valued at $20,000. Each member of the Risk Management Committee received $3,000 for each Risk Management Committee meeting attended and an RSU grant valued at $25,000. All RSU awards granted to members of the Board and its committees vest 25% annually over a period of four years from the date of grant. The directors also are reimbursed for expenses incurred in connection with the performance of their services as directors. In certain instances, Board and Committee members will agree to receive a reduced meeting fee.

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Proposal 1—Election of Directors

The following table provides compensation information for the fiscal year ended June 30, 2025 for each non- employee member of our Board<sup>(1)</sup>:

---

| | | | |
|:---|:---|:---|:---|
| NAME  | FEES EARNED OR <br> PAID IN CASH <br> ($)  | STOCK AWARDS<sup>(2)</sup> <br> ($)  | TOTAL <br> ($)  |
| William F. Ballhaus | 183500 | 224934 | 408434 |
| Kelli Bernard | 135500 | 175026 | 310526 |
| Gerald Chizever | 152500 | 195045 | 347545 |
| James B. Hawkins | 170000 | 200050 | 370050 |
| Meyer Luskin | 167500 | 210059 | 377559 |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

We have omitted from this table the columns titled "Option Awards," "Non-Equity Incentive Plan Compensation," "Change in Pension Value and Nonqualified Deferred Compensation Earnings" and "All Other Compensation" because no amounts would have been included in such columns.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Amounts are calculated utilizing the accounting guidance related to stock-based compensation under accounting principles generally accepted in the United States. See Note 9 to the Consolidated Financial Statements included in our Form 10-K for the year ended June 30, 2025 for a discussion of the assumptions used in valuation of stock awards. For the fiscal year ended June 30, 2025, 1,618 RSUs were granted to Dr. Ballhaus; 1,259 RSUs were granted to Ms. Bernard; 1,403 RSUs were granted to Mr. Chizever; 1,439 RSUs were granted to Mr. Hawkins; and 1,511 RSUs were granted to Mr. Luskin, all with a fair value of $139.02. As of June 30, 2025, Mr. Luskin had 4,587 unvested stock awards outstanding; Dr. Ballhaus had 4,914 unvested stock awards outstanding; Mr. Hawkins had 4,429 unvested stock awards outstanding; Mr. Chizever had 4,276 unvested stock awards outstanding; and Ms. Bernard had 3,822 unvested stock awards outstanding.

#### DIRECTOR SHARE OWNERSHIP REQUIREMENTS

---

| | |
|:---|:---|
| We believe that our directors should hold a significant amount of Company equity to link their long-term economic interests directly to those of our stockholders. Accordingly, we have established requirements that our directors own at minimum equity of the Company valued at five times their annual retainers.  | ![[MISSING IMAGE: tb_annual-pn.jpg]](tb_annual-pn.jpg)  |

---

We believe that this multiple constitutes significant amounts for our directors and provides a substantial link between the interests of our directors and those of our stockholders. During such time that a director has not attained the share ownership guideline, such director is required to retain at least 50% of the shares acquired upon exercise of options or vesting RSU awards, net of amounts required to pay taxes and exercise price. We periodically review our minimum equity ownership guidelines. For purposes of meeting the ownership requirements, unvested RSUs are counted, but unearned performance awards and unexercised stock options are not. Each of our directors meets or exceeds our minimum equity ownership guidelines.

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Corporate Governance

## Corporate Governance

### BOARD ROLE IN RISK OVERSIGHT
Our Board is responsible for our risk oversight. Risks we face include, among others:

▪ competitive ▪ economic ▪ operational ▪ financial ▪ accounting ▪ liquidity ▪ tax ▪ legal/regulatory ▪ foreign country ▪ safety ▪ employment ▪ political ▪ cybersecurity

Risks are reported to our Board through our executive officers, who are responsible for the identification, assessment, and management of our risks. Our Board regularly discusses the risks reported by our executive officers and reviews with management strategies and actions to mitigate the risks and the status and effectiveness of such strategies and actions.

To optimize its risk oversight capabilities and efficiently oversee our risks, the Board delegates to its committees oversight responsibility for particular areas of risk. For example:

---

| | | | | |
|:---|:---|:---|:---|:---|
| ![[MISSING IMAGE: ic_audit-pn.jpg]](ic_audit-pn.jpg)  | ![[MISSING IMAGE: ic_risk-pn.jpg]](ic_risk-pn.jpg)  | ![[MISSING IMAGE: ic_governance-pn.jpg]](ic_governance-pn.jpg)  | ![[MISSING IMAGE: ic_compensation-pn.jpg]](ic_compensation-pn.jpg)  | ![[MISSING IMAGE: ic_industry-pn.jpg]](ic_industry-pn.jpg)  |
| AUDIT <br> COMMITTEE  | RISK MANAGEMENT <br> COMMITTEE  | NOMINATING AND <br> GOVERNANCE <br> COMMITTEE  | COMPENSATION <br> COMMITTEE  | TECHNOLOGY <br> COMMITTEE  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The Audit Committee oversees management of major financial risks, including risks related to: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>accounting <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>auditing <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>financial reporting <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>maintaining effective internal control over financial reporting <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The Risk Management Committee oversees management of key enterprise risks, including: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>strategic <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>operational <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>legal/regulatory <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>compliance <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>cybersecurity <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>environmental/climate <br>| The Nominating and Governance Committee oversees risks related to the effectiveness of the Board | The Compensation Committee oversees risks related to our executive compensation policies and practices | The Technology Committee oversees risks related to technology matters |

---

### BOARD LEADERSHIP STRUCTURE AND LEAD INDEPENDENT DIRECTOR
Our Executive Chairman of the Board was our former Chief Executive Officer. We believe this structure serves as an effective link between management's role of identifying, assessing and managing risks and the Board's role of risk oversight. Mr. Chopra possesses in-depth knowledge of the issues, opportunities and challenges we face and is thus well positioned to develop agendas and highlight issues that ensure that the Board's time and attention are focused on the most critical matters. In addition, our Board has determined that this leadership structure is optimal because it believes that having Mr. Chopra serve as Executive Chairman provides decisive, consistent and effective leadership, as well as clear accountability. It also enhances our ability to communicate our message and strategy clearly and consistently to our stockholders, employees, and other companies with which we do business. Although we believe that this structure is

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Corporate Governance

appropriate under current circumstances, we will continue to review this issue periodically to determine whether, based on the relevant facts and circumstances, an alternate structure would serve our best interests and the best interests of our stockholders.

The number of independent directors serving on our Board, our independent committees and our Lead Independent Director balance the fact that our Executive Chairman was our former Chief Executive Officer. William Ballhaus is currently our Lead Independent Director and brings to this role considerable skills and experience as described above in "Proposal 1—Election of Directors." The role of Lead Independent Director is designed to further promote the independence of our Board and appropriate oversight of management and to facilitate free and open discussion and communication among our independent directors.

### COMMITMENT TO DIVERSITY
We are focused on creating a diverse and inclusive workforce. We strive to attract and retain top talent, foster an inclusive culture, and embrace diversity. We are also committed to diversity at the Board level. Our Board and Nominating and Governance Committee consider diversity when considering nominations to the Board. The Board's objective is to have a Board comprised of individuals who by occupation, background, and experience are in a position to make a strong, positive contribution to our Company and our stockholders.

#### BOARD COMPOSITION (AS OF OCTOBER 22, 2025)
![[MISSING IMAGE: pc_diversitynew-pn.jpg]](pc_diversitynew-pn.jpg)

<u> DEMOGRAPHIC INFORMATION OF EMPLOYEE POPULATION </u> <br> As of September 30, 2025, our employee demographic breakdown was as follows. We have omitted from our calculations those employees who declined to self-identify or for whom no data was provided.

![[MISSING IMAGE: pc_diversity-pn.jpg]](pc_diversity-pn.jpg)

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Corporate Governance

### BOARD MEETINGS, INDEPENDENCE AND COMMITTEES OF THE BOARD
There were eight meetings of the Board and the Board acted pursuant to unanimous written consent on one additional occasion during the fiscal year ended June 30, 2025. During fiscal 2025, the Board had a standing Audit Committee, Compensation Committee, Nominating and Governance Committee, Risk Management Committee, and Technology Committee. The members of each committee are appointed by the majority vote of the Board. All persons serving as a director during the fiscal year ended June 30, 2025 attended more than 75% of the aggregate number of meetings held by the Board and all committees on which such director served.

The Board has determined that each of the current directors, except Mr. Chopra and Mr. Mehra, is independent within the meaning of the director independence standards of The NASDAQ Stock Market (the "Listing Standards"), as currently in effect. Furthermore, the Board has determined that each of the members of each of the committees of the Board is independent within the meaning of the SEC rules and regulations and the Listing Standards, as applicable and currently in effect.

---

| | |
|:---|:---|
| **The Board Committees act pursuant to written charters adopted by the Board, copies of which are available under the Investor Relations section of our website at:**  | &nbsp;&nbsp;&nbsp; **![[MISSING IMAGE: ic_ethics-pn.gif]](ic_ethics-pn.gif) <br> https://investors.osi-systems.com/<br>investor-relations/company-<br>information/corporate-<br>governance**  |

---

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Corporate Governance

---

| | | | |
|:---|:---|:---|:---|
|  ***Audit Committee***  |  ***All members of the Audit Committee<br>are independent directors***  |  ***Meetings held during the fiscal <br> year ended June 30, 2025:***  |  ***4***  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COMMITTEE MEMBERS <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>James B. Hawkins (Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>William F. Ballhaus <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Meyer Luskin <br>FINANCIAL EXPERT <br> The Board has determined that, based upon his work experience, Mr. Hawkins qualifies as an "Audit Committee Financial Expert" as this term has been defined under the rules and regulations of the SEC. Information regarding Mr. Hawkins' work experience is set forth above under "Proposal 1—Election of Directors." <br> To date, no determination has been made as to whether the other members of the Audit Committee also qualify as Audit Committee Financial Experts.  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COMMITTEE COMPLIANCE <br> We have a separately designated, standing Audit Committee established in accordance with Section 3(a)(58)(A) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). <br> All members of the Audit Committee are independent, as independence for audit committee members is defined in Rule 10A-3(b)(1) under the Exchange Act and the Listing Standards applicable to our Company. <br> KEY RESPONSIBILITIES <br> The Audit Committee: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>makes recommendations for selection of our independent public accountants, <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviews with the independent public accountants the plans and results of the audit engagement, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>approves professional services provided by the independent public accountants, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviews the independence of the independent public accountants, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>considers the range of audit and any non-audit fees, and <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviews our financial statements and the adequacy of our internal accounting controls and financial management practices. <br>REPORT OF THE AUDIT COMMITTEE <br> The Report of the Audit Committee is on page 22 of this Proxy Statement.  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviews with the independent public accountants the plans and results of the audit engagement, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>approves professional services provided by the independent public accountants, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviews the independence of the independent public accountants, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>considers the range of audit and any non-audit fees, and <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviews our financial statements and the adequacy of our internal accounting controls and financial management practices. <br>REPORT OF THE AUDIT COMMITTEE <br> The Report of the Audit Committee is on page 22 of this Proxy Statement.  |

---

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| | | | |
|:---|:---|:---|:---|
|  ***Compensation <br> Committee***  |  ***All members of the Compensation<br>Committee are independent<br>directors***  |  ***Meetings held during the fiscal <br> year ended June 30, 2025:***  |  ***2***  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COMMITTEE MEMBERS <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Meyer Luskin (Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>William F. Ballhaus <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>James B. Hawkins <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KEY RESPONSIBILITIES <br> The Compensation Committee is responsible for: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>determining compensation and benefits for our executive officers, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviewing and approving executive compensation policies and practices, and <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>providing advice and input to the Board in the administration of our equity compensation and benefits plans. <br>| The Compensation Committee engages and consults with independent compensation consultants in the performance of its duties. <br> COMPENSATION COMMITTEE REPORT <br> The Compensation Committee Report is on page 55 of this Proxy Statement.  | The Compensation Committee engages and consults with independent compensation consultants in the performance of its duties. <br> COMPENSATION COMMITTEE REPORT <br> The Compensation Committee Report is on page 55 of this Proxy Statement.  |

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Corporate Governance

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| | | | |
|:---|:---|:---|:---|
| **Nominating and <br> Governance <br> Committee**  | ***All members of the Nominating and<br>Governance Committee are<br>independent directors***  | **Meetings held during the fiscal <br> year ended June 30, 2025:**  | **1**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COMMITTEE MEMBERS <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Meyer Luskin (Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Kelli Bernard <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>James B. Hawkins <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KEY RESPONSIBILITIES <br> The Nominating and Governance Committee is responsible for: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>evaluating nominations for new members of the Board. <br>CONSIDERATION OF DIRECTOR <br> CANDIDATES <br> The Nominating and Governance Committee will consider director candidates based upon their: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>business and financial experience, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>personal characteristics, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>expertise that is complementary to the background and experience of other Board members, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>diversity, <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>willingness to devote the required amount of time to carrying out the duties and responsibilities of membership on the Board, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>willingness to objectively appraise management performance, and <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>any such other qualifications the Nominating and Governance Committee deems necessary to ascertain the candidate's ability to serve on the Board. <br>The Nominating and Governance Committee has sought to identify director nominees that have diverse professional and educational backgrounds that are believed to complement the skills offered by existing Board members.  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>willingness to devote the required amount of time to carrying out the duties and responsibilities of membership on the Board, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>willingness to objectively appraise management performance, and <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>any such other qualifications the Nominating and Governance Committee deems necessary to ascertain the candidate's ability to serve on the Board. <br>The Nominating and Governance Committee has sought to identify director nominees that have diverse professional and educational backgrounds that are believed to complement the skills offered by existing Board members.  |

---

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| | | | |
|:---|:---|:---|:---|
|  ***Risk Management <br> Committee***  |  ***All members of the Risk<br>Management Committee are<br>independent directors***  |  ***Meetings held during the fiscal <br> year ended June 30, 2025:***  |  ***4***  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COMMITTEE MEMBERS <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Kelli Bernard (Co-Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Gerald Chizever (Co-Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Meyer Luskin <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KEY RESPONSIBILITIES <br> The Risk Management Committee is responsible for overseeing and monitoring our key enterprise risks, including: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>strategic, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>operational, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>legal/regulatory <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>compliance <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>environmental/climate, and <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reputational risks. <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The Risk Management Committee has responsibility for: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviewing our compliance program and our major legal compliance risk exposures, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>monitoring our code of ethics, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviewing our risk management reviews and assessments, and <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>regularly assessing the continuing appropriateness of a succession plan for our Chief Executive Officer and other executive officers.  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The Risk Management Committee has responsibility for: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviewing our compliance program and our major legal compliance risk exposures, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>monitoring our code of ethics, <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>reviewing our risk management reviews and assessments, and <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>regularly assessing the continuing appropriateness of a succession plan for our Chief Executive Officer and other executive officers.  |

---

---

| | | | |
|:---|:---|:---|:---|
|  ***Technology <br> Committee***  |  ***All members of the Technology<br>Committee are independent<br>directors***  |  ***Meetings held during the fiscal <br> year ended June 30, 2025:***  |  ***3***  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; COMMITTEE MEMBERS <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>William F. Ballhaus (Chair) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Gerald Chizever <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>James B. Hawkins <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KEY RESPONSIBILITIES <br> The Technology Committee is responsible for: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>evaluating and making recommendations to the Board regarding technology-based matters.  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KEY RESPONSIBILITIES <br> The Technology Committee is responsible for: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>evaluating and making recommendations to the Board regarding technology-based matters.  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KEY RESPONSIBILITIES <br> The Technology Committee is responsible for: <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>evaluating and making recommendations to the Board regarding technology-based matters.  |

---

OSI SYSTEMS, INC. 2025 Proxy Statement \| 17

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Corporate Governance

### ANNUAL MEETING ATTENDANCE
We have adopted a formal policy with regard to directors' attendance at annual meetings of stockholders. All members of our Board are strongly encouraged to prepare for, attend and participate in all annual meetings of stockholders. All of our directors attended last year's annual meeting of stockholders.

### DIRECTOR NOMINATION PROCESS

---

| | |
|:---|:---|
| The Nominating and Governance Committee will consider director candidates recommended by stockholders. Stockholders who wish to submit names of candidates for election to the Board must do so in writing. The recommendation should be sent to the following address:  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_mail-pn.gif]](ic_mail-pn.gif) <br> OSI Systems, Inc. <br> Attention: Corporate Secretary <br> 12525 Chadron Avenue <br> Hawthorne, California 90250  |

---

Our Secretary will, in turn, forward the recommendation to the Nominating and Governance Committee. The recommendation should include the following information:

▪ A statement that the writer is a stockholder and is proposing a candidate for consideration by the Nominating and Governance Committee;

▪ The name and contact information for the candidate;

▪ A statement of the candidate's occupation and background, including education and business experience;

▪ Information regarding each of the factors listed above, sufficient to enable the Nominating and Governance Committee to evaluate the candidate;

▪ A statement detailing (i) any relationship or understanding between the candidate and our Company, or any customer, supplier, competitor, or affiliate of ours, and (ii) any relationship or understanding between the candidate and the stockholder proposing the candidate for consideration, or any affiliate of such stockholder; and

▪ A statement that the candidate is willing to be considered for nomination by the Nominating and Governance Committee and willing to serve as a director if nominated and elected.

Stockholders must also comply with all requirements of our Bylaws, a copy of which is available from our Secretary upon written request, with respect to nomination of persons for election to the Board. We may also require any proposed nominee to furnish such other information as we or the Nominating and Governance Committee may reasonably require to determine the eligibility of the nominee to serve as a director. In performing its evaluation and review, the Nominating and Governance Committee generally does not differentiate between candidates proposed by stockholders and other proposed nominees, except that the Nominating and Governance Committee may consider, as one of the factors in its evaluation of stockholder recommended candidates, the size and duration of the interest of the recommending stockholder or stockholder group in the equity of the Company.

There are no stockholder nominations for election to our Board to be voted on at this year's Annual Meeting. Stockholders wishing to submit nominations for next year's annual meeting of stockholders must notify us of their intent to do so on or before the date on which nominations must be received by us in accordance with our Bylaws and the rules and regulations of the SEC. For details see "Stockholder Proposals.

### COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
None of our executive officers has served during the fiscal year ended June 30, 2025 or subsequently as a member of the board of directors or compensation committee of any entity which has one or more executive officers who serve on our Board or the Compensation Committee. During the fiscal year ended June 30,

18 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Corporate Governance

2025, no member of our Compensation Committee had any relationship or transaction with our Company required to be disclosed pursuant to Item 404 of Regulation S-K.

### STOCKHOLDER COMMUNICATIONS

---

| | |
|:---|:---|
| Stockholders interested in communicating directly with the Board, or specified individual directors, may do so by writing our Secretary at the following address:  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_mail-pn.gif]](ic_mail-pn.gif) <br> OSI Systems, Inc. <br> Attention: Corporate Secretary <br> 12525 Chadron Avenue <br> Hawthorne, California 90250  |

---

Our Secretary will review all such correspondence and will regularly forward to the Board copies of all such correspondence that, in the opinion of our Secretary, deals with the functions of the Board or committees thereof or that he otherwise determines requires their attention. Directors may at any time review a log of all correspondence received that is addressed to members of the Board and request copies of such correspondence. Concerns relating to accounting, internal control or auditing matters will immediately be brought to the attention of the Audit Committee and handled in accordance with procedures established by the Audit Committee with respect to such matters.

### CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
In 1994, we, together with Electronics Corporation of India Limited ("ECIL"), an unaffiliated Indian company, formed ECIL-Rapiscan Security Products Limited, a joint venture under the laws of India ("ECIL Rapiscan"). We own a 36% interest in the joint venture, Mr. Mehra owns a 4.5% interest, and Mr. Chopra owns a 10.5% interest. The remaining interest in the joint venture is owned by ECIL. To date, our portion of the earnings of ECIL Rapiscan has been immaterial to our financial results and results of operations.

Mohinder Chopra, who is the brother of Deepak Chopra, our Executive Chairman of the Board, is our Senior Vice President/General Manager India. His total compensation for fiscal year 2025 calculated using the same methodology as used in the Summary Compensation Table was valued at approximately $430,000.

Gerald Chizever, a member of our Board, was a partner at Loeb & Loeb LLP through December 2024. Loeb & Loeb advises the Company in various matters from time to time. The fees paid by the Company to Loeb & Loeb in each of the past three fiscal years were significantly below the applicable threshold outlined in The NASDAQ Stock Market guidelines for determining director independence. Our Board carefully reviewed the nature of our engagement of Loeb & Loeb and the services rendered, including nominal fees relative to Loeb & Loeb's annual revenues, the expertise and relevant experience of the firm, the firm's and specific partners' knowledge of our Company and our business and past legal engagements, and the fees paid in such engagements, and determined that Mr. Chizever is independent under the standards of The NASDAQ Stock Market.

The Audit Committee of the Board reviews proposed transactions in which the Company and any person who is a member of the Board, a nominee to become a member of the Board, an executive officer of the Company, a holder of more than five percent of our voting securities, or any immediate family member of any of the foregoing would have a direct or indirect material interest in the transaction and the amount involved, when added together with the amounts of all other transactions with that related person for that fiscal year, exceeds $75,000. The review involves an evaluation, without participation by any member of the Audit Committee with a direct or indirect material interest in the transaction, of whether the transaction would be on terms at least as favorable to us as those that could have been obtained from unaffiliated third parties. This policy is supported by the Charter of the Audit Committee of the Board.

OSI SYSTEMS, INC. 2025 Proxy Statement \| 19

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Proposal 2—Ratification of Selection of Independent Registered Public Accounting Firm

## Proposal 2—Ratification of Selection of Independent Registered Public Accounting Firm

---

| | |
|:---|:---|
| What am I voting <br> on and how should <br> I vote?  | You are being asked to ratify the appointment of Grant Thornton LLP as the company's independent registered public accounting firm for the year ending June 30, 2026. Although our governing documents do not require us to submit this matter to stockholders, the Board believes that asking stockholders to ratify the appointment of Grant Thornton LLP is consistent with best practices in corporate governance.  |
| What am I voting <br> on and how should <br> I vote?  | We believe that Grant Thornton LLP is sufficiently qualified to conduct their duties as independent auditor.  |

---

The Audit Committee has selected Grant Thornton LLP ("Grant Thornton") as our independent registered public accountants for the year ending June 30, 2026 and has further directed that management submit the selection of independent registered public accountants for ratification by our stockholders at the Annual Meeting. Grant Thornton has no financial interest in the Company, and neither it nor any member or employee of the firm has had any connection with the Company in the capacity of promoter, underwriter, voting trustee, director, officer or employee.

In the event that our stockholders fail to ratify the selection of Grant Thornton, the Audit Committee will reconsider whether or not to retain the firm. Even if the selection is ratified, the Audit Committee and the Board in their discretion may direct the appointment of a different independent accounting firm at any time during the year if they determine that such a change would be in our and our stockholders' best interests.

Representatives of Grant Thornton are expected to be present at the Annual Meeting, and they will have an opportunity to make a statement if they so desire and are expected to be available to respond to appropriate questions.

### REQUIRED VOTE
Holders of proxies solicited by this Proxy Statement will vote the proxies received by them as directed on the Proxy or, if no direction is made, in favor of this proposal. In order to be adopted, this proposal must be approved by the affirmative vote of a majority of the shares of Common Stock present in person or by proxy and cast at the Annual Meeting.

Proposal 2 is considered a "routine" matter and, accordingly, brokerage firms and nominees have the authority to vote their clients' unvoted shares on Proposal 2 as well as to vote their clients' shares if the clients have not furnished voting instructions within a specified period of time prior to the Annual Meeting. Abstentions and broker non-votes will not be counted as votes cast and will have no effect on the outcome of the vote on Proposal 2.

 **The Board of Directors unanimously recommends a vote FOR the ratification of Grant Thornton as our independent registered public accountants for the fiscal year ending June 30, 2026.** 

<br> 20 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Proposal 2—Ratification of Selection of Independent Registered Public Accounting Firm

### AUDIT FEES
The following table represents fees charged for professional audit services rendered by Grant Thornton for the audit of our annual financial statements for the years ended June 30, 2024 and 2025 and fees billed by Grant Thornton for other services during those years (in thousands):

---

| | | |
|:---|:---|:---|
| NAME  | FY2024 <br> ($ IN THOUSANDS)  | FY2025 <br> ($ IN THOUSANDS)  |
| Audit fees<sup>(1)</sup> | 1755 | 2065 |
| Audit-related fees<sup>(2)</sup> |  | 106 |
| Tax fees<sup>(3)</sup> |  |  |
| All other fees<sup>(4)</sup> |  |  |
| Total | 1755 | 2171 |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

"Audit fees" consist of fees billed for professional services rendered for the integrated audit of our consolidated financial statements and the review of our interim consolidated financial statements included in quarterly reports and services that are normally provided by Grant Thornton in connection with statutory and regulatory filings or engagements and comfort letters.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

The term "Audit-related fees" means fees billed for assurance and related services that are reasonably related to the performance of the audit or review of our financial statements other than audit fees. This includes professional services related to the convertible notes issued in July 2024.

&nbsp;&nbsp;&nbsp;&nbsp; (3)

The term "Tax fees" means fees billed for professional services rendered for tax advice, planning and compliance (domestic and international).

&nbsp;&nbsp;&nbsp;&nbsp; (4)

The term "All other fees" means fees billed for products and services other than for the services described above.

### AUDIT COMMITTEE'S PRE-APPROVAL POLICY
The Audit Committee pre-approves all audit, audit-related and tax services (other than prohibited non-audit services) to be provided by the independent public accountants. The Audit Committee has delegated to its Chairman the authority to pre-approve all other services to be provided by the independent public accountants, up to an aggregate of $50,000 each fiscal year. The Chairman reports each such pre-approval decision to the full Audit Committee at its next scheduled meeting.

### INDEPENDENCE
The Audit Committee has considered whether Grant Thornton's audit of the Company's annual financial statement and its review of the Company's quarterly financial statements is compatible with maintaining such independent public accountant's independence and has determined that it is compatible.

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Report of the Audit Committee

---

| | | |
|:---|:---|:---|
| Report of the Audit Committee  | Report of the Audit Committee  | Report of the Audit Committee  |
| The Audit Committee is composed solely of independent directors meeting the applicable requirements of the Nasdaq rules. The Audit Committee reviews the Company's financial reporting process on behalf of the Board. Management has the primary responsibility for establishing and maintaining adequate internal control over financial reporting, for preparing the financial statements, and for the reporting process. The Audit Committee members do not serve as professional accountants or auditors, and their functions are not intended to duplicate or to certify the activities of management and the independent registered public accounting firm. The Company's independent auditors are engaged to audit and report on the conformity of the Company's financial statements to accounting principles generally accepted in the United States and the effectiveness of the Company's internal control over financial reporting.  | The Audit Committee is composed solely of independent directors meeting the applicable requirements of the Nasdaq rules. The Audit Committee reviews the Company's financial reporting process on behalf of the Board. Management has the primary responsibility for establishing and maintaining adequate internal control over financial reporting, for preparing the financial statements, and for the reporting process. The Audit Committee members do not serve as professional accountants or auditors, and their functions are not intended to duplicate or to certify the activities of management and the independent registered public accounting firm. The Company's independent auditors are engaged to audit and report on the conformity of the Company's financial statements to accounting principles generally accepted in the United States and the effectiveness of the Company's internal control over financial reporting.  | The Audit Committee is composed solely of independent directors meeting the applicable requirements of the Nasdaq rules. The Audit Committee reviews the Company's financial reporting process on behalf of the Board. Management has the primary responsibility for establishing and maintaining adequate internal control over financial reporting, for preparing the financial statements, and for the reporting process. The Audit Committee members do not serve as professional accountants or auditors, and their functions are not intended to duplicate or to certify the activities of management and the independent registered public accounting firm. The Company's independent auditors are engaged to audit and report on the conformity of the Company's financial statements to accounting principles generally accepted in the United States and the effectiveness of the Company's internal control over financial reporting.  |
| In this context, the Audit Committee reviewed and discussed with management and the independent auditors the audited financial statements for the fiscal year ended June 30, 2025 (the "Audited Financial Statements"), management's assessment of the effectiveness of the Company's internal control over financial reporting, and the independent auditors' evaluation of the Company's system of internal control over financial reporting. The Audit Committee has discussed with Grant Thornton, the Company's independent auditors, the matters required to be discussed by applicable requirements of the Public Company Accounting Oversight Board ("PCAOB") and the SEC. In addition, the Audit Committee has received the written disclosures and the letter from the independent auditors required by applicable requirements of the PCAOB regarding the independent auditors' communications with the Audit Committee concerning independence and has discussed with the independent auditors the independent auditors' independence.  | In this context, the Audit Committee reviewed and discussed with management and the independent auditors the audited financial statements for the fiscal year ended June 30, 2025 (the "Audited Financial Statements"), management's assessment of the effectiveness of the Company's internal control over financial reporting, and the independent auditors' evaluation of the Company's system of internal control over financial reporting. The Audit Committee has discussed with Grant Thornton, the Company's independent auditors, the matters required to be discussed by applicable requirements of the Public Company Accounting Oversight Board ("PCAOB") and the SEC. In addition, the Audit Committee has received the written disclosures and the letter from the independent auditors required by applicable requirements of the PCAOB regarding the independent auditors' communications with the Audit Committee concerning independence and has discussed with the independent auditors the independent auditors' independence.  | In this context, the Audit Committee reviewed and discussed with management and the independent auditors the audited financial statements for the fiscal year ended June 30, 2025 (the "Audited Financial Statements"), management's assessment of the effectiveness of the Company's internal control over financial reporting, and the independent auditors' evaluation of the Company's system of internal control over financial reporting. The Audit Committee has discussed with Grant Thornton, the Company's independent auditors, the matters required to be discussed by applicable requirements of the Public Company Accounting Oversight Board ("PCAOB") and the SEC. In addition, the Audit Committee has received the written disclosures and the letter from the independent auditors required by applicable requirements of the PCAOB regarding the independent auditors' communications with the Audit Committee concerning independence and has discussed with the independent auditors the independent auditors' independence.  |
| Based upon the reviews and discussions referred to above, the Audit Committee recommended to the Board that the Audited Financial Statements be included in the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2025, for filing with the SEC.  | Based upon the reviews and discussions referred to above, the Audit Committee recommended to the Board that the Audited Financial Statements be included in the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2025, for filing with the SEC.  | Based upon the reviews and discussions referred to above, the Audit Committee recommended to the Board that the Audited Financial Statements be included in the Company's Annual Report on Form 10-K for the fiscal year ended June 30, 2025, for filing with the SEC.  |
| **AUDIT COMMITTEE**  | **AUDIT COMMITTEE**  | **AUDIT COMMITTEE**  |
| James B. Hawkins, Chair  | William F. Ballhaus  | Meyer Luskin  |

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Proposal 3—Advisory Vote to Approve the Compensation of Our Named Executive Officers

## Proposal 3—Advisory Vote to Approve the Compensation of Our Named Executive Officers

---

| | |
|:---|:---|
| What am I voting on and how should I vote?  | We are providing our stockholders an opportunity to indicate whether they approve of our Named Executive Officer compensation as disclosed pursuant to Item 402 of Regulation S-K, including the Compensation Discussion and Analysis, the compensation tables and narrative discussion in this Proxy Statement. This proposal is required pursuant to Section 14A of the Exchange Act.  |
| What am I voting on and how should I vote?  | Although this vote is advisory and is not binding on the Company, the Compensation Committee of the Board will take into account the outcome of the vote when considering future executive compensation decisions.  |
| What am I voting on and how should I vote?  | We believe that our compensation philosophy and practices are centered on pay-for-performance principles, designed to retain key executives and reward company performance, and strongly aligned with stockholder interests. Accordingly, stockholders are being asked to vote **FOR** the below resolution.  |

---

The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (the "Dodd Frank Act") enables our stockholders to vote to approve, on an advisory, non-binding basis, our executive compensation for the fiscal year ended June 30, 2025 as disclosed in the Proxy Statement in accordance with the SEC's rules, including Section 14A of the Exchange Act. We currently conduct this advisory vote on an annual basis, and the next advisory vote is expected to be conducted at our 2026 Annual Meeting of Stockholders.

### SUMMARY
Our Board is committed to excellence in governance and is aware of the significant interest in executive compensation matters by investors and the general public. We are asking our stockholders to provide advisory approval of our executive compensation as such compensation is described in the "Compensation Discussion and Analysis" section, the tabular disclosure regarding such compensation, and the accompanying narrative disclosure set forth in the Proxy Statement. We recognize and value the critical role that executive leadership plays in our performance. Our executive compensation philosophy is intended to ensure that executive compensation is aligned with our short- and long-term business strategy, objectives, and stockholder interests. Our executive compensation is designed to attract, motivate, and retain highly qualified executives. We believe that our compensation policies and procedures are centered on pay-for-performance principles and are strongly aligned with the short- and long-term interests of our stockholders.

We urge you to review the "Compensation Discussion and Analysis" section of the Proxy Statement and executive-related compensation tables for more information.

#### EMPHASIS ON PAY-FOR-PERFORMANCE PRINCIPLES
We believe that executive compensation should be tied to our performance on both a short-term and long-term basis. We believe that our continued success is closely tied to the performance of our executive officers and have designed our compensation practices to reward the executives for their contributions to our overall success.

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Proposal 3—Advisory Vote to Approve the Compensation of Our Named Executive Officers

#### ALIGNMENT WITH STOCKHOLDERS' INTERESTS
We grant annual incentives based in part on each executive's contribution to enhancing our short- and long-term profitable growth. We also grant long-term equity-based incentives as a substantial component of the compensation program to reward long-term performance and further align the interests of management with those of our stockholders. In recent years, we have generally used performance based RSUs as our equity incentive vehicle as these awards enable the executives to establish a meaningful equity stake in our Company while allowing them to participate in future value creation through appreciation of the shares. These awards tie the executives' interests to those of long-term stockholders and serve to motivate the executives to lead us to achieve long-term financial goals that are expected to lead to increased stockholder value. In addition to linking compensation value to stockholder value, these awards generally have vesting conditions, which creates a strong retention incentive and helps ensure the continuity of our operations. For fiscal year 2025, except for one time-based RSU grant to Mr. Mansouri because of his impending retirement, 100% of the long-term equity incentives granted to our Named Executive Officers consisted of performance based RSUs subject to performance vesting based on the compound annual growth rate of revenue and operating income.

#### LONG-TERM PERFORMANCE
To promote our philosophy of pay-for-performance and furthering our objective of aligning the interests of management with those of our stockholders, we have established performance programs for certain of our executive officers. These programs focus on the achievement of our long-term financial goals and factors that create long-term stockholder value. By establishing performance targets tied to key corporate financial metrics, we are incentivizing our officers to achieve our long-term corporate objectives and ultimately increase stockholder value.

#### HIGHLIGHTS OF FISCAL 2025 EXECUTIVE COMPENSATION PROGRAM
The Board believes our executive compensation program is designed appropriately and that a vote in favor of the proposal is warranted, including for these reasons:

---

| | | | |
|:---|:---|:---|:---|
| **1**  | **2**  | **3**  | **4**  |
| Except for one grant to a retiring NEO, 100% of Named Executive Officer equity awards for fiscal 2025 were performance-based and tied to measurable pre-established targets.  | In light of recent strong performance, we increased our target for our annual incentive program over both the prior year's target and the prior year's actual performance.  | We are committed to having strong governance standards and continue to take steps to further this commitment.  | We value the opinions and feedback we receive from, and we continue to engage with, our stockholders, and our executive compensation program directly reflects our stockholders' input.  |

---

1. Performance-Based Equity Awards for Named Executive Officers

---

| | |
|:---|:---|
| Except for one grant to a retiring NEO, 100% of the equity grants made to our Named Executive Officers during fiscal 2025 were performance-based and tied to pre-established targets. Our 2025 performance-based program established revenue and operating income targets which require significant annual growth as compared to baseline measurement levels. The revenue metric is weighted at 20%, and the operating income metric is weighted at 80%.  | ![[MISSING IMAGE: pc_equity-pn.jpg]](pc_equity-pn.jpg)  |

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Proposal 3—Advisory Vote to Approve the Compensation of Our Named Executive Officers

For the performance period ended June 30, 2025, compound annual revenue growth as compared to the baseline measurement level was 7.49%, and compound annual operating income growth as compared to the baseline measurement level was 17.47%. As a result, Mr. Mehra earned 5,812 shares in accordance with the program, and Mr. Chopra earned 55,631 shares in accordance with the program.

2. Increased Targets for Annual Incentive Program

For fiscal year 2025, in light of recent strong performance, we increased our target goals over the prior year's performance as set forth in the section titled "*Executive Compensation Program Elements—Annual Incentive Awards.*"

3. Commitment to Corporate Governance and Best Practices

#### We are committed to having strong governance standards with respect to our compensation programs, procedures, and practices.
We have taken the following actions to enhance our corporate governance and executive compensation policies:

![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)

**Engaged with stockholders and incorporated stockholder feedback** when establishing our executive compensation programs to address specific stockholder feedback.

![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)

**Appointed a Lead Independent Director** to further promote the independence of our Board and appropriate oversight of management and to facilitate free and open discussion and communication among our independent directors.

![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)

**Prohibited hedging and pledging of our stock** by executive officers and directors. As of the date of the Proxy Statement, no shares of our stock are pledged by any Named Executive Officer or director.

![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)

**Adopted a robust clawback policy consistent with SEC requirements and the Listing Standards** that provides that if an accounting restatement is required due to material non-compliance with any financial reporting requirements, then we will seek to recover any incentive-based compensation received by any of our current or former executive officers over the prior three completed fiscal years preceding the date that the restatement is required to the extent such compensation exceeds the amount of incentive-based compensation that would have been paid based on the restated financial reporting measure, regardless of whether or not the current or former executive officer was at fault in the circumstances leading to the restatement. We have also included clawback provisions in each Named Executive Officer's employment agreement.

![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg)

**Established rigorous Company stock ownership guidelines** requiring each executive officer to own Company stock valued at least at five times his annual base salary. These guidelines align the executives' long-term interests with those of our stockholders. In addition, prior to attaining the 5X share ownership guideline, each executive is required to retain at least 50% of the shares acquired upon exercise of options or vesting of RSU awards, net of amounts required to pay taxes and exercise price. For purposes of meeting the ownership requirements, unvested RSUs are counted, but unearned performance awards and unexercised stock options are not.

4. Communications with Stockholders

#### We maintain open lines of communication with our stockholders, and our annual cash incentive and long-term incentive programs reflect the stockholder input we received.
Our Compensation Committee takes very seriously stockholder feedback with respect to executive compensation. At our 2024 annual meeting, approximately 64% of the votes cast on the advisory vote on the compensation of our Named Executive Officers were in favor of our executive compensation. We believe this vote was highly influenced by the inflated Total Compensation figure awarded to our prior CEO, Mr. Chopra, in 2024, which included a $13.5 million stay bonus. Given the majority level of support of our

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Proposal 3—Advisory Vote to Approve the Compensation of Our Named Executive Officers

stockholders of our compensation program notwithstanding this outlier compensation figure, our Compensation Committee determined to continue to apply the same approach with respect to compensation policies and decisions for fiscal 2025.

Our Board believes that the information above as well as that provided in the section entitled "Executive Compensation" contained in the Proxy Statement demonstrates that our executive compensation program was designed appropriately and is working to ensure that management's interests are aligned with the stockholders' interests and support long-term value creation.

The following resolution will be submitted for a stockholder vote at the Annual Meeting:

"**RESOLVED**, that the stockholders of OSI Systems, Inc. approve, on an advisory basis, the compensation of the Company's Named Executive Officers, as disclosed pursuant to Item 402 of Regulation S-K of the SEC, including in the section entitled "Compensation Discussion and Analysis," the accompanying compensation tables, and the related narrative disclosure contained in the Proxy Statement."

### REQUIRED VOTE
Holders of proxies solicited by this Proxy Statement will vote the proxies received by them as directed on the Proxy or, if no direction is made, in favor of this proposal. In order to be approved on an advisory basis, this proposal must be approved by the affirmative vote of a majority of the shares of Common Stock present in person or by proxy and cast at the Annual Meeting.

Proposal 3 is considered a "non-routine" matter and, accordingly, brokerage firms and nominees do not have the authority to vote their clients' unvoted shares on Proposal 3 or to vote their clients' shares if the clients have not furnished voting instructions within a specified period of time prior to the Annual Meeting. Abstentions and broker non-votes will not be counted as votes cast and will have no effect on the outcome of the vote on Proposal 3.

 **The Board of Directors unanimously recommends a vote FOR the approval, on a non-binding advisory basis, of our Named Executive Officer compensation for the fiscal year ended June 30, 2025.** 

<br> 26 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Executive Compensation

## Executive Compensation

### EXECUTIVE OFFICERS
Our executive officers are as follows:

---

| | | | |
|:---|:---|:---|:---|
| NAME  | AGE  | POSITION  | JOINED <br> COMPANY <br> IN  |
| Ajay Mehra<sup>(1)</sup>\* | 63  | President and Chief Executive Officer | 1989  |
| Deepak Chopra<sup>(1)</sup>\* | 74  | Executive Chairman of the Board | 1987  |
| Alan Edrick\* | 57  | Executive Vice President and Chief Financial Officer | 2006  |
| Victor Sze\* | 58  | Executive Vice President, General Counsel and Secretary | 2002  |
| Michael Tropeano | 56  | President, Rapiscan | 2016  |
| Wilson Constantine | 54  | President of Spacelabs Healthcare | 2025  |
| Manoocher Mansouri<sup>(2)</sup>\*  | 69  | Chief Technology Officer of Optoelectronics and Manufacturing Division  | 1982  |
| Paul Morben\* | 64  | President of Optoelectronics and Manufacturing Division | 1983  |
| Glenn Grindstaff | 63  | Senior Vice President and Chief Human Resources Officer | 2020  |
| Cary Okawa | 59  | Chief Accounting Officer | 2019  |

---

\*

Denotes our Named Executive Officers for fiscal 2025.

&nbsp;&nbsp;&nbsp;&nbsp; (1)

Mr. Chopra retired as our President and Chief Executive Officer effective December 31, 2024 and was succeeded, effective January 1, 2025, by Mr. Mehra.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Mr. Mansouri retired as President of our Optoelectronics and Manufacturing division on June 30, 2025 and was succeeded, effective July 1, 2025, by Mr. Morben.

The following section sets forth certain background information regarding those persons currently serving as our executive officers, excluding Ajay Mehra and Deepak Chopra, who are described above under "Proposal 1—Election of Directors":

---

| | |
|:---|:---|
| **Alan Edrick**  | &nbsp;&nbsp;&nbsp; **Executive Vice President and Chief Financial Officer <br> since September 2006**  |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAREER HIGHLIGHTS <br> Mr. Edrick has more than three decades of financial management and public accounting experience, including mergers and acquisitions, capital markets, financial planning and analysis and regulatory compliance. <br> **OSI SYSTEMS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Executive Vice President and Chief Financial Officer (September 2006 to present) <br>**BIOSOURCE INTERNATIONAL, INC.**, a biotechnology company <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Executive Vice President and Chief Financial Officer <br> (2004 to 2006, until its sale to Invitrogen Corporation) <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **NORTH AMERICAN SCIENTIFIC, INC.**, a medical device and specialty pharmaceutical company <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Senior Vice President and Chief Financial Officer (1998 to 2004) <br>**PRICEWATERHOUSE LLP** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Served in various positions including Senior Manager, Capital Markets (1989 to 1998) <br>EDUCATION <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Master of Business Administration degree, the Anderson School at the University of California, Los Angeles <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Bachelor of Arts degree, in Economics/Business, the University of California, Los Angeles <br>|

---

OSI SYSTEMS, INC. 2025 Proxy Statement \| 27

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Executive Compensation

---

| | |
|:---|:---|
| **Victor S. Sze**  | &nbsp;&nbsp;&nbsp; **Executive Vice President, General Counsel and Secretary <br> since September 2004**  |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAREER HIGHLIGHTS <br> Mr. Sze has over 30 years of legal experience, both in law firm and in house positions. <br> **OSI SYSTEMS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Executive Vice President, General Counsel and Secretary (September 2004 to present) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>General Counsel and Secretary (November 2002 to present) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Vice President of Corporate Affairs and General Counsel (March 2002 to November 2002) <br>**INTERPLAY ENTERTAINMENT CORP.**, a developer and worldwide publisher of interactive entertainment software <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Director of Corporate Affairs, serving as in-house counsel <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **WOLF, RIFKIN & SHAPIRO, a law firm in Los Angeles** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Attorney <br>EDUCATION <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Juris Doctorate degree, Loyola Law School <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Bachelor of Arts degree, in Economics, the University of California, Los Angeles <br>|

---

---

| | |
|:---|:---|
| **Michael Tropeano**  | &nbsp;&nbsp;&nbsp; **President, Rapiscan <br> since July 2025**  |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAREER HIGHLIGHTS <br> Mr. Tropeano leads the strategic direction and global operations of the business, overseeing Rapiscan's comprehensive portfolio of security screening technologies. <br> **OSI SYSTEMS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President, Rapiscan (July 2025 to present) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Executive Vice President and General Manager, Rapiscan Cargo and Vehicle Inspection Group (July 2018 to June 2025) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Executive Vice President, International Cargo Sales (September 2016 to July 2018). <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **AMERICAN SCIENCE AND ENGINEERING, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Senior Vice President and General Manager (June 2015 to September 2016) <br>EDUCATION <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Master's degree in mechanical engineering, Rensselaer Polytechnic Institute <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Bachelor's degree, the Florida Institute of Technology <br>|

---

---

| | |
|:---|:---|
| **Wilson Constantine**  | &nbsp;&nbsp;&nbsp; **President of Spacelabs Healthcare <br> since February 2025**  |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAREER HIGHLIGHTS <br> Mr. Constantine has more than 25 years in the medical device industry. <br> **OSI SYSTEMS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President of Spacelabs Healthcare (February 2025 to present) <br>**EQT AB-BACKED OTTOBOCK HEALTHCARE NA** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President and Chief Executive Officer (2022 to 2024) <br>**SMITHS MEDICAL** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President and General Manager, Americas (2020 to 2022) <br>**NIHON KOHDEN AMERICA** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President and Chief Executive Officer (2014 to 2019) <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; EDUCATION <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Doctorate degree in P. Medicine, Samuel Merritt University <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Completed Undergraduate Studies in Biology, Loma Linda University <br>|

---

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Executive Compensation

---

| | |
|:---|:---|
| **Manoocher Mansouri**  | &nbsp;&nbsp;&nbsp; **Chief Technology Officer of Optoelectronics and Manufacturing <br> since July 2025**  |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAREER HIGHLIGHTS <br> Mr. Mansouri has over 40 years of experience in the optoelectronics industry. <br> **OSI SYSTEMS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Chief Technology Officer of Optoelectronics and Manufacturing division (July 2025 to present) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President of Optoelectronics and Manufacturing division (June 2006 to June 2025) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Joined the Company in 1982 <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; EDUCATION <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Completed the Executive Program, in Management Certificate, the Anderson School at the University of California, Los Angeles <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Bachelor of Science degree, in Electrical Engineering, the University of California, Los Angeles <br>|

---

---

| | |
|:---|:---|
| **Paul Morben**  | &nbsp;&nbsp;&nbsp; **President of Optoelectronics and Manufacturing <br> since July 2025**  |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAREER HIGHLIGHTS <br> Mr. Morben has over 40 years of experience in the optoelectronics and manufacturing services industries, including 15 years in Asia where he established and led the Company's manufacturing operations in Singapore, Indonesia, and Malaysia. <br> **OSI SYSTEMS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President of Optoelectronics and Manufacturing division (July 2025 to present) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President of OSI Electronics (October 2019 to June 2025) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Joined the Company in 1983 <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **MASTERWORK ELECTRONICS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>President and CEO (2016 to 2019) <br>EDUCATION <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Master of Business Administration degree, Concordia University, Irvine <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Bachelor of Science degree, in Business Administration—Management Science, California State University, Northridge <br>|

---

---

| | |
|:---|:---|
| **Glenn Grindstaff**  | &nbsp;&nbsp;&nbsp; **Senior Vice President and Chief Human Resources Officer <br> since February 2020**  |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAREER HIGHLIGHTS <br> Mr. Grindstaff has over 25 years of progressive human resources leadership experience. <br> **OSI SYSTEMS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Chief Human Resources Officer (February 2020 to present) <br>**L3HARRIS TECHNOLOGIES** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Vice President, Human Resources and Administration (2010—2019) <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **HONDA AIRCRAFT** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Held several senior positions, including Vice President, Human Resources and Administration <br>**SPIRENT COMMUNICATIONS** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Vice President, Human Resources <br>EDUCATION <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Bachelor of Arts degree, in Psychology, California State University, Northridge <br>|

---

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Executive Compensation

---

| | |
|:---|:---|
| **Cary Okawa**  | &nbsp;&nbsp;&nbsp; **Chief Accounting Officer <br> since August 2023**  |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAREER HIGHLIGHTS <br> Mr. Okawa has over 30 years of financial management and public accounting experience. <br> **OSI SYSTEMS, INC.** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Chief Accounting Officer (August 2024 to present) <br>&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Vice President and Corporate Controller (August 2023—August 2024 and 2019—2021) <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **BINANCE.US** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Chief Accounting Officer (2022 to 2023) <br>**ACORNS GROW, INCORPORATED** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Chief Accounting Officer (2021) <br>**NATURAL PRODUCTS GROUP** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Chief Accounting Officer (2016 to 2019) <br>**PRICEWATERHOUSECOOPERS LLP** <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Served in various positions including Senior Audit Manager (1990 to 2000) <br>EDUCATION <br> &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Bachelor of Business Administration, Accounting degree, University of Hawaii—College of Business Administration <br>|

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Executive Compensation

### COMPENSATION DISCUSSION AND ANALYSIS
This Compensation Discussion and Analysis describes our compensation philosophy, objectives and processes, including the methodology for determining executive compensation for our Named Executive Officers. For additional information, please refer to the more detailed compensation disclosures beginning with and following the "Summary Compensation Table" contained in this Proxy Statement.

#### ADVISORY VOTE ON NAMED EXECUTIVE OFFICER COMPENSATION AND STOCKHOLDER COMMUNICATIONS
We maintain open lines of communication with our stockholders, and senior management routinely interacts with our stockholders on a number of matters, including executive compensation, in order to better understand their opinions and to obtain their feedback. Further, the Compensation Committee considers the outcome of our annual say on pay vote when making decisions regarding our executive compensation program. At our 2024 annual meeting, 64% of the votes cast on the advisory vote on the compensation of our Named Executive Officers were in favor of our executive compensation policies. We believe this vote was highly influenced by the inflated Total Compensation figure awarded to our prior CEO, Mr. Chopra, in 2024, which included a $13.5 million stay bonus. Given the majority level of support of our stockholders of our compensation program notwithstanding this outlier compensation figure, our Compensation Committee determined to continue to apply the same approach with respect to compensation policies and decisions for fiscal 2025.

At the upcoming Annual Meeting, we will again hold an annual advisory vote to approve executive compensation. We will continue to engage with our stockholders throughout the year, and the Compensation Committee will consider the results from this year's and future advisory votes on executive compensation, as well as any feedback received from stockholders.

#### GOVERNANCE HIGHLIGHTS
We are committed to having strong governance practices with respect to our compensation programs, practices and procedures. We believe that these practices reinforce our emphasis on tying executive compensation to performance. The following table highlights some of our governance practices with respect to executive compensation:

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHAT WE DO  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WHAT WE DO NOT DO  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg) <br> Except in certain limited circumstances, use 100% performance-based vesting for Named Executive Officer equity awards <br>![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg) <br> Have formulaic performance-based annual incentives <br>![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg) <br> Maintain a robust clawback policy consistent with SEC requirements and the Listing Standards <br>![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg) <br> Maintain share ownership and retention guidelines for executives and directors <br>![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg) <br> Conduct an annual say on pay vote <br>![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg) <br> Maintain open lines of communication with stockholders <br>![[MISSING IMAGE: ic_tick-pn.jpg]](ic_tick-pn.jpg) <br> Maintain a comprehensive insider trading policy designed to promote compliance with insider trading laws, rules, and regulations and the Listing Standards <br>| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_cross-bw.jpg]](ic_cross-bw.jpg) <br> No excise tax gross-ups upon a change in control <br>![[MISSING IMAGE: ic_cross-bw.jpg]](ic_cross-bw.jpg) <br> No hedging, pledging, or speculative transactions are permitted by executives and directors <br>![[MISSING IMAGE: ic_cross-bw.jpg]](ic_cross-bw.jpg) <br> No re-pricing of underwater stock options <br>![[MISSING IMAGE: ic_cross-bw.jpg]](ic_cross-bw.jpg) <br> No stock option grants with an exercise price less than fair market value <br>![[MISSING IMAGE: ic_cross-bw.jpg]](ic_cross-bw.jpg) <br> No "single trigger" severance payments owing solely on account of the occurrence of a change in control event <br>|

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Executive Compensation

#### EXECUTIVE COMPENSATION SUMMARY
Fiscal 2025 Performance

During fiscal 2025, we performed well, delivering excellent financial and operational results. We continued to deliver on commitments to our customers and partners while ensuring the continued safety of our employees. Highlights include:

▪ Delivered record revenues;

▪ Delivered record adjusted earnings per share;

▪ Achieved strong bookings and concluded the year with a record year-end backlog;

▪ Expanded our operating margin;

▪ Strong total shareholder return ("TSR"); and

▪ Completed two strategic acquisitions.

Leverage Business Infrastructure

Even as we launched new products, entered new markets, and invested substantial amounts in R&D, we actively leveraged our business infrastructure and maintained intelligent cost management.

Growth in Markets and Opportunities

In fiscal 2025, we continued to expand our addressable markets through new product introductions and targeting markets that did not previously represent a significant source of revenues. This dynamic approach has served, and we believe it will continue to serve, to sustain growth over the long term. Some of our key achievements during fiscal 2025 included the following:

---

| | |
|:---|:---|
| ![[MISSING IMAGE: img_mother-bw.jpg]](img_mother-bw.jpg)  | Expanded our capabilities in engineering and manufacturing services for national security applications by acquiring a business providing radio frequency (RF) communication and detection products and related services.  |
| ![[MISSING IMAGE: img_trace-bw.jpg]](img_trace-bw.jpg)  | Progressed significantly in our R&D programs for the development of new products and technologies.  |

---

Building a Foundation for the Future

We continue to make significant targeted investments in R&D and acquisitions. In fiscal 2025, we completed two strategic acquisitions in our Security division. We believe that these types of acquisitions and investments, as well as other product development programs that are currently underway, will result in enhanced business outcomes for years to come.

#### ROLE OF THE COMPENSATION COMMITTEE
Our Board appoints members to the Compensation Committee. Each member of the Compensation Committee is independent within the meaning of the rules and regulations of the SEC and the Listing Standards, as currently in effect. The Compensation Committee is responsible for establishing and approving all compensation for our Named Executive Officers, including base salaries, annual incentives, long-term

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Executive Compensation

equity incentive compensation, benefits and perquisites, and other compensation. The Compensation Committee may delegate certain of its responsibilities to a subcommittee, to individuals or to others.

Compensation for each of our Named Executive Officers (other than our Chief Executive Officer) is recommended to the Compensation Committee by our Chief Executive Officer. Compensation for our Chief Executive Officer is established by the Compensation Committee on its own.

The Compensation Committee has designed an executive compensation program that is focused on the attainment of consistent, long-term stockholder returns through:

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp; ![[MISSING IMAGE: ic_incentive-pn.jpg]](ic_incentive-pn.jpg)  | &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>aligning executive incentives with both single-year and multi-year performance <br>| ![[MISSING IMAGE: ic_capabilities-pn.jpg]](ic_capabilities-pn.jpg)  | &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>attracting and retaining executives with capabilities to lead the Company to excel in a competitive landscape <br>|

---

This structure is designed to emphasize pay for performance while simultaneously mitigating risk exposure.

#### EXECUTIVE COMPENSATION PROGRAM ELEMENTS
The particular elements of the compensation program for our Named Executive Officers consist of both fixed compensation and variable compensation. Consistent with our pay-for-performance philosophy, we structure our compensation program such that fixed compensation is a relatively small percentage of total compensation whereas variable compensation comprises a significant percentage of total compensation. The Compensation Committee takes risk into account when establishing the compensation program and believes that the current structure appropriately balances risk and the desire to focus executives on specific annual and long-term goals while not encouraging unnecessary or excessive risk taking.

The following is an overview of the elements of our compensation and benefits programs for fiscal 2025:

---

| | | | |
|:---|:---|:---|:---|
| | | PAY ELEMENT  | DESCRIPTION  |
| **◀ FIXED ▶**  | **Short-Term**  | **BASE SALARY**  | **Fixed cash compensation set based on the duties and scope of responsibilities of each executive officer's position and the experience the individual brings to the position.**  |
| **◀ AT-RISK ▶**  | **Short-Term**  | **ANNUAL INCENTIVES**  | **Cash-based annual incentives that are determined formulaically for our corporate Named Executive Officers.**  |
| **◀ AT-RISK ▶**  | Long-Term | **LONG-TERM INCENTIVES**  | The fiscal 2025 program with respect to the Named Executive Officers, with the exception of one retiring officer, consisted of performance based RSUs, which are earned based on the achievement of pre-established revenue and operating income metrics for each of the three years following grant, as well as an aggregate three-year metric.  |
| **◀ OTHER ▶**  |  | **BENEFITS**  | **Employee Stock Purchase Plan, medical, dental, and vision health insurance plans and life and long-term disability insurance.**  |
| **◀ OTHER ▶**  |  | **PERQUISITES**  | **Company car for certain Named Executive Officers.**  |
| **◀ OTHER ▶**  |  | **RETIREMENT**  | 401(k) retirement plan, which includes a Company match. <br> Nonqualified deferred compensation plan that permits the deferral of salary and cash incentives at executive officers' election and permits a Company match. <br> Nonqualified defined benefit plan, in which our CEO is the only participant.  |

---

In fiscal 2025, fixed compensation (relative to total direct compensation) comprised approximately 10% to 62% and variable compensation comprised approximately 38% to 90% of each Named Executive Officer's total compensation. Average variable compensation for the Named Executive Officers represented 83% of total direct compensation (salary, cash incentives, and long-term incentives).

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Executive Compensation

![[MISSING IMAGE: pc_ceoneo-pn.jpg]](pc_ceoneo-pn.jpg)

Fixed Compensation

Fixed compensation is intended to compensate our Named Executive Officers for their ongoing responsibilities and consists of base salary. Base salary is set to attract and retain executive talent. Base salaries for our Named Executive Officers are established at levels considered appropriate in light of the duties and scope of responsibilities of each executive officer's position and the experience the individual brings to the position. Salaries are reviewed periodically, typically on an annual basis.

The Compensation Committee takes a conservative approach with respect to base salary increases. In determining whether base salary levels for fiscal year 2025 were appropriate, the Compensation Committee considered the minimum base salary amount provided for in the Named Executive Officer's employment agreement (if applicable), as well as a determination of each Named Executive Officer's responsibilities, past performance, expected future contributions, as well as changes in positions during the fiscal year. During fiscal year 2025, effective December 31, 2024, Mr. Chopra retired from his position as President and Chief Executive Officer and was succeeded by Mr. Mehra. Therefore, Mr. Mehra's employment agreement was amended, and his base salary was increased, and Mr. Chopra's salary was decreased commensurate with their new positions.

---

| | | | |
|:---|:---|:---|:---|
| | FISCAL 2024 BASE SALARY <br> ($)  | FISCAL 2025 BASE SALARY <br> ($)  | % CHANGE  |
| Ajay Mehra  | 492340 | 621448 | 26% |
| Deepak Chopra  | 1034800 | 664392 | -36% |
| Alan Edrick  | 519120 | 534095 | 3% |
| Victor S. Sze  | 448050 | 460974 | 3% |
| Manoocher Mansouri  | 328570 | 334469 | 2% |
| Paul Morben  | 324068 | 330302 | 2% |

---

Variable Compensation

Variable compensation provides our Named Executive Officers with the opportunity for substantial rewards for achieving successful performance and contributing toward sustainable and consistent stockholder returns and consists principally of annual incentive awards and long-term incentive compensation.

Annual Incentive Awards

For fiscal year 2025, all corporate Named Executive Officers (CEO, CFO and General Counsel) were eligible for an annual cash incentive pursuant to our annual incentive program. Annual incentives under this program are designed to focus our participating Named Executive Officers on annual operating achievement and near-term success. For 2025, the target and maximum annual incentives as a percentage of salary for the corporate NEOs were as follows:

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Executive Compensation

---

| | | |
|:---|:---|:---|
| | TARGET INCENTIVE <br> (AS A % OF BASE SALARY)  | MAXIMUM INCENTIVE <br> (AS A % OF BASE SALARY)  |
| Ajay Mehra  | 100% | 200% |
| Deepak Chopra  | 100% | 200% |
| Alan Edrick  | 100% | 150% |
| Victor S. Sze  | 100% | 135% |

---

Annual incentives are calculated based on a formula tied to adjusted return on equity ("AROE") metrics. After consideration of the strategic business plan, goals were increased from the prior fiscal year from a target performance goal of 23.35% AROE to a target performance goal of 24.35% AROE. Threshold and maximum performance goals were also increased in fiscal year 2025, as follows:

---

| | |
|:---|:---|
| ADJUSTED RETURN ON EQUITY (AROE)  | % OF BASE SALARY EARNED  |
| <18.0% | 0% |
| 19.0% | 25% |
| 20.5% | 50% |
| 21.5% | 75% |
| 24.35% | 100% |
| 24.5% | 135% |
| 24.75% | 150% |
| 25.0% | 175% |
| ≥25.25% | 200% |

---

The Compensation Committee considers AROE to be an effective annual performance measure for assessing the Company's efficient use of capital and return to stockholders. The AROE targets were designed to be challenging yet achievable with significant effort and management skill and were established in order to provide the executives sufficient incentive to create long-term stockholder value while at the same time ensuring appropriate risk management. For fiscal 2025, we achieved 25.31% AROE. See the "Non-equity Incentive Plan Compensation" column of the Summary Compensation Table.

Mr. Mansouri, Chief Technology Officer of our Optoelectronics and Manufacturing division was eligible to receive a bonus based upon the performance of the Optoelectronics and Manufacturing division. For fiscal year 2025, Mr. Mansouri was awarded a cash bonus of $105,000, which is set forth in the "Bonus" column of the Summary Compensation Table.

Mr. Morben, President of our Optoelectronics and Manufacturing division was eligible to receive a bonus based upon the performance of the Optoelectronics and Manufacturing division. For fiscal year 2025, Mr. Morben was awarded a cash bonus of $83,214, which is set forth in the "Bonus" column of the Summary Compensation Table.

Long-Term Incentive Program

In order to further promote our philosophy of pay-for-performance and furthering our objective of aligning our executive compensation with our long-term financial goals and factors that create long-term stockholder value as well as incentivizing the desired individual performance of each Named Executive Officer, we have a long-term incentive program.

Except for one time-based RSU grant to Mr. Mansouri because of his impending retirement, the grants to our Named Executive Officers during fiscal 2025 were performance-based in their entirety. The Compensation Committee believes that this vesting structure provides an incentive for our Named Executive Officers to remain with the Company and also focus the Named Executive Officers on consistently achieving corporate performance and business objectives for the benefit of our stockholders.

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Executive Compensation

Our overall long-term incentive program is designed to retain our Named Executive Officers and to align the interests of our Named Executive Officers with the long-term interests of our stockholders, namely the achievement of sustainable, long-term stock price appreciation. All equity awards are made at fair market value on the date of grant (which is the date on which the Compensation Committee authorizes the grant). Under our equity incentive plan as in effect on the date of grant, fair market value is determined by the closing price of our Common Stock on such dates.

The Compensation Committee has established a three-year program for long-term performance-based incentive grants to our Named Executive Officers. The program provides for yearly initial grants of RSUs. Each award is 100% performance based and vests based on the level of performance achieved for the following metrics: compound annual revenue growth and compound annual operating income growth.

The Compensation Committee considers compound annual growth revenue and operating income metrics to be effective long-term performance measures for assessing the Company's performance over multiple years. The targets are designed to be challenging yet achievable with significant effort and management skill, incentivizing management to create long-term stockholder value while at the same time ensuring appropriate risk management. Revenue and operating income figures are as reported in accordance with GAAP in our annual report on Form 10-K. Compound annual growth rate is measured as compared to our fiscal year 2023 as-reported figures. As described below, the majority of the shares that can be earned under this program is based upon three-year performance, while additional shares can be earned based upon year one and year two performance.

Each initial grant would vest based upon the performance levels achieved for a three-year performance period for each metric based on the charts set forth below, which show the applicable metrics, weightings and potential vesting percentage based upon performance level achieved.

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: pc_revenue-pn.jpg]](pc_revenue-pn.jpg) REVENUE METRIC (20% OF TOTAL)  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: pc_revenue-pn.jpg]](pc_revenue-pn.jpg) REVENUE METRIC (20% OF TOTAL)  |
| CAGR REVENUE GROWTH  | VESTING PERCENTAGE  |
| <2.0% | 0% |
| 2.0% | 25% |
| 3.0% | 50% |
| 4.0% | 75% |
| 5.0% | 100% |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: pc_operate-pn.jpg]](pc_operate-pn.jpg) OPERATING INCOME METRIC (80% OF TOTAL)  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: pc_operate-pn.jpg]](pc_operate-pn.jpg) OPERATING INCOME METRIC (80% OF TOTAL)  |
| CAGR EBIT GROWTH  | VESTING PERCENTAGE  |
| <3.0% | 0% |
| 3.0% | 10% |
| 3.5% | 30% |
| 4.0% | 50% |
| 5.0% | 70% |
| 6.0% | 85% |
| 7.0% | 100% |

---

Our Named Executive Officers also have the opportunity to earn additional shares for each annual performance period within the three-year performance period if certain performance levels are achieved based on the charts set forth below.

36 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Executive Compensation

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: pc_revenue-pn.jpg]](pc_revenue-pn.jpg) REVENUE METRIC (20% OF TOTAL)  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: pc_revenue-pn.jpg]](pc_revenue-pn.jpg) REVENUE METRIC (20% OF TOTAL)  |
| CAGR REVENUE GROWTH  | POTENTIAL ADDITIONAL SHARES <br> AS A % OF INITIAL GRANT  |
| 5.5% | 10% |
| 6.0% | 20% |
| 6.5% | 30% |
| 7.0% | 40% |
| 7.5% | 50% |
| 8.0% | 60% |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: pc_operate-pn.jpg]](pc_operate-pn.jpg) OPERATING INCOME METRIC (80% OF TOTAL)  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: pc_operate-pn.jpg]](pc_operate-pn.jpg) OPERATING INCOME METRIC (80% OF TOTAL)  |
| CAGR EBIT GROWTH  | POTENTIAL ADDITIONAL SHARES <br> AS A % OF INITIAL GRANT  |
| 7.5% | 10% |
| 8.0% | 20% |
| 8.5% | 30% |
| 9.0% | 40% |
| 9.5% | 50% |
| 10.0% | 60% |

---

In the event of a change of control, the initial grant would vest upon the change of control; performance for any annual periods remaining in association with a particular grant will be assumed to be achieved at the maximum payout levels for the purposes of awarding additional incentive shares or units in connection with the change of control.

Our compound annual revenue growth for fiscal year 2025 was 7.49% and 15.76%, respectively, against the applicable baselines for each grant, and our compound annual operating income growth for fiscal year 2025 was 17.47% and 24.91%, respectively, against the applicable baselines for each grant. Therefore, our executive officers earned additional shares as follows: Mr. Mehra, 15,362 shares; Mr. Chopra: 82,845 shares; Mr. Edrick, 28,345 shares; Mr. Sze, 22,449 shares; Mr. Mansouri, 991 shares; and Mr. Morben, 1,270 shares.

The Compensation Committee determines, after consultation with our Chief Executive Officer, the target number of equity awards to grant to our Named Executive Officers. The grant amounts for our Chief Executive Officer are determined solely by the Compensation Committee. The Compensation Committee considers individual performance, including the following quantitative and qualitative factors, as well as overall corporate performance.

OSI SYSTEMS, INC. 2025 Proxy Statement \| 37

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Executive Compensation

---

| | |
|:---|:---|
| INDIVIDUAL AND CORPORATE PERFORMANCE FACTORS  | INDIVIDUAL AND CORPORATE PERFORMANCE FACTORS  |
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Quality of the management of units or functions managed by the Named Executive Officer <br>**  |
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Leadership of personnel under the Named Executive Officer's management <br>|
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Execution of strategically important projects <br>|
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Overall effectiveness of units or functions managed by the Named Executive Officer <br>|
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Contributions to the formulation of Company strategy and tactics <br>|
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Contributions to stockholder value <br>|
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Management of risk <br>|
| **QUANTITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Financial performance (including earnings per share and internal metrics) <br>**  |
| **QUANTITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Financial performance metrics for business units managed by the Named Executive Officer <br>|
| **QUANTITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Compensation surveys provided by external advisors <br>|

---

For fiscal year 2025 performance share calculation purposes, our Chief Executive Officers, Chief Financial Officer, and General Counsel, were measured against consolidated Company performance, and the President of our Optoelectronics and Manufacturing division and the Chief Technology Officer of our Optoelectronics and Manufacturing division had their performance results weighted 70% based on division performance and 30% based on consolidated Company performance.

Benefits and Perquisites

Benefits and perquisites are designed to attract and retain key employees. Currently, our Named Executive Officers are eligible to participate in benefit plans available to all employees, including our:

▪ 401(k) Plan,

▪ Employee Stock Purchase Plan,

▪ medical, dental, and vision health insurance plans, and

▪ life and long-term disability insurance plans.

The 401(k) Plan, Employee Stock Purchase Plan and the medical, dental and vision plans require each participant to pay a contributory amount. We have elected to pay amounts contributed to medical, dental and vision health insurance plans and life and long-term disability insurance plans on behalf of our Named Executive Officers. In addition, we maintain an executive medical reimbursement plan under which our Named Executive Officers receive reimbursement for out-of-pocket expenses not covered by their health insurance plans. Employee individual plan contributions are subject to the maximum contribution allowed by the Internal Revenue Code. We lease automobiles for or provide an auto allowance to certain of our Named Executive Officers.

We maintain a Nonqualified Deferred Compensation Plan (the "Deferred Compensation Plan") that is unfunded for federal tax purposes and allows certain of our Named Executive Officers and a select group of other managers or highly compensated employees (as designated by the Compensation Committee) to defer a specified percentage of certain compensation, including salary, bonuses and commissions. Distributions may be made in a lump sum (or in installments if elected in accordance with the terms of the Deferred Compensation Plan) upon termination of employment, disability, a specified withdrawal date or death. Additional information about this plan is summarized below under the heading "Nonqualified Deferred Compensation."

We also maintain a Nonqualified Defined Benefit Plan (the "Defined Benefit Plan") that is unfunded for federal tax purposes and that constitutes an unsecured promise by the Company to make payments to participants in the future following their retirement, termination in connection with a change in control of the Company, or their death or disability. Under the terms of the Defined Benefit Plan, a committee designated by the Board may select participants from among our Named Executive Officers and a select group of managers or other highly compensated employees. Currently, Mr. Chopra is the only participant in this plan. Additional information about this plan is summarized below under the heading "Pension Benefits."

38 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Executive Compensation

Total Compensation Mix

While the Compensation Committee does not apply a predetermined or mathematical weighting to determine the fixed and variable elements of compensation, the Compensation Committee believes that the elements described above provide a well-proportioned mix of equity based, at risk or performance-based compensation, and retention-based compensation that produces short-term and long-term incentives and rewards. We believe this compensation mix provides our Named Executive Officers a measure of security as to the minimum levels of compensation that they are eligible to receive, while motivating the Named Executive Officers to focus on the business measures that will produce a high level of corporate performance, as well as reducing the risk of recruitment of highly qualified executive talent by our competitors. The mix of annual incentives and the equity-based awards likewise provides an appropriate balance between short-term financial performance and long-term financial and stock performance. We believe that this compensation mix results in a pay-for-performance orientation that is aligned with our compensation philosophy, which takes into account individual, group and Company performance.

#### BASES FOR OUR COMPENSATION POLICIES AND DECISIONS
In determining target compensation opportunities for our Named Executive Officers for fiscal 2025, the Compensation Committee performed a review of both overall and relative individual Named Executive Officer and corporate performance based on the qualitative and quantitative factors described in the table below. The factors considered did not have any predetermined or mathematical weighting; rather, the Compensation Committee considered the overall performance of each executive, considering the factors, and including consideration of unplanned events and issues emerging during the fiscal year. Each factor was evaluated and taken into consideration in the Compensation Committee's overall determination of each Named Executive Officer's total compensation package, including both the amount of compensation as well as allocation of such compensation between short-term and long-term components.

---

| | |
|:---|:---|
| INDIVIDUAL AND CORPORATE PERFORMANCE FACTORS  | INDIVIDUAL AND CORPORATE PERFORMANCE FACTORS  |
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Furtherance of long-term goals <br>**  |
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Individual performance and experience <br>|
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Demonstration of leadership skills and ability <br>|
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Achievement of strategic targets <br>|
| **QUALITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Management of unplanned events and issues emerging during the fiscal year <br>|
| **QUANTITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **&nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Compensation paid in prior years <br>**  |
| **QUANTITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Financial performance of Company/division/business unit <br>|
| **QUANTITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Peer group compensation and performance data <br>|
| **QUANTITATIVE FACTORS**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Compensation surveys provided by external advisors <br>|

---

The Compensation Committee's review included evaluating the compensation of the Named Executive Officers in light of information regarding the compensation practices and corporate financial performance of other companies. In making its determinations, the Compensation Committee reviewed information summarizing the compensation paid at peer group companies and more broad-based compensation surveys. The peer companies were developed based on similarity in size and operations within the industries in which we operate as follows:

OSI SYSTEMS, INC. 2025 Proxy Statement \| 39

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Executive Compensation

---

| | | |
|:---|:---|:---|
| PEER GROUP<sup>(1)</sup>  | PEER GROUP<sup>(1)</sup>  | PEER GROUP<sup>(1)</sup>  |
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>AAR Corp. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>IPG Photonics Corporation <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Netgear, Inc. <br>|
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Avanos Medical, Inc. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Itron, Inc. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>NetScout Systems, Inc. <br>|
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Cognex Corporation <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Knowles Corp. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Novanta Inc. <br>|
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Enovis Corporation <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Kratos Defense & Security Solutions, Inc. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Varex Imaging Corp. <br>|
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Extreme Networks, Inc. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Lumentum Holdings Inc. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Viasat, Inc. <br>|
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>F5, Inc. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Masimo Corporation <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Viavi Solutions Inc. <br>|
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Haemonetics Corporation <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Methode Electronics, Inc. <br>| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Vishay Intertechnology, Inc. <br>|
| &nbsp;&nbsp;&nbsp;&nbsp; ▪ <br>Hexcel Corporation <br>|  |  |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

Prior peers Infinera Corporation and Kaman Corporation are no longer publicly-held.

The peer companies were selected based on a set of established criteria intended to select companies that are:

▪ similar in size,

▪ operate in similar end markets, proportional to our principal lines of business, and

▪ compete with us for executive talent.

Companies were selected from the following industries, based on a range of comparable financial metrics:

▪ aerospace and defense,

▪ communications equipment,

▪ electronic equipment instruments, and components, and

▪ healthcare equipment and supplies industries.

The Compensation Committee has engaged independent compensation consulting firm, Pearl Meyer, to provide advisory services on executive compensation matters. The Compensation Committee also considered compensation levels and practices for executives holding comparable positions. This review further assisted the Compensation Committee in determining the appropriate level and mix of compensation for each Named Executive Officer. In connection with its review, the Compensation Committee also considered that certain Named Executive Officers were located in the high cost of living area in the geographic location of our Company headquarters.

While the Compensation Committee did not engage in formal benchmarking with pre-established targets, the Compensation Committee reviewed our actual performance taken as a whole, as well as our performance relative to our peer group and established compensation levels at the competitive level that it believed most appropriately corresponded to our comparative performance.

The Compensation Committee believes that the fixed component of compensation is designed to compensate each Named Executive Officer based on the duties and scope of responsibilities of his position and the experience he brings to the position. Consistent with the Company's pay-for-performance philosophy, the variable component of compensation, in the form of annual incentives and performance-based equity grants comprised a significant portion of total compensation.

The Compensation Committee's compensation decisions are designed to encourage performance that enhances long-term stockholder value. The Compensation Committee believes that attracting and retaining executive talent capable of achieving our long-term, strategic objectives is the best way to align executive compensation decisions with the interests of stockholders. The Compensation Committee also believes that meeting financial targets as well as near-term strategic goals demonstrates whether an executive is on track to accomplish longer-term objectives.

40 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Executive Compensation

#### COMPENSATION POLICIES AND PRACTICES
Minimum Equity Ownership and Retention Guidelines

---

| | |
|:---|:---|
| We believe that our executive officers should hold a significant amount of Company equity to link their long-term economic interests directly to those of our stockholders. Accordingly, we have established requirements that executive officers own at minimum equity of the Company valued at five times their respective annual base salaries.  | ![[MISSING IMAGE: tb_salary-pn.jpg]](tb_salary-pn.jpg)  |

---

We believe that this multiple constitutes significant amounts for our executive officers and provides a substantial link between the interests of our executive officers and those of our stockholders. Executive officers have five years from the date of appointment to attain such ownership levels. During such time that an executive officer has not attained the share ownership guideline, such officer is required to retain at least 50% of the shares acquired upon exercise of options or vesting of RSUs, net of amounts required to pay taxes and exercise price. We periodically review our minimum equity ownership guidelines. For purposes of meeting the ownership requirements, unvested RSUs are counted, but unearned performance awards and unexercised stock options are not. Each of our Named Executive Officers meets or exceeds our minimum equity ownership guidelines.

Clawback Policy

In October 2023, we adopted a clawback policy consistent with SEC requirements and the Listing Standards. The policy provides that if an accounting restatement is required due to material non-compliance with any financial reporting requirements, then we will seek to recover any incentive-based compensation received by any of our current or former executive officers over the prior three completed fiscal years preceding the date that the restatement is required to the extent such compensation exceeds the amount of incentive-based compensation that would have been paid based on the restated financial reporting measure, regardless of whether or not the current or former executive officer was at fault in the circumstances leading to the restatement. Each Named Executive Officer's employment agreement also contains a clawback provision.

Policy Prohibiting the Hedging or Pledging of Company Stock

We have adopted a policy that prohibits our employees and directors from entering into any transaction that is designed to hedge or offset any decrease in the market value of our Common Stock or other equity securities. Our Board has determined that transactions in mutual funds or other similar type investment vehicles that contain less than 50% Company stock at the time of an employee's or director's initial investment is not considered a hedge for purposes of our policy. We have also adopted a policy that prohibits our executive officers and directors from holding Company stock or other equity securities in margin accounts or pledging Company stock or other equity securities as collateral for a loan. As of the date of this Proxy Statement, no shares of Company stock are pledged by any Named Executive Officer or director.

Policies and Practices Related to the Grant of Certain Equity Awards

Our practice is generally to not grant stock options in anticipation of the release of material nonpublic information and not time the public release of such information based on stock option grant dates. These restrictions do not apply to RSUs or other types of equity awards that do not include an exercise price related to the market price of our common stock on the date of grant. In fiscal 2025, we did not grant new awards of stock options, stock appreciation rights, or similar option-like instruments to our Named Executive Officers.

OSI SYSTEMS, INC. 2025 Proxy Statement \| 41

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Executive Compensation

#### EMPLOYMENT AGREEMENTS
We have entered into employment agreements with Messrs. Mehra, Edrick, and Sze. The terms of each of such agreements or arrangements are summarized below under the heading "Employment Agreements." These types of arrangements are used to retain executives and formalize the terms of the executives' employment. Mr. Chopra's employment agreement expired by its terms on January 1, 2024, and Mr. Chopra does not currently have an employment agreement with the Company. Mr. Mansouri's employment agreement expired by its terms on January 1, 2025, and Mr. Mansouri does not currently have an employment agreement with the Company.

#### TAX CONSIDERATIONS
Section 162(m) of the Internal Revenue Code generally places a $1 million limit on the amount of compensation a publicly held company can deduct in any tax year on compensation paid to "covered employees." The Compensation Committee will award compensation that it determines to be consistent with the goals of our executive compensation program even if such compensation is not tax deductible.

42 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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EXECUTIVE COMPENSATION

### COMPENSATION TABLES

#### SUMMARY COMPENSATION TABLE
The following table sets forth the compensation for our principal executive officers, principal financial officer, and our three highest paid executive officers serving as executive officers on June 30, 2024 (the "Named Executive Officers") for the fiscal years ended June 30, 2025, 2024, and 2023. During fiscal year 2025, effective December 31, 2024, Mr. Chopra retired from his position as President and Chief Executive Officer and was succeeded by Mr. Mehra. Therefore, for fiscal year 2025, our Named Executive Officers include both Mr. Chopra and Mr. Mehra as Chief Executive Officers.

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| NAME AND <br> PRINCIPAL POSITION  | YEAR  | SALARY <br> ($)  | BONUS<sup>(1)</sup> <br> ($)  | STOCK <br> AWARDS<sup>(2)</sup> <br> ($)  | OPTION <br> AWARDS <br> ($)  | NON-EQUITY <br> INCENTIVE PLAN <br> COMPENSATION<sup>(3)</sup> <br> ($)  | CHANGE IN <br> PENSION <br> VALUE AND <br> NONQUALIFIED <br> DEFERRED <br> COMPENSATION <br> EARNINGS<sup>(4)</sup> <br> ($)  | ALL OTHER <br> COMPENSATION<sup>(5)(6)(7)</sup> <br> ($)  | TOTAL <br> ($)  |
|  **Ajay Mehra** <br> President and Chief Executive Officer  | 2025 | 621448 |  | 5269720 |  | 1500000 |  | 120973 | 7512141 |
|  **Ajay Mehra** <br> President and Chief Executive Officer  | 2024 | 492340 |  | 504986 |  | 4675000 |  | 104772 | 5777098 |
|  **Ajay Mehra** <br> President and Chief Executive Officer  | 2023 | 477721 |  | 504947 |  | 2925000 |  | 92210 | 3999878 |
|  **Deepak Chopra** <br> Executive Chairman of the <br> Board  | 2025 | 664392 |  | 2609127 |  | 1285440 | (9)  | 89666 | 4648625 |
|  **Deepak Chopra** <br> Executive Chairman of the <br> Board  | 2024 | 1034800 | 13500000 | 4000008 |  | 2069600 | (8)  | 79110 | 20683518 |
|  **Deepak Chopra** <br> Executive Chairman of the <br> Board  | 2023 | 995000 |  | 4833221 |  | 1990000 | 204135 | 85392 | 8107748 |
|  **Alan Edrick** <br> Executive Vice President <br> and Chief Financial Officer  | 2025 | 534095 |  | 1884972 |  | 802041 |  | 109028 | 3330136 |
|  **Alan Edrick** <br> Executive Vice President <br> and Chief Financial Officer  | 2024 | 519120 |  | 1683168 |  | 778680 |  | 87641 | 3068609 |
|  **Alan Edrick** <br> Executive Vice President <br> and Chief Financial Officer  | 2023 | 503716 |  | 1683126 |  | 756000 |  | 91133 | 3033975 |
|  **Victor S. Sze** <br> Executive Vice President, <br> General Counsel and Secretary  | 2025 | 460974 |  | 1375325 |  | 623016 |  | 95320 | 2554635 |
|  **Victor S. Sze** <br> Executive Vice President, <br> General Counsel and Secretary  | 2024 | 448050 |  | 1375330 |  | 604868 |  | 91512 | 2519760 |
|  **Victor S. Sze** <br> Executive Vice President, <br> General Counsel and Secretary  | 2023 | 434756 |  | 1375310 |  | 587250 |  | 80694 | 2478010 |
|  **Manoocher Mansouri** <br> Chief Technology Officer of Optoelectronics <br> and Manufacturing <br> Division  | 2025 | 334469 | 105000 | 99955 |  |  |  | 61450 | 600874 |
|  **Manoocher Mansouri** <br> Chief Technology Officer of Optoelectronics <br> and Manufacturing <br> Division  | 2024 | 328570 | 115000 | 275019 |  |  |  | 59883 | 778472 |
|  **Manoocher Mansouri** <br> Chief Technology Officer of Optoelectronics <br> and Manufacturing <br> Division  | 2023 | 318808 | 135000 | 274975 |  |  |  | 56285 | 785068 |
|  **Paul Morben** <br> President of Optoelectronics and Manufacturing Division  | 2025 | 330302 | 83214 | 274982 |  |  |  | 38700 | 727198 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp; (1)

Under the terms of Mr. Chopra's employment agreement entered into in April 2012, and as amended effective as of July 1, 2015 and December 31, 2017, upon Mr. Chopra's continued employment through January 1, 2024, he became entitled to and received a $13,500,000 stay bonus. As previously disclosed, Mr. Chopra retired from his roles as President and Chief Executive Officer on December 31, 2024, and was succeeded by Ajay Mehra effective January 1, 2025.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Represents the aggregate grant date fair value computed in accordance with generally accepted accounting principles of awards granted during the applicable fiscal year. Stock Awards column includes performance-based awards granted at target values. For additional information on the maximum amounts that could be earned if all metrics are achieved at the highest levels, see the Grants of Plan-Based Awards Table below. See Note 9 to the Consolidated Financial Statements included in our Form 10-K for the fiscal year ended June 30, 2025 for a discussion of the assumptions used in valuation of stock awards.

&nbsp;&nbsp;&nbsp;&nbsp; (3)

Represents amounts earned under the annual incentive program and, for fiscal years 2023 and 2024, for Mr. Mehra under the Cargo Incentive Program (as described in the Company's proxy statement filed with the SEC on October 25, 2024).

&nbsp;&nbsp;&nbsp;&nbsp; (4)

We initially adopted the Defined Benefit Plan, as amended, during fiscal year 2008. Mr. Chopra is currently the only participant in the Defined Benefit Plan. The amount included in this column for fiscal 2025 represent the aggregate change in the present value of the accumulated benefit from June 30, 2024 to June 30, 2025 based on actuarial

OSI SYSTEMS, INC. 2025 Proxy Statement \| 43

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EXECUTIVE COMPENSATION

assumptions and therefore do not reflect the Company's liability as of June 30, 2025 under the plan or the plan's effect on the Company's earnings in the stated period.

(5) Individual breakdowns of amounts set forth in "All Other Compensation" with respect to the fiscal year ended June 30, 2025 are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| NAME  | MATCHING 401(K), <br> NONQUALIFIED <br> DEFERRED <br> COMPENSATION<sup>(a)</sup> <br> ($)  | CAR <br> BENEFIT <br> ($)  | HEALTH <br> INSURANCE AND <br> MEDICAL <br> REIMBURSEMENT <br> PAYMENTS <br> ($)  | LIFE AND L-T <br> DISABILITY <br> INSURANCE <br> PAYMENTS <br> ($)  | TOTAL ALL <br> OTHER <br> COMPENSATION <br> ($)  |
| Ajay Mehra | 75552 | 6675 | 27283 | 11463 | 120973 |
| Deepak Chopra | 8950 | 3300 | 12325 | 65091 | 89666 |
| Alan Edrick | 63954 | 3135 | 37703 | 4236 | 109028 |
| Victor S. Sze | 56615 | 4761 | 24219 | 9725 | 95320 |
| Manoocher <br> Mansouri  | 40407 | 7200 | 10144 | 3699 | 61450 |
| Paul Morben | 29064 |  | 8437 | 1199 | 38700 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (a)

Company matching amounts for the 401(k) Plan and Deferred Compensation Plan are subject to vesting schedules as specified in the applicable plan documents.

(6) Individual breakdowns of amounts set forth in "All Other Compensation" with respect to the fiscal year ended June 30, 2024 are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| NAME  | MATCHING 401(K), <br> NONQUALIFIED <br> DEFERRED <br> COMPENSATION<sup>(a)</sup> <br> ($)  | CAR <br> BENEFIT <br> ($)  | HEALTH <br> INSURANCE AND <br> MEDICAL <br> REIMBURSEMENT <br> PAYMENTS <br> ($)  | LIFE AND L-T <br> DISABILITY <br> INSURANCE <br> PAYMENTS <br> ($)  | TOTAL ALL <br> OTHER <br> COMPENSATION <br> ($)  |
| Ajay Mehra | 59258 | 6675 | 27202 | 11637 | 104772 |
| Deepak Chopra | 10099 | 3300 | 14679 | 51032 | 79110 |
| Alan Edrick | 61943 | 3135 | 18153 | 4410 | 87641 |
| Victor S. Sze | 54818 | 4761 | 22034 | 9899 | 91512 |
| Manoocher Mansouri  | 39767 | 7200 | 9044 | 3872 | 59883 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (a)

Company matching amounts for the 401(k) Plan and Deferred Compensation Plan are subject to vesting schedules as specified in the applicable plan documents.

(7) Individual breakdowns of amounts set forth in "All Other Compensation" with respect to the fiscal year ended June 30, 2023 are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| NAME  | MATCHING 401(K), <br> NONQUALIFIED <br> DEFERRED <br> COMPENSATION<sup>(a)</sup> <br> ($)  | CAR <br> BENEFIT <br> ($)  | HEALTH <br> INSURANCE AND <br> MEDICAL <br> REIMBURSEMENT <br> PAYMENTS <br> ($)  | LIFE AND L-T <br> DISABILITY <br> INSURANCE <br> PAYMENTS <br> ($)  | TOTAL ALL <br> OTHER <br> COMPENSATION <br> ($)  |
| Ajay Mehra | 57103 | 6675 | 16861 | 11571 | 92210 |
| Deepak Chopra | 9150 | 3300 | 21998 | 50944 | 85392 |
| Alan Edrick | 59706 | 3135 | 23949 | 4343 | 91133 |
| Victor S. Sze | 52784 | 4761 | 13266 | 9883 | 80694 |
| Manoocher Mansouri  | 38213 | 7200 | 7087 | 3785 | 56285 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (a)

Company matching amounts for the 401(k) Plan and Deferred Compensation Plan are subject to vesting schedules as specified in the applicable plan documents.

(8) The change in the present value of the accumulated benefit during fiscal year 2024 was $-8,751,465, and Mr. Chopra received distributions of $6,068,721 under the terms of the Defined Benefit Plan.

44 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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EXECUTIVE COMPENSATION

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp; (9)

The change in present value of the accumulated benefit during fiscal year 2025 was $-660,585, and Mr. Chopra received distributions of $1,362,039 under the terms of the Defined Benefit Plan.

#### GRANTS OF PLAN-BASED AWARDS TABLE
The following table sets forth the plan-based awards made during the fiscal year ended June 30, 2025 to each of our Named Executive Officers<sup>(1)</sup>:

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | ESTIMATED FUTURE <br> PAYOUTS UNDER <br> NON-EQUITY AWARDS  | ESTIMATED FUTURE <br> PAYOUTS UNDER <br> NON-EQUITY AWARDS  | ESTIMATED FUTURE <br> PAYOUTS UNDER <br> NON-EQUITY AWARDS  | ESTIMATED FUTURE <br> PAYOUTS UNDER <br> EQUITY INCENTIVE <br> PLAN AWARDS<sup>(3)</sup>  | ESTIMATED FUTURE <br> PAYOUTS UNDER <br> EQUITY INCENTIVE <br> PLAN AWARDS<sup>(3)</sup>  | ESTIMATED FUTURE <br> PAYOUTS UNDER <br> EQUITY INCENTIVE <br> PLAN AWARDS<sup>(3)</sup>  | ALL <br> OTHER <br> STOCK <br> AWARDS: <br> NUMBER <br> OF SHARES <br> OF STOCK <br> OR UNITS <br> (#)  | GRANT <br> DATE <br> FAIR <br> VALUE OF <br> STOCK AND <br> OPTION <br> AWARDS<sup>(7)</sup> <br> ($)  |
| NAME AND POSITION  | GRANT <br> DATE  | THRESHOLD<sup>(2)</sup> <br> ($)  | TARGET <br> ($)  | MAXIMUM <br> ($)  | THRESHOLD<sup>(4)</sup> <br> (#)  | TARGET<sup>(5)</sup> <br> (#)  | MAXIMUM<sup>(6)</sup> <br> (#)  | ALL <br> OTHER <br> STOCK <br> AWARDS: <br> NUMBER <br> OF SHARES <br> OF STOCK <br> OR UNITS <br> (#)  | GRANT <br> DATE <br> FAIR <br> VALUE OF <br> STOCK AND <br> OPTION <br> AWARDS<sup>(7)</sup> <br> ($)  |
|  **Ajay Mehra** <br> President and Chief Executive Officer  | 8/14/2024 |  |  |  |  | 4071 | 11399 |  | 565950 |
|  **Ajay Mehra** <br> President and Chief Executive Officer  | 12/4/2024 |  |  |  |  | 11427(8) | 31996 |  | 2057888 |
|  **Ajay Mehra** <br> President and Chief Executive Officer  | 12/4/2024 |  |  |  |  | 14692(8) |  |  | 2645882 |
|  **Ajay Mehra** <br> President and Chief Executive Officer  |  |  | 750000 | 1500000 |  |  |  |  |  |
|  **Deepak Chopra** <br> Executive Chairman of the Board  | 8/14/2024 |  |  |  |  | 18768 | 30029 |  | 2609127 |
|  **Deepak Chopra** <br> Executive Chairman of the Board  |  |  | 642720 | 1285440 |  |  |  |  |  |
|  **Alan Edrick** <br> Executive Vice President <br> and Chief Financial Officer  | 8/14/2024 |  |  |  |  | 13559 | 37965 |  | 1884972 |
|  **Alan Edrick** <br> Executive Vice President <br> and Chief Financial Officer  |  |  | 534694 | 802041 |  |  |  |  |  |
| &nbsp;&nbsp; **Victor S. Sze** <br> Executive Vice President, <br> General Counsel and <br> Secretary  | 8/14/2024 |  |  |  |  | 9893 | 27700 |  | 1375325 |
| &nbsp;&nbsp; **Victor S. Sze** <br> Executive Vice President, <br> General Counsel and <br> Secretary  |  |  | 461492 | 623016 |  |  |  |  |  |
|  **Manoocher Mansouri** <br> Chief Technology Officer, Optoelectronics <br> and Manufacturing <br> Division  | 8/14/2024 |  |  |  |  |  |  | 719(9) | 99955 |
|  **Paul Morben** <br> President, Optoelectronics <br> and Manufacturing <br> Division  | 8/14/2024 |  |  |  |  | 1978 | 5538 |  | 274982 |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

We have omitted from this table the columns titled "All Other Option Awards: Number of Securities Underlying Options," and "Exercise or Base Price of Option Awards" because no amounts would have been included in such columns.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

No amounts are shown in this column as our annual incentive program provides for no award under certain circumstances.

&nbsp;&nbsp;&nbsp;&nbsp; (3)

Performance-based awards vest upon the attainment of certain one-, two- and three-year performance targets.

&nbsp;&nbsp;&nbsp;&nbsp; (4)

No amounts are shown in this column as our long-term performance program provides for none of the RSUs to vest under certain circumstances, as more fully explained above in the section entitled "Long-Term Incentive Program."

&nbsp;&nbsp;&nbsp;&nbsp; (5)

Represents the initial awards granted to the executives as more fully explained above in the section entitled "Long-Term Incentive Program."

&nbsp;&nbsp;&nbsp;&nbsp; (6)

Represents the maximum that each executive could receive if all performance metrics are achieved at the highest levels as more fully explained above in the section entitled "Long-Term Incentive Program."

&nbsp;&nbsp;&nbsp;&nbsp; (7)

The grant date fair value of the RSUs was computed in accordance with generally accepted accounting principles and represents the total projected expense to the Company of grants made during the past fiscal year.

&nbsp;&nbsp;&nbsp;&nbsp; (8)

Granted in connection with Mr. Mehra's appointment as President and Chief Executive Officer.

&nbsp;&nbsp;&nbsp;&nbsp; (9)

Time-based award that vests in equal annual installments over a three-year period.

OSI SYSTEMS, INC. 2025 Proxy Statement \| 45

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EXECUTIVE COMPENSATION

#### OUTSTANDING EQUITY AWARDS AT FISCAL YEAR-END
The following table sets forth the outstanding equity awards for each Named Executive Officer as of June 30, 2025<sup>(1)</sup>:

---

| | | |
|:---|:---|:---|
| NAME AND PRINCIPAL POSITION  | EQUITY INCENTIVE PLAN <br> AWARDS: NUMBER OF <br> UNEARNED SHARES, <br> UNITS OR OTHER RIGHTS <br> THAT HAVE NOT VESTED<sup>(2)</sup> <br> (#)  | EQUITY INCENTIVE PLAN <br> AWARDS: MARKET OR <br> PAYOUT VALUE OF <br> UNEARNED SHARES, UNITS <br> OR OTHER RIGHTS THAT <br> HAVE NOT VESTED<sup>(3)</sup> <br> ($)  |
|  **Ajay Mehra <br> President and Chief Executive Officer**  | 40295 | 9060734 |
|  **Deepak Chopra <br> Executive Chairman of the Board**  | 108404 | 24375723 |
|  **Alan Edrick** <br> Executive Vice President and <br> Chief Financial Officer  | 47241 | 10622611 |
|  **Victor S. Sze** <br> Executive Vice President, <br> General Counsel and Secretary  | 37415 | 8413137 |
|  **Manoocher Mansouri** <br> Chief Technology Officer, Optoelectronics and Manufacturing Division  | 6222 | 1399079 |
|  **Paul Morben** <br> President, Optoelectronics and Manufacturing Division  | 7051 | 1585488 |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

We have omitted from this table the "Option Awards" and "Stock Awards" columns because no amounts would have been included in such columns.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Performance based awards vest upon the attainment of certain one-, two- and three-year performance targets.

&nbsp;&nbsp;&nbsp;&nbsp; (3)

The market value of RSU awards that have not yet vested is based on the number of unvested RSUs on June 30, 2025 multiplied by the closing price of our Common Stock on June 30, 2025 ($224.86 per share).

46 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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EXECUTIVE COMPENSATION

#### OPTION EXERCISES AND STOCK VESTED TABLE
The following table sets forth information regarding the exercise of options by and the vesting of RSUs held by each of our Named Executive Officers during fiscal year ended June 30, 2025:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | OPTION AWARDS  | OPTION AWARDS  | STOCK AWARDS  | STOCK AWARDS  |
| NAME AND <br> PRINCIPAL POSITION | NUMBER OF SHARES <br> ACQUIRED ON <br> EXERCISE <br> (#)  | VALUE REALIZED <br> ON <br> EXERCISE <br> ($)  | NUMBER OF SHARES <br> ACQUIRED ON <br> VESTING<sup>(1)</sup> <br> (#)  | VALUE REALIZED <br> ON <br> VESTINGS<sup>(2)</sup> <br> ($)  |
|  **Ajay Mehra** <br> President and Chief Executive Officer  |  |  | 13678 | 3075635 |
|  **Deepak Chopra** <br> Executive Chairman of the Board  |  |  | 164638 | 37020501 |
|  **Alan Edrick** <br> Executive Vice President <br> and Chief Financial Officer  |  |  | 45590 | 10251367 |
|  **Victor S. Sze** <br> Executive Vice President, <br> General Counsel and Secretary  |  |  | 38308 | 8613937 |
|  **Manoocher Mansouri** <br> Chief Technology Officer, Optoelectronics and Manufacturing Division  |  |  | 3854 | 866610 |
|  **Paul Morben** <br> President, Optoelectronics and <br> Manufacturing Division  |  |  | 2994 | 673231 |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

Includes shares acquired from the vesting of performance-based RSU awards based upon performance in fiscal years 2022, 2023 and 2024.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Represents the number of RSU awards that vested multiplied by the fair market price of our Common Stock on the date of vesting.

#### PAY RATIO
Pursuant to the Dodd Frank Act, the SEC adopted a rule requiring annual disclosure of the ratio of the median employee's annual total compensation to the annual total compensation of our Chief Executive Officers. The compensation for Mr. Mehra in fiscal year 2025 was approximately 371 times the median pay of our employees.

The compensation for Mr. Chopra in fiscal year 2025 was approximately 230 times the median pay of our employees.

Median employee total annual compensation (excluding the CEO's total annual compensation): $20,224 (figure converted to United States dollars (USD) from Malaysian ringgit (MYR) at 1 USD to 4.226 MYR, the June 30, 2025 exchange rate as published by Oanda.com).

Mr. Mehra total annual compensation: $7,512,141

Mr. Chopra total annual compensation: $4,648,625

Ratio of Mr. Mehra to median employee compensation: 371 to 1

Ratio of Mr. Chopra to median employee compensation: 230 to 1

OSI SYSTEMS, INC. 2025 Proxy Statement \| 47

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EXECUTIVE COMPENSATION

With respect to the annual total compensation of our Chief Executive Officers, we used the amount reported in the "Total" column of the Summary Compensation Table above. We identified the median employee by reviewing the fiscal year 2025 annual base pay for all individuals, excluding our Chief Executive Officers, who were employed by us on June 30, 2025. We included all employees globally, including for example Indonesia, India, Malaysia, Mexico, and Guatemala, among others, without regard to location, whether employed on a full-time, part-time, or seasonal basis. We did not make any assumptions, adjustments or estimates with respect to compensation other than annualizing the compensation for any full-time employees that were not employed by us for all of fiscal 2025. Using this methodology, we determined that the median employee was a full-time salaried employee located in Malaysia. A significant percentage of our employees are located in countries where the cost of living and wages are substantially lower than in the United States. Compensation rates are set to be market-competitive in the country in which the jobs are performed. Accordingly, the resulting CEO to median employee pay ratios are substantially higher than they would have been if the cost of living and wages in those countries were comparable to the United States.

These pay ratios are reasonable estimates calculated in a manner consistent with SEC rules based on our payroll and employment records and the methodology described above. The SEC rules for identifying the median compensated employee and calculating the pay ratio based on that employee's annual total compensation allow companies to adopt a variety of methodologies, to apply certain exclusions, and to make reasonable estimates and assumptions that reflect their compensation practices. Therefore, the pay ratio reported by other companies may not be comparable to the pay ratios reported above, as other companies may have different employment and compensation practices and may utilize different methodologies, exclusions, estimates and assumptions in calculating their own pay ratios.

#### PAY VERSUS PERFORMANCE
As required by Section 953(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, and Item 402(v) of Regulation S-K, presented below is the following information about the relationship between executive compensation actually paid and certain financial performance of the Company. For further information concerning our variable pay-for-performance philosophy and how we align executive compensation with our performance, refer to "Executive Compensation—Compensation Discussion and Analysis."

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| YEAR  | SUMMARY <br> COMPENSATION <br> TABLE TOTAL <br> FOR CEO 1 – <br> MEHRA <br> ($)  | COMPENSATION <br> ACTUALLY PAID <br> TO CEO 1 – <br> MEHRA <br> ($)<sup>(1)</sup>  | SUMMARY <br> COMPENSATION <br> TABLE TOTAL <br> FOR CEO 2 – <br> CHOPRA <br> ($)  | COMPENSATION <br> ACTUALLY PAID <br> TO CEO 2 – <br> CHOPRA($)<sup>(1)</sup>  | AVERAGE <br> SUMMARY <br> COMPENSATION <br> TABLE TOTAL <br> FOR NON-CEO <br> NEO<sup>(2)</sup> <br> ($)  | AVERAGE <br> COMPENSATION <br> ACTUALLY PAID <br> TO NON-CEO <br> NEOS<sup>(3)</sup> <br> ($)  | VALUE OF INITIAL FIXED $100 <br> INVESTMENT BASED ON:  | VALUE OF INITIAL FIXED $100 <br> INVESTMENT BASED ON:  | NET <br> INCOME <br> ($)  | OPERATING <br> INCOME <br> ($)  |
| YEAR  | SUMMARY <br> COMPENSATION <br> TABLE TOTAL <br> FOR CEO 1 – <br> MEHRA <br> ($)  | COMPENSATION <br> ACTUALLY PAID <br> TO CEO 1 – <br> MEHRA <br> ($)<sup>(1)</sup>  | SUMMARY <br> COMPENSATION <br> TABLE TOTAL <br> FOR CEO 2 – <br> CHOPRA <br> ($)  | COMPENSATION <br> ACTUALLY PAID <br> TO CEO 2 – <br> CHOPRA($)<sup>(1)</sup>  | AVERAGE <br> SUMMARY <br> COMPENSATION <br> TABLE TOTAL <br> FOR NON-CEO <br> NEO<sup>(2)</sup> <br> ($)  | AVERAGE <br> COMPENSATION <br> ACTUALLY PAID <br> TO NON-CEO <br> NEOS<sup>(3)</sup> <br> ($)  | TOTAL <br> STOCKHOLDER <br> RETURN <br> ($)  | PEER GROUP <br> TOTAL <br> STOCKHOLDER <br> RETURN<sup>(4)</sup> <br> ($)  | NET <br> INCOME <br> ($)  | OPERATING <br> INCOME <br> ($)  |
| 2025 | 7512141 | 13498538 | 4648625 | 34739980 | 1803211 | 7089971 | 301.26 | 159.41 | 149637000 | 217524000 |
| 2024 |  |  | 20683518 | 36160052 | 3035985 | 5431096 | 184.24 | 121.83 | 128154000 | 189061000 |
| 2023 |  |  | 8107748 | 32360845 | 2574233 | 5678095 | 157.86 | 116.39 | 91778000 | 135279000 |
| 2022 |  |  | 9654358 | 16864015 | 2281438 | 2891868 | 114.47 | 99.56 | 115347000 | 121749000 |
| 2021 |  |  | 9567617 | 25897229 | 2395117 | 4987273 | 136.17 | 112.85 | 74049000 | 115371000 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp; (1)

The dollar amounts reported represent the amount of compensation actually paid to our CEOs as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to our CEOs during the applicable year.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Mr. Edrick, Mr. Sze, Mr. Mansouri, and Mr. Morben were our non-CEO NEOs for 2025. Mr. Edrick, Mr. Mehra, Mr. Sze, and Mr. Mansouri were our non-CEO NEOs for 2023 and 2024; Mr. Edrick, Mr. Mehra, Mr. Sze, and Mr. Maginnis were our non-CEO NEOs for 2022 and 2021.

&nbsp;&nbsp;&nbsp;&nbsp; (3)

The dollar amounts reported represent the average amount of compensation actually paid to the NEOs as a group (excluding our CEOs, as applicable), as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs as a group (excluding our CEOs, as applicable) during the applicable year.

&nbsp;&nbsp;&nbsp;&nbsp; (4)

The peer group as reported in our Form 10-K includes Leidos Holdings Inc., Smiths Group Plc, and Conmed Corp.

48 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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EXECUTIVE COMPENSATION

The following table reconciles the total compensation shown in the Summary Compensation Table to the compensation actually paid to NEOs shown in the Pay Versus Performance Table above.

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| YEAR  | SUMMARY <br> COMPENSATION <br> TABLE <br> TOTAL <br> ($)  | EQUITY <br> AWARDS <br> INCLUDED IN <br> SUMMARY <br> COMPENSATION <br> TABLE <br> ($)  | YEAR-END <br> VALUE OF <br> UNVESTED <br> EQUITY <br> AWARDS <br> GRANTED <br> IN YEAR <br> ($)  | CHANGE IN <br> YEAR-END <br> VALUE OF <br> UNVESTED <br> EQUITY <br> AWARDS <br> GRANTED <br> IN PRIOR <br> YEARS <br> ($)  | CHANGE IN <br> VALUE OF <br> UNVESTED <br> EQUITY <br> AWARDS <br> GRANTED <br> IN PRIOR <br> YEARS <br> THAT <br> VESTED <br> DURING <br> YEAR <br> ($)  | CHANGE <br> IN FAIR <br> VALUE OF <br> AWARDS <br> THAT WERE <br> FORFEITED <br> DURING <br> THE YEAR <br> ($)  | CHANGE IN THE <br> ACTUARIAL PRESENT <br> VALUES REPORTED <br> UNDER THE "CHANGE <br> IN PENSION VALUE <br> AND NONQUALIFIED <br> DEFERRED <br> COMPENSATION <br> EARNINGS" COLUMN <br> OF THE SUMMARY <br> COMPENSATION <br> TABLE <br> ($)  | SERVICE <br> COST AND, <br> IF <br> APPLICABLE, <br> PRIOR <br> SERVICE <br> COST FOR <br> PENSION <br> PLANS <br> ($)  | COMPENSATION <br> ACTUALLY PAID <br> ($)  |
| CEO |  |  |  |  |  |  |  |  |  |
| 2025 (CEO 1— <br> Mehra)  | 7512141 | (5269720) | 8879497 | 2245897 | 130723 |  |  |  | 13498538 |
| 2025 (CEO 2— <br> Chopra) | 4648625 | (2609127) | 6752321 | 23925187 | 1644567 |  |  | 378407 | 34739980 |
| 2024 | 20683518 | (4000008) | 7474212 | 9077301 | 2376772 |  |  | 548257 | 36160052 |
| 2023 | 8107748 | (4833221) | 12027821 | 15412481 | 519822 |  | (204135) | 1330329 | 32360845 |
| 2022 | 9654358 | (4833148) | 7514030 | 5867194 | (498504) |  | (1954741) | 1114826 | 16864015 |
| 2021 | 9567617 | (4833177) | 12820549 | 9346813 | 128528 |  | (1754121) | 621020 | 25897229 |
| NON-CEO <br> NEOS  |  |  |  |  |  |  |  |  |  |
| 2025 | 1803211 | (908808) | 2240561 | 3738733 | 216274 |  |  |  | 7089971 |
| 2024 | 3035985 | (959626) | 1759465 | 1263388 | 331884 |  |  |  | 5431096 |
| 2023 | 2574233 | (959590) | 1948519 | 2046128 | 68805 |  |  |  | 5678095 |
| 2022 | 2281438 | (941882) | 1179659 | 505613 | (79244) | (53716) |  |  | 2891868 |
| 2021 | 2395117 | (941838) | 2038210 | 1469741 | 29523 | (3480) |  |  | 4987273 |

---

The following charts reflect the compensation actually paid to our Chief Executive Officers and the average compensation actually paid to the non-CEO NEOs, respectively, as computed in accordance with Item 402(v) of Regulation S-K, and their relation to (i) our TSR, (ii) our net income and (iii) our operating income, in each case for 2021, 2022, 2023, 2024, and 2025. We also show below the relationship between our TSR and the TSR of our peer group over this period.

OSI SYSTEMS, INC. 2025 Proxy Statement \| 49

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![[MISSING IMAGE: lg_osisystemsincnew-pn.jpg]](lg_osisystemsincnew-pn.jpg)

EXECUTIVE COMPENSATION

COMPENSATION ACTUALLY PAID VS. TSR

![[MISSING IMAGE: bc_capvstsr-pn.jpg]](bc_capvstsr-pn.jpg)

COMPENSATION ACTUALLY PAID VS. NET INCOME

We do not consider net income to be one of our most important financial performance measures and, accordingly, it is not utilized in our compensation programs. We believe there is limited relationship, if any, between compensation actually paid and net income. Net income in fiscal year 2022 included a $27.4 million pre-tax gain on sale of a property in a sale-leaseback transaction.

![[MISSING IMAGE: bc_capvsnetinc-pn.jpg]](bc_capvsnetinc-pn.jpg)

50 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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EXECUTIVE COMPENSATION

COMPENSATION ACTUALLY PAID VS. OPERATING INCOME

![[MISSING IMAGE: bc_capvsoperinc-pn.jpg]](bc_capvsoperinc-pn.jpg)

We consider the following to be the most important financial performance measures we used to link compensation actually paid to our NEOs to company performance for fiscal year 2025.

---

| |
|:---|
| FINANCIAL PERFORMANCE MEASURES  |
| Revenue |
| Operating Income (EBIT) |
| AROE |

---

#### PENSION BENEFITS
We maintain the Defined Benefit Plan. The Defined Benefit Plan constitutes an unsecured promise by the Company to make payments to participants upon vesting. Mr. Chopra is currently the only participant in the Defined Benefit Plan.

Under the terms of his participation, Mr. Chopra is entitled to a total benefit of $14.5 million (as adjusted for certain CPI increases) payable over a multi-year period, which commenced January 1, 2024 with a final payment on April 1, 2030. The initial payment was $5.25 million and the remaining payments will be in quarterly installments. Mr. Chopra is fully vested in all benefits under the Defined Benefit Plan. In the event of Mr. Chopra's death or disability, he or his dependents shall receive the present value of the remaining retirement benefits payable within 60 days following his death or disability, as applicable. In the event of Mr. Chopra's Separation from Service (as defined in the Defined Benefit Plan) within 24 months following a Change in Control (as defined in the Defined Benefit Plan), Mr. Chopra shall be entitled to (i) the net present value of $6 million of his retirement benefit payable in a single lump sum within 90 days following his Separation from Service and (ii) the net present value of $4 million of his retirement benefit payable in the form of a single lump sum 90 days following the first anniversary of his Separation from Service, each subject to Section 409A of the Internal Revenue Code. In the event a Change in Control occurs after his Separation from Service during the payout of Mr. Chopra's benefits, the present value of all remaining payments shall be paid in the form of a single lump sum within 90 days following the Change in Control. In the event of a Change in Control, whether before or after Mr. Chopra's Separation from Service, the net present value of all remaining payments with respect to $4.5 million of his retirement benefit shall be paid in the form of a single lump sum within 90 days following the Change in Control.

OSI SYSTEMS, INC. 2025 Proxy Statement \| 51

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EXECUTIVE COMPENSATION

The following table sets forth information regarding the Defined Benefit Plan for the participating Named Executive Officer during fiscal year ended June 30, 2025<sup>(1)</sup>. For a discussion of the valuation method and all material assumptions applied in quantifying the present value of the current accrued benefit, please see Note 13 to the Consolidated Financial Statements included in our Form 10-K for the year ended June 30, 2025.

---

| | | | |
|:---|:---|:---|:---|
| NAME AND PRINCIPAL POSITION  | NUMBER OF YEARS <br> OF CREDITED <br> SERVICE <br> (#)  | PRESENT VALUE OF <br> ACCUMULATED <br> BENEFIT <br> ($)  | PAYMENTS <br> DURING LAST <br> FISCAL YEAR <br> ($)  |
| Deepak Chopra <br> Executive Chairman of the Board | 18 | 8090880 | 1362039 |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

We have omitted from this table the column titled "Plan Name" because only the Defined Benefit Plan is covered by this table.

#### NONQUALIFIED DEFERRED COMPENSATION
We adopted the Deferred Compensation Plan in May 2008, as amended and restated in April 2014. Under the Deferred Compensation Plan, a select group of our management or highly compensated employees (as designated by the Compensation Committee), including certain of our Named Executive Officers, may defer a specified percentage of their salary, bonuses and commissions and thereby defer taxation of these deferred amounts until actual payment of the deferred amounts in future years. The Named Executive Officers may elect to defer up to 80% of their base salary and up to 100% of other types of eligible compensation. The Deferred Compensation Plan also allows us to make discretionary contributions and matching contributions on behalf of eligible participants.

Participating Named Executive Officers receive market-based returns on their deferred compensation amounts based on the performance of a variety of mutual fund-type investment vehicles chosen by them and which are similar to the investment vehicles made available to all employees participating in the Deferred Compensation Plan. Participants may at any time change their investment allocations among the investment vehicles made available under the Deferred Compensation Plan. The rates of return for the various investment vehicles for deferred amounts in the Deferred Compensation Plan in fiscal 2025 ranged from 4.4% to 19.9%.

Distributions to participants may be made in a lump sum (or in installments if elected in accordance with the terms of the Deferred Compensation Plan) upon termination of employment, disability, a specified withdrawal date or death.

52 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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EXECUTIVE COMPENSATION

The following table sets forth information regarding contributions into the Deferred Compensation Plan made by or for each of the participating Named Executive Officers during the fiscal year ended June 30, 2025:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| NAME AND PRINCIPAL POSITION  | EXECUTIVE <br> CONTRIBUTIONS <br> IN LAST FY <br> ($)  | COMPANY <br> CONTRIBUTIONS IN <br> LAST FY<sup>(1)(2)</sup> <br> ($)  | AGGREGATE <br> EARNINGS <br> IN LAST FY <br> ($)  | AGGREGATE <br> WITHDRAWALS/<br>DISTRIBUTIONS<br>($)  | AGGREGATE <br> BALANCE AT <br> LAST FYE <br> ($)  |
| Ajay Mehra <br> President and Chief Executive Officer | 62145 | 62145 | 345453 |  | 3976708 |
| Alan Edrick <br> Executive Vice President and Chief <br> Financial Officer | 370216 | 53409 | 1022075 |  | 9230747 |
| Victor S. Sze <br> Executive Vice President, General Counsel and Secretary | 46098 | 46098 | 387116 |  | 3313976 |
| Manoocher Mansouri <br> Chief Technology Officer, Optoelectronics and Manufacturing Division | 50170 | 33447 | 114810 |  | 1674422 |
| Paul Morben <br> President, Optoelectronics and Manufacturing Division | 22430 | 22430 | 39618 |  | 378822 |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

The amounts reported in the Company Contributions column are reported in the All Other Compensation column in the Summary Compensation Table above.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Represents matching contribution. No discretionary contributions were made in fiscal year 2025.

#### EMPLOYMENT AGREEMENTS
We have entered into employment agreements with Messrs. Mehra, Edrick, and Sze. Mr. Chopra's employment agreement expired by its terms on January 1, 2024, and Mr. Chopra does not currently have an employment agreement with the Company. Mr. Mansouri's employment agreement expired by its terms on January 1, 2025, and Mr. Mansouri does not currently have an employment agreement with the Company.

Ajay Mehra's, Alan Edrick's and Victor Sze's Employment Agreements

On April 29, 2024, Ajay Mehra, then our Executive Vice President and President OSI Security Division, Alan Edrick, our Executive Vice President and Chief Financial Officer, and Victor Sze, our Executive Vice President and General Counsel entered into Amended and Restated Employment Agreements. Mr. Mehra's agreement was amended effective January 1, 2025 in connection with his appointment as Chief Executive Officer. For purposes of this section, Messrs. Mehra, Edrick and Sze are each individually referred to as the "Executive." Other than differences described herein, the terms of such agreements are substantially identical to each other. Unless the agreement is terminated earlier in accordance with its terms, the agreement has a one year term that shall automatically be extended for successive one year periods, unless either party delivers notice of non-renewal to the other party at least 30 days prior to the end of the initial term or any renewal period then in effect. The agreements provide for an initial annual base salary of $750,000 for Mr. Mehra, $519,120 for Mr. Edrick and $448,050 for Mr. Sze. The Executive is also eligible to receive bonus payments from the bonus pool established by us for our officers and employees and to participate in incentive compensation and other employee benefit plans established by us. The agreement contains certain restrictive covenants and other prohibitions that protect our proprietary and confidential information following termination and preclude the Executive during the term of the agreement and for 18 months thereafter from soliciting for hire any individual that was an executive, supervisor or manager of the Company on, or within 90 days prior to, the Executive's last date of employment with us. Each Executive's

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EXECUTIVE COMPENSATION

agreement also contains a clawback provision whereby the Executive's incentive or performance-based compensation shall be subject to reduction or repayment by reason of a correction or restatement of our financial information if and to the extent such reduction or repayment is required by any applicable law.

Under the terms of the agreement, the Company may terminate the Executive's employment at any time for "cause" (as defined in the agreement), or for the following additional reasons: (i) in the event of the Executive's death; (ii) because of physical or mental incapacity or disability, failure to perform the essential functions of his position for an aggregate period of 180 days within any 12 month period; or (iii) without cause on 30 days written notice, each as further detailed in the agreement. The Executive may also terminate his employment agreement for "good reason" (as defined in the agreement) or at any time on 30 days written notice.

In the event of the termination of the Executive's employment by the Company without cause, the Company's non-renewal of the Executive's employment agreement or the termination of such employment by the Executive for good reason, the Executive shall be entitled to: (i) an amount equal to 24 months' salary at the Executive's then-current base salary plus an amount equal to two times the average of the highest three annual bonuses paid by us to the Executive in the five years preceding such termination; (ii) continuation of the Executive's car usage or allowance payments for a period of six months after separation from service; (iii) an allowance of $6,000 for outplacement services; and (iv) acceleration of vesting of all stock options, equity grants and other incentive compensation awards (excluding any cash bonus attributable to performance in fiscal years that are not complete as of the Executive's last date of employment) from us to Executive as follows: (a) grants vesting over time shall be fully vested on separation from service, (b) grants vesting based on performance shall be accelerated and fully vested at target performance levels on separation from service without regard to whether the performance targets are projected to be met for such performance period, and (c) the time to exercise nonqualified stock options shall be extended such that Executive's right to exercise such stock options shall continue until the first anniversary of the Executive's last date of employment, but in no event later than the expiration date of the options.

In the event of the termination of the Executive's employment by the Company without cause or by the Executive for good reason, within 90 days prior to or 12 months after a "change in control" (as defined in the agreement), then the Executive shall be entitled to either (i) the severance payment described in the applicable paragraph above except that incentive compensation awards shall, to the extent unvested, immediately vest at maximum performance levels or (ii) an alternative amount calculated in accordance with Internal Revenue Code Section 280G.

#### POTENTIAL PAYMENT UPON TERMINATION OF EMPLOYMENT OR CHANGE IN CONTROL
The following tables reflect the breakdown of potential payments and benefits upon termination or a change in control required under the Named Executive Officers' current employment arrangements. The tables therefore assume that the terms of employment to which each Named Executive Officer is currently subject had been in effect on June 30, 2025, and that employment terminated on such date. The tables also assume that the price of our Common Stock, on which certain calculations in the following tables are made, was the closing price of our Common Stock on June 30, 2025, the last business day of the fiscal year ($224.86).

Please also note that regardless of the manner in which a Named Executive Officer's employment terminates, the officer is entitled to receive amounts earned during the term of employment. These amounts, which are not included in the following tables, include: (i) regular salary accrued as of the final date of employment; (ii) bonuses accrued as of the final date of employment; (iii) vacation and paid time off accrued as of the final date of employment; (iv) business expense reimbursements not yet paid as of the final date of employment; and (v) amounts contributed under our qualified and nonqualified deferred compensation plans.

All disclosed amounts in the following tables are estimates only and do not necessarily reflect the actual amounts that would be paid to the Named Executive Officers, which amounts would only be known at the time that they become eligible for such payments.

54 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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EXECUTIVE COMPENSATION

Subject to the foregoing, upon a change in control, Mr. Chopra, Mr. Mansouri, and Mr. Morben would be entitled to the accelerated vesting of their stock awards valued at $45,059,920, $2,457,045, and $3,374,474, respectively. In addition, upon a termination of employment, Mr. Chopra would become entitled to certain payments under the Defined Benefit Plan in accordance with the terms of such plan. Additional information about this plan is summarized above under the heading "Pension Benefits."

Also subject to the foregoing, the following table reflects the breakdown of potential payments and benefits upon termination or a change in control required under the respective employment agreements of Messrs. Mehra, Edrick and Sze.

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| NAME AND <br> PRINCIPAL POSITION  | REASON FOR <br> TERMINATION  | SALARY <br> ($)  | BONUS <br> ($)  | ACCELERATED <br> VESTING OF <br> STOCK <br> AWARDS <br> ($)  | CAR <br> ALLOWANCE <br> ($)  | OUTPLACEMENT <br> SERVICES <br> ($)  | TOTAL <br> ($)  |
| Ajay Mehra <br> President and Chief <br> Executive Officer  | Good Reason or <br> Without Cause  | 1500000 | 6566666 | 9060734 | 6000 | 6000 | 17139400 |
| Ajay Mehra <br> President and Chief <br> Executive Officer  | Good Reason or <br> Without Cause in <br> Connection with a <br> Change in Control<sup>(1)</sup> | 1500000 | 6566666 | 17276219 | 6000 | 6000 | 25354885 |
| Alan Edrick <br> Executive Vice President <br> and Chief Financial <br> Officer  | Good Reason or <br> Without Cause  | 1069388 | 1557814 | 10622611 | 6000 | 6000 | 13261813 |
| Alan Edrick <br> Executive Vice President <br> and Chief Financial <br> Officer  | Good Reason or <br> Without Cause in <br> Connection with a <br> Change in Control<sup>(1)</sup> | 1069388 | 1557814 | 22585388 | 6000 | 6000 | 25224590 |
| Victor S. Sze <br> Executive Vice <br> President, General <br> Counsel and Secretary  | Good Reason or <br> Without Cause  | 922984 | 1210589 | 8413137 | 6000 | 6000 | 10558710 |
| Victor S. Sze <br> Executive Vice <br> President, General <br> Counsel and Secretary  | Good Reason or <br> Without Cause in <br> Connection with a <br> Change in Control<sup>(1)</sup> | 922984 | 1210589 | 17707725 | 6000 | 6000 | 19853298 |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

Under the terms of their employment agreements, in lieu of the total compensation to which the Named Executive Officer would be entitled in the event that he terminates his employment for good reason or the Company terminates his employment without cause following a change in control, the Named Executive Officer may instead elect to receive an alternate payment amount based on a calculation method described in his employment agreement.

---

| | | |
|:---|:---|:---|
| **COMPENSATION COMMITTEE REPORT**  | **COMPENSATION COMMITTEE REPORT**  | **COMPENSATION COMMITTEE REPORT**  |
| The Compensation Committee has reviewed and discussed with management the Compensation Discussion and Analysis provisions to be included in this Proxy Statement. Based on the reviews and discussions referred to above, the Compensation Committee recommends to the Board that the Compensation Discussion and Analysis referred to above be included in this Proxy Statement.  | The Compensation Committee has reviewed and discussed with management the Compensation Discussion and Analysis provisions to be included in this Proxy Statement. Based on the reviews and discussions referred to above, the Compensation Committee recommends to the Board that the Compensation Discussion and Analysis referred to above be included in this Proxy Statement.  | The Compensation Committee has reviewed and discussed with management the Compensation Discussion and Analysis provisions to be included in this Proxy Statement. Based on the reviews and discussions referred to above, the Compensation Committee recommends to the Board that the Compensation Discussion and Analysis referred to above be included in this Proxy Statement.  |
| **COMPENSATION COMMITTEE**  | **COMPENSATION COMMITTEE**  | **COMPENSATION COMMITTEE**  |
| Meyer Luskin, Chair  | William F. Ballhaus  | James Hawkins  |

---

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Security Ownership of Certain Beneficial Owners and Management

## Security Ownership of Certain Beneficial Owners and Management

### MORE THAN 5% STOCKHOLDERS
The following table sets forth the amount of shares of the Company beneficially owned as of October 15, 2025, unless otherwise indicated, by each person known by us to own beneficially more than 5% of the outstanding shares of our outstanding Common Stock. As of October 15, 2025, 16,977,595 shares of our Common Stock were issued and outstanding.

---

| | | |
|:---|:---|:---|
| NAME AND ADDRESS OF BENEFICIAL OWNER  | AMOUNT AND NATURE OF <br> BENEFICIAL OWNERSHIP OF <br> COMMON STOCK<sup>(1)</sup> <br> (#)  | PERCENT OF CLASS <br> OF COMMON <br> STOCK  |
|  BlackRock, Inc.<sup>(2)</sup> <br> 50 Hudson Yards <br> New York, NY 10001  | 2389828 | 14.1% |
|  FMR LLC<sup>(3)</sup> <br> 245 Summer Street <br> Boston, MA 02210  | 1235311 | 7.3% |
|  Janus Henderson Group Plc<sup>(4)</sup> <br> 201 Bishopsgate <br> EC2M 3AE, United Kingdom  | 1052726 | 6.2% |

---

&nbsp;&nbsp;&nbsp;&nbsp; (1)

Beneficial ownership is determined in accordance with the rules of the SEC and generally includes voting or investment power with respect to securities. Shares of Common Stock which are purchasable under options which are currently exercisable, or which will become exercisable no later than 60 days after October 15, 2025, are deemed outstanding for computing the percentage of the person holding such options but are not deemed outstanding for computing the percentage of any other person. Except as indicated by footnote and subject to community property laws where applicable, the persons named in the table have sole voting and investment power with respect to all shares of Common Stock shown as beneficially owned by them.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Represents the number of shares of Common Stock beneficially owned as of June 30, 2025, as reported on Schedule 13G/A filed on July 18, 2025 with the SEC by BlackRock, Inc. Such report indicates sole voting power over 2,360,735 shares, sole dispositive power over 2,389,838 shares, and shared voting power and shared dispositive power over 0 shares.

&nbsp;&nbsp;&nbsp;&nbsp; (3)

Represents the number of shares of Common Stock beneficially owned as of March 31, 2025, as reported on Schedule 13G/A filed on May 12, 2025 with the SEC by FMR LLC. Such report indicates sole voting power over 1,234,067 shares, sole dispositive power over 1,235,311 shares, and shared voting and shared dispositive power over 0 shares. Such report further indicates that Abigail P. Johnson has sole dispositive power over 1,235,311 shares.

&nbsp;&nbsp;&nbsp;&nbsp; (4)

Represents the number of shares of Common Stock beneficially owned as of June 30, 2025, as reported on Schedule 13G/A filed on August 14, 2025 with the SEC by Janus Henderson Group Plc. Such report indicates sole voting power and sole dispositive power over 0 shares, and shared voting power and shared dispositive power over 1,052,726 shares. Such report further indicates that Janus Henderson Investors U.S. LLC may be deemed the beneficial owner of 976,812 shares.

56 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Security Ownership of Certain Beneficial Owners and Management

### DIRECTORS AND EXECUTIVE OFFICERS
The following table sets forth the amount of shares of the Company beneficially owned as of October 15, 2025, unless otherwise indicated, by each of our directors and director nominees, each Named Executive Officer, and all directors, director nominees, and executive officers as a group:

---

| | | |
|:---|:---|:---|
| NAME OF BENEFICIAL OWNER<sup>(1)</sup>  | AMOUNT AND NATURE OF <br> BENEFICIAL OWNERSHIP OF <br> COMMON STOCK<sup>(2)</sup> <br> (#)  | PERCENT OF CLASS <br> OF COMMON STOCK  |
| Ajay Mehra<sup>(3)</sup> | 57673 | \* |
| Deepak Chopra | 277912 | 1.6% |
| Alan Edrick | 260427 | 1.5% |
| Victor S. Sze<sup>(4)</sup>  | 64738 | \* |
| Manoocher Mansouri | 73693 | \* |
| Paul Morben | 3379 | \* |
| William F. Ballhaus<sup>(5)</sup>  | 25600 | \* |
| Kelli Bernard | 7436 | \* |
| Gerald Chizever<sup>(6)</sup>  | 6818 | \* |
| James B. Hawkins | 3061 | \* |
| Meyer Luskin<sup>(7)</sup>  | 13169 | \* |
| All directors and executive officers as a group <br> (14 persons)<sup>(8)</sup> | 729909 | 4.3% |

---

\*

Represents less than 1.0% of the outstanding shares of our Common Stock

&nbsp;&nbsp;&nbsp;&nbsp; (1)

The address of each stockholder is c/o OSI Systems, Inc., 12525 Chadron Avenue, Hawthorne, CA 90250.

&nbsp;&nbsp;&nbsp;&nbsp; (2)

Beneficial ownership is determined in accordance with the rules of the SEC and generally includes voting or investment power with respect to securities. Shares of Common Stock which are purchasable under options which are currently exercisable, or which will become exercisable no later than 60 days after October 15, 2025, are deemed outstanding for computing the percentage of the person holding such options but are not deemed outstanding for computing the percentage of any other person. Except as indicated by footnote and subject to community property laws where applicable, the persons named in the table have sole voting and investment power with respect to all shares of Common Stock shown as beneficially owned by them. No shares are pledged as security.

&nbsp;&nbsp;&nbsp;&nbsp; (3)

Includes 6,683 shares owned by the Mehra Family Trust dated July 12, 2008.

&nbsp;&nbsp;&nbsp;&nbsp; (4)

Includes 5,639 shares held by the Victor So-Mein Sze & Angela Hsin-Chi Hsu Co-ttee Sze Trust U/T/A DTD 11/25/2014.

&nbsp;&nbsp;&nbsp;&nbsp; (5)

Includes 25,600 shares held in the Ballhaus Trust U/A 01/25/02 Dr. William Ballhaus Jr. and Jane K. Ballhaus Trustees.

&nbsp;&nbsp;&nbsp;&nbsp; (6)

Includes 5,873 shares held by The G & C Chizever Family Trust.

&nbsp;&nbsp;&nbsp;&nbsp; (7)

Includes 11,684 shares held by The Meyer and Doreen Luskin Family Trust.

&nbsp;&nbsp;&nbsp;&nbsp; (8)

Effective June 30, 2025, Mr. Mansouri retired from his role as President of the Company's Optoelectronics and Manufacturing division and therefore, as of the date of this table, is not included as an executive officer.

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Security Ownership of Certain Beneficial Owners and Management

### SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE
Section 16(a) of the Exchange Act requires the executive officers and directors and persons who beneficially own more than 10% of a class of securities registered under Section 12(b) the Exchange Act to file initial reports of ownership and reports of changes in ownership with the SEC. Such officers, directors and stockholders are required by SEC regulations to furnish us with copies of all such reports that they file. None of our directors or executive officers owns more than 10% of our securities. Based solely upon our review of such forms furnished to us during the fiscal year ended June 30, 2025, and written representations from certain reporting persons, we believe that our executive officers and directors have complied with the requirements imposed on them by Section 16(a) of the Exchange Act, with the exception of two late Form 4 filing by Mr. Ballhaus and one late Form 4 filing by Mr. Hawkins.

### EQUITY COMPENSATION PLAN INFORMATION
The following table provides information concerning our equity compensation plans as of June 30, 2025.

---

| | | | |
|:---|:---|:---|:---|
| | (A)  | (B)  | (C)  |
| PLAN CATEGORY  | NUMBER OF SECURITIES TO <br> BE ISSUED UPON EXERCISE <br> OF OUTSTANDING <br> OPTIONS, WARRANTS <br> AND RIGHTS <br> (#)  | WEIGHTED-AVERAGE <br> EXERCISE PRICE OF <br> OUTSTANDING <br> OPTIONS, WARRANTS <br> AND RIGHTS <br> ($)  | NUMBER OF SECURITIES <br> REMAINING FOR FUTURE <br> ISSUANCE UNDER EQUITY <br> COMPENSATION PLANS <br> (EXCLUDING SECURITIES <br> REFLECTED IN COLUMN (A)) <br> (#)  |
| Equity compensation plans approved by security holders | 60253 | 121.41 | 1984358(1)(2) |
| Equity compensation plans not approved by security holders |  | N/A |  |
| Total | 60253 | 121.41 | 1984358 |

---

(1) These shares are available for future issuance under our Amended and Restated 2012 Incentive Award Plan, which was approved by our shareholders on December 10, 2020 and amended on December 12, 2023.

(2) Awards of RSUs and other awards that convey the full value of the shares subject to the award are counted as 1.87 shares for every one award granted.

58 \| OSI SYSTEMS, INC. 2025 Proxy Statement

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Information about the Annual Meeting and Voting

## Information about the Annual Meeting and Voting

---

| | | | |
|:---|:---|:---|:---|
| ![[MISSING IMAGE: ic_datetime-pn.jpg]](ic_datetime-pn.jpg) DATE AND TIME  | ![[MISSING IMAGE: ic_location-pn.jpg]](ic_location-pn.jpg) LOCATION  | ![[MISSING IMAGE: ic_recorddate-pn.jpg]](ic_recorddate-pn.jpg) RECORD DATE  | ![[MISSING IMAGE: ic_distribusion-pn.jpg]](ic_distribusion-pn.jpg) DATE OF DISTRIBUTION  |
| Thursday, December 11, 2025 10:00 a.m., Pacific Time  | *At the Company's offices—* <br>12525 Chadron Avenue<br>Hawthorne, California  | All holders of OSI Systems, Inc. common stock as of the close of business on October 15, 2025 are entitled to vote at the Annual Meeting  | We anticipate that the Notice of Internet Availability of Proxy Materials will be mailed or made available electronically on or about October 22, 2025.  |

---

### GENERAL INFORMATION
This Proxy Statement is being furnished in connection with the solicitation of proxies by the Company's Board for use at our Annual Meeting, and at any adjournment thereof.

We are making our proxy materials, which include the Notice of Annual Meeting of Stockholders, Proxy Statement, Proxy Card and our most recent Annual Report on Form 10-K ("Proxy Materials"), available to our stockholders via the Internet, although registered stockholders and those stockholders who have previously requested to receive printed copies instead will receive their Proxy Materials in the mail.

#### NOTICE OF INTERNET AVAILABILITY OF PROXY MATERIALS
Stockholders of record as of the close of business on October 15, 2025 will receive a Notice of Internet Availability of Proxy Materials. The Notice of Internet Availability of Proxy Materials contains instructions about how to access the Proxy Materials and vote via the Internet without attending the Annual Meeting. If you receive a Notice of Internet Availability of Proxy Materials but would instead prefer to receive a printed copy of the Proxy Materials rather than downloading them from the Internet, you may do so by following the instructions for requesting such materials included in the Notice of Internet Availability of Proxy Materials.

#### VOTING PROCEDURES

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| | | | | |
|:---|:---|:---|:---|:---|
| **YOUR VOTE IS VERY IMPORTANT.** <br> Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  | **YOUR VOTE IS VERY IMPORTANT.** <br> Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  | **YOUR VOTE IS VERY IMPORTANT.** <br> Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  | **YOUR VOTE IS VERY IMPORTANT.** <br> Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  | **YOUR VOTE IS VERY IMPORTANT.** <br> Whether or not you plan to attend the Annual Meeting, please vote as soon as possible. Your vote will ensure your representation at the Annual Meeting if you cannot attend in person. If you later desire to revoke your proxy for any reason, you may do so in the manner described in the attached Proxy Statement. Please refer to the proxy materials or the information forwarded by your bank, broker or other holder of record to see which voting methods are available to you.  |
| ![[MISSING IMAGE: ic_internet-pn.jpg]](ic_internet-pn.jpg)  | ![[MISSING IMAGE: ic_mobile-pn.jpg]](ic_mobile-pn.jpg)  | ![[MISSING IMAGE: ic_mail-pn.jpg]](ic_mail-pn.jpg)  | ![[MISSING IMAGE: ic_scan-pn.jpg]](ic_scan-pn.jpg)  | ![[MISSING IMAGE: ic_meeting-pn.jpg]](ic_meeting-pn.jpg)  |
| INTERNET  | TELEPHONE  | MAIL  | MOBILE DEVICE  | AT THE MEETING  |
| Place your vote via <br> Internet, 24/7, at <br> **www.proxyvote.com**  | Call toll-free, 24/7, <br> (if US or Canada) <br> 1 (800) 690-6903  | Sign, date and return <br> your proxy card or voting <br> instruction form by mail  | Scan the QR code <br> ![[MISSING IMAGE: ic_qrcode-bw.jpg]](ic_qrcode-bw.jpg)  | Attend the <br> meeting and cast <br> your ballot  |

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OSI SYSTEMS, INC. 2025 Proxy Statement \| 59

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Information about the Annual Meeting and Voting

If you are a stockholder that receives a printed copy of the Proxy Materials by mail, you may view the Proxy Materials on the Internet at **http://www.proxyvote.com**. However, in order to direct your vote without attending the Annual Meeting you must complete and mail the Proxy Card or voting instruction card enclosed (postage pre-paid return envelope also enclosed) or, if indicated on the Proxy Card that you receive, by telephone or Internet voting. Please refer to the Proxy Card that you receive for instructions.

When a proxy is properly submitted, the shares it represents will be voted in accordance with any directions noted thereon. Any stockholder giving a proxy has the power to revoke it at any time before it is voted by written notice to the Secretary of the Company by issuance of a subsequent proxy as more fully described on the Proxy Card. In addition, a stockholder attending the Annual Meeting may revoke his or her proxy and vote in person if he or she desires to do so, but attendance at the Annual Meeting will not of itself revoke the proxy.

A Proxy Card, when properly submitted via the Internet, telephone or mail, also confers discretionary authority with respect to amendments or variations to the matters identified in the Notice of Annual Meeting of Stockholders and with respect to other matters which may be properly brought before the Annual Meeting.

#### RECORD DATE, SHARE OWNERSHIP AND QUORUM
At the close of business on October 15, 2025, the record date for determining stockholders entitled to notice of and to vote at the Annual Meeting, we had issued and outstanding 16,977,595 shares of common stock, $0.001 par value ("Common Stock"). A majority of the shares issued and outstanding on the record date, present in person at the Annual Meeting or represented at the Annual Meeting by proxy, will constitute a quorum for the transaction of business. Shares that are voted with respect to any proposal are treated as being present at the Annual Meeting for purposes of establishing a quorum. Each share of Common Stock entitles the holder of record thereof to one vote on any matter coming before the Annual Meeting.

#### ABSTENTIONS AND BROKER NON-VOTES
Abstentions and broker non-votes represented by submitted proxies will be included in the calculation of the number of the shares present at the Annual Meeting for the purposes of determining a quorum. "Broker non-votes" means shares held of record by a broker that are not voted because the broker has not received voting instructions from the beneficial owner of the shares and either lacks or declines to exercise the authority to vote the shares in its discretion.

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Information about the Annual Meeting and Voting

#### PROPOSALS, BOARD VOTING RECOMMENDATIONS AND VOTES REQUIRED

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|:---|:---|:---|:---|:---|:---|:---|
| PROPOSAL  | PROPOSAL  | BOARD VOTING <br> RECOMMENDATION  | BOARD VOTING <br> RECOMMENDATION  | PAGE <br> REFERENCE  | EFFECT OF BROKER <br> NON-VOTES AND <br> ABSTENTIONS  | VOTES REQUIRED <br> FOR APPROVAL  |
| **1**  | Election of six directors  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR** all <br> nominees  | 5  | No effect  | Plurality of <br> votes cast  |
| **2**  | Ratification of the appointment of Grant Thornton LLP as our independent registered public accounting firm for the fiscal year ending June 30, 2026  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR**  | 20  | No effect  | Majority of <br> votes cast  |
| **3**  | Advisory vote to approve the compensation of our named executive officers for the fiscal year ended June 30, 2025  | ![[MISSING IMAGE: ic_boxtick-pn.jpg]](ic_boxtick-pn.jpg)  | **FOR**  | 23  | No effect  | Majority of <br> votes cast  |

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At the time of printing this Proxy Statement, our management was not aware of any other matters to be presented for action at the Annual Meeting. If, however, other matters which are not now known to management should properly come before the Annual Meeting, the proxies hereby solicited will be exercised on such matters in accordance with the best judgment of the proxy holders.

#### SOLICITATION OF PROXIES
We will pay the expenses of soliciting proxies for the Annual Meeting, including the cost of preparing, assembling, posting on the Internet and mailing the Notice of Internet Availability of Proxy Materials and the Proxy Materials. Proxies may be solicited personally, by mail, by e-mail, over the Internet, or by telephone, by directors, officers and regular employees of the Company who will not be additionally compensated therefore.

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Additional Information

## Additional Information

### AVAILABILITY OF ANNUAL REPORT ON FORM 10-K

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|:---|:---|:---|
| ![[MISSING IMAGE: img_cov-bw.jpg]](img_cov-bw.jpg)  | A copy of our Annual Report on Form 10-K as filed with the SEC is available, without charge, under the Investor Relations section of our website or by written request addressed to:  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_ethics-pn.gif]](ic_ethics-pn.gif) <br> https://investors.osi-systems.com/  |
| ![[MISSING IMAGE: img_cov-bw.jpg]](img_cov-bw.jpg)  | A copy of our Annual Report on Form 10-K as filed with the SEC is available, without charge, under the Investor Relations section of our website or by written request addressed to:  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_mail-pn.gif]](ic_mail-pn.gif) <br> OSI Systems, Inc. <br> Attention: Corporate Secretary <br> 12525 Chadron Avenue <br> Hawthorne, California 90250  |

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### HOUSEHOLDING OF PROXY MATERIALS
In certain cases only one Annual Report and Proxy Statement or Notice of Internet Availability of Proxy Materials may be delivered to multiple stockholders sharing an address unless we have received contrary instructions from one or more of the stockholders at that address. We undertake to deliver promptly upon written or oral request a separate copy of the Annual Report, Proxy Statement and/or Notice of Internet Availability of Proxy Materials, as applicable, to a stockholder at a shared address to which a single copy of such documents was delivered. Such request should also be directed to our Secretary at the address indicated in the previous paragraph or by telephone at (310) 978-0516. In addition, stockholders sharing an address can request delivery of a single copy of Annual Reports, Proxy Statements or Notices of Internet Availability of Proxy Materials if they are receiving multiple copies of Annual Reports, Proxy Statements or Notices of Internet Availability of Proxy Materials by directing such request to the same mailing address.

### STOCKHOLDER PROPOSALS
If a stockholder desires to have a proposal included in our proxy statement and form of proxy used in connection with our next annual meeting of stockholders, the proposal must be delivered in writing to our Secretary and comply with the requirements of Rule 14a-8 promulgated under the Exchange Act. Under such rule, the deadline for delivering any such proposal to us would be June 24, 2026, which is 120 days prior to the one-year anniversary of the date of this Proxy Statement.

If a stockholder desires to solicit proxies in support of director nominees other than the Company's nominees in connection with our 2026 annual meeting of stockholders, the stockholder must deliver notice in writing to our Secretary and comply with the requirements of Rule 14a-19 promulgated under the Exchange Act. Under such rule and in accordance with our Bylaws, the deadline for delivering any such proposal to us would be September 12, 2026; provided, however, that if the date of the next annual meeting of stockholders has changed by more than 30 calendar days from December 11, 2026, notice by the stockholder to be timely must be provided by the later of 90 calendar days prior to the date of the annual meeting or the 10th calendar day following the day on which public disclosure of the date of such annual meeting was first made.

Our Bylaws provide that if a stockholder, rather than including a proposal in our proxy statement as discussed above, commences his or her own proxy solicitation for the next annual meeting of stockholders or seeks to nominate a candidate for election or propose business for consideration at such meeting, the stockholder must deliver a notice of such proposal to us no more than 120 days and no less than 90 days prior to December 11, 2026, provided, however, that if the date of the next annual meeting of stockholders is more than 30 days before or more than 60 days after December 11, 2026, notice by the stockholder to be timely must be so delivered, or mailed and received, not later than the 90th day prior to the date of such

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Additional Information

annual meeting or, if later, the 10th day following the day on which public disclosure of the date of such annual meeting was first made.

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| | |
|:---|:---|
| The notice must comply with the requirements set forth in our Bylaws and should be directed to the Company:  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![[MISSING IMAGE: ic_mail-pn.gif]](ic_mail-pn.gif) <br> OSI Systems, Inc. <br> Attention: Corporate Secretary <br> 12525 Chadron Avenue <br> Hawthorne, California 90250  |

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### INCORPORATION BY REFERENCE
Notwithstanding anything to the contrary set forth in any of the previous filings made by us under the Securities Act of 1933, as amended, or the Exchange Act, which might incorporate future filings made by us under those statutes, the Compensation Committee Report and the Report of the Audit Committee will not be incorporated by reference into any of those prior filings, nor will any such report be incorporated by reference into any future filings made by us under those statutes, except to the extent we specifically incorporate such report by reference therein. In addition, information on our website, other than this Proxy Statement and the enclosed Proxy, is not part of the proxy soliciting material and is not incorporated herein by reference.

### OTHER BUSINESS
We do not know of any other business to be presented at the Annual Meeting and do not intend to bring any other matters before such meeting. If any other matters properly do come before the Annual Meeting, however, the persons named in the accompanying Proxy are empowered, in the absence of contrary instructions, to vote according to their best judgment.

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| **IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON DECEMBER 12, 2025**  |
| This Proxy Notice, the accompanying Proxy Statement and Annual Report on Form 10-K for the fiscal year ended June 30, 2025 are available at **http://www.proxyvote.com**.  |

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THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLY TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date SCAN TO VIEW MATERIALS & VOTE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0000683004_1 R2.09.05.010 OSI SYSTEMS, INC. C/O BROADRIDGE CORPORATE ISSUER SOLUTIONS P.O. BOX 1342 BRENTWOOD, NY 11717 VOTE BY INTERNET - www.proxyvote.com or scan the QR Barcode above Use the Internet to transmit your voting instructions and for electronic delivery of information. Vote by 11:59 P.M. ET on 12/10/2025. Have your proxy card in hand when you access the website and follow the instructions to obtain your records and to create an electronic voting instruction form. ELECTRONIC DELIVERY OF FUTURE PROXY MATERIALS If you would like to reduce the costs incurred by our company in mailing proxy materials, you can consent to receiving all future proxy statements, proxy cards and annual reports electronically via e-mail or the Internet. To sign up for electronic delivery, please follow the instructions above to vote using the Internet and, when prompted, indicate that you agree to receive or access proxy materials electronically in future years. VOTE BY PHONE - 1-800-690-6903 Use any touch-tone telephone to transmit your voting instructions. Vote by 11:59 P.M. ET on 12/10/2025. Have your proxy card in hand when you call and then follow the instructions. VOTE BY MAIL Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. The Board of Directors recommends you vote FOR the following: 1. Election of Directors Nominees For Against Abstain 1a. Deepak Chopra 1b. Ajay Mehra 1c. William F. Ballhaus 1d. Kelli Bernard 1e. Gerald Chizever 1f. James B. Hawkins The Board of Directors recommends you vote FOR proposals 2 and 3. For Against Abstain 2. Ratification of the appointment of Grant Thornton LLP as the Company's independent registered public accounting firm for the fiscal year ending June 30, 2026. 3. Advisory vote to approve the Company's named executive officer compensation for the fiscal year ended June 30, 2025. NOTE: Such other business as may properly come before the meeting or any adjournment thereof. Please sign exactly as your name(s) appear(s) hereon. When signing as attorney, executor, administrator, or other fiduciary, please give full title as such. Joint owners should each sign personally. All holders must sign. If a corporation or partnership, please sign in full corporate or partnership name by authorized officer.

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0000683004_2 R2.09.05.010 Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting: The Notice and Proxy Statement and 10K Wrap are available at www.proxyvote.com OSI SYSTEMS, INC. Annual Meeting of Stockholders December 11, 2025 10:00 A.M. This proxy is solicited by the Board of Directors The undersigned appoints each of Ajay Mehra, Alan Edrick, and Victor Sze with power of substitution, attorneys and proxies, to vote all shares votable by the undersigned at the stockholders' annual meeting of OSI Systems, Inc., a Delaware corporation and at any adjournments. The meeting will be held in Hawthorne, California on December 11, 2025 at 10:00 A.M., Pacific Time. My voting instructions are on the reverse side of this proxy. I revoke any proxy previously given. This proxy, when properly executed, will be voted in the manner directed. If no direction is made, the proxy will be voted by the proxies named "FOR" proposals 1, 2, and 3 and in their discretion on any other matters properly brought to a stockholder vote at the meeting. If the undersigned holds OSI Systems, Inc. shares in the OSI Systems, Inc. 401(k) Plan, this proxy constitutes voting instructions for any shares so held. Continued and to be signed on reverse side

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