# EDGAR Filing Document

**Accession Number:** 0001484612
**File Stem:** 0001193125-26-177287
**Filing Date:** 2026-4
**Character Count:** 4500
**Document Hash:** c3d65e3d751cece75aee9fd6901254c9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-177287.hdr.sgml**: 20260424

**ACCESSION NUMBER**: 0001193125-26-177287

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20260424

**DATE AS OF CHANGE**: 20260424

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Outset Medical, Inc.
- **CENTRAL INDEX KEY:** 0001484612
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS [3845]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 200514392
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39513
- **FILM NUMBER:** 26894136

**BUSINESS ADDRESS:**
- **STREET 1:** 3052 ORCHARD DRIVE
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95134
- **BUSINESS PHONE:** 669-231-8200

**MAIL ADDRESS:**
- **STREET 1:** 3052 ORCHARD DRIVE
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95134

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Home Dialysis Plus, Ltd.
- **DATE OF NAME CHANGE:** 20100219

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, DC 20549**

**SCHEDULE 14A**

**(Rule 14a-101)**

**SCHEDULE 14A INFORMATION**

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

(Amendment No. ____)

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☒ 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

![img172766533_0.gif](img172766533_0.gif)

Outset Medical, 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 14a-6(i)(1) and 0-11.

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![img172766533_1.jpg](img172766533_1.jpg)

Your Vote Counts! OUTSET MEDICAL, INC. 2026 Annual Meeting Vote by June 3, 2026 11:59 PM ET OUTSET MEDICAL, INC. 3052 ORCHARD DR. SAN JOSE, CA 95134 V96453-P52207 You invested in OUTSET MEDICAL, INC. and it's time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the stockholder meeting to be held on June 4, 2026. Get informed before you vote View the Notice of the Annual Meeting, Proxy Statement and Annual Report on Form 10-K online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 21, 2026. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. For complete information and to vote, visit www.ProxyVote.com Control # Smartphone users Point your camera here and vote without entering a control number Vote Virtually During the Meeting\* June 4, 2026 1:30 p.m. Pacific Time Virtually at: www.virtualshareholdermeeting.com/OM2026 \*Please check the meeting materials for any special requirements on how to access the virtual meeting.

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![img172766533_2.jpg](img172766533_2.jpg)

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Board Recommends Voting Items 1. Election of Class III Directors Nominees: 1a. Brent D. Lang For 1b. Karen Prange For 2. To approve, on a non-binding basis, the 2025 compensation of our named executive officers. For 3. To ratify the appointment of KPMG LLP as our independent registered public accounting firm for fiscal year 2026. For NOTE: In their discretion, the proxy holders are authorized to vote upon such other business as may properly come before the meeting or any adjournment or postponement thereof. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click "Delivery Settings". V96454-P52207

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