# EDGAR Filing Document

**Accession Number:** 0001568651
**File Stem:** 0001140361-26-016124
**Filing Date:** 2026-4
**Character Count:** 2312
**Document Hash:** 13f6f368d47c1cb6162ed990a034f140
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-016124.hdr.sgml**: 20260422

**ACCESSION NUMBER**: 0001140361-26-016124

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260422

**DATE AS OF CHANGE**: 20260422

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Oscar Health, Inc.
- **CENTRAL INDEX KEY:** 0001568651
- **STANDARD INDUSTRIAL CLASSIFICATION:** HOSPITAL & MEDICAL SERVICE PLANS [6324]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40154
- **FILM NUMBER:** 26884081

**BUSINESS ADDRESS:**
- **STREET 1:** 75 VARICK STREET
- **STREET 2:** 5TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013
- **BUSINESS PHONE:** (646) 403-3677

**MAIL ADDRESS:**
- **STREET 1:** 75 VARICK STREET
- **STREET 2:** 5TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10013

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Mulberry Health Inc.
- **DATE OF NAME CHANGE:** 20130204

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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, DC 20549

#### <br>

### SCHEDULE 14A

### <br>

#### (Rule 14a-101)

#### INFORMATION REQUIRED IN PROXY STATEMENT

#### SCHEDULE 14A INFORMATION

#### Proxy Statement Pursuant to Section 14(a) of the

#### Securities Exchange Act of 1934

#### (Amendment No.)

#### <br>
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

#### &nbsp;&nbsp;&nbsp;&nbsp; <br>

## Oscar Health, Inc.

#### (Name of Registrant as Specified in its Charter)

#### (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

#### <br>
Payment of Filing Fee (Check all boxes that apply):

☒ No fee required. <br> ☐ Fee paid previously with preliminary materials. <br> ☐ 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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