OSCR Oscar Health Inc

The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

 Names of Reporting Persons

 Marc Stad

 Check the Appropriate Box if a Member of a Group (See Instructions)

 (a) ☐  (b) ☐

 SEC Use Only

 Citizenship or Place of Organization

 United States

Number of

Shares

Beneficially 

Owned by

Each

Reporting

Person

With

 Sole Voting Power

 0

 Shared Voting Power

 22,224,667 ⁽¹⁾

 Sole Dispositive Power

 0

 Shared Dispositive Power

 22,224,667 ⁽¹⁾

 Aggregate Amount Beneficially Owned by Each Reporting Person

 22,224,667 ⁽¹⁾

 Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)

 ☐

 Percent of Class Represented by Amount in Row (9)

 9.9% ⁽²⁾

 Type of Reporting Person (See Instructions)

 IN, HC

Includes (i) 9,487,894 shares of Class A Common Stock of Oscar Health, Inc. (the “Issuer”) and (ii) 12,736,773 shares of Class A Common Stock issuable upon the conversion of the Issuer’s 7.25% Convertible Senior Notes due 2031 (the “2031 Convertible Senior Notes”) beneficially owned by the Reporting Person. Excludes 361,459 shares of Class A Common Stock into which the 2031 Convertible Notes may not currently be converted due to the Beneficial Ownership Limitation (as defined below). The 2031 Convertible Notes may not be converted to the extent that such conversion would result in the holder, or a person or group that includes such holder, beneficially owning in excess of 9.9% of the then outstanding shares of Class A Common Stock (the “Beneficial Ownership Limitation”).

Based on (i) 211,754,816 shares of Class A Common Stock outstanding as of October 31, 2024, as reported in the Issuer’s Quarterly Report on Form 10-Q filed with the SEC on November 7, 2024 and (ii) 12,736,773 shares of Class A Common Stock issuable upon the conversion of 2031 Convertible Senior Notes.

 Names of Reporting Persons

 Dragoneer Investment Group, LLC

 Check the Appropriate Box if a Member of a Group (See Instructions)

 (a) ☐  (b) ☐

 SEC Use Only

 Citizenship or Place of Organization

 Delaware

Number of

Shares

Beneficially 

Owned by

Each

Reporting

Person

With

 Sole Voting Power

 0

 Shared Voting Power

 22,224,667 ⁽¹⁾

 Sole Dispositive Power

 0

 Shared Dispositive Power

 22,224,667 ⁽¹⁾

 Aggregate Amount Beneficially Owned by Each Reporting Person

 22,224,667 ⁽¹⁾

 Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)

 ☐

 Percent of Class Represented by Amount in Row (9)

 9.9% ⁽²⁾

 Type of Reporting Person (See Instructions)

 IA, OO

Includes (i) 9,487,894 shares of Class A Common Stock of Oscar Health, Inc. (the “Issuer”) and (ii) 12,736,773 shares of Class A Common Stock issuable upon the conversion of the 2031 Convertible Senior Notes beneficially owned by the Reporting Person. Excludes 361,459 shares of Class A Common Stock into which the 2031 Convertible Notes may not currently be converted due to the Beneficial Ownership Limitation.

Based on (i) 211,754,816 shares of Class A Common Stock outstanding as of October 31, 2024, as reported in the Issuer’s Quarterly Report on Form 10-Q filed with the SEC on November 7, 2024 and (ii) 12,736,773 shares of Class A Common Stock issuable upon the conversion of 2031 Convertible Senior Notes.

Ownership