Mario Schlosser - 01 Jul 2026 Form 4 Insider Report for Oscar Health, Inc. (OSCR)

Reporting relationship: Director
Issuer ticker: OSCR
Reported as of: 01 Jul 2026
Net transaction value: -$1,484,014
SEC form: 4
Accepted by SEC: 06 Jul 2026, 16:11:00 UTC
Prior SEC filing: 25 Jun 2026
Next SEC filing: 14 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/Melissa Curtin, Attorney-in-Fact

Key filing fact

Mario Schlosser filed Form 4 for Oscar Health, Inc. (OSCR) on 06 Jul 2026.

Key facts

This page summarizes Mario Schlosser's Form 4 filing for Oscar Health, Inc. (OSCR).
5 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 06 Jul 2026, 16:11.

Change

Previous filing in this sequence was filed on 25 Jun 2026.
Current net transaction value: -$1,484,014.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001844320 Primary reporting owner

Schlosser Mario

Relationship: Director
Address: 75 VARICK STREET, 5TH FLOOR, NEW YORK
Signature: /s/Melissa Curtin, Attorney-in-Fact
Signature date: 06 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

OSCR transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +47,500
Change %
Price
Shares after: 47,500
Date: 01 Jul 2026
Ownership: By Pizzo-Schlosser Family Dynasty Trust
Footnotes: F1, F2, F3

OSCR transaction

Class A Common Stock

Sale

Transaction value: $106,200
Shares: -3,600
Change %: -7.6%
Price: $29.50
Shares after: 43,900
Date: 01 Jul 2026
Ownership: By Pizzo-Schlosser Family Dynasty Trust
Footnotes: F1, F3, F4

OSCR transaction

Class A Common Stock

Sale

Transaction value: $421,098
Shares: -13,672
Change %: -31%
Price: $30.80
Shares after: 30,228
Date: 01 Jul 2026
Ownership: By Pizzo-Schlosser Family Dynasty Trust
Footnotes: F1, F3, F5

OSCR transaction

Class A Common Stock

Sale

Transaction value: $956,716
Shares: -30,228
Change %: -100%
Price: $31.65
Shares after: 0
Date: 01 Jul 2026
Ownership: By Pizzo-Schlosser Family Dynasty Trust
Footnotes: F1, F3, F6

OSCR holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 480,866
Date: 01 Jul 2026
Ownership: Direct
Footnotes: F7

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

OSCR transaction Derivative

Class B Common Stock

Conversion of derivative security

Transaction value
Shares: -47,500
Change %: -8.1%
Price: $0.000000^*
Shares after: 538,333
Date: 01 Jul 2026
Ownership: By Pizzo-Schlosser Family Dynasty Trust
Underlying class: Class A Common Stock
Underlying amount: 47,500
Exercise price
Footnotes: F1, F2, F3

OSCR holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 283,333
Date: 01 Jul 2026
Ownership: By Siena Pizzo-Schlosser Dynasty Trust
Underlying class: Class A Common Stock
Underlying amount: 283,333
Exercise price
Footnotes: F2, F3

OSCR holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 283,333
Date: 01 Jul 2026
Ownership: By Noah Pizzo-Schlosser Dynasty Trust
Underlying class: Class A Common Stock
Underlying amount: 283,333
Exercise price
Footnotes: F2, F3

OSCR holding Derivative

Class B Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,212,293
Date: 01 Jul 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 1,212,293
Exercise price
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 7 footnotes

Footnote F1

The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted on March 24, 2026.

Footnote F2

The Class B common stock is convertible at any time at the option of the holder into Class A common stock on a one-to-one basis, subject to certain exceptions, and will mandatorily convert into Class A common stock on the date that is seven years from the date of the prospectus used in connection with the Issuer's initial public offering and upon the occurrence of certain events as set forth in the Issuer's certificate of incorporation.

Footnote F3

Mr. Schlosser disclaims beneficial ownership over the shares held of record by the trust except to the extent of his pecuniary interest therein, if any.

Footnote F4

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.05 to $30.01, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price at which the transactions were effected.

Footnote F5

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.10 to $31.08, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price at which the transactions were effected.

Footnote F6

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.10 to $32.02, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price at which the transactions were effected.

Footnote F7

Includes shares to be issued in connection with the vesting of one or more restricted stock units.