Mario Schlosser - 11 Nov 2025 Form 4 Insider Report for Oscar Health, Inc. (OSCR)

Role: President of Technology & CTO, Director
Signature: /s/ Melissa Curtin, Attorney-in-fact
Issuer symbol: OSCR
Transactions as of: 11 Nov 2025
Net transactions value: -$2,423,915
Form type: 4
Filing time: 13 Nov 2025, 16:18:05 UTC
Previous filing: 24 Sep 2025
Next filing: 04 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Schlosser Mario	President of Technology & CTO, Director	75 VARICK STREET, 5TH FLOOR, NEW YORK	/s/ Melissa Curtin, Attorney-in-fact	13 Nov 2025	0001844320

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OSCR	Class A Common Stock	Conversion of derivative security		+286,182	+57%		787,330	11 Nov 2025	Direct	F1
transaction	OSCR	Class A Common Stock	Sale	$4,369,999	-286,182	-36%	$15.27	501,148	11 Nov 2025	Direct	F2, F3
transaction	OSCR	Class A Common Stock	Conversion of derivative security		+105,300	+21%		606,448	12 Nov 2025	Direct	F1
transaction	OSCR	Class A Common Stock	Sale	$1,584,765	-105,300	-17%	$15.05	501,148	12 Nov 2025	Direct	F2, F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	OSCR	Stock Option (Right to Buy)	Options Exercise	$0	-413,835	-75%	$0.000000	141,330	11 Nov 2025	Class B Common Stock	413,835	$6.36	Direct	F5
transaction	OSCR	Class B Common Stock	Options Exercise	$2,631,991	+413,835	+27%	$6.36	1,929,138	11 Nov 2025	Class A Common Stock	413,835		Direct	F1
transaction	OSCR	Class B Common Stock	Conversion of derivative security	$0	-286,182	-15%	$0.000000	1,642,956	11 Nov 2025	Class A Common Stock	286,182		Direct	F1
transaction	OSCR	Stock Option (Right to Buy)	Options Exercise	$0	-141,330	-100%	$0.000000	0	12 Nov 2025	Class B Common Stock	141,330	$6.36	Direct	F5
transaction	OSCR	Class B Common Stock	Options Exercise	$898,859	+141,330	+8.6%	$6.36	1,784,286	12 Nov 2025	Class A Common Stock	141,330		Direct	F1
transaction	OSCR	Class B Common Stock	Conversion of derivative security	$0	-105,300	-5.9%	$0.000000	1,678,986	12 Nov 2025	Class A Common Stock	105,300		Direct	F1
holding	OSCR	Class B Common Stock						333,333	11 Nov 2025	Class A Common Stock	333,333		By Noah Pizzo-Schlosser Dynasty Trust	F1, F6
holding	OSCR	Class B Common Stock						633,333	11 Nov 2025	Class A Common Stock	633,333		By Pizzo-Schlosser Family Dynasty Trust	F1, F6
holding	OSCR	Class B Common Stock						333,333	11 Nov 2025	Class A Common Stock	333,333		By Siena Pizzo-Schlosser Dynasty Trust	F1, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	The sale was effected to cover the cost of exercise and to satisfy the Reporting Person's tax withholding obligation arising from the stock option exercise reported herein.
F3	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.00 to $15.50, 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.
F4	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.83 to $15.25, 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.
F5	The stock option is fully vested and exercisable, and expires on December 7, 2025.
F6	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.