Oscar Health CAO sells 958 shares at $31.45

Oscar Health’s Chief Accounting Officer sold a small block of shares under a pre-arranged Rule 10b5-1 plan to cover tax withholding tied to equity award vesting.

Rhea-AI Filing Summary

Oscar Health, Inc. (OSCR) Chief Accounting Officer Victoria Baltrus reported selling 958 shares of Class A Common Stock on September 3, 2026 at a weighted average price of $31.45 per share. The sale was made under a Rule 10b5-1 instruction letter entered into on August 8, 2025 to satisfy tax withholding on vesting equity awards, and she now holds 213,631 shares, including shares to be issued from restricted stock unit vesting.

Insider Trade Summary 10b5-1

Net Seller: 958 shares

Net Sell 1 txn

Insider Baltrus Victoria

Role Chief Accounting Officer

Sold 958 shs ($30K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2, F3	958	$31.45	$30K

Holdings After Transaction: Class A Common Stock — 213,631 shares (Direct)

Footnotes (3)

1. F1. The sale was effected pursuant to a Rule 10b5-1 instruction letter entered into on August 8, 2025 to satisfy the Reporting Person's tax withholding obligation upon the vesting of previously granted equity awards.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.97 to $31.96, 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.
3. F3. Includes shares to be issued in connection with the vesting of one or more restricted stock units.

Key Figures

Shares sold: 958 shares Weighted average sale price: $31.45 per share Sale price range: $30.97–$31.96 per share +2 more

5 metrics

Shares sold 958 shares Class A Common Stock sold on September 3, 2026

Weighted average sale price $31.45 per share Sale of 958 shares on September 3, 2026

Sale price range $30.97–$31.96 per share Multiple transactions included in the reported sale

Shares owned after transaction 213,631 shares Direct holdings after September 3, 2026 sale, including shares from RSU vesting

Rule 10b5-1 instruction letter date August 8, 2025 Plan governing the reported sale

Key Terms

Rule 10b5-1 instruction letter, weighted average price, restricted stock units, tax withholding obligation

4 terms

Rule 10b5-1 instruction letter regulatory

"The sale was effected pursuant to a Rule 10b5-1 instruction letter entered into"

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

restricted stock units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligation financial

"to satisfy the Reporting Person's tax withholding obligation upon the vesting"

FAQ

What insider transaction did OSCR’s Chief Accounting Officer report?

She reported a sale of 958 shares of Oscar Health Class A Common Stock on September 3, 2026 at a weighted average price of $31.45 per share.

Was the OSCR insider sale made under a Rule 10b5-1 plan?

Yes. The filing states the sale was effected pursuant to a Rule 10b5-1 instruction letter entered into on August 8, 2025.

Why did the Oscar Health (OSCR) insider sell these shares?

The filing explains the sale was made to satisfy the reporting person’s tax withholding obligation arising from the vesting of previously granted equity awards.

What is the price range of the OSCR insider’s share sales?

The $31.45 reported price is a weighted average. The shares were sold in multiple transactions at prices ranging from $30.97 to $31.96, inclusive.

How many OSCR shares does the Chief Accounting Officer hold after the transaction?

After the reported sale, she holds 213,631 shares of Oscar Health Class A Common Stock, including shares to be issued upon vesting of restricted stock units.

Is the reported OSCR insider ownership direct or indirect?

The filing classifies the ownership of the reported shares as direct ownership.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/08/2026 - 04:17 PM Accepted by SEC EDGAR 09/08/2026 - 04:16 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Baltrus Victoria

(Last) (First) (Middle)

75 VARICK STREET, 5TH FLOOR

(Street)

NEW YORK NEW YORK 10013

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Oscar Health, Inc. [ OSCR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/03/2026		S		958(1)	D	$31.45(2)	213,631(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sale was effected pursuant to a Rule 10b5-1 instruction letter entered into on August 8, 2025 to satisfy the Reporting Person's tax withholding obligation upon the vesting of previously granted equity awards.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.97 to $31.96, 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.

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

Remarks:

	/s/ Melissa Curtin, Attorney-in-fact	09/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)