Oscar Health (OSCR) CAO sells 1,523 shares in tax-driven 10b5-1 trades

Rhea-AI Filing Summary

Oscar Health, Inc. Chief Accounting Officer Victoria Baltrus reported selling 1,523 shares of Class A common stock on June 2, 2026 in two open-market transactions at weighted-average prices around $21–$23. According to the disclosure, these sales were made under a Rule 10b5-1 instruction letter to satisfy tax withholding obligations from previously vested equity awards. After the transactions, she continues to directly hold about 214,589 shares, so the sale represents a small portion of her overall position.

Insights

Equity compensation and insider-trading specialist

Small, pre-planned tax-related sale with limited signaling value.

The filing shows Victoria Baltrus, Chief Accounting Officer of Oscar Health, sold 1,523 shares of Class A common stock in open-market transactions. Footnotes state the activity followed a Rule 10b5-1 instruction letter and was intended to cover tax withholding on vested equity awards.

Because these transactions are tied to compensation vesting and executed under a pre-arranged plan, they typically carry less information about management’s view of the stock. Baltrus still holds about 214,589 shares directly, indicating the sale is small relative to her remaining ownership.

Insider Trade Summary 10b5-1

Net Seller: 1,523 shares ($33,417)

Net Sell 2 txns

Insider Baltrus Victoria

Role Chief Accounting Officer

Sold 1,523 shs ($33K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	1,091	$21.74	$24K
Sale	Class A Common Stock	432	$22.45	$10K

Holdings After Transaction: Class A Common Stock — 215,021 shares (Direct, null)

Footnotes (1)

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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.03 to $22.02, 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. Includes shares to be issued in connection with the vesting of one or more restricted stock units. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.03 to $22.96, 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.

Key Figures

Shares sold: 1,523 shares Sale tranche 1: 432 shares at $22.45 Sale tranche 2: 1,091 shares at $21.74 +4 more

7 metrics

Shares sold 1,523 shares Total Class A common stock sold on June 2, 2026

Sale tranche 1 432 shares at $22.45 Open-market sale of Class A common stock

Sale tranche 2 1,091 shares at $21.74 Open-market sale of Class A common stock

Post-transaction holdings 214,589 shares Direct Class A common stock held after reported sales

Price range tranche 1 $21.03–$22.02 Weighted-average price range for one sale block

Price range tranche 2 $22.03–$22.96 Weighted-average price range for second sale block

Rule 10b5-1 date August 8, 2025 Date of instruction letter governing these sales

Key Terms

Rule 10b5-1, weighted average price, restricted stock units, open-market sale, +1 more

5 terms

Rule 10b5-1 regulatory

"The sale was effected pursuant to a Rule 10b5-1 instruction letter entered into on August 8, 2025"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

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.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

tax withholding obligation financial

"to satisfy the Reporting Person's tax withholding obligation upon the vesting of previously granted equity awards"

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Form 4 Insider Transactions: What Each Field Means →

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)
06/02/2026

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	06/02/2026		S		1,091(1)	D	$21.74(2)	215,021(3)	D
Class A Common Stock	06/02/2026		S		432(1)	D	$22.45(4)	214,589(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 $21.03 to $22.02, 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.

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

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.03 to $22.96, 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.

Remarks:

	/s/ Melissa Curtin, Attorney-in-fact	06/04/2026
	** 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)

FAQ

What insider transaction did Oscar Health (OSCR) report for Victoria Baltrus?

Oscar Health reported that Chief Accounting Officer Victoria Baltrus sold 1,523 shares of Class A common stock. The sales occurred in two open-market transactions on June 2, 2026, at weighted-average prices in the low-$20 range, according to the Form 4 disclosure and footnotes.

Why did Oscar Health’s officer Victoria Baltrus sell OSCR shares?

The filing states the sales were made under a Rule 10b5-1 instruction letter to satisfy tax withholding obligations. These obligations arose from the vesting of previously granted equity awards, making the transactions compensation-driven rather than a discretionary reduction in ownership.

How many Oscar Health (OSCR) shares does Victoria Baltrus hold after the sale?

After the reported transactions, Victoria Baltrus directly holds about 214,589 shares of Oscar Health Class A common stock. This indicates the 1,523 shares sold represent only a small fraction of her total reported direct holdings following the June 2, 2026 trades.

At what prices did Victoria Baltrus sell her Oscar Health shares?

The reported weighted-average prices were $21.74 and $22.45 per share for the two transactions. Footnotes explain that each sale consisted of multiple trades, with prices ranging from $21.03 to $22.96 per share across the reported transactions in the open market.

Were Victoria Baltrus’s Oscar Health share sales under a Rule 10b5-1 plan?

Yes. A footnote explains the sale was effected pursuant to a Rule 10b5-1 instruction letter entered into on August 8, 2025. This pre-arranged trading instruction was used to cover tax withholding obligations connected to vested equity awards, reducing timing-related concerns.

Do the Oscar Health Form 4 footnotes mention restricted stock units (RSUs)?

Yes. One footnote states that the reported holdings include shares to be issued in connection with the vesting of one or more restricted stock units. This clarifies that part of Victoria Baltrus’s reported position reflects equity awards that will convert into shares as they vest.