Affiliate files to sell 54,850 OSCR shares

Richard Scott Blackley filed a Form 144 proposing the sale of 54,850 shares of common stock to be sold on 03/01/2026 through Morgan Stanley Smith Barney LLC.

Accepted by SEC EDGAR 03/02/2026 - 04:17 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Richard Scott Blackley filed a Form 144 proposing the sale of 54,850 shares of common stock to be sold on 03/01/2026 through Morgan Stanley Smith Barney LLC. The filing notes restricted stock units vesting under a registered plan as the source, and shows a prior sale of 25,135 shares on 12/02/2025 for $416,989.65.

Insights

Insider Transactions Expert

Routine affiliate resale filing showing proposed sale and a recent prior disposition.

The notice lists a proposed sale of 54,850 shares tied to restricted stock units vesting under a registered plan, with execution through Morgan Stanley Smith Barney LLC on 03/01/2026. This is a procedural disclosure required for affiliate sales.

Past activity in the excerpt includes a sale of 25,135 shares on 12/02/2025 for $416,989.65. Impact on ownership or company capital structure is not shown in the provided excerpt.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the OSCR Form 144 filed by Richard Scott Blackley report?

The filing reports a proposed sale of 54,850 shares to occur on 03/01/2026, sourced from restricted stock units vesting under a registered plan, with brokerage via Morgan Stanley Smith Barney LLC.

How many OSCR shares were sold in the prior three months by the filer?

The excerpt shows a prior sale of 25,135 shares on 12/02/2025 for $416,989.65, reported in the Form 144 under "Securities Sold During The Past 3 Months."

Who is the broker handling the proposed OSCR sale in the Form 144?

The proposed sale lists Morgan Stanley Smith Barney LLC as the broker, with an address at 1 New York Plaza, 8th Floor, New York, NY, appearing in the filing's securities-to-be-sold section.

What is the source of the shares being offered in the OSCR Form 144?

The filing specifies the source as restricted stock units vesting under a registered plan, indicating the shares become available through vesting rather than open-market holdings.

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

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001525020
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Oscar Health, Inc.
SEC File Number	001-40154
Address of Issuer	75 VARICK STREET 5th Floor New York NEW YORK 10013
Phone	646-403-3677
Name of Person for Whose Account the Securities are To Be Sold	Blackley Richard Scott
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Chief Financial Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza, 8th Floor New York NY 10004	19638	268255.08	262157000	03/02/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	03/01/2026	Restricted stock units vesting under a registered plan	Issuer			54850	03/01/2026	Services Rendered

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Richard Scott Blackley 75 Varick Street, 5th Floor New York NY 10013	Common Stock	12/02/2025	25135	416989.65

144: Remarks and Signature

Remarks
Date of Notice	03/02/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/08/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Melissa Curtin, Attorney-in-Fact for Richard Scott Blackley
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)