Form 144: 90,000-Share Sale Notice for RVMD

Morgan Stanley Smith Barney LLC submitted a Form 144 notice relating to the proposed sale of 90,000 shares of Common Stock on 06/15/2026, tied to the exercise of stock options for cash.

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted a Form 144 notice relating to the proposed sale of 90,000 shares of Common Stock on 06/15/2026, tied to the exercise of stock options for cash. The filing also lists prior 10b5-1 sales by Margaret A. Horn of 10,000 shares on 06/11/2026 and 4,583 shares on 03/17/2026.

Insights

Securities Compliance Analyst

Form 144 records a proposed sale of exercised-option shares and prior 10b5-1 dispositions.

The filing lists 90,000 shares to be sold following an exercise of stock options on 06/15/2026. It additionally documents earlier 10b5-1 sales of 10,000 and 4,583 shares by Margaret A. Horn.

Timing and execution mechanics are governed by Section 144 procedures; cash‑flow treatment is described as cash for the exercise. Subsequent filings will report completed transactions and settlement details.

Key Figures

Registered/offered shares: 90,000 shares Prior 10b5-1 sale: 10,000 shares Prior 10b5-1 sale: 4,583 shares +2 more

5 metrics

Registered/offered shares 90,000 shares securities to be sold, <date>06/15/2026</date>

Prior 10b5-1 sale 10,000 shares sale by Margaret A. Horn on <date>06/11/2026</date>

Prior 10b5-1 sale 4,583 shares sale by Margaret A. Horn on <date>03/17/2026</date>

Proceeds reported (example) 1,480,140.00 amount shown with the 10,000-share sale on <date>06/11/2026</date>

Proceeds reported (example) 455,918.67 amount shown with the 4,583-share sale on <date>03/17/2026</date>

Key Terms

Form 144, 10b5-1, Exercise of Stock Options

3 terms

Form 144 regulatory

"144: Securities To Be Sold — Common | 06/15/2026 | Exercise of Stock Options"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

10b5-1 regulatory

"144: Securities Sold During The Past 3 Months — 10b5-1 Sales for MARGARET A HORN"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Exercise of Stock Options financial

"144: Securities To Be Sold — Common | 06/15/2026 | Exercise of Stock Options"

FAQ

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

What does the Form 144 for RVMD show?

The filing reports a proposed sale of 90,000 shares of Common Stock on 06/15/2026, tied to an exercise of stock options. It also lists prior 10b5-1 sales by Margaret A. Horn of 10,000 and 4,583 shares.

Who conducted prior sales listed in the Form 144?

Prior sales were executed by Margaret A. Horn under a 10b5-1 plan: 10,000 shares on 06/11/2026 and 4,583 shares on 03/17/2026, with proceeds shown in the filing.

Are the 90,000 shares being sold by the issuer or a selling holder?

The filing ties the 90,000 shares to an exercise of stock options and lists the method as cash, indicating the shares arise from option exercise. The filing characterizes the transaction as securities to be sold following that exercise.

Does the Form 144 disclose proceeds from recent sales?

Yes; the filing shows monetary amounts alongside prior sales, for example 1,480,140.00 associated with the 10,000-share 10b5-1 sale and 455,918.67 for the 4,583-share sale, as listed in the filing.

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

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Accepted by SEC EDGAR 06/15/2026 - 04:59 PM EDT Learn about SEC filing dates

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	0001294192
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	REVOLUTION MEDICINES INC
SEC File Number	001-39219
Address of Issuer	700 Saginaw Drive Redwood City CALIFORNIA 94063
Phone	6504816801
Name of Person for Whose Account the Securities are To Be Sold	MARGARET A HORN
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	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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	90000	13848300.00	212596462	06/15/2026	NASDAQ

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	06/15/2026	Exercise of Stock Options	Issuer			90000	06/15/2026	Cash

* 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
10b5-1 Sales for MARGARET A HORN 700 Saginaw Drive Redwood City CA 94063	Common	06/11/2026	10000	1480140.00
MARGARET A HORN 700 Saginaw Drive Redwood City CA 94063	Common	03/17/2026	4583	455918.67

144: Remarks and Signature

Remarks	The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.
Date of Notice	06/15/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/12/2026
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	/s/ Margaret Horn
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)