Revolution Medicines CDO sells 341 shares

Revolution Medicines’ Chief Development Officer reported 341 shares sold under a Rule 10b5-1 plan to cover taxes on vested restricted stock units.

Rhea-AI Filing Summary

Revolution Medicines, Inc. (RVMD) reported that Chief Development Officer Alan B. Sandler sold a total of 341 shares of common stock on September 16, 2026, in open-market or private transactions at prices around $195–$199 per share.

The sales were made pursuant to a Rule 10b5-1 instruction letter adopted on June 13, 2026 to satisfy Mr. Sandler’s tax withholding obligation upon the vesting of restricted stock units. The reported holdings referenced in the footnotes include 209 shares acquired under the Employee Stock Purchase Plan and 52,350 restricted stock units.

Insider Trade Summary 10b5-1

Net Seller: 341 shares

Net Sell 2 txns

Insider Sandler Alan B.

Role Chief Development Officer

Sold 341 shs ($68K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	5	$194.9589	$974.79
Sale	Common Stock F1, F3	336	$199.3032	$67K

Holdings After Transaction: Common Stock — 52,868 shares (Direct)

Footnotes (3)

1. F1. Transaction made pursuant to a Rule 10b5-1 instruction letter adopted on June 13, 2026 to satisfy the Reporting Person's tax withholding obligation upon the vesting of restricted stock units.
2. F2. Includes 209 shares acquired under the Issuer's Employee Stock Purchase Plan on May 31, 2026.
3. F3. Includes 52,350 restricted stock units.

Key Figures

Total shares sold: 341 shares Sale price (lot 1): $194.9589 per share Sale price (lot 2): $199.3032 per share +3 more

6 metrics

Total shares sold 341 shares Common stock sold by Alan B. Sandler on September 16, 2026

Sale price (lot 1) $194.9589 per share 5 shares of RVMD common stock sold September 16, 2026

Sale price (lot 2) $199.3032 per share 336 shares of RVMD common stock sold September 16, 2026

Shares under Employee Stock Purchase Plan 209 shares Shares acquired under the Issuer's Employee Stock Purchase Plan on May 31, 2026

Restricted stock units 52,350 units Restricted stock units included in reported holdings per footnote

Rule 10b5-1 instruction letter adoption date June 13, 2026 Plan governing the September 16, 2026 sales

Key Terms

Rule 10b5-1 instruction letter, restricted stock units, Employee Stock Purchase Plan, tax withholding obligation

4 terms

Rule 10b5-1 instruction letter regulatory

"Transaction made pursuant to a Rule 10b5-1 instruction letter adopted"

restricted stock units financial

"upon the vesting of 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.

Employee Stock Purchase Plan financial

"Includes 209 shares acquired under the Issuer's Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

tax withholding obligation financial

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

FAQ

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

What insider transaction did RVMD report for Chief Development Officer Alan B. Sandler?

RVMD reported that Alan B. Sandler sold 341 shares of common stock on September 16, 2026 in open-market or private transactions at prices around $195–$199 per share.

Were the September 16, 2026 RVMD stock sales by Alan B. Sandler under a Rule 10b5-1 plan?

Yes. The filing states the transactions were made pursuant to a Rule 10b5-1 instruction letter adopted on June 13, 2026 to satisfy Mr. Sandler’s tax withholding obligation upon the vesting of restricted stock units.

How many RVMD shares did Alan B. Sandler sell on September 16, 2026 and at what prices?

He sold 5 shares at $194.9589 per share and 336 shares at $199.3032 per share, for a total of 341 shares sold.

What do the RVMD Form 4 footnotes say about Alan B. Sandler’s equity holdings?

One footnote states his reported holdings include 209 shares acquired under the Employee Stock Purchase Plan. Another notes that his reported holdings include 52,350 restricted stock units.

Was the purpose of Alan B. Sandler’s RVMD stock sale tax-related?

Yes. The filing explains the transactions were made to satisfy tax withholding obligations arising from the vesting of restricted stock units, under a pre-established Rule 10b5-1 instruction letter.

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

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Available on EDGAR 09/18/2026 - 06:06 PM Accepted by SEC EDGAR 09/18/2026 - 06:06 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^*

Sandler Alan B.

(Last) (First) (Middle)

REVOLUTION MEDICINES, INC.

700 SAGINAW DRIVE

(Street)

REDWOOD CITY CALIFORNIA 94063

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Revolution Medicines, Inc. [ RVMD ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/16/2026

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
Common Stock	09/16/2026		S(1)		5	D	$194.9589	53,204(2)	D
Common Stock	09/16/2026		S(1)		336	D	$199.3032	52,868(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. Transaction made pursuant to a Rule 10b5-1 instruction letter adopted on June 13, 2026 to satisfy the Reporting Person's tax withholding obligation upon the vesting of restricted stock units.

2. Includes 209 shares acquired under the Issuer's Employee Stock Purchase Plan on May 31, 2026.

3. Includes 52,350 restricted stock units.

	/s/ Jack Anders, as Attorney-in-fact for Alan B. Sandler	09/18/2026
	** 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)