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).

1. Name and Address of Reporting Person* Ciaramella Giuseppe (Last) (First) (Middle) C/O BEAM THERAPEUTICS INC., 238 MAIN STREET (Street) CAMBRIDGE MA 02142 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Beam Therapeutics Inc. [ BEAM ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) President
	3. Date of Earliest Transaction (Month/Day/Year) 04/01/2024
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person
	Rule 10b5-1(c) Transaction Indication X Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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	04/01/2024		S(1)		4,534	D	$32.12(2)	169,616	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
Stock Option (Right to Buy)	$0.67	04/03/2024		A		27,318		04/03/2024(3)	05/08/2028	Common Stock	27,318	$0.00	27,318	D
Stock Option (Right to Buy)	$4.22	04/03/2024		A		12,979		04/03/2024(4)	02/13/2029	Common Stock	12,979	$0.00	12,979	D

Explanation of Responses:

1. These shares of common stock were automatically sold in a non-discretionary transaction by the Reporting Person in order to cover tax withholding obligations upon the vesting of certain restricted stock units granted to the Reporting Person under the Beam Therapeutics Inc. ("BEAM") 2019 Equity Incentive Plan on each of March 31, 2021, March 31, 2022 and March 31, 2023. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 23, 2023.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $32.09 to $32.18, inclusive. The Reporting Person undertakes to provide to BEAM, any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

3. On May 8, 2018, the Reporting Person was granted an option to purchase 27,318 shares of common stock of BEAM. The option vests upon BEAM achieving a certain development milestone related to base editing applications. On April 3, 2024, the board of directors of BEAM determined that this performance condition was achieved, resulting in the vesting of 27,318 shares.

4. On February 13, 2019, the Reporting Person was granted an option to purchase 12,979 shares of common stock of BEAM. The option vests upon BEAM achieving a certain development milestone related to base editing applications. On April 3, 2024, the board of directors of BEAM determined that this performance condition was achieved, resulting in the vesting of 12,979 shares.

	By: /s/ Christine Bellon, Attorney-in-fact	04/03/2024
	** 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).
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