SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Bellon Christine

(Last)

(First)

(Middle)

C/O BEAM THERAPEUTICS INC.

238 MAIN STREET

(Street)

CAMBRIDGE

02142

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/16/2023

3. Issuer Name and Ticker or Trading Symbol
Beam Therapeutics Inc. [ BEAM ]

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

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

5. 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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	58,441⁽¹⁾⁽²⁾	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Option (Right to Buy)	⁽³⁾	03/31/2031	Common Stock	23,959⁽⁴⁾	$80.04	D
Stock Option (Right to Buy)	⁽⁵⁾	01/31/2032	Common Stock	30,000	$69.21	D
Stock Option (Right to Buy)	⁽⁶⁾	01/31/2033	Common Stock	35,000	$43.45	D
Stock Option (Right to Buy)	⁽⁷⁾	05/16/2029	Common Stock	19,946⁽⁸⁾	$7.22	D
Stock Option (Right to Buy)	⁽⁹⁾	05/17/2029	Common Stock	19,405⁽¹⁰⁾	$7.22	D
Stock Option (Right to Buy)	⁽¹¹⁾	08/31/2031	Common Stock	10,000	$110.92	D
Stock Option (Right to Buy)	⁽¹²⁾	12/30/2032	Common Stock	25,000	$39.11	D

Explanation of Responses:

1. Includes 9,375, 3,750, 15,000 and 12,500 restricted stock units ("RSUs") granted to the Reporting Person under the Issuer's 2019 Equity Incentive Plan on March 31, 2021, September 30, 2021, March 31, 2022 and December 30, 2022, respectively.

2. Each RSU represents the contingent right to receive one share of the Issuer's common stock. The March 31, 2021, September 30, 2021 and March 31, 2022 RSUs vest in four substantially equal installments on each of the first four anniversaries of the date of grant, subject to the Reporting Person's continued service with the Issuer through each vesting date. The December 30, 2022 RSUs vest in three substantially equal installments on each of the first three anniversaries of the grant date, subject to the Reporting Person's continued service with the Issuer through each vesting date. The March 31, 2021 RSUs grant was originally for 12,500 RSUs of which 3,125 RSUs have already vested. The September 30, 2021 RSUs grant was originally for 5,000 RSUs of which 1,250 RSUs have already vested.

3. The option vests at a rate of 2.08% each month until the option is fully vested.

4. The option grant was originally for options to purchase 25,000 shares of the Issuer's common stock of which 1,041 have already been exercised.

5. The option vests at a rate of 2.08% each month until the option is fully vested.

6. The option vests at a rate of 2.08% each month thereafter until the option is fully vested.

7. The option vests as to 25% on the first anniversary of the vesting commencement date, May 16, 2020, and at a rate of 2.78% each month thereafter until the option is fully vested.

8. The option grant was originally for options to purchase 100,350 shares of the Issuer's common stock of which 80,404 have already been exercised.

9. The option vests as to 25% on the first anniversary of the vesting commencement date, May 17, 2020, and at a rate of 2.78% each month thereafter until the option is fully vested.

10. The option grant was originally for options to purchase 42,704 shares of the Issuer's common stock of which 23,299 have already been exercised.

11. The option vests at a rate of 2.08% each month thereafter until the option is fully vested.

12. The option vests at a rate of 2.78% each month until the option is fully vested.

Remarks:

Exhibit List: Exhibit 24 - Power of Attorney

	By: /s/ Christine Bellon	03/27/2023
	** 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 5 (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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