Beam Therapeutics Inc. — Director's Dealing 2021

Aug 21, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Beam Therapeutics Inc. (BEAM)
CIK: 0001745999
Period of Report: 2021-08-19

Reporting Person: Evans John M. (Director, CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-08-19	Common Stock	S	400	$96.38	Disposed	222600	Indirect
2021-08-19	Common Stock	S	1000	$97.50	Disposed	221600	Indirect
2021-08-19	Common Stock	S	3140	$98.74	Disposed	218460	Indirect
2021-08-19	Common Stock	S	9704	$99.53	Disposed	208756	Indirect
2021-08-19	Common Stock	S	5456	$100.35	Disposed	203300	Indirect
2021-08-19	Common Stock	S	300	$101.00	Disposed	203000	Indirect
2021-08-19	Common Stock	M	12000	$1.03	Acquired	1033525	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-08-19	Stock Option (Right to Buy)	$1.03	M	12000	Disposed	2028-07-13	Common Stock (12000)	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. The sale price reported is a weighted average price. The Reporting Person undertakes to provide to Beam Therapeutics Inc. ("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.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $96.07 to $96.97, inclusive.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $97.22 to $97.85, inclusive.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $98.33 to $98.99, inclusive.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $99.01 to $99.95, inclusive.

F6: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $100.04 to $100.99, inclusive.

F7: The option vests as to 25% on the first anniversary of the of the vesting commencement date, January 8, 2018, and at a rate of 2.78% each month thereafter until the option is fully vested.