Bethany J. Cavanagh - Aug 9, 2024 Form 3 Insider Report for Beam Therapeutics Inc. (BEAM)

Role: SVP, Finance and Treasurer
Signature: By: /s/ Christine Bellon, Attorney-in-Fact
Stock symbol: BEAM
Transactions as of: Aug 9, 2024
Transactions value $: $0
Form type: 3
Date filed: 8/19/2024, 04:15 PM
Next filing: Sep 3, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	BEAM	Common Stock						42.7K	Aug 9, 2024	Direct	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	BEAM	Stock Option (Right to Buy)							Aug 9, 2024	Common Stock	8.54K	$80.04	Direct	F3, F4
holding	BEAM	Stock Option (Right to Buy)							Aug 9, 2024	Common Stock	7.5K	$110.92	Direct	F5
holding	BEAM	Stock Option (Right to Buy)							Aug 9, 2024	Common Stock	20K	$69.21	Direct	F6
holding	BEAM	Stock Option (Right to Buy)							Aug 9, 2024	Common Stock	27K	$43.45	Direct	F7
holding	BEAM	Stock Option (Right to Buy)							Aug 9, 2024	Common Stock	20K	$24.40	Direct	F8

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Includes 1,250, 1,875, 5,000, 10,125, 9,500 and 10,000 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, March 31, 2023, December 31, 2023, and March, 31, 2024, respectively.
F2	Each RSU represents the contingent right to receive one share of the Issuer's common stock. The March 31, 2021, September 30, 2021, March 31, 2022, March 31, 2023 and March 31, 2024 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 31, 2023 RSUs grant vests on the one-year anniversary of the grant date, subject to the Reporting Person's continued service with the Issuer through the vesting date. The March 31, 2021 RSUs grant was originally for 5,000 RSUs of which 3,750 have already vested. The September 30, 2021 RSUs grant was originally for 3,750 RSUs of which 1,875 RSUs have already vested. The March 31, 2022 RSUs grant was originally for 10,000 RSUs of which 5,000 RSUs have already vested. The March 31, 2023 RSUs grant was originally for 13,500 RSUs of which 3,375 RSUs have already vested.
F3	The option vests at a rate of 2.08% each month after March 31, 2021 until the option is fully vested.
F4	The option grant was originally for options to purchase 10,000 shares of the Issuer's common stock of which 1,458 have already been exercised.
F5	The option vests at a rate of 2.08% each month after August 31, 2021 until the option is fully vested.
F6	The option vests at a rate of 2.08% each month after January 31, 2022 until the option is fully vested.
F7	The option vests at a rate of 2.08% each month after January 31, 2023 until the option is fully vested.
F8	The option vests at a rate of 2.08% each month after January 31, 2024 until the option is fully vested.

Remarks:

Exhibit List: Exhibit 24 - Power of Attorney