Sell4

Beam Therapeutics Inc.

BEAM

Total Value

$1.3M

Net $1.2M sold

Filing Date

Oct 16, 2026

2 transactions

Sales

$1.2M

2 transactions

Trade Summary

On Oct 15, 2026 through Oct 16, 2026, Evans John M., Insider, sold $1.3M of Beam Therapeutics Inc. (BEAM) across 2 transactions. The filing covers Common Stock and reflects net selling of $1.2M. Reported prices ranged from $1.03 to $23.98. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Price at the Time of the Trade

BEAM daily price with the insider's sale marked at $23.77.

Sold near the 6-month low · about level with today's price.

Price data is delayed and provided for context only — not investment advice.

Insider Information

Name: Evans John M.
Role: Insider
Location: CAMBRIDGE, MA

Filing Details

Filing Date: Oct 16, 2026
Transaction Date: Oct 15, 2026
Accession Number: 0001193125-26-424421
Form Type: 4
Net Trading Amount: -$1.2M

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Oct 15, 2026	Common Stock	25,000	$1.03	Exercise	$25.8K
Oct 15, 2026	Common Stock	25,000	$23.57	Sale	$589.1K
Oct 16, 2026	Common Stock	25,000	$1.03	Exercise	$25.8K
Oct 16, 2026	Common Stock	25,000	$23.98	Sale	$599.6K

Derivative Transactions

Date	Security	Shares	Exercise Price	Type	Value
Oct 15, 2026	BEAM derivative	25,000	$1.03	Exercise	$25.8K
Oct 16, 2026	BEAM derivative	25,000	$1.03	Exercise	$25.8K

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Footnotes

(F1)The stock options were exercised and the shares of common stock were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 16, 2026.
(F2)The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $23.23 to $23.84, inclusive. 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.
(F3)The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $23.66 to $24.56, 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.
(F4)On July 13, 2018, the Reporting Person was granted an option to purchase 539,645 shares of common stock, which vested as to 25% of the underlying shares on January 8, 2019 and in 36 equal monthly installments thereafter.

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).

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^*

Evans John M.

(Last)

(First)

(Middle)

C/O BEAM THERAPEUTICS INC.,

238 MAIN STREET

(Street)

CAMBRIDGE

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)

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

3. Date of Earliest Transaction (Month/Day/Year)
10/15/2026

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/15/2026		M⁽¹⁾		25,000	A	$1.03	1,072,205	D
Common Stock	10/15/2026		S⁽¹⁾		25,000	D	$23.566⁽²⁾	1,047,205	D
Common Stock	10/16/2026		M⁽¹⁾		25,000	A	$1.03	1,072,205	D
Common Stock	10/16/2026		S⁽¹⁾		25,000	D	$23.9838⁽³⁾	1,047,205	D
Common Stock								103,000	I	By John M. Evans, III 2018 Irrevocable Trust

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)	$1.03	10/15/2026		M⁽¹⁾			25,000	⁽⁴⁾	07/13/2028	Common Stock	25,000	$0	180,804	D
Stock Option (Right to Buy)	$1.03	10/16/2026		M⁽¹⁾			25,000	⁽⁴⁾	07/13/2028	Common Stock	25,000	$0	155,804	D

Explanation of Responses:

1. The stock options were exercised and the shares of common stock were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 16, 2026.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $23.23 to $23.84, inclusive. 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.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $23.66 to $24.56, 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.

4. On July 13, 2018, the Reporting Person was granted an option to purchase 539,645 shares of common stock, which vested as to 25% of the underlying shares on January 8, 2019 and in 36 equal monthly installments thereafter.

	By: /s/ Christine Bellon, Attorney-in-fact	10/16/2026
	** 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 as rendered by the SEC from accession 0001193125-26-424421.

Beam Therapeutics Inc.

Trade Summary

Price at the Time of the Trade

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

Price at the Time of the Trade

SEC Form 4