[144] Beam Therapeutics Inc. SEC Filing

Rhea-AI Filing Summary

BEAM affiliate submitted a Form 144 notice proposing the sale of 20,000 shares of Common Stock. The filing lists the disposition method as Restricted Stock Vesting with an issuer-related transfer dated 03/31/2026. Recent reported sales by the same holder include $33,978.85 for 1,254 shares on 01/02/2026, $644,830.68 for 18,629 shares on 01/15/2026, and $46,614 for 1,371 shares on 01/22/2026. The cover records 101,856,245 shares (as of 04/02/2026).

Insights

Securities Compliance Analyst

Form 144 reports an affiliate's planned resale of vested restricted stock.

The filing lists a proposed sale of 20,000 shares tied to restricted stock vesting on 03/31/2026. Form 144 is a notice required under Rule 144 when affiliates intend to resell restricted or control securities; it does not itself execute a sale.

Cash‑flow treatment and timing are not specified here; subsequent brokered transactions or a Form 4/5 would show completed trades and final proceeds. Future filings will clarify whether these shares are sold on the open market or via another distribution method.

Key Figures

Proposed resale: 20,000 shares Shares outstanding: 101,856,245 Past sale — 01/02/2026: 1,254 shares / $33,978.85 +2 more

5 metrics

Proposed resale 20,000 shares Restricted stock vesting dated <date>03/31/2026</date>

Shares outstanding 101,856,245 as of <date>04/02/2026</date>

Past sale — 01/02/2026 1,254 shares / <money>$33,978.85</money> completed sale listed in filing

Past sale — 01/15/2026 18,629 shares / <money>$644,830.68</money> completed sale listed in filing

Past sale — 01/22/2026 1,371 shares / <money>$46,614</money> completed sale listed in filing

Key Terms

Form 144, Restricted Stock Vesting, Issuer

3 terms

Form 144 regulatory

"Notice of proposed sale of restricted or control securities"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Securities To Be Sold | 03/31/2026 | Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Issuer financial

"Disposition listed as 'Issuer' in the securities to be sold section"

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	ETRADE FINANCIAL CORPORATION 3 EDISON DRIVE ALPHARETTA GA 30005	20000	438000	101856245	04/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	03/31/2026	Restricted Stock Vesting	Issuer			20000	03/31/2026	Services Rendered

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Christine Bellon 238 Main Street Cambridge MA 02142	Common Stock	01/02/2026	1254	33978.85
Christine Bellon 238 Main Street Cambridge MA 02142	Common Stock	01/15/2026	18629	644830.68
Christine Bellon 238 Main Street Cambridge MA 02142	Common Stock	01/22/2026	1371	46614

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)