0001972481-24-000138.txt : 20240611 0001972481-24-000138.hdr.sgml : 20240611 20240611162027 ACCESSION NUMBER: 0001972481-24-000138 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240611 DATE AS OF CHANGE: 20240611 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Dyne Therapeutics, Inc. CENTRAL INDEX KEY: 0001818794 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 364883909 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-39509 FILM NUMBER: 241036051 BUSINESS ADDRESS: STREET 1: 1560 TRAPELO ROAD CITY: WALTHAM STATE: MA ZIP: 02451 BUSINESS PHONE: (781) 786-8230 MAIL ADDRESS: STREET 1: 1560 TRAPELO ROAD CITY: WALTHAM STATE: MA ZIP: 02451 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Scalzo Richard William CENTRAL INDEX KEY: 0001789545 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 25 ALBERTA LANE CITY: HOLLISTON STATE: MA ZIP: 01746 144 1 primary_doc.xml 144 0001789545 XXXXXXXX LIVE 0001818794 Dyne Therapeutics, Inc. 001-39509 1560 TRAPELO ROAD WALTHAM MA 02451 (781) 786-8230 Scalzo Richard William Officer Common Stock Stifel Nicolaus & Company Inc.

501 N Broadway St Louis MO 63102

1331 41926.00 87382638 06/11/2024 NASDAQ Common Stock 06/10/2024 Restricted Stock Units Issuer N 1044 06/11/2024 Compensation Common Stock 06/10/2024 Restricted Stock Units Issuer N 1937 06/11/2024 Compensation N Richard Scalzo

1560 TRAPELO ROAD WALTHAM MA 02451

Common Stock 05/16/2024 2589 73191.00 Richard Scalzo

1560 TRAPELO ROAD WALTHAM MA 02451

Common Stock 06/10/2024 1590 48066.00 06/11/2024 /s/ Dominick Iadicicco, as a duly authorized representative of STIFEL, as attorney-in-fact for Richard Scalzo