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Filing Details

Accession Number:: 0001415889-24-004467
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2024-02-20 18:35:34
Reporting Period:: 2024-02-15

Accepted Time:: 2024-02-20 18:35:34
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1818794	Dyne Therapeutics Inc.	DYN	()	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1708269	Atlas Venture Fund Xi, L.p.	300 Technology Square, 8Th Floor Cambridge MA 02139	No	No	No	No
1780067	Atlas Venture Associates Xi, Llc	300 Technology Square, 8Th Floor Cambridge MA 02139	No	No	Yes	No
1780068	Atlas Venture Associates Xi, L.p.	300 Technology Square, 8Th Floor Cambridge MA 02139	No	No	Yes	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Disposition	2024-02-15	175,793	$23.88	7,150,324	No	4	S	Direct
Common Stock	Disposition	2024-02-15	2,113	$24.45	7,148,211	No	4	S	Direct
Common Stock	Disposition	2024-02-16	162,707	$23.14	6,985,504	No	4	S	Direct
Common Stock	Disposition	2024-02-20	166,029	$22.71	6,819,475	No	4	S	Direct
Common Stock	Disposition	2024-02-20	3,510	$23.40	6,815,965	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Footnotes

This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund XI, L.P. on January 10, 2024.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.40 to $24.3943 inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, 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 ranges set forth in footnotes (2), (4), (5), (6) and (7).
The shares are held directly by Atlas Venture Fund XI, L.P. ("Atlas Venture Fund XI"). The general partner of Atlas Venture Fund XI is Atlas Venture Associates XI, L.P. ("AVA XI LP"). Atlas Venture Associates XI, LLC ("AVA XI LLC") is the general partner of AVA XI LP. Each of AVA XI LP and AVA XI LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund XI, except to the extent of its pecuniary interest therein, if any.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.40 to $24.51 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.878 to $23.54 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.117 to $23.09 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.16 to $24.01 inclusive.