Richard Scalzo - Sep 20, 2021 Form 4 Insider Report for Dyne Therapeutics, Inc. (DYN)

Signature
/s/ Richard Scalzo, Attorney-in-Fact
Stock symbol
DYN
Transactions as of
Sep 20, 2021
Transactions value $
-$13,655
Form type
4
Date filed
9/22/2021, 08:03 PM
Next filing
Dec 14, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DYN Common Stock Sale -$5.73K -367 -3.2% $15.61 11.1K Sep 20, 2021 Direct F1, F2, F3
transaction DYN Common Stock Sale -$7.93K -492 -4.43% $16.11 10.6K Sep 21, 2021 Direct F1, F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares automatically sold by the Reporting Person to satisfy tax withholding obligations in connection with the vesting of restricted stock units granted to the Reporting Person on September 17, 2020. The automatic sale of the Reporting Person's shares is provided for in a restricted stock unit agreement constituting a "binding contract" consistent with the affirmative defense to liability under Rule 10b5-1 and the sale does not represent a discretionary trade by the Reporting Person.
F2 The price reported in Column 4 is a weighted average price that represents the price of all shares sold by a broker on September 20, 2021 on behalf of a group of employees of the issuer to satisfy tax withholding obligations. These shares were sold in multiple transactions at prices within the range of $15.22 to $16.01, inclusive. The Reporting Person undertakes 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 range(s) set forth in footnote (2) and (4) of this Form 4.
F3 Includes 8,599 unvested RSUs.
F4 The price reported in Column 4 is a weighted average price that represents the price of all shares sold by a broker on September 21, 2021 on behalf of a group of employees of the issuer to satisfy tax withholding obligations. These shares were sold in multiple transactions at prices within the range of $15.87 to $16.36, inclusive.

Remarks:

Vice President of Accounting and Administration and Treasurer