Richard Scalzo - Jun 13, 2023 Form 4 Insider Report for Dyne Therapeutics, Inc. (DYN)

Role
Senior Vice President, Head of Finance and Administration
Signature
/s/ Richard Scalzo
Stock symbol
DYN
Transactions as of
Jun 13, 2023
Transactions value $
-$611,978
Form type
4
Date filed
6/15/2023, 05:46 PM
Previous filing
Mar 15, 2023
Next filing
Sep 13, 2023

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DYN Common Stock Sale -$17.3K -1.39K -2.53% $12.43 53.5K Jun 13, 2023 Direct F1, F2
transaction DYN Common Stock Options Exercise $41.2K +40K +74.79% $1.03* 93.5K Jun 13, 2023 Direct
transaction DYN Common Stock Sale -$516K -40K -42.79% $12.89 53.5K Jun 13, 2023 Direct F3
transaction DYN Common Stock Sale -$120K -10K -18.7% $12.03 43.5K Jun 15, 2023 Direct F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction DYN Stock Option (right to buy) Options Exercise $0 -40K -50.8% $0.00 38.7K Jun 13, 2023 Common Stock 40K $1.03 Direct F5
* 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 December 10, 2021 and December 9, 2022. 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 Includes 43,297 unvested RSUs.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices within the range of $12.75 to $13.05, 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 ranges set forth in footnotes (1) and (2) of this Form 4.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices within the range of $12.00 to $12.16, inclusive.
F5 The option was granted on January 6, 2020. The shares underlying the option vest over four years, with 25% of the shares vesting on December 2, 2020 and the remaining shares vesting in equal quarterly installments thereafter.

Remarks:

Senior Vice President, Head of Finance and Administration