Joshua T. Brumm - Jun 8, 2023 Form 4 Insider Report for Dyne Therapeutics, Inc. (DYN)

Role
Chief Executive Officer and President, Director
Signature
/s/ Richard Scalzo, Attorney-in-Fact
Stock symbol
DYN
Transactions as of
Jun 8, 2023
Transactions value $
-$3,909,426
Form type
4
Date filed
6/12/2023, 09:22 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 Gift $0 -20K -6.2% $0.00 302K Jun 8, 2023 Direct F1
transaction DYN Common Stock Gift $0 -1.8K -0.6% $0.00 301K Jun 8, 2023 Direct F1
transaction DYN Common Stock Options Exercise $31K +30.1K +10.01% $1.03* 331K Jun 8, 2023 Direct
transaction DYN Common Stock Sale -$616K -46.8K -14.15% $13.15 284K Jun 8, 2023 Direct F2
transaction DYN Common Stock Sale -$191K -14.2K -5% $13.47 270K Jun 8, 2023 Direct F3
transaction DYN Common Stock Options Exercise $78.9K +76.6K +28.39% $1.03* 346K Jun 9, 2023 Direct
transaction DYN Common Stock Sale -$1.02M -76.6K -22.11% $13.34 270K Jun 9, 2023 Direct F4
transaction DYN Common Stock Options Exercise $177K +171K +63.52% $1.03* 441K Jun 12, 2023 Direct
transaction DYN Common Stock Sale -$2.37M -188K -42.56% $12.61 253K Jun 12, 2023 Direct F5

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 -30.1K -8.65% $0.00 318K Jun 8, 2023 Common Stock 30.1K $1.03 Direct F6
transaction DYN Stock Option (right to buy) Options Exercise $0 -76.6K -24.11% $0.00 241K Jun 9, 2023 Common Stock 76.6K $1.03 Direct F6
transaction DYN Stock Option (right to buy) Options Exercise $0 -171K -71.08% $0.00 69.7K Jun 12, 2023 Common Stock 171K $1.03 Direct F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This transaction was a charitable donation to a third party effective June 8, 2023 in which no value was received in return.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices within the range of $13.10 to $13.23, 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.
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 $13.24 to $14.22, inclusive.
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 $13.00 to $13.64, inclusive.
F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices within the range of $12.18 to $13.14, inclusive.
F6 The option was granted on January 6, 2020. The shares underlying the option vest over four years, with 25% of the shares vesting on October 12, 2020 and the remaining shares vesting in equal quarterly installments thereafter.

Remarks:

Chief Executive Officer and President