Key facts
- This page summarizes Richard William Scalzo's Form 4 filing for Dyne Therapeutics, Inc. (DYN).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 13 Mar 2025, 16:08.
Richard William Scalzo - 11 Mar 2025 Form 4 Insider Report for Dyne Therapeutics, Inc. (DYN)
- Reporting relationship
- SVP, Head of Finance & Admin.
- Issuer ticker
- DYN
- Reported as of
- 11 Mar 2025
- Net transaction value
- -$15,283
- SEC form
- 4
- Accepted by SEC
- 13 Mar 2025, 16:08:57 UTC
- Prior SEC filing
- 07 Mar 2025
- Next SEC filing
- 23 Jun 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Richard Scalzo
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Richard William Scalzo filed Form 4 for Dyne Therapeutics, Inc. (DYN) on 13 Mar 2025.
Change
- Previous filing in this sequence was filed on 07 Mar 2025.
- Current net transaction value: -$15,283.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
DYN
transaction
Common Stock
Sale
- Transaction value
- $15,283
- Shares
- -1,343
- Change %
- -1.1%
- Price
- $11.38
- Shares after
- 122,330
- Date
- 11 Mar 2025
- Ownership
- Direct
- Footnotes
- F1, F2, F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 3 footnotes
Footnote 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.
Footnote 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 $11.25 to $11.48, 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 set forth in this footnote of this Form 4.
Footnote F3
Includes 109,054 unvested RSUs.