Dyne Therapeutics (DYN)CEO sold ~$48K

~$48K

Approx. value · 4,061 sh @ $11.83

146K

Holds after · shares reported

Traded

Mar 5, 2025

Filed

Mar 7, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Feb 18, 2025Insider · 2 peopleInsiders: 2 sales (~$71K)
2. Mar 5, 2025 · this disclosureInsiderCEO sold ~$48K of DYN shares in the open market

What came next

1. Mar 5, 2025Insider · 3 peopleInsiders: 3 sales (~$40K)
2. Mar 11, 2025Insider · 2 peopleInsiders: 2 sales (~$40K)
3. Mar 13, 2025InsiderOfficer sold ~$1.7K of DYN shares in the open market
4. Jun 5, 2025Insider · 3 peopleInsiders: 3 sales (~$74K)

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Dyne Therapeutics

For Dyne Therapeutics, OQRO holds 1 insider filing (SEC Form 4 or Form 144) and 6 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its DYN page.

Other recent filings by John Cox, CEO & President

• SEC Form 4 at Dyne Therapeutics (DYN)Sep 9, 2025
• SEC Form 4 at Dyne Therapeutics (DYN)Jul 15, 2025
• SEC Form 4 at Dyne Therapeutics (DYN)Jun 6, 2025

The full history of John Cox, CEO & President is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Dyne Therapeutics

• SEC Form 4Oct 7, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026

Everything OQRO holds on this company is on its DYN page.