Form4insider filings, from the source

Insider · CIK 0001814189

Douglas Kerr

Files at: DYN. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $173k · 3net −$173k
$10k$10k$100k$100k$1M$1MbuyssalesJun 15Jun 28Jul 12Jul 26Aug 8Aug 22Sep 5

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 4, 2026 SForm 4 →Sep 8, 4:14 pm EDTDyne Therapeutics, Inc.DYN5,035$22.95$115,546162,564−3.00%10b5-1
Aug 13, 2026 SForm 4 →Aug 17, 4:08 pm EDTDyne Therapeutics, Inc.DYN1,556$26.28$40,892167,599−0.92%10b5-1
Jun 16, 2026 SForm 4 →Jun 17, 4:08 pm EDTDyne Therapeutics, Inc.DYN887$18.33$16,259169,155−0.52%10b5-1

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.