SEC Form 4Coverage since May 26, 2026
$DYN insider trading
Over the last 12 months, Dyne Therapeutics insiders reported 3 buys totaling $114K and 10 sales totaling $48.2M across SEC Form 4 filings. 69% of the activity was filed under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- $114K 3 events
- Sold · 12m
- $48.2M 10 events
- Events · 12m
- 13 Form 4 filings, grouped
- Insiders · 12m
- 7 distinct reporters
- 10b5-1 share
- 69% pre-arranged plans
Side
Price · $DYN · 12Mvia TradingView
Top insiders · 12m
Posner Brian S—3× · $114K
Kersten Dirk—3× · $13.8M
Rhodes Jason P—3× · $34.2M
Friedl-Naderer JohannaChief Commercial Officer1× · $3K
Kerr DouglasChief Medical Officer1× · $16K
All insider trades
13 events
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jul 27, 2026 | Kersten DirkD | ▼ Sale | 261,460 | $25.51 | $6.7M | -6.8% | plan · 2 tranches · indirect |
| Jul 7, 2026 | Rhodes Jason PD | ▼ Sale | 777,451 | $22.97 | $17.9M | -99.6% | plan · 10 tranches · indirect |
| Jun 29, 2026 | Rhodes Jason PD | ▼ Sale | 504,695 | $21.23 | $10.7M | -34.1% | plan · 6 tranches · indirect |
| Jun 25, 2026 | Lucera ErickChief Financial Officer · O | ▼ Sale | 2,362 | $20.37 | $48K | -1.9% | — |
| Jun 25, 2026 | Rhodes Jason PD | ▼ Sale | 267,760 | $21.09 | $5.6M | -19.9% | plan · 9 tranches · indirect |
| Jun 23, 2026 | Kersten DirkD | ▼ Sale | 263,962 | $20.7 | $5.5M | -6.4% | plan · 3 tranches · indirect |
| Jun 18, 2026 | Kersten DirkD | ▼ Sale | 84,355 | $20.1 | $1.7M | -2% | plan · 2 tranches · indirect |
| Jun 16, 2026 | Friedl-Naderer JohannaChief Commercial Officer · O | ▼ Sale | 145 | $18.33 | $3K | -0.1% | plan |
| Jun 16, 2026 | Kerr DouglasChief Medical Officer · O | ▼ Sale | 887 | $18.33 | $16K | -0.5% | plan |
| Jun 16, 2026 | Cox JohnCEO & President · O·D | ▼ Sale | 2,683 | $18.33 | $49K | -0.7% | plan |
| Jun 8, 2026 | Posner Brian SD | ▲ Buy | 2,000 | $16.94 | $34K | +8.9% | — |
| Jun 3, 2026 | Posner Brian SD | ▲ Buy | 2,500 | $17.48 | $44K | +12.5% | — |
| May 26, 2026 | Posner Brian SD | ▲ Buy | 2,000 | $18.21 | $36K | +11.1% | — |
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $DYN feed.