This cluster is too small to warrant a trading response. Monitor for any C-suite selling or a cluster exceeding 0.5% of market cap, which would carry more signal. The broader 30-day insider selling trend ($13.2M) is worth watching, but this specific filing is noise.
Price Chart
Executive Summary
Two Dyne Therapeutics directors, Jason Rhodes and Dirk Kersten, sold a combined $423K in open-market stock over a 2-day window (April 22-23, 2026). The sales represent approximately 0.014% of the company's $3.0B market cap — a trivial amount with no material economic signal. This follows a larger cluster of director sales totaling $4.97M over the prior week, but the current cluster is too small to indicate a change in outlook.
Key Financial Metrics
Key Facts
- Two directors sold a combined $423K in open-market transactions
- Sales represent ~0.014% of DYN's $3.0B market cap
- Director Jason Rhodes sold $370K; Director Dirk Kersten sold $53K
- All transactions were open-market sales (code S)
- No C-suite executives traded in this cluster
Financial Impact
Total insider sales of $423K, or 0.014% of market cap — economically negligible
Risk Factors
- Insider selling trend could accelerate if upcoming clinical data disappoints
- Director selling may precede negative news, though current amounts are trivial
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-DYN-1777328162648 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 17, 2026 6w ago | Insider Cluster | $26.15 $17.90 | ▲ +31.55% | ▲ +29.57% | $15.20 (+41.87%) |
Aug 14, 2026 6w ago | 144 | $26.15 $18.52 | ▼ −29.18% | ▼ −27.65% | $15.20 (−41.87%) |
Aug 13, 2026 7w ago | 144 | $25.70 $18.52 | ▲ +27.94% | ▲ +25.95% | $15.20 (+40.86%) |
Aug 13, 2026 7w ago | 144 | $25.70 $18.52 | ▼ −27.94% | ▼ −25.95% | $15.20 (−40.86%) |
Aug 13, 2026 7w ago | 144 | $25.70 $18.52 | ▼ −27.94% | ▼ −25.95% | $15.20 (−40.86%) |
Jul 29, 2026 9w ago | Press Release | $25.73 $26.09 | ▲ +1.40% | ▼ −2.57% | $15.20 (−40.92%) |
Jul 22, 2026 10w ago | Press Release | $23.21 $26.78 | ▼ −15.38% | ▼ −12.48% | $15.20 (+34.51%) |
Jul 20, 2026 10w ago | 8-K | $23.45 $26.15 | ▲ +11.51% | ▲ +7.39% | $15.20 (−35.18%) |
Jun 30, 2026 13w ago | Insider Cluster | $21.79 $25.10 | ▲ +15.19% | ▲ +17.38% | $15.20 (−30.24%) |
Jun 29, 2026 13w ago | 144 | $22.21 $25.63 | ▼ −15.40% | ▼ −16.43% | $15.20 (+31.56%) |
US Market Status
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