Joshua T. Brumm sold $730K of DYN

sold $729.63k of DYN

38,301 shares @ $19.05

Decreased holdings by -6.10%

13th largest trade (out of 84)

Cluster BuyPositive 90D History

Trade made by an officer

Part of a cluster of 8 transactions by 5 insiders

10b5-1 scheduled trade

63% win rate · +14.8% median edge vs SPY (16 trades, 90-day · small sample)

Price 78% above 200-day moving average

Small Cap stock — insider trades carry more weight

DYNDyne Therapeutics, Inc.

HealthcareBiotechnology

1D0.00%

1W+10.17%

1M+35.39%

3M+25.72%

6M—

1Y—

Recent insider activity at DYN