Director Jason Rhodes Sells $65.2M in Dyne Stock via 10b5-1 Plan
DYN has more than doubled off its 52-week low of $11.645.
Summary
Director Jason Rhodes sold $65.2 million of Dyne Therapeutics stock under a pre-arranged 10b5-1 trading plan, reducing his indirect holdings while retaining a substantial position.
Key Events · Ownership and Investor Activity · DYN
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Director Sells $65.2M in Stock
Jason P. Rhodes sold 2,586,928 shares for $65,184,894.40 on August 13-14, 2026, at prices ranging from $25.00 to $26.20 per share.
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10b5-1 Plan Execution
The sales were executed under a Rule 10b5-1 trading plan adopted on July 13, 2026, indicating the transactions were pre-planned rather than discretionary.
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Post-Sale Holdings
Rhodes retains 3,801,128 shares indirectly through various Atlas Venture funds, representing a substantial ongoing stake in the company.
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Near 52-Week High
The sales occurred with the stock trading near its 52-week high of $27.31, suggesting the insider capitalized on recent price strength.
Analysis · DYN · Life Sciences
A significant insider sale at Dyne Therapeutics has just been disclosed. Director Jason P. Rhodes sold 2,586,928 shares for $65.2 million on August 13-14, 2026, under a pre-arranged Rule 10b5-1 trading plan adopted July 13, 2026. The transactions occurred near the stock's 52-week high of $27.31, with prices ranging from $25.00 to $26.20. While the sales are substantial, they were executed under a pre-planned trading arrangement, which reduces the signal of insider conviction. Rhodes retains 3,801,128 shares, indicating a continued stake. The company recently completed a $375 million follow-on offering and received FDA Priority Review for its lead candidate, providing context for the stock's strength.
At the time of this filing, DYN was trading at $26.15 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $4.9B. The 52-week trading range was $11.65 to $27.31. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.