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DYN
NASDAQ Life Sciences

Major Shareholder Atlas Venture Files Intent to Sell Over $1.1M in Dyne Therapeutics Stock

Arie Shkolnikov · Analysis by Wiseek AI
More coverage: Biotech Stocks · Healthcare
Sentiment info
Negative
Importance info
7
Price
$19.21
Mkt Cap
$3.174B
52W Low
$8.01
52W High
$25
52W Position info
140% above low
Off High info
23% below high
Rel. Volume info
1.1× avg
Market data snapshot near publication time

DYN has more than doubled off its 52-week low of $8.01.

Summary

Atlas Venture Opportunity Fund I, LP, a significant shareholder, has filed a Form 144 indicating its intent to sell 56,820 shares of Dyne Therapeutics common stock, valued at approximately $1.14 million.


Key Events · Ownership and Investor Activity · DYN

  • Intent to Sell Shares

    Atlas Venture Opportunity Fund I, LP filed a Form 144 to sell 56,820 shares of common stock, valued at approximately $1,137,536.40.

  • Ongoing Shareholder Distribution

    This filing is part of a broader pattern of share sales by the Atlas Venture group, which has sold over $24 million in Dyne Therapeutics stock in the last 90 days.

  • Filer Relationship

    The filer, Atlas Venture Opportunity Fund I, LP, is a significant shareholder of Dyne Therapeutics.


Analysis · DYN · Life Sciences

This Form 144 filing signals a continued distribution of shares by the Atlas Venture group, which has been actively selling Dyne Therapeutics stock, totaling over $24 million in the past 90 days. The proposed sale of $1.14 million by Atlas Venture Opportunity Fund I, LP, follows recent sales by the same entity and other related Atlas Venture funds, indicating an ongoing reduction of their stake. While not an operational insider, a major institutional shareholder's consistent selling can create an overhang on the stock, suggesting a lack of conviction or a need for liquidity. Investors should monitor further sales from this group.

At the time of this filing, DYN was trading at $19.21 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $3.2B. The 52-week trading range was $8.01 to $25.00. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.

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DYN - Latest Insights

DYN
Jul 22, 2026, 5:21 PM EDT
Filing Type: 424B5
Importance Score:
8
Price at Filing: $23.21
Real-time Price: $23.90 info
Change: +$0.690 (+3%) info
Market Cap: $4.493B info
DYN
Jul 22, 2026, 5:19 PM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $23.21
Real-time Price: $23.90 info
Change: +$0.690 (+3%) info
Market Cap: $4.493B info
DYN
Jul 21, 2026, 10:48 PM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $21.30
Real-time Price: $23.90 info
Change: +$2.60 (+12%) info
Market Cap: $4.493B info
DYN
Jul 21, 2026, 5:22 PM EDT
Filing Type: 424B5
Importance Score:
8
Price at Filing: $21.25
Real-time Price: $23.90 info
Change: +$2.65 (+12%) info
Market Cap: $4.493B info
DYN
Jul 21, 2026, 4:48 PM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $22.50
Real-time Price: $23.90 info
Change: +$1.40 (+6%) info
Market Cap: $4.493B info