209,523-share increase in Dyne Therapeutics; estimated transaction value $3.97 million (based on quarterly average pricing)
Quarter-end position in Dyne Therapeutics rose $12.82 million in value, reflecting both trading and stock price movement
Transaction represented a 0.55% change relative to Palo Alto Investors’ 13F AUM
Fund now holds 1,472,197 shares in the company, worth $28.80 million as of December 31, 2025
Stake is 4.01% of reported AUM, which places it outside the fund's top five holdings
Palo Alto Investors LP disclosed an increase of 209,523 shares in Dyne Therapeutics (NASDAQ:DYN) in its 13F filing for the quarter ended December 31, 2025, an estimated $3.97 million trade based on quarterly average pricing.
Palo Alto Investors LP reported an increase of 209,523 shares in Dyne Therapeutics according to an SEC filing dated February 17, 2026. The estimated value of this trade was $3.97 million, calculated using the average closing price for the quarter. The fund’s quarter-end position in the company increased in value by $12.82 million, a figure that includes both additional shares and price appreciation.
Palo Alto Investors LP’s buy lifts its Dyne Therapeutics stake to 4.01% of reported 13F AUM.
Top five holdings after the filing:
As of February 17, 2026, shares of Dyne Therapeutics were priced at $15.28; one-year total return was 10.9%, underperforming the S&P 500 by 2.07 percentage points.
| Metric | Value |
|---|---|
| Price (as of market close 2026-02-17) | $15.28 |
| Market capitalization | $2.50 billion |
| Net income (TTM) | ($423.80 million) |
| One-year price change | 10.89% |
Dyne Therapeutics, Inc. is a clinical-stage biotechnology company specializing in the development of innovative therapies for genetically defined muscle diseases. The company leverages its FORCE platform to address unmet medical needs in rare neuromuscular disorders, aiming to deliver disease-modifying treatments. Dyne's focused pipeline and proprietary delivery technology position it to compete in the rare disease therapeutics segment.
Palo Alto Investors, a California-based independent investment firm, recently disclosed the purchase of approximately 209,000 shares of Dyne Therapeutics, a biotech stock.
To start, for many retail investors, investing in individual biotech stocks can be a challenge. Due to the nature of the industry, much of the success or failure of stocks in the biotech sector relies on the development of new drugs, paired with successful clinical trials. As a result, biotech stocks can be quite volatile, particularly around the release of trial data.
Therefore, many retail investors may choose to invest in one of the many exchange-traded funds (ETFs) that focus on the biotech sector. ETFs such as iShares Biotechnology ETF (NASDAQ:IBB), SPDR S&P Biotech ETF (NYSEMKT:XBI), and Ark Genomic Revolution ETF (NYSEMKT:ARKG) give average investors a way to gain exposure to the sector without having to stay up-to-date on the ups and downs of individual companies.
Before you buy stock in Dyne Therapeutics, consider this:
The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and Dyne Therapeutics wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years.
Consider when Netflix made this list on December 17, 2004... if you invested $1,000 at the time of our recommendation, you’d have $519,015!* Or when Nvidia made this list on April 15, 2005... if you invested $1,000 at the time of our recommendation, you’d have $1,086,211!*
Now, it’s worth noting Stock Advisor’s total average return is 941% — a market-crushing outperformance compared to 194% for the S&P 500. Don't miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors.
See the 10 stocks »
*Stock Advisor returns as of March 2, 2026.
Jake Lerch has no position in any of the stocks mentioned. The Motley Fool recommends BioMarin Pharmaceutical and SPDR Series Trust - SPDR S&P Biotech ETF. The Motley Fool has a disclosure policy.