The acquisition of a 9.9% stake by a single investor, especially an investment firm like Avidity Partners, is typically seen as a strong vote of confidence in the company's prospects. This level of ownership can also grant Avidity Partners significant influence over corporate decisions, which may be viewed positively by the market if the firm is known for adding value to its investments. The news is likely to be seen as a positive development for DNTH in the short term, potentially leading to an increase in stock price.