Trico Bancshares has filed for a mixed shelf offering, which allows the company to issue various types of securities over a specified period. The size of the offering has not been disclosed, making it difficult to predict the exact impact on the stock price. However, mixed shelf offerings can lead to dilution of existing shares, which may negatively affect the stock price. On the other hand, the additional capital raised could be used for growth opportunities, potentially benefiting the stock price. Due to the uncertainty surrounding the size and use of proceeds, the short-term impact on TCBK's stock price is neutral.