Guyasuta Investment Advisors Inc. lessened its position in Pfizer Inc. (NYSE:PFE – Free Report) by 69.6% during the 4th quarter, according to the company in its most recent disclosure with the Securities and Exchange Commission (SEC). The institutional investor owned 272,041 shares of the biopharmaceutical company’s stock after selling 622,742 shares during the quarter. Guyasuta […]