The vice chairman and director bought a total of four million shares at a price range of P24.70 to P25 from March 15 to 18.
AP closed at P23.95 on March 22, down by 21 percent from its 52-week high of P30.35 in June 2020.
AP profits plunged by 25 percent to P12.5 billion due to weak power demand brought about by the pandemic.