Yu sold one million DITO shares at P18 each on February 15.
The chairman of the Auto Nation Group, the local dealer of Mercedes Benz, has so far sold seven million DITO shares since January 25.
Yu has P417 million worth of DITO shares under his name.
DITO is the holding company of the third telco owned by bilyonaryo Dennis Uy and China Telecom.
At current market prices, DITO has a market cap of P50.74 billion.