TPG Telecom (ASX:TPG) share price storms higher on insider buying news James Mickleboro | May 12, 2021 3:36pm | More on: In afternoon trade, the telco giant’s shares are up almost 4% to $5.28. Despite this gain, the TPG share price is still down a disappointing 25% since the start of the year. This compares to a 15% gain by arch-rival Telstra Corporation Ltd(ASX: TLS) and a 5% gain by the Why is the TPG share price underperforming? The main catalyst for the weakness in the TPG share price this year was the shock news that its Founder and Chairman, David Teoh, resigned from the company with immediate effect in March.