MasTec is trading at $175.19, up 10.22%, as investors respond to its decision to suspend late-stage negotiations for a large potential acquisition and prioritize share repurchases. - The announcement was made November 5; negotiations could resume later. - The full $250 million repurchase authorization remains available, but MasTec did not commit to buying a specific amount. - The session was mixed. The live move was reported at 3:34 p.m. EST on November 6; no volume data was provided.