Brian Tierney, FirstEnergy CEO, joins CNBC's 'Money Movers' to discuss the company's most recent earnings, expectations for ...

Brian Tierney apologised earlier this year after it emerged he had provided the reference for Kielan Mooney, which he later ...

Brian Tierney, a former mayor of Derry City and Strabane District Council and senior staff member in Foyle MP Colum Eastwood’s office, apologised after making what he described as a “huge ...

Brian Tierney was suspended by the SDLP after providing a character reference for a man later jailed for rape.

FirstEnergy faces little direct exposure to the Trump administration’s tariffs on foreign imports, said Brian Tierney, FirstEnergy chair, president and CEO, during a Thursday earnings call.

A councillor who provided a court reference for a former Irish soldier who was later jailed for raping a woman in a Dublin hotel has been reinstated. Brian Tierney resigned the party whip and the SDLP ...

Tierney highlighted a substantial $1 billion investment through the Energize 365 Capital program in Q1, a 15% increase compared to the prior year. The company plans to invest $5 billion in 2025 and ...