Rapid7 (RPD) said Monday that it has appointed board member Wael Mohamed as the chief executive officer of the company, effective immediately.

Mohamed succeeds Corey Thomas, who will become the executive chairman of the board, the company said.

The company reaffirmed its Q2 guidance, expecting quarterly adjusted income per diluted share between $0.33 to $0.36 on revenue of $207 million to $209 million. Analysts surveyed by FactSet expect $0.35 and $208.2 million.

For the full year, the company continues to expect adjusted income per diluted share of $1.52 to $1.60 on revenue of $836 million to $842 million. Analysts polled by FactSet expect $1.56 and $838.6 million.

Shares of the company were up 4.4% in Monday premarket activity.