IonQ (IONQ) posted a Q4 diluted loss Wednesday of $0.93 per share, widening from the loss of $0.20 a year earlier.

Two analysts polled by FactSet expected a loss of $0.25.

Revenue in the three months ended Dec. 31 rose to $11.7 million from $6.1 million a year earlier.

Four analysts surveyed by FactSet expected $10.3 million.

The company said its board appointed Niccolo de Masi as chief executive officer, effective immediately. He succeeds Peter Chapman, who remains executive chair.

The company also agreed to acquire a controlling stake in ID Quantique from both the Geneva-based company and SK Telecom for an undisclosed number of IonQ shares.

IonQ, based in College Park, Maryland, also signed a memorandum of understanding for a strategic partnership with South Korea's SK Telecom.

Separately, IonQ announced an at-the-market share offering of up to $500 million.

IonQ shares fell 11% in after-hours trading.