Shares of Cutera Inc. fell hard after hours on Tuesday after the maker of skincare and body-sculpting devices — currently engulfed in drama over a leadership changeover — reported weaker quarterly results than expected and announced a new interim chief financial officer as well as plans to appoint new board directors.

The company lost $1.26 a share during its first quarter, compared with 84 cents in the same quarter last year, on sales of around $55 million, down from $58 million a year earlier. The results were below FactSet...