Citing family reasons, Mark Allin has resigned as CEO of John Wiley & Sons, effective immediately. Matthew Kissner, chairman of the board, has been named interim CEO. A search has also begun for Allin’s successor.

Allin worked at Wiley for 16 years, joining the company with its purchase of Capstone Publishing, a U.K. based publisher he founded in 2000. He went on to serve as managing director of Wiley Asia and senior v-p Asia-Pacific, before being promoted to executive v-p of professional development in 2010. In 2015 he was named chief operating officer and, following that, he was promoted to president and CEO.

During his tenure at Wiley, Allin helped oversee the company's transition from an educational and professional publisher to a global research and learning company.

“The board is thankful for Mark’s years of service and leadership,” said Kissner in a statement. “We understand and support his decision to step down for family reasons and are grateful for his many accomplishments. I am confident that working with John Kritzmacher, our CFO and executive v-p, technology and operations and Wiley’s executive leadership team, the company will enjoy continued success in the future.”