Kate Manning has left her role as sales and marketing director of Hot Key Books.
Manning confirmed she had left the company to The Bookseller, but would not give any more information.
A spokesperson for Bonnier, which owns Hot Key, would not confirm if Manning had been made redundant, but said her role was “being absorbed into the Bonnier publishing group’s sales force, which is led by Helen Bower”.
Manning joined Hot Key in 2012 from HarperCollins, where she held the post of head of children’s sales. She previously worked for Simon & Schuster, Pan Macmillan, Random House and Waterstones.
Manning's departure is the latest in a string of significant upheavals in its staff at Hot Key Books in recent months. In November, m.d. Sarah Odedina stepped down with immediate effect. She is contracted to the company until the 30th April and is thought to be on gardening leave.
In December, the company said editors at Hot Key Books and Piccadilly Press, which is also owned by Bonnier, would acquire titles across both lists, and last month Jane Harris joined Bonnier as executive director for children's fiction.
Harris is now responsible for all the company's children's fiction output, including Hot Key and Piccadilly Press.