Richard Chernicoff has resigned as president and COO of Great Elm Capital Group Inc., and as a member of the company's board, effective March 21.

According to a regulatory filing, Chernicoff's resignation was not related to any disagreement with the company or any matter relating to its operations, policies or practices. His departure reduces the board's size to seven members.

The board named Adam Kleinman to succeed Chernicoff as president and COO. Kleinman serves as COO, general counsel and chief compliance officer of Great Elm Capital Management Inc.