KCG Holdings Inc.'s board appointed Peter Fisher, Colin Smith, Heather Tookes and Adrian Weller as independent directors, effective immediately.
Fisher is senior fellow and senior lecturer at the Center for Business, Government & Society at the Tuck School of Business at Dartmouth College. He also worked at BlackRock Inc. from 2004 to 2013.
Smith is managing partner of Silver Mountain Partners, a private investment partnership he has managed since 2012, which focused on investments in alternative strategies.
Tookes is a member of the finance faculty of the Yale School of Management.
Weller is a senior research fellow in the machine learning group at the University of Cambridge, a faculty fellow at the Alan Turing Institute for data science and an executive fellow at the Leverhulme Centre for the future of intelligence.
Rene Kern and John Morris do not plan to seek re-election at the upcoming annual stockholder meeting.
KCG also said its board approved a repurchase program to buy back up to $150 million of class A common shares and warrants to purchase common stock. The new plan replaces and supersedes all previous authorizations.