Oprah Winfrey, Reese Witherspoon, Bumble founder Whitney Wolfe Herd join investment in Spanx

Oprah Winfrey, Reese Witherspoon and Bumble founder Whitney Wolfe Herd have joined funds manager Blackstone in investing in Spanx, Inc. “This is an incredible, ‘pinch-me!’ full-circle moment because both Oprah and Reese have been longtime supporters of Spanx, and Whitney has been a gamechanger for women in business,” said Sara Blakely, who founded the shapewear company in 2000 and now serves as executive chairwoman. Other participants include women-founded investment funds G9 Ventures,…