Simpson Thacher is representing Japan’s Monex Group, Inc. in connection with its acquisition of TradeStation Group, Inc. in a transaction valued at $411 million. TradeStation Group is an online brokerage firm based in the United States. Monex Group is a pioneer among online brokerage firms in Japan.

Pursuant to the terms of the merger agreement, a subsidiary of Monex Group will acquire all of the common stock of TradeStation through a cash tender offer followed by a merger. Completion of the transaction is subject to customary closing conditions, including the receipt of required regulatory approvals.

The Simpson Thacher team includes Ellen Patterson, Sayo Kondo and Lauren Colasacco in New York and David Sneider, Sam Porter and Ikuko Horikawa in Tokyo (M&A); Andrea Wahlquist, Stephanie Mash and David Cheng (Executive Compensation and Employee Benefits); Marcela Robledo and Parijat Sharma (IP); Gary Mandel, Jonathan Goldstein, Danny Salinas and Adam Wells (Tax); Scott Dyer and Julie Levy (Labor); Peter Thomas, Brijesh Dave and Gabe Rottman (CFIUS); and Michael Naughton (Antitrust).