Loomis, Sayles & Company L.P. is an American investment management firm based in Boston. As of December 31, 2023, Loomis Sayles has roughly US $335 billion in assets under management.
Loomis Sayles was founded in 1926 by Robert H. Loomis and Ralph T. Sayles. In 2000, it was acquired by Natixis Global Asset Management. From Wikipedia