Activist investor Elliott Management said on Friday it has invested more than $1.5 billion in Aspen Technology, opposing the company's decision to accept Emerson Electric's $7.2 billion tender offer.

WEST PALM BEACH - Elliott Investment Management L.P., managing funds worth over $1.5 billion in Aspen Technology, Inc. (NASDAQ: NASDAQ:AZPN), today expressed its opposition to the tender offer made by ...