Individual or corporate investor who intends to take control of a company (often ostensibly for greenmail) by buying a controlling interest in its stock and installing new management. Raiders who accumulate 5% or more of the outstanding shares in the target company must report their purchases to the SEC, the exchange of listing, and the target itself. Bloomberg Financial Dictionary
See: takeover. Bloomberg Financial Dictionary
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raider UK US /ˈreɪdər/ noun [C] STOCK MARKET
► CORPORATE RAIDER(Cf. ↑corporate raider): »
Pennsylvania's tough anti-takeover law is designed to prevent raiders from harming shareholders.
Financial and business terms. 2012.