An individual or entity attempting to acquire enough equity in a Target company to assume a controlling interest, usually through a hostile takeover Bid. Such an Interest allows the Raider to replace the existing management with his Own representatives, completing the takeover. A Raider would typically Target a company with undervalued Asset, which would be relatively inexpensive to take over. Once the Raider has accumulated 5% of the shares in a company, he/she must report this fact to the SEC and the Target company.