Buy Back
Company buy's back it's shares to boost promoter holdings to be greater than the bid offer
White Knight
Another company does a friendly takeover to block the hostile takeover from going through. In such a scenario, the management of the target does not change
Pac-Man
Target firm tries to preserve itself by making a counter offer and threatening to purchase the hostile company
Shark Repellant
Special amendments made to legal character in order to prevent BoD from losing control of the corporation
Golden Parachute
Considerable benefits are provided to the executive staff of the target company in order to ensure their 'soft landing' in the event that the company is taken over
How does this thwart a takeover?
Crown Jewel Strategy
Target making itself less appealing by selling off it's most valuable asset, maybe used in conjunction with the White Knight.
Poison Pill
Targeted firm dilutes it's shares to the point that a hostile bidder cannot secure a controlling share without incurring significant costs. This strategy is restricted in many jurisdictions.