| Poison pill |
Rights plan dilutes bidder if ownership crosses threshold. |
Raises effective acquisition cost; disrupts voting power. |
| White knight |
Seek a friendlier acquirer or strategic alliance. |
Blocks bidder; reframes deal under national-interest narrative. |
| Staggered board |
Only a subset of directors elected each year. |
Delays control even if shares are accumulated. |
| Golden parachute |
Large severance packages for executives. |
Increases transaction costs; deters leadership replacement. |
| Dual-class / voting control |
Control retained through super-voting shares (if applicable/feasible). |
Bidder can buy economic ownership without control. |
| Legal/regulatory strategy |
National security / export-control / supply chain scrutiny. |
Raises probability of a block or heavy mitigation. |
| Pac-Man |
Target counter-bids for bidder (or strategic stake). |
Creates financial and strategic chaos; increases cost. |
| Crown jewel |
Threaten to spin/sell prized assets. |
Makes target less attractive or harder to control. |
| Greenmail |
Buy back bidder’s stake at a premium to end threat. |
Stops takeover quickly (but costly and controversial). |