Super-Voting Stock

Super-voting stock owners have super(voting)powers that other stockholders don't.

This type of stock is sometimes used when owners have founded a company and want to have more voting rights than their shares would allow. It can also be used when a group of people think their vote will better protect the company. 

Example

Super-voting stock might be structured so that the founder who owns 20% of a company might have 5 to 1 super voting stock, in which case that founder's 20% economic share gets treated as if it's 100 votes against the 1 vote for 1 normal share owned by everyone else.

Translation: The founder can't be fired by the board. 

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