If you're a private investor in a company, you're known as a subscriber. A Subscription Agreement is a promise by the company to sell a given number of shares to an investor at a certain price, and an agreement by the investor to pay that price. If you own a company and have promised to sell a certain amount of stocks to an investor at a specific price, you should nail down the details with a Subscription Agreement. 
Make document: Subscription Agreement
Available from: RocketLawyer.com
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