A stock warrant represents the right to purchase a company's stock at a specific price and at a specific date. A stock warrant is issued directly by a company to an investor. Stock options are purchased when it is believed the price of a stock will go up or down. COMMON STOCK WARRANT AGREEMENT (this “Agreement”), dated as of between MANNKIND CORPORATION, a Delaware corporation (the “Company”) and , a [corporation] [national banking association] organized and existing under the laws of and having a corporate trust office in , as warrant agent (the “Warrant Agent”). The Stock purchase agreement is made only on the current stocks. The warrant on the other hand changes and helps work on the security in the future. The warrant on the other hand changes and helps work on the security in the future.