Investor FAQs

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AMPH, which is traded on the NASDAQ stock exchange

June 25, 2014

Amphastar's headquarters are located at
11570 Sixth St.
Rancho Cucamonga,
CA 91370
Phone: 800.423.4136

Amphastar was incorporated in 1996.

Amphastar is incorporated in the state of Delaware. 

Ernst & Young

1981 Marcus Avenue
Lake Success, NY 11042
Phone: 800.353.010

Questions regarding stock transfer requirements, lost certificates and change of address should be directed to the transfer agent as listed.

As of March 31, 2014, Amphastar had 1,217 employees.

No, Amphastar does not offer a direct stock purchase plan. Shares can be purchased through a stockbroker of your choice.

December 31

Amphastar's Investor Relations department is happy to answer any shareholder questions. The number to contact Investor Relations is [TBD].

Requests for filings with the U.S Securities and Exchange Commission should be directed to Investor Relations at our address and phone number. SEC filings are also available on our website at


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