i'm not sure why they need it, but another $200 million of dilution could be on the way:

Silver Standard Resources Inc. (TSX:SSO - News)(NASDAQ:SSRI - News) has filed an amended and restated short form base shelf prospectus with the securities commissions in each of the provinces of Canada, other than Quebec, and a corresponding registration statement with the United States Securities and Exchange Commission under the U.S.-Canada multi-jurisdictional disclosure system. These filings allow the company to make offerings of common shares to potential purchasers in each of the provinces of Canada, other than Quebec, and the United States for additional proceeds of up to US$200 million over the 25-month period beginning February 18, 2009, the filing date of the original base shelf prospectus. With the increase of US$200 million, the amended and restated base shelf prospectus now allows for proceeds of up to US$350 million in aggregate, which includes proceeds of US$149,999,993 from previously issued common shares.

http://finance.yahoo.com/news/Silver-Standard-Files-Amended-iw-2941106754.html?x=0&.v=1