News & Press
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(9.2.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Announces Presentations of Additional Fidaxomicin Phase 3 Data at Upcoming ICAAC Annual Meeting

(9.1.2010) SAN DIEGO, CA
Optimer Pharmaceuticals to Present at September 2010 Investor Conferences

(8.19.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Fidaxomicin Marketing Authorization Application Accepted for Review by European Medicines Agency

(8.5.2010) Waltham, MA
In First- and Second-Line Treatment of Clostridium Difficile Infection, Nearly 70 Percent of Surveyed Infectious Disease Specialists and Internists Will Use Fidaxomicin and Nearly Half Will Use CDA1/CDB1

(8.4.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Reports Second Quarter 2010 Financial Results

(7.29.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Submits Fidaxomicin Marketing Authorization Application for the Treatment of Clostridium difficile Infection

(7.28.2010) SAN DIEGO, CA
Optimer Pharmaceuticals to Present at August 2010 Investor Conferences

(7.8.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Receives Milestone Payment from Cempra for Next-Generation Macrolide Antibiotic

(6.1.2010) SAN DIEGO, CA
Optimer Pharmaceuticals to Present at June 2010 Investor Conferences

(5.24.2010) SAN DIEGO, CA
Optimer Pharmaceuticals and Biocon Limited Announce Manufacturing and Supply Agreement for Fidaxomicin

(5.6.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Appoints Pedro Lichtinger as President and CEO to Succeed Michael N. Chang, Ph.D., Who Will Serve as Chairman of the Board

(5.6.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Reports First Quarter 2010 Financial Results

(5.4.2010) SAN DIEGO, CA
Data from Optimers Second Fidaxomicin Phase 3 Study for the Treatment of Clostridium difficile Infection (CDI) Featured in Oral Presentation at Digestive Disease Week

(4.22.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Announces Oral Presentation at Digestive Disease Week (DDW) Featuring Data from the Second Fidaxomicin Phase 3 Trial

(4.10.2010) SAN DIEGO, CA
Positive Results from Optimer Pharmaceuticals Second Phase 3 Study of Fidaxomicin for the Treatment of Clostridium difficile Infection (CDI) Presented at ECCMID

(4.6.2010) SAN DIEGO
Optimer Pharmaceuticals Announces Presentations of Data from the Fidaxomicin Phase 3 Trials at ECCMID

(3.11.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Reports Fourth Quarter and Full Year 2009 Financial Results

(3.3.2010) SAN DIEGO, CA
Optimer Pharmaceuticals to Host Conference Call and Webcast to Discuss Fourth Quarter and Full Year 2009 Financial Results

(3.1.2010) SAN DIEGO, CA
Optimer Pharmaceuticals to Present at the Cowen and Company 30th Annual Health Care Conference

(3.1.2010) SAN DIEGO, CA
Optimer Pharmaceuticals, Inc. Announces Completion of Public Offering of Common Stock

(2.24.2010) SAN DIEGO, CA
Optimer Pharmaceuticals, Inc. Announces Pricing of Public Offering of Common Stock

(2.4.2010) SAN DIEGO, CA
Optimer Pharmaceuticals Announces Positive Results from Second Fidaxomicin Phase 3 Study in Patients with Clostridium Difficile Infection

(3.1.2010) SAN DIEGO, CA

Optimer Pharmaceuticals, Inc. Announces Completion of Public Offering of Common Stock



SAN DIEGO, CA – March 1, 2010 – Optimer Pharmaceuticals, Inc. (NASDAQ: OPTR) today announced the closing of its previously announced public offering of 4,887,500 shares of its common stock, including 637,500 shares sold pursuant to the full exercise of an over-allotment option previously granted to the underwriter. The net proceeds to Optimer from the sale of shares in the offering, after deducting underwriting discounts and commissions, were approximately $51.5 million.
 
Jefferies & Company, Inc. acted as sole book-running manager in the offering.
A registration statement relating to the shares issued in the offering has been filed with, and declared effective by, the Securities and Exchange Commission. A prospectus supplement relating to the offering has been filed with the Securities and Exchange Commission. Copies of the final prospectus supplement and related prospectus may be obtained from Jefferies & Company, Inc., Attention: Syndicate Prospectus Department, 520 Madison Avenue, New York, NY 10022 or at (888) 449-2342. This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of, the shares in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or jurisdiction.
Contact
 
Optimer Pharmaceuticals, Inc.
Christina Donaghy, Corporate Communications Manager
John D. Prunty, Chief Financial Officer & VP Finance
858-909-0736