Optimer Pharmaceuticals, Inc. Reports Inducement Grants Under NASDAQ Listing Rule 5635(c)(4)

SAN DIEGO, Jan. 3, 2012 /PRNewswire/ -- Optimer Pharmaceuticals, Inc. (NASDAQ: OPTR) announced today that on December 22, 2011 the Compensation Committee of its Board of Directors approved the grant of inducement stock options to purchase an aggregate of 39,625 shares of common stock to 4 new employees.

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Each stock option has an exercise price per share equal to $12.24 the fair market value on December 30, 2011, and vests over four years, with 25% of the shares vesting on the one-year anniversary of the applicable vesting commencement date and 1/48 of the shares vesting monthly thereafter, subject to the new employee’s continued service relationship with the Company. Each stock option was effective as of December 30, 2011, and also has a ten year term and is subject to the terms and conditions of the Company’s 2006 Equity Incentive Plan and the stock option agreement pursuant to which the option was granted.

The stock options were granted as inducements material to the new employees entering into employment with Optimer in accordance with NASDAQ Listing Rule 5635(c)(4).

About Optimer Pharmaceuticals
Optimer Pharmaceuticals, Inc. is a global biopharmaceutical company focused on discovering, developing and commercializing innovative hospital specialty products that have a positive impact on society. Optimer developed and commercialized DIFICID® (fidaxomicin) tablets, an FDA-approved antibacterial drug for the treatment of adult patients with Clostridium difficile-associated diarrhea (CDAD). Optimer has also received marketing authorization for fidaxomicin tablets in the European Union under the trade name DIFICLIR. The company is seeking marketing authorization for fidaxomicin in Canada and is exploring marketing authorization in other parts of the world where C. difficile has emerged as a serious health problem, including Asia. Additional information can be found at http://www.optimerpharma.com.

Contacts

Optimer Pharmaceuticals, Inc.
David Walsey, VP of Investor Relations and Corporate Communications
858-909-0736

Canale Communications
Jason I. Spark, Senior Vice President
619-849-6005

SOURCE Optimer Pharmaceuticals, Inc.

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