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SHAREHOLDER ALERT: Pomerantz Law Firm Announces the Filing of a Class Action against Arrowhead Pharmaceuticals, Inc. and Certain Officers – ARWR

NEW YORK, Jan. 13, 2017 (GLOBE NEWSWIRE) -- Pomerantz LLP announces that a class action lawsuit has been filed against Arrowhead Pharmaceuticals, Inc. (“Arrowhead” or the “Company”) (NASDAQ: ARWR) and certain of its officers.  The class action, filed in the United States District Court, Central District of California, and docketed under 17-cv-00310, is on behalf of a class consisting of all persons or entities who purchased or otherwise acquired Arrowhead securities between January 12, 2015 and November 29, 2016, both dates inclusive (the “Class Period”), seeking to recover compensable damages caused by defendants’ violations of the Securities Exchange Act of 1934.

If you are a shareholder who purchased Arrowhead securities during the Class Period, you have until January 17, 2017 to ask the Court to appoint you as Lead Plaintiff for the class.  A copy of the Complaint can be obtained at  To discuss this action, contact Robert S. Willoughby at or 888.476.6529 (or 888.4-POMLAW), toll free, ext. 9980. Those who inquire by e-mail are encouraged to include their mailing address, telephone number, and number of shares purchased. 

[Click here to join this class action]

Arrowhead, a biopharmaceutical company, develops novel drugs to treat intractable diseases in the United States. Among the Company’s products under development at all relevant times was ARC-520, an RNAi-based therapeutic in Phase IIb clinical efficacy studies to treat chronic hepatitis B virus infection.

The Complaint alleges that throughout the Class Period, Defendants made materially false and/or misleading statements, as well as failed to disclose material adverse facts about the Company’s business, operations, and prospects.  Specifically, Defendants made false and/or misleading statements and/or failed to disclose that: (i) ARC-520 was fatal at certain doses; (ii) consequently, the U.S. Food & Drug Administration (“FDA”) was unlikely to approve ARC-520 as a hepatitis B treatment; (iii) Arrowhead had overstated the approval prospects and commercial viability of ARC-520; and (iv) as a result, Arrowhead’s public statements were materially false and misleading at all relevant times.

On November 8, 2016, post-market, Arrowhead issued a press release announcing that the FDA would be placing a clinical hold on the Company’s Heparc-2004 clinical study of ARC-520, likely due to deaths at the highest dose of an ongoing non-human primate toxicology study.

On this news, Arrowhead’s share price fell $1.91, or 31.26%, to close at $4.20 on November 9, 2016.

On November 29, 2016, post-market, Arrowhead announced that it will “discontinue development of clinical stage drug candidates ARC-520, ARC-521, and ARC-AAT” and cut its workforce by approximately 30%.

On this news, Arrowhead’s share price fell $2.95, or 67.2%, to close at $1.44 on November 30, 2016.

The Pomerantz Firm, with offices in New York, Chicago, Florida, and Los Angeles, is acknowledged as one of the premier firms in the areas of corporate, securities, and antitrust class litigation. Founded by the late Abraham L. Pomerantz, known as the dean of the class action bar, the Pomerantz Firm pioneered the field of securities class actions. Today, more than 80 years later, the Pomerantz Firm continues in the tradition he established, fighting for the rights of the victims of securities fraud, breaches of fiduciary duty, and corporate misconduct. The Firm has recovered numerous multimillion-dollar damages awards on behalf of class members. See

Robert S. Willoughby
Pomerantz LLP

/EIN News/ --

Distribution channels: Consumer Goods, Law