NEW YORK, May 22, 2017 -- Pomerantz LLP announces that a class action lawsuit has been filed against Puma Biotechnology, Inc. (“Puma” or the “Company”) (NASDAQ:PBYI) and certain of its officers. The class action, filed in United States District Court, Central District of California, and docketed under 17-cv-03455, is on behalf of a class consisting of investors who purchased or otherwise acquired Puma securities, seeking to recover compensable damages caused by defendants’ violations of the Securities Exchange Act of 1934.
If you are a shareholder who purchased Puma securities between February 29, 2016 and May 4, 2017, both dates inclusive, you have until July 7, 2017 to ask the Court to appoint you as Lead Plaintiff for the class. A copy of the Complaint can be obtained at www.pomerantzlaw.com. To discuss this action, contact Robert S. Willoughby at [email protected] 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]
Puma Biotechnology, Inc. is a development-stage pharmaceutical company that is primarily focused on acquiring and developing drug products. At all relevant times, Puma’s primary focus has been the development of the drug PB272 (“neratinib”). Neratinib was initially developed by the pharmaceutical companies Wyeth and Pfizer Inc. (“Pfizer”), and Puma acquired the rights to license the drug in 2011.
Complaint alleges that throughout the Class Period, Defendants made materially false and misleading statements regarding the Company’s business, operational and compliance policies. Specifically, Defendants made false and/or misleading statements and/or failed to disclose that: (i) the Company did not anticipate that the U.S. Food and Drug Administration’s (“FDA”) would ultimately approve neratinib for the treatment of breast cancer; (ii) as such, Puma had overstated the drug’s approval prospects and/or commercial viability; and (iii) as a result, Puma’s public statements were materially false and misleading at all relevant times.
On May 4, 2017, post-market, Puma disclosed the resignation of Dr. Robert Charnas, the Company’s Senior Vice President, Regulatory Affairs, citing “health reasons.” Dr. Charnas’ resignation will be effective as of May 15, 2017, nine days before the FDA scheduled review of Puma’s breast cancer drug neratinib on May 24. On this news, Puma’s share price fell $5.85, or 16.01%, to close at $30.70 on May 5, 2017.
On May 5, 2017, Fox Business published an online article entitled “Why Puma Biotechnology Shares are Crashing 18.2% Today.”
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 www.pomerantzlaw.com
CONTACT: Robert S. Willoughby Pomerantz LLP [email protected]


NVIDIA, Microsoft, and Amazon Eye Massive OpenAI Investment Amid $100B Funding Push
SoftBank Shares Surge as It Eyes Up to $30 Billion New Investment in OpenAI
C3.ai in Merger Talks With Automation Anywhere as AI Software Industry Sees Consolidation
Google Disrupts Major Residential Proxy Network IPIDEA
UK Politicians Call for Full Competition Review of Netflix’s Warner Bros Discovery Deal
Microsoft AI Spending Surge Sparks Investor Jitters Despite Solid Azure Growth
The Maire - EuroChem Case: Three Lessons for Global Business
Climate Adaptation at Home: How Irrigreen Makes Conservation Effortless
China Approves First Import Batch of Nvidia H200 AI Chips Amid Strategic Shift
ASML’s EUV Monopoly Powers the Global AI Chip Boom
Meta Stock Surges After Q4 2025 Earnings Beat and Strong Q1 2026 Revenue Outlook Despite Higher Capex
Anthropic Raises 2026 Revenue Outlook by 20% but Delays Path to Profitability
Toyota Retains Global Auto Sales Crown in 2025 With Record 11.3 Million Vehicles Sold
First Abu Dhabi Bank Reports 22% Jump in Q4 Profit, Beats Market Expectations
Alibaba-Backed Moonshot AI Unveils Kimi K2.5 to Challenge China’s AI Rivals
Puma’s Historic Rivalry With Adidas Enters a New Era as Anta Deal Signals Turnaround Push 



