Seattle Genetics Reports Second Quarter 2012 Financial Results

Seattle Genetics Reports Second Quarter 2012 Financial Results

<0> Seattle GeneticsInvestors:Peggy Pinkston, 425-527-4160orMedia:Tricia Larson, 425-527-4180 </0>

(Nasdaq: SGEN) today reported financial results for the second quarter ended June 30, 2012. The company also highlighted progress with ADCETRIS (brentuximab vedotin) commercialization activities, ongoing and planned clinical trials and upcoming milestones.

“As the leader in developing antibody-drug conjugate therapies, we along with our many collaborators are using our technology to change the way cancer is treated,” said Clay B. Siegall, Ph.D., President and Chief Executive Officer at Seattle Genetics. “We remain focused on making ADCETRIS available to patients, and we are delivering on this priority both through continued commercial initiatives for patients in the labeled indications, as well as through our robust clinical development of ADCETRIS in earlier lines of therapy and other CD30-positive malignancies. We are also focused on advancing our robust pipeline of ADC candidates and leveraging our ADC technology in collaborations to further advance the treatment of cancer.”

Revenues in the second quarter of 2012 were $48.8 million, compared to $13.1 million in the second quarter of 2011. Revenues for the six month period ended June 30, 2012 were $97.1 million, compared to $25.2 million in 2011. Revenues in 2012 include ADCETRIS net product sales of $34.7 million in the second quarter and $69.2 million for the year to date. Second quarter revenues in 2012 include ADCETRIS royalty revenues of $1.2 million related to sales of ADCETRIS by Millennium under its international named patient program. Revenues also reflect amounts earned under the company’s ADCETRIS and ADC collaborations, which increased approximately 6 percent for the year-to-date in 2012 compared to 2011.

Total costs and expenses for the second quarter of 2012 were $66.1 million, compared to $64.8 million for the second quarter of 2011. For the first six months of 2012, total costs and expenses were $129.9 million, compared to $110.0 million in the first six months of 2011. The planned increases in 2012 costs and expenses were primarily driven by ADCETRIS commercialization and research and clinical development activities in addition to research and development of the company’s other ADC pipeline programs.

Under the ADCETRIS collaboration with Millennium, development costs incurred by Seattle Genetics are included in research and development expense. Joint development costs are co-funded by Millennium on a 50:50 basis. Reimbursement payments received from Millennium are recognized as revenue over the development period of the collaboration along with other development payments received, including the upfront payment and milestone payments. Seattle Genetics co-funds development activities performed by Millennium under the collaboration, which reduces the amount of reimbursement payments received from Millennium.

Non-cash, share-based compensation expense for the first half of 2012 was $11.6 million, compared to $8.5 million in the first half of 2011.

Net loss for the second quarter of 2012 was $17.2 million, or $0.15 per share, compared to a net loss of $51.5 million, or $0.45 per share, for the second quarter of 2011. For the six months ended June 30, 2012, net loss was $29.5 million, or $0.25 per share, compared to a net loss of $84.2 million, or $0.76 per share, for the same period in 2011.

As of June 30, 2012, Seattle Genetics had $330.3 million in cash, cash equivalents and investments, compared to $330.7 million as of December 31, 2011. Cash, cash equivalents and investments as of June 30, 2012 increased by $21.5 million from March 31, 2012 primarily reflecting payments received from ADCETRIS product sales.

Seattle Genetics’ management will host a conference call and webcast to discuss the financial results and provide an update on business activities. The event will be held today at 1:30 p.m. Pacific Time (PT); 4:30 p.m. Eastern Time (ET). The live event will be available from Seattle Genetics’ website at , under the Investors and News section, or by calling (866) 225-8754 (domestic) or (480) 629-9643 (international). The access code is 4555600. A replay of the discussion will be available beginning at approximately 3:30 p.m. PT today from Seattle Genetics’ website or by calling (800) 406-7325 (domestic) or (303) 590-3030 (international), using access code 4555600. The telephone replay will be available until 4:00 p.m. PT on Friday, August 10, 2012.

Seattle Genetics is a biotechnology company focused on the development and commercialization of monoclonal antibody-based therapies for the treatment of cancer. The FDA granted accelerated approval of ADCETRIS in August 2011 for two indications. ADCETRIS is being developed in collaboration with Millennium: The Takeda Oncology Company. In addition, Seattle Genetics has three other clinical-stage ADC programs: SGN-75, ASG-5ME and ASG-22ME. Seattle Genetics has collaborations for its ADC technology with a number of leading biotechnology and pharmaceutical companies, including Abbott, Agensys (an affiliate of Astellas), Bayer, Celldex Therapeutics, Daiichi Sankyo, Genentech, GlaxoSmithKline, Millennium, Pfizer and Progenics, as well as ADC co-development agreements with Agensys and Genmab. More information can be found at .

Certain of the statements made in this press release are forward looking, such as those, among others, relating to the company’s expectations for initiation of future clinical trials, data availability from ongoing clinical trials and expectations for additional regulatory approvals. Actual results or developments may differ materially from those projected or implied in these forward-looking statements. Factors that may cause such a difference include risks that the safety and/or efficacy results of our clinical trials of ADCETRIS affect the commercial potential or ability to initiate future clinical trials of ADCETRIS. We may also be delayed in our planned trial initiations and regulatory submissions and approvals for reasons outside of our control. We may also fail to receive milestone payments under our collaborations and experience unforeseen increased expenses or unexpected reductions in revenues. In addition, if we do not meet our financial guidance or the expectations of analysts or investors, our stock price may be adversely impacted. More information about the risks and uncertainties faced by Seattle Genetics is contained in the company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012 filed with the Securities and Exchange Commission. Seattle Genetics disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

BD&L Summit

Deal-Making Insights for the Life Sciences Industry

Bringing together key deal-makers and serving as an open forum for cross-functional business development and legal teams to share valuable insights and actionable strategies on successfully managing alliances, licensing agreements, and M&A deals.