About AllianceBernstein L.P.
AllianceBernstein L.P. ("AllianceBernstein") is a leading global investment management firm providing investment management services for many of the largest U.S. public and private employee benefit plans, foundations, public employee retirement funds, pension funds, endowments, banks, insurance companies and high-net-worth individuals worldwide. AllianceBernstein is also one of the largest mutual fund sponsors, with a diverse family of globally distributed mutual fund portfolios. Through its subsidiary, Sanford C. Bernstein & Co., LLC, AllianceBernstein provides in-depth research, portfolio strategy and trade execution to the institutional investment community. www.alliancebernstein.com

About Safeguard Scientifics, Inc.
Founded in 1953 and based in Wayne, PA, Safeguard Scientifics, Inc. (NYSE: SFE) provides growth capital for entrepreneurial and innovative technology and life sciences companies. Safeguard targets technology companies in Software as a Service (SaaS) / Internet-based Businesses, Technology-Enabled Services and Vertical Software Solutions, and life sciences companies in Molecular and Point-of-Care Diagnostics, Medical Devices and Specialty Pharmaceuticals with capital requirements between $5 and $50 million. Safeguard participates in expansion financings, corporate spin-outs, management buyouts, recapitalizations, industry consolidations and early-stage financings. www.safeguard.com

About RK Ventures
RK Ventures is a venture capital partnership that provides capital and management support to seed and early-stage companies in financial services, software and biotechnology. RK Ventures identifies entrepreneurs who are passionate about their vision and who have the skills and background to make that vision a reality. RK Ventures is directed by Matthew Rhodes-Kropf and Ira Weiss, professors at Columbia University Graduate School of Business.

About Lilly Ventures
Lilly Ventures is the venture capital arm of Eli Lilly and Company, a leading innovation-driven pharmaceutical company. Our primary goal is to facilitate the success of companies in our areas of focus through early to expansion stage investments and value-adding resources. Lilly Ventures currently has $175 million under management and focuses on three major areas of interest: biotechnology; healthcare IT; and medical technology.

About Pfizer Strategic Investments Group
Pfizer Strategic Investments Group (PSIG) is part of Pfizer Inc. which discovers, develops and markets leading prescription medicines for humans and animals and many of the world's best known consumer brands. PSIG invests in companies that develop or market technologies, products or services that could advance Pfizer's interests. For more information, visit www.pfizer.com/psig/.

About BioAdvance
As part of a $2 billion initiative of the Commonwealth of Pennsylvania for the life sciences, BioAdvance received $33.8 million to accelerate the creation of life sciences jobs and businesses in Southeastern Pennsylvania. Since its inception in 2002, BioAdvance has committed more than $10 million of its Greenhouse Fund to 29 enterprises and research projects. Their technologies and products cover an array of innovations - from powerful new diagnostics to medical devices and promising therapies for a variety of disabling and life threatening conditions including cancer, Alzheimer's disease, macular degeneration, obesity, drug resistant infections, intractable pain, and addiction. For more information on BioAdvance and its portfolio companies, visit www.bioadvance.com.