25th Annual ROTH Conference NYSE MKT: BTX March, 2013 Forward Looking Statements The matters discussed in this presentation include forward looking statements which are subject to various risks, uncertainties, and other factors that could cause actual results to differ materially from the results anticipated. Such risks and uncertainties include but are not limited to the success of BioTime in developing new stem cell products and technologies; results of clinical trials of BioTime products; the ability of BioTime and its licensees to obtain additional FDA and foreign regulatory approval to market BioTime products; competition from products manufactured and sold or being developed by other companies; the price of and demand for BioTime products; and the ability of BioTime to raise the capital needed to finance its current and planned operations. Any statements that are not historical fact (including, but not limited to statements that contain words such as "will," "believes," "plans," "anticipates," "expects," "estimates") should also be considered to be forward-looking statements. Forward-looking statements involve risks and uncertainties, including, without limitation, risks inherent in the development and/or commercialization of potential products, uncertainty in the results of clinical trials or regulatory approvals, need and ability to obtain future capital, and maintenance of intellectual property rights. As actual results may differ materially from the results anticipated in these forward-looking statements they should be evaluated together with the many uncertainties that affect the business of BioTime and its subsidiaries, particularly those mentioned in the cautionary statements found in BioTime's Securities and Exchange Commission filings. BioTime disclaims any intent or obligation to update these forward-looking statements. 2 The Health Care Challenge & Opportunity A global tsunami of health care costs from ineffectiveness of drugs to treat chronic degenerative disease (CDD) • CDD due to lack of cellular regeneration • 80% Americans have CDD of aging • 50% of Americans have two CDDs • 95% costs in aging is CDD The Health Care Challenge & Opportunity Progressive evolution of new & more interventional products over past four decades Recombinant DNA Technology • 1974 – Gene cloning technology developed • 1976 - Moratorium on rDNA research initiated led to established guidelines on rDNA research • 1989 – First $B product EPO • Today, products from the use of rDNA technology are ubiquitous • >140 clinical trials • Current Global Market $75 B Monoclonal Antibodies • 1975 - Hybridoma technology developed • 1997- First $B Product Rituximab • Advances in Mab Engineering • Today, eight of the 20 bestselling biotechnology drugs in therapeutic monoclonal antibodies • > 200 clinical trials Regenerative Medicine •1998 – Embryonic Stem Cells allowing for the first time in the history of medicine the manufacture of all human cellular components •2001 – U.S. Federal funding restriction (reversed in 2009) •2010 – 1st hES Clinical trial • Future – 1st $B product • Current Global Market $44 B 4 The BioTime Opportunity • Consolidating key stem cell assets • • • - ES Cell International - Geron stem cell assets - HyStem hydrogels Integration with PureStem technology Focus on near-term products Significant clinical milestones for 2013 5 PureStem Manufacturing Technology Human embryonic progenitor (hEP) cell lines: > 200 diverse cell types isolated Diversity Precise identity Purity Scalability Patents pending 6 ReneviaTM – Cell Delivery Device Injectable, biocompatible, and biodegradable Cells in Renevia Matrix (Crosslinked Collagen and Hyaluronate) Low COGs, Stable Product, Potential Widespread Applications HyStem Hydrogels – Competitive Advantages Injectable Stays as liquid for ~ 20 minutes Polymerizes safely in vivo Supports survival of cells and 3-D structure 3-D Lattices Heparin-mediated Cells in Sponge Slow Release Multiple Formulations Durable Films Cast Hydrogel 8 ReneviaTM – Development Indication: As a delivery matrix for autologous adipose derived cells to correct subcutaneous lipoatrophy arising from trauma, oncologic resection, or congenital defect. 3 Phase Clinical Evaluation of ReneviaTM • Phase 1: Safety - open label, ReneviaTM only, subcutaneous injection, 10 subjects, 4 week follow up. • Phase 2: Treatment Effect - open label, ReneviaTM + ADSCs, 15 patients, 3-6 months follow up. • Phase 3: Pivotal - randomized, controlled, evaluator blind, noninferiority, ReneviaTM + ADSCs vs. Cell-Assisted Lipotransfer, # of patient per group TBD, 6 months follow up. • Primary endpoints: Aesthetic Improvement Score & photo review • Secondary endpoint: Change in subcutaneous defect volume • Single Site: The Stem Center, Palma de Mallorca, Spain 9 ReneviaTM – A Cell Delivery Device ReneviaTM Regulatory Strategy Adipose tissue restoration with autologous ASCs Medical device (CE Mark in the EU then CBER/CDRH) Outsource cGMP manufacture Near-term opportunity, low cost for approval Expected ReneviaTM CE Mark in 2015 ReneviaTM Timeline Complete cGMP Manufacture Treatment Effect Clinical Trial Initiated CE Mark Renevia™ Safety Clinical Trial Initiated Final Dossier Submission Pivotal Clinical Trial Initiated ISO 13485 Certification Q4 2012 Q1 Q2 2013 Q3 Q4 Q1 Q2 2014 Q3 Q4 Q1 2015 10 Potential ReneviaTM Applications • • • • • Heart Disease Alzheimer’s Diabetes Stroke Renal Failure ✔ ✔ ✔ ✔ ✔ 165 B 69 B 92 B 28 B 33 B Regen. Med. (2008) 3(3), 351–363 11 Subsidiaries OncoCyte Corporation Cancer diagnostics and anti-cancer therapies Cell Cure Neurosciences Ltd. Age-related macular degeneration (AMD) OrthoCyte Corporation Cartilage repair ReCyte Therapeutics, Inc. Age-related vascular disorders ES Cell International PTE Ltd. Clinical-grade master stem cell banks LifeMap Sciences, Inc. Stem cell data base and research products BioTime Acquisition Corp.. Expected Contribution of Geron and BioTime Assets 12 OncoCyte Corporation- PanC-DxTM Screening in asymptomatic patients is the largest market opportunity PanC-DxTM Pan diagnostic to detect the presence of various human cancers, including cancers of the breast, lung, bladder, uterus, stomach, and colon, during routine check-ups using a low-cost antibodybased blood test. mAb production for seven antigens in process Specificity of >50 mAbs characterized Dynamic testing for use in ELISA and point of care formats currently underway. Initially develop and seek regulatory approval of PanC-DxTM in Europe Expected launch in 2014 13 PanC-DxTM Cancer Diagnostic Regulatory Strategy CE Mark (EU) then CDRH/OIVD (U.S.) Near-term opportunity, low cost for approval Timeline leading to 2014 launch Antibody Screening Marker Validation Final Kit Developed Antibody Production Q3 2011 Q4 Q1 Q2 Q3 2012 Q4 Q1 CE Mark Patient Study Completion Q2 Q3 2013 Q4 Q1 Q2 Q3 Q4 2014 14 Subsidiaries OncoCyte Corporation Cancer diagnostics and anti-cancer therapies Cell Cure Neurosciences Ltd. Age-related macular degeneration (AMD) OrthoCyte Corporation Cartilage repair ReCyte Therapeutics, Inc. Age-related vascular disorders ES Cell International PTE Ltd. Clinical-grade master stem cell banks LifeMap Sciences, Inc. Stem cell data base and research products BioTime Acquisition Corp.. Expected Contribution of Geron and BioTime Assets 15 Cell Cure Neurosciences Ltd. OpRegen® – RPE Cells for the Treatment of AMD 7.3 million have early stage dry AMD in US Any effective treatment expected to achieve blockbuster sales OpRegen® – Suspension of retinal pigment epithelial (RPE) cells for dry age-related macular degeneration (AMD) OpRegen® Plus – Matrix bound RPE cells for dry AMD Partnered with TEVA 16 Cell Cure Neurosciences Ltd. Planned IND in 2013/2014 Phase I/IIa Study of hESC-RPE in Progressive Dry-Form AgeRelated Macular Degeneration (12 patients, 1 year follow up time, single doses) Primary endpoint: Safety Secondary endpoint: Efficacy • Visual Acuity • Maintenance of graft size over serial measurements (graft survival) • Reduced expansion of geographic atrophy in grafted sites vs. nongrafted sites (in the same eye) • Perimetry- extent and depth of central scotomata • Single site: Hadassah, Israel Duration (enrollment and follow up): 18 months 17 Subsidiaries OncoCyte Corporation Cancer diagnostics and anti-cancer therapies Cell Cure Neurosciences Ltd. Age-related macular degeneration (AMD) OrthoCyte Corporation Cartilage repair ReCyte Therapeutics, Inc. Age-related vascular disorders ES Cell International PTE Ltd. Clinical-grade master stem cell banks LifeMap Sciences, Inc. Stem cell data base and research products BioTime Acquisition Corp.. Expected Contribution of Geron and BioTime Assets 18 OrthoCyte Corporation Developing regenerative therapeutics for orthopedic applications Cartilage cannot regenerate on its own Osteoarthritis and spinal disc degeneration have a significant impact on mobility and health - > 26 million people in U.S. and growing Drug treatments target the reduction of pain and inflammation as opposed to repairing tissue Studies in animal models of IVD disease underway - Non-hypertrophic progenitors Off the shelf approach 19 OrthoCyte- Cartilage Progenitors E15 20 Subsidiaries OncoCyte Corporation Cancer diagnostics and anti-cancer therapies Cell Cure Neurosciences Ltd. Age-related macular degeneration (AMD) OrthoCyte Corporation Cartilage repair ReCyte Therapeutics, Inc. Age-related vascular disorders ES Cell International PTE Ltd. Clinical-grade master stem cell banks LifeMap Sciences, Inc. Stem cell data base and research products BioTime Acquisition Corp.. Expected Contribution of Geron and BioTime Assets 21 Regenerative Medicine Twin strategies for cell transplantation Human embryonic stem (hES) for limited allogeneic applications • Sites behind the blood brain barrier • Sites behind synovial membranes • Cells targeting tumors for destruction Human induced pluripotent stem (iPS) cells for autologous transplantation • Vascular disease 22 ReCyte Therapeutics, Inc. RCX-VP01 for Age-Related Vascular Insufficiency American Heart Association Report on Heart Disease and Stroke Statistics: 2011 Update Cardiovascular Disease (CVD) Prevalence: • 82,600,000 American adults (>1 in 3) with 1 or more types of CVD • 2200 deaths from CVD per day; average life expectancy shortened 7 years Stroke (Cerebrovascular Disease) Incidence: • 800,000 new (77%) or recurrent (23%) strokes per year • 1 of every 18 deaths in U.S. in 2007 Healthcare Impact and Cost: • • $286 billion total direct and indirect costs of CVD and stroke in U.S. in 2007 nearly 7 million inpatient cardiovascular operations and procedures in 2007 23 Subsidiaries OncoCyte Corporation Cancer diagnostics and anti-cancer therapies Cell Cure Neurosciences Ltd. Age-related macular degeneration (AMD) OrthoCyte Corporation Cartilage repair ReCyte Therapeutics, Inc. Age-related vascular disorders ES Cell International PTE Ltd. Clinical-grade master stem cell banks LifeMap Sciences, Inc. Stem cell data base and research products BioTime Acquisition Corp.. Expected Contribution of Geron and BioTime Assets 24 LifeMap Sciences, Inc. The leading human gene database • Used in more than 1,000 institutions world-wide including academia, research hospitals, patent offices, and the leading biotech and pharma • More than 12 Million page visits/year by hundreds of thousands of unique users • 30% usage growth in the past 12 months • Consistently leads in top positions for gene search results in Google 25 LifeMap BioReagents >12 Million page hits/yr BioTime Products Third Party Products Cells > 1,000 USCN Antibody kits Genes >1,000 ProspecTany Technogene Proteins Diseases Powerful Marketing Platform Near-term Revenue Seed for Future Royalties All online % of Sales 26 Subsidiaries OncoCyte Corporation Cancer diagnostics and anti-cancer therapies Cell Cure Neurosciences Ltd. Age-related macular degeneration (AMD) OrthoCyte Corporation Cartilage repair ReCyte Therapeutics, Inc. Age-related vascular disorders ES Cell International PTE Ltd. Clinical-grade master stem cell banks LifeMap Sciences, Inc. Stem cell data base and research products BioTime Acquisition Corp.. Contribution of Geron and BioTime Assets 27 BioTime Acquisition Corp. What Geron Contributes and Receives… Terms subject to closing Geron will contribute: • IP and tangible assets related to hES programs • Phase 1 trials in acute spinal cord injury & T’ase vaccine • IP and sublicense to autologous cellular immunotherapy program • Interests in non-therapeutic applications • including products developed and sold by GE Heathcare Geron receives: • Shares in BAC (approx 21.4% interest) • Royalties on sale of products using Geron patents • Shares will be distributed by Geron to their shareholders (following closing) 28 BioTime Acquisition Corp. What BioTime Contributes and Receives… Terms subject to closing BioTime will contribute to BAC: • $5 million in cash (committed through a private investor) • 8.9 MM in BioTime Common Stock to be held by BAC • 8 million BioTime warrants • At closing, to be distributed by BAC to Geron stockholders • Minority equity interest in OrthoCyte and Cell Cure • Rights to use certain BioTime cell lines BioTime receives: • Shares in BAC (Approx. 71.6% interest in BAC) • 3.15 MM Warrants in BAC 29 BioTime Acquisition Corp. Stem Cell Assets Being Contributed from Geron 30 BioTime Acquisition Corp. Stem Cell Assets Being Contributed from Geron >400 issued & pending patent applications worldwide including: • Feeder-free culture of hPS cells • hES-derived dendritic cells for treating cancer • TGFbeta inhibitors & Neural • RNA isolation from hPS cells or derivatives • Feeder free hPS cells in drug screening • Medium for hPS cell culture • hPS-derived hepatocytes • Dopaminergic neurons from hPS cells • hPS cell-specific genetic toxicity • Selective antigen expression on hPS cells 31 Current Product Pipeline Preclinical Phase I Phase II Phase III Market Partner Hextend Research Products/Database HyStem® Hydrogel Products 2014-2015 Renevia 2014 PanC-DxTM OpRegen Teva 2013 OTX-CP07 RCX-VP01 32 BioTime (NYSE MKT: BTX) A Technological Leader with Revenue, Low Burn Rate and Near-term Product Opportunities Key Statistics: $4.4MM cash of 12/31/12 Raised additional $16.3 million to date in 2013 Approx. $10MM in investments held by our subsidiaries Revenue of $3.9MM in 2012 Avg. qtrly burn rate of $4.9MM per quarter No debt Market Cap approx. $240MM as of 3/15/13 Major Shareholders: 17.5% 16.1% 9.2% 46.7% Greenbelt/Greenway/ Broadwood Capital Individual Investor Insiders Al Kingsley (Chairman) (Neal Bradsher, Director) & LT Investors BioTime shareholder base with significant long term investors 33 BioTime’s Key Milestones Next 12 months… • • • • • Initiation of HyStem ® -Rx clinical trial IND filing of OpRegen for AMD PanC-Dx patient study Corporate partnering and collaborations Increased revenue from LifeMap BioReagents 34 Summary Positioned to Lead the Commercialization of Pluripotency in Regenerative Medicine >200 purified human cell types manufactured for the first time Leading patent position Emphasis on near-term products: - ReneviaTM - PanC-DxTM - LifeMap BioReagents Longer–term first-in-class stem cellbased therapeutics for currently incurable degenerative diseases Subsidiaries focused on specific disease areas Alameda, California Headquarters 35 Thank You Michael West, Ph.D. CEO Pete Garcia CFO 510-521-3390 pgarcia@biotimemail.com