For 2013 we are projecting 15% total company revenue growth and non-GAAP earnings per fully diluted share of $1.55 to $1.62, including the pending Verinata acquisition. These projections include full year non-GAAP gross margin of approximately 70%, a pro forma tax rate of approximately 31% and stock compensation expense of approximately $115 million. Full-year weighted average diluted shares outstanding, for the measurement of pro forma amounts, is expected to be approximately 134 million shares.
Quarterly conference call information
The conference call will begin at 2:00 pm Pacific Time (5:00 pm Eastern Time) on Monday, January 28, 2013. Interested parties may listen to the call by dialing 888-679-8035 (passcode: 35493315), or, if outside North America, by dialing +1-617-213-4848 (passcode: 35493315). Individuals may access the live teleconference in the Investor Relations section of Illumina's web site under the “Company” tab at www.illumina.com.
A replay of the conference call will be available from 4:00 pm Pacific Time (7:00 pm Eastern Time) on January 28, 2013 through February 4, 2013 by dialing 888-286-8010 (passcode: 76555573), or if outside North America, by dialing +1-617-801-6888 (passcode: 76555573).Statement regarding use of non-GAAP financial measures The Company reports non-GAAP results for diluted net income per share, net income, gross margins, operating expenses, operating margins, other income, and free cash flow in addition to, and not as a substitute for, or superior to, financial measures calculated in accordance with GAAP. The Company's financial measures under GAAP include substantial charges related to stock compensation expense, non-cash interest expense associated with the Company's convertible debt instruments that may be settled in cash, net gains related to cost-method investments, headquarter relocation expense, costs related to unsolicited tender offer for the Company's stock, impairment of in-process research and development, amortization expense related to acquired intangible assets, contingent compensation expense, restructuring charges, legal contingencies, acquisition related expense, amortization of inventory revaluation costs, and loss on extinguishment of debt. Per share amounts also include the double dilution associated with the accounting treatment of the Company's 0.625% convertible senior notes outstanding and the corresponding call option overlay. Management believes that presentation of operating results that excludes these items and per share double dilution provides useful supplemental information to investors and facilitates the analysis of the Company's core operating results and comparison of operating results across reporting periods. Management also believes that this supplemental non-GAAP information is therefore useful to investors in analyzing and assessing the Company's past and future operating performance.