Quarterly Financial Information (unaudited)

The following financial information reflects all normal recurring adjustments, which are, in the opinion of management, necessary for a fair statement of the results and cash flows of interim periods. All quarters for fiscal years 2017 and 2016 ended December 31, 2017 and January 1, 2017 were 13 weeks. Summarized quarterly data for fiscal years 2017 and 2016 are as follows (in millions, except per share amounts):



	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
2017
Total revenue	$	598	$	662	$	714	$	778
Gross profit	$	368	$	434	$	482	$	542
Consolidated net income	$	348	$	120	$	152	$	58
Net income attributable to Illumina stockholders (a)	$	367	$	128	$	163	$	68
Earnings per share attributable to Illumina stockholders:
Basic	$	2.50	$	0.87	$	1.12	$	0.47
Diluted	$	2.48	$	0.87	$	1.11	$	0.46
2016
Total revenue	$	572	$	600	$	607	$	619
Gross profit	$	397	$	424	$	426	$	419
Consolidated net income	$	88	$	116	$	117	$	108
Net income attributable to Illumina stockholders	$	90	$	120	$	129	$	124
Earnings per share attributable to Illumina stockholders:
Basic	$	0.61	$	0.83	$	0.88	$	0.84
Diluted	$	0.60	$	0.82	$	0.87	$	0.84

Certain amounts may not recalculate using the rounded amounts provided.

(a) First quarter of 2017 includes the results of GRAIL through February 28, 2017, the date of deconsolidation. Refer to note “2. Balance Sheet Account Details” for further discussions.