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Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net sales	$ 553,979	$ 551,519
Cost of goods sold	242,217	249,316
Gross profit	311,762	302,203
Selling, general and administrative expense	207,581	209,130
Research and Development Expense	47,575	49,427
Segment profit (loss)	56,606	43,646
Interest expense	5,986	5,782
Foreign exchange (gains) losses, net	1,280	1,254
Unrealized Gain on Securities	(1,059,230)	(815,934)
Nonoperating Income (Expense)	18,696	11,145
Income before income taxes	1,127,266	863,689
(Provision) benefit for income taxes	(262,071)	(206,915)
Net income attributable to Bio-Rad	$ 865,195	$ 656,774
Basic earnings per share:
Net income per share basic attributable to Bio-Rad	$ 29.03	$ 22.05
Weighted average common shares - basic	29,801	29,787
Diluted earnings per share:
Net income per share diluted attributable to Bio-Rad	$ 28.74	$ 21.77
Weighted average common shares - diluted	30,104	30,171

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