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Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net sales	$ 572,619	$ 575,911	$ 1,126,598	$ 1,127,430
Cost of goods sold	264,850	274,244	507,067	523,560
Gross profit	307,769	301,667	619,531	603,870
Selling, general and administrative expense	201,257	210,425	408,838	419,555
Research and Development Expense	50,122	47,450	97,697	96,877
Segment profit (loss)	56,390	43,792	112,996	87,438
Interest expense	5,841	5,977	11,827	11,759
Foreign exchange (gains) losses, net	1,233	(15)	2,513	1,239
Unrealized Gain on Securities	(716,389)	(286,398)	(1,775,619)	(1,102,332)
Nonoperating Income (Expense)	3,896	15,858	22,592	27,003
Income before income taxes	769,601	340,086	1,896,867	1,203,775
(Provision) benefit for income taxes	(170,791)	(72,043)	(432,862)	(278,958)
Net income attributable to Bio-Rad	$ 598,810	$ 268,043	$ 1,464,005	$ 924,817
Basic earnings per share:
Net income per share basic attributable to Bio-Rad	$ 20.08	$ 8.99	$ 49.12	$ 31.03
Weighted average common shares - basic	29,814	29,814	29,807	29,801
Diluted earnings per share:
Net income per share diluted attributable to Bio-Rad	$ 19.86	$ 8.87	$ 48.60	$ 30.63
Weighted average common shares - diluted	30,154	30,219	30,125	30,197

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