7. Stockholders' Equity Treasury Stock (Tables)

12 Months Ended

Dec. 31, 2018

Equity, Class of Treasury Stock [Line Items]

Treasury Shares

In November, 2017, the Board of Directors authorized a new share repurchase program, granting Bio-Rad authority to repurchase, on a discretionary basis, up to $250.0 million of outstanding shares of our common stock. Repurchases may be made at management's discretion from time to time on the open market or through privately negotiated transactions. This new authorization superseded the prior authorization of up to $18.0 million of Bio-Rad's common stock and has no expiration. The share repurchase activity under the share repurchase program through open market transactions in 2017 and 2018 is summarized as follows:



	Number of Shares Purchased	Weighted-Average Price per Share		Total Shares Repurchased To Date	Remaining Authorized Value (in millions)
May 1, 2017 - May 31, 2017	2,500	$	220.02	3,539	$	2.7
June 1, 2017 - June 30, 2017	1,500	$	221.82	5,039	$	2.4
August 1, 2017 - August 31, 2017	9,200	$	221.45	14,239	$	0.4
November 1, 2018 - November 30, 2018	178,911	$	273.39	193,150	$	201.1

In September 2017, we used 12,740 of the repurchased shares in connection with the vesting of restricted stock units under the 2007 Incentive Award Plan in order to obtain a tax deduction in some of our foreign entities. The Credit Agreement may limit our ability to repurchase our stock.