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Common stock (Tables)
6 Months Ended
Jun. 30, 2019
Equity [Abstract]  
Changes in issued, treasury and outstanding Berkshire common stock

Changes in Berkshire’s issued, treasury and outstanding common stock during the first six months of 2019 are shown in the table below. In addition to our common stock, 1,000,000 shares of preferred stock are authorized, but none are issued.

 

 

 

Class A, $5 Par Value

(1,650,000 shares authorized)

 

 

Class B, $0.0033 Par Value

(3,225,000,000 shares authorized)

 

 

 

Issued

 

 

Treasury

 

 

Outstanding

 

 

Issued

 

 

Treasury

 

 

Outstanding

 

Balance December 31, 2018

 

 

742,213

 

 

 

(12,897

)

 

 

729,316

 

 

 

1,373,558,983

 

 

 

(6,138,909

)

 

 

1,367,420,074

 

Conversions of Class A common stock to Class B

   common stock and exercises of replacement

   stock options

 

 

(5,919

)

 

 

 

 

 

(5,919

)

 

 

9,144,369

 

 

 

 

 

 

9,144,369

 

Treasury stock acquired

 

 

 

 

 

(1,539

)

 

 

(1,539

)

 

 

 

 

 

(8,285,970

)

 

 

(8,285,970

)

Balance at June 30, 2019

 

 

736,294

 

 

 

(14,436

)

 

 

721,858

 

 

 

1,382,703,352

 

 

 

(14,424,879

)

 

 

1,368,278,473