Warren Buffett - Berkshire Hathaway

Holding/activity history for  Costco Co. (COST)

PeriodShares% of PortfolioActivity% Change to PortfolioReported Price
2017   Q3 4,333,363 0.40 $164.29
2017   Q2 4,333,363 0.43 $159.93
2017   Q1 4,333,363 0.45 $167.69
2016   Q4 4,333,363 0.47 $160.11
2016   Q3 4,333,363 0.51 $152.51
2016   Q2 4,333,363 0.52 $157.04
2016   Q1 4,333,363 0.53 $157.58
2015   Q4 4,333,363 0.53 $161.50
2015   Q3 4,333,363 0.49 $144.57
2015   Q2 4,333,363 0.53 $135.06
2015   Q1 4,333,363 0.61 $151.50
2014   Q4 4,333,363 0.56 $141.75
2014   Q3 4,333,363 0.50 $125.32
2014   Q2 4,333,363 0.46 $115.16
2014   Q1 4,333,363 0.46 $111.68
2013   Q4 4,333,363 0.49 $119.02
2013   Q3 4,333,363 0.54 $115.17
2013   Q2 4,333,363 0.52 $110.57
2013   Q1 4,333,363 0.54 $106.11
2012   Q4 4,333,363 0.57 $98.73
2012   Q3 4,333,363 0.58 $100.16
2012   Q2 4,333,363 0.55 $95.00
2012   Q1 4,333,363 0.52 $90.80
2011   Q4 4,333,363 0.55 $83.32
2011   Q3 4,333,363 0.60 $82.13
2011   Q2 4,333,363 0.62 $81.24
2011   Q1 4,333,363 0.58 $73.32
2010   Q4 4,333,363 0.60 $72.21
2010   Q3 4,333,363 0.58 $64.49
2010   Q2 4,333,363 0.51 $54.83
2010   Q1 4,333,363 0.51 Reduce 17.52% 0.11 $59.71
2009   Q4 5,254,000 0.54 $59.17
2009   Q3 5,254,000 0.52 $56.38
2009   Q2 5,254,000 0.49 $45.78
2009   Q1 5,254,000 0.60 $46.32
2008   Q4 5,254,000 0.53 $52.50
2008   Q3 5,254,000 0.49 $64.93
2008   Q2 5,254,000 0.58 $70.14
2008   Q1 5,254,000 0.51 $64.97
2007   Q4 5,254,000 0.53 $69.76
2007   Q3 5,254,000 0.49 $61.37
2007   Q2 5,254,000 0.49 $58.52
2007   Q1 5,254,000 0.49 $53.84
2006   Q4 5,254,000 0.53 $52.87