Charles Bobrinskoy - Ariel Focus Fund
Holding/activity history for Berkshire Hathaway CL B (BRK.B)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2013 Q1 | 0 | 0 | Sell 100.00% | 1.27 | |
| 2012 Q4 | 5,900 | 1.27 | Reduce 46.85% | 1.12 | $89.66 |
| 2012 Q3 | 11,100 | 2.24 | Reduce 32.73% | 1.09 | $88.20 |
| 2012 Q2 | 16,500 | 3.19 | $83.33 | ||
| 2012 Q1 | 16,500 | 2.90 | $81.15 | ||
| 2011 Q4 | 16,500 | 2.94 | $76.30 | ||
| 2011 Q3 | 16,500 | 2.75 | Buy | 2.75 | $71.03 |
| 2010 Q2 | 0 | 0 | Sell 100.00% | 2.92 | |
| 2010 Q1 | 14,250 | 2.92 | Reduce 49.56% | 2.87 | $81.26 |
| 2009 Q4 | 28,250 | 5.00 | Reduce 15.67% | 0.93 | $65.73 |
| 2009 Q3 | 33,500 | 6.47 | Add 48.56% | 2.11 | $66.45 |
| 2009 Q2 | 22,550 | 4.55 | $57.92 | ||
| 2009 Q1 | 22,550 | 5.64 | Reduce 26.19% | 2.00 | $56.41 |
| 2008 Q4 | 30,550 | 7.39 | Add 15.07% | 0.97 | $64.29 |
| 2008 Q3 | 26,550 | 6.53 | $87.91 | ||
| 2008 Q2 | 26,550 | 5.67 | Reduce 20.86% | 1.49 | $80.23 |
| 2008 Q1 | 33,550 | 7.62 | Add 25.19% | 1.53 | $89.45 |
| 2007 Q4 | 26,800 | 6.20 | Reduce 35.89% | 3.47 | $94.70 |
| 2007 Q3 | 41,800 | 7.82 | Add 1.21% | 0.09 | $79.04 |
| 2007 Q2 | 41,300 | 7.25 | Add 5.76% | 0.39 | $72.11 |
| 2007 Q1 | 39,050 | 8.02 | Add 10.62% | 0.77 | $72.80 |
| 2006 Q4 | 35,300 | 7.91 | $73.31 |