Warren Buffett - Berkshire Hathaway
Holding/activity history for International Business Machines (IBM)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2018 Q1 | 0 | 0 | Sell 100.00% | 0.16 | |
| 2017 Q4 | 2,048,045 | 0.16 | Reduce 94.47% | 2.73 | $153.42 |
| 2017 Q3 | 37,026,698 | 3.02 | Reduce 31.54% | 1.39 | $145.08 |
| 2017 Q2 | 54,084,673 | 5.13 | Reduce 16.23% | 0.99 | $153.83 |
| 2017 Q1 | 64,561,955 | 6.95 | Reduce 20.52% | 1.79 | $174.14 |
| 2016 Q4 | 81,232,303 | 9.11 | $165.99 | ||
| 2016 Q3 | 81,232,303 | 10.02 | $158.85 | ||
| 2016 Q2 | 81,232,303 | 9.51 | $151.78 | ||
| 2016 Q1 | 81,232,303 | 9.57 | Add 0.25% | 0.02 | $151.45 |
| 2015 Q4 | 81,033,450 | 8.46 | $137.62 | ||
| 2015 Q3 | 81,033,450 | 9.22 | Add 1.85% | 0.17 | $144.97 |
| 2015 Q2 | 79,565,115 | 11.81 | $162.66 | ||
| 2015 Q1 | 79,565,115 | 11.92 | Add 3.37% | 0.39 | $160.50 |
| 2014 Q4 | 76,971,817 | 11.29 | Add 9.21% | 0.95 | $160.44 |
| 2014 Q3 | 70,478,012 | 12.34 | Add 0.43% | 0.05 | $189.83 |
| 2014 Q2 | 70,173,978 | 11.82 | Add 2.66% | 0.31 | $181.27 |
| 2014 Q1 | 68,355,084 | 12.44 | Add 0.34% | 0.04 | $192.49 |
| 2013 Q4 | 68,121,984 | 12.19 | $187.57 | ||
| 2013 Q3 | 68,121,984 | 13.71 | $185.18 | ||
| 2013 Q2 | 68,121,984 | 14.17 | $191.11 | ||
| 2013 Q1 | 68,121,984 | 17.09 | Add 0.01% | 0.00 | $213.30 |
| 2012 Q4 | 68,115,484 | 17.32 | Add 0.89% | 0.15 | $191.55 |
| 2012 Q3 | 67,517,896 | 18.59 | Add 1.31% | 0.24 | $207.45 |
| 2012 Q2 | 66,645,396 | 17.54 | Add 3.49% | 0.59 | $195.58 |
| 2012 Q1 | 64,395,700 | 17.84 | Add 0.77% | 0.14 | $208.65 |
| 2011 Q4 | 63,905,931 | 17.76 | Add 11.43% | 1.82 | $183.88 |
| 2011 Q3 | 57,348,984 | 16.98 | Add 130.74% | 9.62 | $174.87 |
| 2011 Q2 | 24,854,744 | 7.53 | Add 450.15% | 6.16 | $171.55 |
| 2011 Q1 | 4,517,774 | 1.36 | Buy | 1.36 | $163.07 |