| 2014-02-19 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 260,400 0.908% | $13.28 | $3.46M | -30.78% | |
| 2014-01-23 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 140,000 0.4824% | $11.98 | $1.68M | -23.88% | |
| 2014-01-22 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 31,452 0.1095% | $11.98 | $376,899 | -23.11% | |
| 2014-01-16 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 31,594 0.1095% | $11.59 | $366,219 | -20.85% | |
| 2014-01-15 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 20,544 0.0713% | $11.62 | $238,740 | -20.92% | |
| 2014-01-14 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 189,126 0.6389% | $11.44 | $2.16M | -21.7% | |
| 2014-01-10 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 29,572 0.1025% | $10.65 | $315,051 | -13.82% | |
| 2014-01-09 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 400,000 1.3824% | $10.69 | $4.28M | -14.24% | |
| 2014-01-08 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 260,396 0.901% | $10.73 | $2.79M | -14.48% | |
| 2013-12-31 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 68,964 0.2399% | $10.07 | $694,750 | -8.42% | |
| 2013-12-30 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 14,554 0.0504% | $9.95 | $144,881 | -7.69% | |
| 2013-12-27 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 23,252 0.0805% | $10.05 | $233,569 | -8.76% | |
| 2013-12-24 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 32,000 0.1134% | $10.40 | $332,902 | -11.34% | |
| 2013-12-23 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 57,682 0.204% | $10.34 | $596,651 | -11% | |
| 2013-12-20 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 79,152 0.2873% | $10.42 | $825,065 | -9.48% | |
| 2013-12-17 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 24,686 0.087% | $10.01 | $247,008 | -8.18% | |
| 2013-12-16 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 65,090 0.2296% | $9.99 | $650,288 | -7.86% | |
| 2013-12-13 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 95,794 0.3385% | $9.94 | $951,953 | -6.96% | |
| 2013-12-11 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 88,354 0.3112% | $9.62 | $849,621 | -4.1% | |
| 2013-12-10 | Sale | Ultra Clean Holdings, Inc. UCTT | 10 percent owner | 21,776 0.0774% | $9.58 | $208,551 | -2.68% |