| Apr 28, 2018 FForm 4 → | May 1, 4:10 pm EDT | Ultra Clean Holdings, Inc.UCTT | 1,049 | $17.45 | $18,305 | 55,247 | — | plan? |
| Mar 30, 2018 AForm 4 → | Apr 3, 4:29 pm EDT | Ultra Clean Holdings, Inc.UCTT | 11,100 | — | — | 56,296 | — | plan? |
| Mar 5, 2018 SForm 4 → | Mar 7, 4:11 pm EST | Ultra Clean Holdings, Inc.UCTT | 7,566 | $20.00 | $151,320 | 45,196 | −14.3% | plan? |
| Feb 27, 2018 FForm 4 → | Mar 1, 4:29 pm EST | Ultra Clean Holdings, Inc.UCTT | 1,218 | $19.41 | $23,641 | 52,762 | — | plan? |
| Feb 26, 2018 FForm 4 → | Feb 28, 4:17 pm EST | Ultra Clean Holdings, Inc.UCTT | 2,434 | $19.73 | $48,023 | 53,980 | — | plan? |
| Feb 13, 2018 AForm 4 → | Feb 15, 4:13 pm EST | Ultra Clean Holdings, Inc.UCTT | 3,312 | — | — | 56,414 | — | plan? |
| Oct 25, 2017 SForm 4 → | Oct 27, 4:12 pm EDT | Ultra Clean Holdings, Inc.UCTT | 13,872 | $32.48 | $450,600 | 53,102 | −20.7% | plan? |
| Jun 15, 2017 SForm 4 → | Jun 19, 4:34 pm EDT | Ultra Clean Holdings, Inc.UCTT | 19,883 | $20.76 | $412,689 | 66,974 | −22.9% | plan? |
| Apr 28, 2017 AForm 4 → | May 2, 4:57 pm EDT | Ultra Clean Holdings, Inc.UCTT | 9,938 | — | — | 86,857 | — | plan? |
| Apr 3, 2017 SForm 4 → | Apr 5, 5:27 pm EDT | Ultra Clean Holdings, Inc.UCTT | 7,912 | $16.58 | $131,146 | 76,919 | −9.33% | plan? |
| Mar 17, 2017 SForm 4 → | Mar 21, 6:24 pm EDT | Ultra Clean Holdings, Inc.UCTT | 30,000 | $15.40 | $462,000 | 84,831 | −26.1% | plan? |
| Mar 17, 2017 MForm 4 → | Mar 21, 6:24 pm EDT | Ultra Clean Holdings, Inc.UCTT | 30,000 | $14.90 | $447,000 | 114,831 | — | plan? |
| Mar 1, 2017 SForm 4 → | Mar 3, 6:28 pm EST | Ultra Clean Holdings, Inc.UCTT | 17,778 | $13.93 | $247,704 | 84,831 | −17.3% | plan? |
| Feb 27, 2017 FForm 4 → | Mar 1, 7:19 pm EST | Ultra Clean Holdings, Inc.UCTT | 2,559 | $14.22 | $36,387 | 102,609 | — | plan? |
| Feb 26, 2017 FForm 4 → | Feb 28, 7:13 pm EST | Ultra Clean Holdings, Inc.UCTT | 2,848 | $14.67 | $41,780 | 105,168 | — | plan? |
| Feb 15, 2017 AForm 4 → | Feb 17, 4:53 pm EST | Ultra Clean Holdings, Inc.UCTT | 7,500 | — | — | 108,016 | — | plan? |
| Feb 26, 2016 AFForm 4 → | Mar 1, 4:55 pm EST | Ultra Clean Holdings, Inc.UCTT | 25,518 | $5.31 | $16,026 | 100,516 | — | plan? |
| Feb 22, 2016 FForm 4 → | Feb 24, 6:27 pm EST | Ultra Clean Holdings, Inc.UCTT | 2,078 | $4.84 | $10,058 | 81,034 | — | plan? |
| Feb 18, 2016 AForm 4 → | Feb 22, 4:44 pm EST | Ultra Clean Holdings, Inc.UCTT | 2,400 | — | — | 83,112 | — | plan? |
| Feb 27, 2015 AFForm 4 → | Mar 3, 7:37 pm EST | Ultra Clean Holdings, Inc.UCTT | 13,205 | $8.26 | $9,953 | 80,712 | — | plan? |
| Feb 24, 2015 FForm 4 → | Feb 26, 5:04 pm EST | Ultra Clean Holdings, Inc.UCTT | 1,123 | $8.26 | $9,276 | 69,917 | — | plan? |
| Feb 22, 2015 FForm 4 → | Feb 24, 7:57 pm EST | Ultra Clean Holdings, Inc.UCTT | 2,078 | $8.41 | $17,476 | 71,040 | — | plan? |
| Feb 11, 2015 AForm 4 → | Feb 13, 6:20 pm EST | ULTRA CLEAN HOLDINGS INCUCTT | 3,185 | — | — | 73,118 | — | plan? |