Ultra Clean Holdings, Inc.
A supplier of critical parts and services for the semiconductor industry, Ultra Clean Holdings designs gas and fluid delivery systems, precision robotics, and process modules used in chip-making equipment, and runs ultra-high purity parts cleaning and coating services for chipmakers' tools. Its customers include equipment makers like Applied Materials and Lam Research as well as semiconductor device manufacturers, with operations reaching Asia Pacific and EMEA.
Granted 149.1K
Granted 86.9K · Sold 23.4K
Granted 2.6K · Sold 30.0K
Granted 2.6K
Granted 26.4K · Sold 30.2K
Granted 2.6K
Granted 2.6K · Sold 23.5K
Granted 2.6K · Sold 8.2K
Granted 17.8K · Sold 21.0K
Granted 2.6K
Granted 9.9K · Sold 8.7K
Granted 8.0K · Sold 2.9K
Granted 5.9K · Sold 6.7K
Granted 5.6K
Granted 2.6K
Granted 10.7K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Xiao JinsongChief Executive Officer · 2 transactions | — | 149.1K | 149.1K | — | — |
| Cook Christopher SPresident, Products Division · 8 transactions | +82.2% | 114.7K | 86.9K | — | 23.4K |
| Granger Clarence LDirector · 9 transactions | -35.7% | 85.4K | 2.6K | — | 30.0K |
| Maddock Ernest EDirector · 1 transaction | +4.6% | 58.8K | 2.6K | — | — |
| Savage SheriCFO · 50 transactions | -22.4% | 51.5K | 26.4K | — | 30.2K |
| Edman Thomas TDirector · 1 transaction | +5.6% | 48.6K | 2.6K | — | — |
| Ibnale David TDirector · 2 transactions | -30.4% | 47.8K | 2.6K | — | 23.5K |
| Liggett Emily MDirector · 2 transactions | -12.8% | 38.2K | 2.6K | — | 8.2K |
| Harding Brian EChief Accounting Officer · 28 transactions | -22.4% | 37.4K | 17.8K | — | 21.0K |
| Seto Jacqueline A.Director · 1 transaction | +8.9% | 31.5K | 2.6K | — | — |
| Palfrey Jamie J.SVP, Global Human Resources · 5 transactions | -13.5% | 26.3K | 9.9K | — | 8.7K |
| Cho Paul YoonkuGeneral Counsel and Secretary · 6 transactions | -1.7% | 22.9K | 8.0K | — | 2.9K |
| McKibben Jeffrey L.Chief Information Officer · 6 transactions | -21.6% | 17.2K | 5.9K | — | 6.7K |
| Johnson Samuel WilliamsSVP, Services Business · 2 transactions | +33.1% | 16.4K | 5.6K | — | — |
| Solomon JoanneDirector · 1 transaction | +27.1% | 12.1K | 2.6K | — | — |
| Wunar Robert AnthonyChief Operating Officer · 1 transaction | — | 10.7K | 10.7K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last year: -154.6K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.