Ultra Clean Holdings's three largest insider shareholders as of June 09, 2026 are James P Scholhamer (Ceo, 418.45K shares), Vijayan S. Chinnasami (Chief Operating Officer, 184.34K shares), Christopher S Cook (President, Products Division, 130.01K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Thomas T Edman | - | 46,041 | 0 | 27 May, 2025 |
| James P Scholhamer | Ceo | 418,453 | 0 | 11 Jul, 2024 |
| Barbara Vaughn Scherer | - | 53,543 | 0 | 24 May, 2024 |
| Ernest E Maddock | - | 45,241 | 0 | 23 May, 2025 |
| Emily M Liggett | - | 43,775 | 0 | 23 May, 2025 |
| Clarence L Granger | Interim Ceo | 111,817 | 0 | 03 Mar, 2026 |
| David T Ibnale | - | 45,241 | 0 | 05 Dec, 2025 |
| Chris Siu | Chief Accounting Officer Svp | 40,106 | 0 | 02 Jun, 2022 |
| Joanne Solomon | - | 9,508 | 0 | 27 May, 2025 |
| Vijayan S. Chinnasami | Chief Operating Officer | 184,342 | 0 | 02 May, 2023 |
| Sheri Savage | Cfo | 66,381 | 0 | 02 May, 2025 |
| Brian E Harding | Chief Accounting Officer | 48,237 | 0 | 02 Jul, 2025 |
| William Joe Williams | President, Products Business | 34,061 | 0 | 03 May, 2022 |
| Bill Bentinck | President, Services Business | 71,503 | 0 | 02 May, 2025 |
| Paul Yoonku Cho | General Counsel And Secretary | 23,345 | 0 | 10 Jun, 2025 |
| Jacqueline A. Seto | - | 28,950 | 0 | 23 May, 2025 |
| Jeffrey L. Mckibben | Chief Information Officer | 21,996 | 0 | 06 Jun, 2025 |
| Jamie J. Palfrey | Svp, Global Human Resources | 30,465 | 0 | 08 May, 2025 |
| Christopher S Cook | President, Products Division | 130,015 | 0 | 03 Sep, 2025 |
| Harjinder Bajwa | Chief Operating Officer | 76,693 | 0 | 02 Jul, 2025 |
| Samuel Williams Johnson | Svp, Services Business | 10,869 | 0 | 02 Apr, 2026 |
| Jinsong Xiao | Chief Executive Officer | 117,948 | 0 | 30 Sep, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 31 Mar, 2026 | Samuel Williams Johnson | Common Stock | D | 1,476 | $62.18 | 10,869 | D | F |
| 27 Feb, 2026 | Clarence L Granger | Common Stock | D | 6,000 | $0.00 | 111,817 | D | G |
| 03 Dec, 2025 | David T Ibnale | Common Stock | D | 23,500 | $26.63 | 45,241 | D | S |
| 02 Dec, 2025 | Clarence L Granger | Common Stock | D | 1,000 | $0.00 | 117,817 | D | G |
| 25 Nov, 2025 | Clarence L Granger | Common Stock | D | 3,000 | $0.00 | 118,817 | D | G |
| 26 Sep, 2025 | Jinsong Xiao | Common Stock | A | 117,948 | $0.00 | 117,948 | D | A |
| 26 Sep, 2025 | Jinsong Xiao | Common Stock | A | 117,948 | $0.00 | 117,948 | D | A |
| 12 Sep, 2025 | Clarence L Granger | Common Stock | D | 9,938 | $25.23 | 121,817 | D | F |
| 29 Aug, 2025 | Christopher S Cook | Common Stock | A | 73,686 | $0.00 | 130,015 | D | A |
| 30 Jun, 2025 | Harjinder Bajwa | Common Stock | D | 4,534 | $22.57 | 76,693 | D | F |
| 30 Jun, 2025 | Brian E Harding | Common Stock | D | 4,198 | $22.57 | 48,237 | D | F |
| 06 Jun, 2025 | Paul Yoonku Cho | Common Stock | D | 4,084 | $21.06 | 23,345 | D | S |
| 04 Jun, 2025 | Jeffrey L. Mckibben | Common Stock | D | 6,294 | $20.87 | 21,996 | D | S |
| 21 May, 2025 | Joanne Solomon | Common Stock | A | 8,198 | $0.00 | 9,508 | D | A |
| 21 May, 2025 | Thomas T Edman | Common Stock | A | 8,198 | $0.00 | 46,041 | D | A |
| 21 May, 2025 | Emily M Liggett | Common Stock | A | 8,198 | $0.00 | 43,775 | D | A |
| 21 May, 2025 | David T Ibnale | Common Stock | A | 8,198 | $0.00 | 68,741 | D | A |
| 21 May, 2025 | Ernest E Maddock | Common Stock | A | 8,198 | $0.00 | 45,241 | D | A |
| 21 May, 2025 | Jacqueline A. Seto | Common Stock | A | 8,198 | $0.00 | 28,950 | D | A |
| 21 May, 2025 | Clarence L Granger | Common Stock | A | 8,198 | $0.00 | 131,755 | D | A |