UCTT · Insider Trading
Ultra Clean Holdings, Inc.
Every open-market purchase and sale reported by UCTT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-02 | Jinsong Xiao | Chief Executive Officer | F | −19,188 | −$1.56M |
| 2026-09-04 | Michael Dennis Keogh | Chief Financial Officer | A | +20,917 | — |
| 2026-09-02 | Christopher S Cook | President, Products Division | F | −12,497 | −$847.67K |
| 2026-07-07 | Brian E Harding | Chief Accounting Officer | Sell | −3,837 | −$494.02K |
| 2026-06-09 | Sheri Savage | CFO | Sell | −14,421 | −$1.29M |
| 2026-06-09 | Sheri Savage | CFO | Sell | −15,766 | −$1.41M |
| 2026-06-08 | Brian E Harding | Chief Accounting Officer | Sell | −16,988 | −$1.52M |
| 2026-06-04 | Paul Yoonku Cho | General Counsel and Secretary | Sell | −944 | −$84.37K |
| 2026-05-27 | Jinsong Xiao | Chief Executive Officer | A | +31,175 | — |
| 2026-05-27 | Jacqueline A. Seto | Director | A | +2,575 | — |
| 2026-05-27 | Samuel Williams Johnson | SVP, Services Business | A | +5,567 | — |
| 2026-05-27 | Sheri Savage | CFO | A | +26,392 | — |
| 2026-05-27 | Robert Anthony Wunar | Chief Operating Officer | A | +10,732 | — |
| 2026-05-27 | Thomas T Edman | Director | A | +2,575 | — |
| 2026-05-27 | Paul Yoonku Cho | General Counsel and Secretary | A | +8,041 | — |
| 2026-05-27 | Ernest E Maddock | Director | A | +2,575 | — |
| 2026-05-27 | Jeffrey L. McKibben | Chief Information Officer | A | +5,896 | — |
| 2026-05-27 | Clarence L Granger | Director | A | +2,575 | — |
| 2026-05-27 | Christopher S Cook | President, Products Division | A | +13,196 | — |
| 2026-05-27 | Joanne Solomon | Director | A | +2,575 | — |
| 2026-05-27 | Brian E Harding | Chief Accounting Officer | A | +8,412 | — |
| 2026-05-27 | Emily M Liggett | Director | MIXED | −5,623 | −$755.69K |
| 2026-05-27 | Jamie J. Palfrey | SVP, Global Human Resources | A | +9,897 | — |
| 2026-05-27 | David T Ibnale | Director | A | +2,575 | — |
| 2026-05-18 | Jeffrey L. McKibben | Chief Information Officer | Sell | −4,205 | −$365.83K |
| 2026-05-12 | Paul Yoonku Cho | General Counsel and Secretary | Sell | −2,000 | −$173.78K |
| 2026-05-12 | Jeffrey L. McKibben | Chief Information Officer | Sell | −2,500 | −$216.20K |
| 2026-05-07 | Jamie J. Palfrey | SVP, Global Human Resources | Sell | −8,691 | −$692.89K |
| 2026-05-07 | Brian E Harding | Chief Accounting Officer | Sell | −4,000 | −$320.00K |
| 2026-05-06 | Christopher S Cook | President, Products Division | Sell | −11,478 | −$848.92K |
| 2026-05-05 | Clarence L Granger | Director | Sell | −30,000 | −$2.26M |
| 2026-05-04 | Sheri Savage | CFO | F | −11,876 | −$928.11K |
| 2026-05-04 | Jeffrey L. McKibben | Chief Information Officer | F | −3,942 | −$308.07K |
| 2026-05-04 | Paul Yoonku Cho | General Counsel and Secretary | F | −5,501 | −$429.90K |
| 2026-05-04 | Brian E Harding | Chief Accounting Officer | F | −7,606 | −$594.41K |
| 2026-05-04 | Jamie J. Palfrey | SVP, Global Human Resources | F | −5,328 | −$416.38K |
| 2026-05-04 | Christopher S Cook | President, Products Division | MIXED | −21,110 | −$1.62M |
| 2026-04-02 | Samuel Williams Johnson | SVP, Services Business | F | −1,476 | −$91.78K |
| 2026-03-03 | Clarence L Granger | Director | G | −6,000 | — |
| 2025-12-05 | David T Ibnale | Director | Sell | −23,500 | −$625.75K |
| 2025-12-04 | Clarence L Granger | Director | G | −1,000 | — |
| 2025-11-28 | Clarence L Granger | Director | G | −3,000 | — |
| 2025-09-30 | Jinsong Xiao | Chief Executive Officer | A | +117,948 | — |
| 2025-09-16 | Clarence L Granger | Director | F | −9,938 | −$250.74K |
| 2025-09-03 | Christopher S Cook | President, Products Division | A | +73,686 | — |
| 2025-07-02 | Harjinder Bajwa | Chief Operating Officer | F | −4,534 | −$102.33K |
| 2025-07-02 | Brian E Harding | Chief Accounting Officer | F | −4,198 | −$94.75K |
| 2025-06-10 | Paul Yoonku Cho | General Counsel and Secretary | Sell | −4,084 | −$86.01K |
| 2025-06-06 | Jeffrey L. McKibben | Chief Information Officer | Sell | −6,294 | −$131.36K |
| 2025-05-27 | Joanne Solomon | Director | A | +8,198 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Jinsong Xiao | Chief Executive Officer | 129,935 | $5.92M |
| Christopher S Cook | President, Products Division | 102,226 | $4.66M |
| Clarence L Granger | Director | 85,392 | $3.89M |
| Harjinder Bajwa | Chief Operating Officer | 76,693 | $3.49M |
| Bill Bentinck | President, Services Business | 73,924 | $3.37M |
| Sheri Savage | CFO | 61,508 | $2.80M |
| Ernest E Maddock | Director | 58,816 | $2.68M |
| Thomas T Edman | Director | 48,616 | $2.21M |
| David T Ibnale | Director | 47,816 | $2.18M |
| Emily M Liggett | Director | 46,350 | $2.11M |
| Brian E Harding | Chief Accounting Officer | 34,784 | $1.58M |
| Jacqueline A. Seto | Director | 31,525 | $1.44M |
| Jamie J. Palfrey | SVP, Global Human Resources | 26,343 | $1.20M |
| Paul Yoonku Cho | General Counsel and Secretary | 22,941 | $1.04M |
| Michael Dennis Keogh | Chief Financial Officer | 20,917 | $952.56K |
| Jeffrey L. McKibben | Chief Information Officer | 17,245 | $785.34K |
| Samuel Williams Johnson | SVP, Services Business | 16,436 | $748.50K |
| Joanne Solomon | Director | 12,083 | $550.26K |
| Robert Anthony Wunar | Chief Operating Officer | 10,732 | $488.74K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the UCTT quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.