SEC Form 4 · Updated Daily
UCTT
— ULTRA CLEAN HOLDINGS, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| FP ULTRA CLEAN LLC | 10%+ Owner | 4,167,400 | 2006-03-15 | S |
| HLHZ AIT Holdings, L.L.C. | 10%+ Owner | 2,838,044 | 2014-02-19 | S |
| AIT HOLDING CO LLC | 10%+ Owner | 2,838,044 | 2014-02-19 | S |
| MARXE AUSTIN W & GREENHOUSE DAVID M | 10%+ Owner | 2,640,275 | 2012-04-23 | S |
| FRANCISCO PARTNERS LP | 10%+ Owner | 1,924,935 | 2007-02-16 | S |
| Leonid & Inna Mezhvinsky as Trustees of the Revocable Trust Agreement of Leonid Mezhvinsky & Inna Mezhvinsky, Dated April 26, 1988 | 10%+ Owner | 1,883,390 | 2006-11-29 | J |
| Joe & Jenny Chen as Trustees of the Joe Chen & Jenny Chen Revocable Trust Dated 2002 | 10%+ Owner | 497,779 | 2006-11-29 | J |
| Scholhamer James P | Director · Officer | 418,453 | 2024-07-09 | S |
| ADDIEGO GINETTO | Officer | 396,816 | 2014-03-08 | F |
| EICHLER KEVIN C | Officer | 390,022 | 2016-03-27 | F |
| Chinnasami Vijayan S. | Officer | 184,342 | 2023-04-28 | A |
| Xiao Jinsong | Officer | 129,935 | 2026-09-30 | F |
| LEV LAVI | Officer | 122,715 | 2018-04-28 | F |
| Savage David | Officer | 110,001 | 2010-07-29 | M |
| Moreman Frank | 10%+ Owner | 107,925 | 2006-11-29 | J |
| Speirs David | Officer | 106,055 | 2018-09-25 | F |
| Cook Christopher S | Officer | 98,126 | 2026-08-31 | F |
| GRANGER CLARENCE L | Director | 84,392 | 2026-05-22 | A |
| Savage Sheri | Director | 80,297 | 2026-06-04 | S |
| Bajwa Harjinder | Officer | 76,693 | 2025-06-30 | F |
| Bentinck Bill | Officer | 73,924 | 2025-04-30 | F |
| CHENAULT JOHN | Director | 61,000 | 2015-06-04 | A |
| BILLAT SUSAN | Director | 56,358 | 2014-05-21 | A |
| HAYWARD DEBORAH E | Officer | 56,028 | 2018-04-28 | F |
| Nicholas Scott H. | Officer | 55,151 | 2018-10-30 | — |
| D'Ercole Ronald | Officer | 54,995 | 2018-10-27 | F |
| Bingaman Mark | Officer | 54,481 | 2018-10-27 | F |
| SCHERER BARBARA VAUGHN | Director | 53,543 | 2024-05-22 | A |
| EDMAN THOMAS T | Director | 48,616 | 2026-05-22 | A |
| MADDOCK ERNEST E | Director | 47,816 | 2026-05-22 | A |
| IBNALE DAVID T | Director | 47,816 | 2026-05-22 | A |
| LIGGETT EMILY M | Director | 46,350 | 2026-05-22 | A |
| Sterling Joan | Officer | 44,291 | 2021-04-30 | A |
| Siu Chris | Officer | 44,092 | 2022-05-06 | A |
| WILLIAMS WILLIAM JOE | Officer | 42,387 | 2022-04-29 | A |
| Victor Mezhvinsky as Trustee of the Joshua Mezhvinsky 2002 Irrevocable Trust Under Agreement Dated June 4, 2004 | 10%+ Owner | 42,173 | 2006-11-29 | J |
| Mezhvinsky Victor | 10%+ Owner | 42,173 | 2006-11-29 | J |
| HARDING BRIAN E | Officer | 36,978 | 2026-07-02 | S |
| Seto Jacqueline A. | Director | 31,525 | 2026-05-22 | A |
| WIER BRUCE C | Officer | 29,323 | 2016-02-27 | F |
| KRISHNAN SOWMYA | Officer | 28,950 | 2008-02-29 | A |
| SEXTON JACK | Officer | 27,500 | 2009-02-27 | P |
| Mezhvinsky Leonid | Director | 26,399 | 2019-11-04 | S |
| Palfrey Jamie J. | Officer | 26,343 | 2026-05-22 | A |
| Chen Minors Irrevocable Trust | 10%+ Owner | 25,953 | 2006-11-29 | J |
| Cho Paul Yoonku | Officer | 22,941 | 2026-06-02 | S |
| ROHRS THOMAS M | Director | 21,608 | 2007-11-30 | S |
| Keogh Michael Dennis | Officer | 20,917 | 2026-08-31 | A |
| McKibben Jeffrey L. | Officer | 17,245 | 2026-05-22 | A |
| Johnson Samuel Williams | Officer | 16,436 | 2026-05-22 | A |
| Widmann Amir | Officer | 14,462 | 2021-05-14 | A |
| Henderson Michael Roy | Officer | 13,810 | 2018-10-05 | S |
| BACHMAN BRIAN R | Director | 12,500 | 2008-06-05 | A |
| Solomon Joanne | Director | 12,083 | 2026-05-22 | A |
| Wunar Robert Anthony | Officer | 10,732 | 2026-05-22 | A |
| Andreson Jeff | Director · Officer | 7,500 | 2017-05-24 | A |
| CLEMENTS LINDA | Officer | 6,000 | 2009-04-15 | — |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-30 | Xiao Jinsong | Tax withholding | 19,188 | $81.06 | 129,935 |
| 2026-08-31 | Keogh Michael Dennis | Grant / award | 20,917 | $0.00 | 20,917 |
| 2026-08-31 | Cook Christopher S | Tax withholding | 12,497 | $67.83 | 98,126 |
| 2026-07-02 | HARDING BRIAN E | Open-market sale | 1,203 | $130.12 | 33,581 |
| 2026-07-02 | HARDING BRIAN E | Open-market sale | 2,194 | $128.37 | 34,784 |
| 2026-07-02 | HARDING BRIAN E | Open-market sale | 440 | $126.92 | 36,978 |
| 2026-06-26 | HARDING BRIAN E | Grant / award | 9,363 | $0.00 | 37,418 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 663 | $91.38 | 28,055 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 986 | $90.55 | 28,718 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 1,056 | $89.33 | 29,704 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 1,002 | $88.36 | 30,760 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 496 | $87.22 | 31,762 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 117 | $91.63 | 32,258 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 375 | $90.76 | 32,375 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 169 | $89.67 | 32,750 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 381 | $88.76 | 32,919 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 226 | $87.71 | 33,300 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 54 | $86.00 | 33,526 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 389 | $91.59 | 33,580 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 1,277 | $90.73 | 33,969 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 886 | $89.36 | 35,246 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 1,199 | $88.47 | 36,132 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 488 | $87.25 | 37,331 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 636 | $91.65 | 37,819 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 1,876 | $90.79 | 38,455 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 1,407 | $89.73 | 40,331 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 1,933 | $88.74 | 41,738 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 1,176 | $87.72 | 43,671 |
| 2026-06-04 | HARDING BRIAN E | Open-market sale | 196 | $85.86 | 44,847 |
| 2026-06-04 | Savage Sheri | Open-market sale | 784 | $91.63 | 50,710 |
| 2026-06-04 | Savage Sheri | Open-market sale | 2,894 | $90.79 | 51,494 |
| 2026-06-04 | Savage Sheri | Open-market sale | 1,906 | $89.70 | 54,388 |
| 2026-06-04 | Savage Sheri | Open-market sale | 3,068 | $88.69 | 56,294 |
| 2026-06-04 | Savage Sheri | Open-market sale | 1,570 | $87.59 | 59,362 |
| 2026-06-04 | Savage Sheri | Open-market sale | 200 | $86.18 | 60,932 |
| 2026-06-04 | Savage Sheri | Open-market sale | 18 | $91.76 | 61,132 |
| 2026-06-04 | Savage Sheri | Open-market sale | 358 | $91.03 | 61,150 |
| 2026-06-04 | Savage Sheri | Open-market sale | 259 | $89.97 | 61,508 |
| 2026-06-04 | Savage Sheri | Open-market sale | 419 | $88.73 | 61,767 |
| 2026-06-04 | Savage Sheri | Open-market sale | 160 | $87.52 | 62,186 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.