| $255M | ||
| $48M | ||
| $38M | ||
| $37M | ||
| $34M | ||
| $34M |
Buys | $0 | 0 | 0 |
Sells | $13,465,818 | 16 | 100 |
| Cho Paul Yoonku | General Counsel and Secretary | 0 | $0 | 2 | $258,145 | $-258,145 |
| McKibben Jeffrey L. | Chief Information Officer | 0 | $0 | 2 | $582,031 | $-582,031 |
| IBNALE DAVID T | director | 0 | $0 | 1 | $625,749 | $-625,749 |
| Palfrey Jamie J. | SVP, Global Human Resources | 0 | $0 | 1 | $692,890 | $-692,890 |
| LIGGETT EMILY M | director | 0 | $0 | 1 | $755,692 | $-755,692 |
| Cook Christopher S | President, Products Division | 0 | $0 | 2 | $1.75M | $-1.75M |
| GRANGER CLARENCE L | director | 0 | $0 | 1 | $2.26M | $-2.26M |
| HARDING BRIAN E | Chief Accounting Officer | 0 | $0 | 3 | $2.33M | $-2.33M |
| Savage Sheri | CFO | 0 | $0 | 3 | $4.21M | $-4.21M |
Ultra Clean Holdings, Inc. specializes in providing essential subsystems, intricate components, precision parts, and rigorous ultra-high purity cleaning and sophisticated analytical verification services. The company primarily caters to the global semiconductor sector, operating across the U.S. and internationally. Their extensive product portfolio includes ultra-clean valves, high-purity and industrial process connectors, pneumatic actuators, manifolds, safety solutions, hoses, pressure gauges, and heaters for gas lines and components. They …
Over the last 12 months, insiders at Ultra Clean Holdings, Inc. have bought $0 and sold $13.47M worth of Ultra Clean Holdings, Inc. stock.
On average, over the past 5 years, insiders at Ultra Clean Holdings, Inc. have bought $502,742 and sold $4.8M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 1,000 shares for transaction amount of $25,150 was made by GRANGER CLARENCE L (director) on 2025‑03‑07.
| 2026-07-02 | Sale | HARDING BRIAN E | Chief Accounting Officer | 3,837 0.0104% | $128.75 | $494,020 | -29.68% | |
| 2026-06-04 | Sale | Savage Sheri | CFO | 4,493 0.0096% | $89.43 | $401,831 | -16.67% | |
| 2026-06-04 | Sale | Savage Sheri | CFO | 12,455 0.0264% | $89.19 | $1.11M | -16.67% | |
| 2026-06-04 | Sale | Savage Sheri | CFO | 30,187 0.0643% | $89.46 | $2.7M | -16.67% | |
| 2026-06-04 | Sale | HARDING BRIAN E | Chief Accounting Officer | 16,988 0.0362% | $89.47 | $1.52M | -16.67% | |
| 2026-06-02 | Sale | Cho Paul Yoonku | General Counsel and Secretary | 944 0.0021% | $89.37 | $84,365 | -12.83% | |
| 2026-05-27 | Sale | LIGGETT EMILY M | director | 8,198 0.0184% | $92.18 | $755,692 | -12.14% | |
| 2026-05-14 | Sale | McKibben Jeffrey L. | Chief Information Officer | 4,205 0.0094% | $87.00 | $365,835 | -6.71% | |
| 2026-05-08 | Sale | Cho Paul Yoonku | General Counsel and Secretary | 2,000 0.0045% | $86.89 | $173,780 | -6.06% | |
| 2026-05-08 | Sale | McKibben Jeffrey L. | Chief Information Officer | 2,500 0.0055% | $86.48 | $216,196 | -6.06% | |
| 2026-05-05 | Sale | HARDING BRIAN E | Chief Accounting Officer | 4,000 0.0086% | $80.00 | $320,000 | -1.44% | |
| 2026-05-05 | Sale | Palfrey Jamie J. | SVP, Global Human Resources | 8,691 0.0186% | $79.72 | $692,890 | -1.44% | |
| 2026-05-04 | Sale | Cook Christopher S | President, Products Division | 11,478 0.0259% | $73.96 | $848,922 | +12.26% | |
| 2026-05-01 | Sale | GRANGER CLARENCE L | director | 30,000 0.0675% | $75.30 | $2.26M | +9.83% | |
| 2026-04-30 | Sale | Cook Christopher S | President, Products Division | 11,903 0.0274% | $75.31 | $896,415 | +4.70% | |
| 2025-12-03 | Sale | IBNALE DAVID T | director | 23,500 0.0514% | $26.63 | $625,749 | +165.56% | |
| 2025-06-06 | Sale | Cho Paul Yoonku | General Counsel and Secretary | 4,084 0.0092% | $21.06 | $86,011 | +36.08% | |
| 2025-06-04 | Sale | McKibben Jeffrey L. | Chief Information Officer | 6,294 0.0138% | $20.87 | $131,356 | +33.46% | |
| 2025-05-06 | Sale | Palfrey Jamie J. | SVP, Global Human Resources | 9,500 0.021% | $19.20 | $182,372 | +36.92% | |
| 2025-03-07 | Bentinck Bill | President, Services Business | 3,000 0.0067% | $25.17 | $75,510 | -1.64% |
| Cook Christopher S | President, Products Division | 97427 0.2031% | $4.68M | 1 | 4 | <0.0001% |
| GRANGER CLARENCE L | director | 81817 0.1706% | $3.93M | 4 | 121 | +10.54% |
| IBNALE DAVID T | director | 45241 0.0943% | $2.17M | 2 | 7 | <0.0001% |
| HARDING BRIAN E | Chief Accounting Officer | 33581 0.07% | $1.61M | 1 | 4 | <0.0001% |
| MARXE AUSTIN W & GREENHOUSE DAVID M | 10 percent owner | 2640275 5.5051% | $126.79M | 1 | 11 | +201.35% |
| Scholhamer James P | CEO | 418453 0.8725% | $20.09M | 3 | 3 | <0.0001% |
| ADDIEGO GINETTO | President & COO | 370643 0.7728% | $17.8M | 5 | 0 | +29.1% |
| EICHLER KEVIN C | President, CFO | 294465 0.614% | $14.14M | 6 | 4 | +45.2% |
| Speirs David | SVP, North America | 100879 0.2103% | $4.84M | 1 | 5 | +55.91% |
| Bentinck Bill | President, Services Business | 60695 0.1266% | $2.91M | 1 | 2 | <0.0001% |
| Bajwa Harjinder | Chief Operating Officer | 54291 0.1132% | $2.61M | 3 | 0 | <0.0001% |
| BILLAT SUSAN | director | 48358 0.1008% | $2.32M | 1 | 1 | +20.04% |
| SEXTON JACK | Chief Financial Officer | 27500 0.0573% | $1.32M | 1 | 2 | +231.62% |
| MADDOCK ERNEST E | director | 11000 0.0229% | $528,220.00 | 2 | 0 | <0.0001% |
| KAGEL PHILLIP A | Chief Financial Officer | 5000 0.0104% | $240,100.00 | 1 | 0 | +18.1% |
$51,368,869 | 76 | 0.70% | $320.07B | |
$41,019,040 | 35 | 51.90% | $4,981.23B | |
$13,184,403 | 24 | 12.48% | $203.42B | |
$14,781,792 | 22 | 15.65% | $789.95B | |
$219,947,632 | 18 | 12.49% | $1,585.47B |
| Increased Positions | 111 | +39.5% | 5M | +11.18% |
| Decreased Positions | 119 | -42.35% | 4M | -9.97% |
| New Positions | 28 | New | 506,249 | New |
| Sold Out Positions | 30 | Sold Out | 377,423 | Sold Out |
| Total Postitions | 273 | -2.85% | 43M | +1.21% |
| Blackrock, Inc. | $183,281.00 | 14.91% | 6.71M | -76,168 | -1.12% | 2025-09-30 |
| Vanguard Group Inc | $128,341.00 | 10.44% | 4.7M | +67,520 | +1.46% | 2025-09-30 |
| Shapiro Capital Management Llc | $100,812.00 | 8.2% | 3.69M | -454,845 | -10.97% | 2025-09-30 |
| Frontier Capital Management Co Llc | $82,869.00 | 6.74% | 3.03M | +279,107 | +10.13% | 2025-09-30 |
| Invesco Ltd. | $56,947.00 | 4.63% | 2.08M | +170,851 | +8.93% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $53,072.00 | 4.32% | 1.94M | -197,343 | -9.22% | 2025-09-30 |
| State Street Corp | $48,208.00 | 3.92% | 1.76M | +27,249 | +1.57% | 2025-09-30 |
| Geode Capital Management, Llc | $30,548.00 | 2.49% | 1.12M | -4,760 | -0.42% | 2025-09-30 |
| Royce & Associates Lp | $30,255.00 | 2.46% | 1.11M | +73,872 | +7.15% | 2025-09-30 |
| Divisar Capital Management Llc | $28,756.00 | 2.34% | 1.05M | -364,480 | -25.72% | 2025-09-30 |