UCTT — Ultra Clean Holdings, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
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Measured signals that fired on UCTT
| date | signal | measured base rate |
|---|---|---|
| 2026-08-20 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-07-31 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-28 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-06-24 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-06-09 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-06-03 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-07-02 | HARDING BRIAN E Chief Accounting Officer | Open-market sale 10b5-1 plan | 2.2K | 128.37 | 281.6K |
| 2026-07-02 | HARDING BRIAN E Chief Accounting Officer | Open-market sale 10b5-1 plan | 1.2K | 130.12 | 156.5K |
| 2026-07-02 | HARDING BRIAN E Chief Accounting Officer | Open-market sale 10b5-1 plan | 440 | 126.92 | 55.8K |
| 2026-06-26 | HARDING BRIAN E Chief Accounting Officer | Grant or award | 9.4K | 0.00 | 0 |
| 2026-06-04 | Savage Sheri CFO | Open-market sale 10b5-1 plan | 3.1K | 88.69 | 272.1K |
| 2026-06-04 | Savage Sheri CFO | Open-market sale 10b5-1 plan | 2.9K | 90.79 | 262.7K |
| 2026-06-04 | HARDING BRIAN E Chief Accounting Officer | Open-market sale 10b5-1 plan | 1.9K | 88.74 | 171.5K |
| 2026-06-04 | Savage Sheri CFO | Open-market sale 10b5-1 plan | 1.9K | 89.70 | 171.0K |
| 2026-06-04 | HARDING BRIAN E Chief Accounting Officer | Open-market sale 10b5-1 plan | 1.9K | 90.79 | 170.3K |
| 2026-06-04 | Savage Sheri CFO | Open-market sale 10b5-1 plan | 1.7K | 90.99 | 155.2K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 424.9M | 6.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 174.2M | 2.8M |
| VANGUARD CAPITAL MANAGEMENT LLC | 119.2M | 1.9M |
| STATE STREET CORP | 114.3M | 1.8M |
| FRONTIER CAPITAL MANAGEMENT CO LLC | 111.1M | 1.8M |
| Invesco Ltd. | 103.2M | 1.7M |
| Boston Partners | 91.4M | 1.5M |
| D. E. Shaw & Co., Inc. | 73.6M | 1.2M |
| GEODE CAPITAL MANAGEMENT, LLC | 70.9M | 1.1M |
| Driehaus Capital Management LLC | 66.1M | 1.1M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 8-K | 2026-08-14 | 2026-08-14 | on EDGAR ↗ |
| 424B5 | 2026-08-14 | — | on EDGAR ↗ |
| SCHEDULE 13G | 2026-08-13 | — | on EDGAR ↗ |
| SCHEDULE 13G | 2026-08-12 | — | on EDGAR ↗ |
| 8-K | 2026-08-06 | 2026-08-04 | on EDGAR ↗ |
| 10-Q | 2026-08-04 | 2026-06-26 | on EDGAR ↗ |
| 8-K | 2026-08-03 | 2026-08-03 | on EDGAR ↗ |
| SCHEDULE 13G | 2026-07-31 | — | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Ultra Clean Holdings, Inc. (UCTT) filed form 8-K · 2026-08-14 · SEC EDGAR
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