Updated Jul 16, 2026 · Last SEC filing 2026-07-07
Ultra Clean Holdings, Inc. (UCTT) has filed 34 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-07. 5 Form 8-K material event filings were reported by UCTT in the last 90 days. 13 Form 144 notices of proposed sale were filed for UCTT stock. InsiderAlpha tracks every UCTT SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001275014 |
|---|
| Form 4 filings (90d) | 34 |
|---|---|
| Form 8-K filings (90d) | 5 |
| Form 144 notices (90d) | 13 |
| Latest Form 4 filing | 2026-07-07 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 1.2K | $130.12 | $157K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 2.2K | $128.37 | $282K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 440 | $126.92 | $56K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | A — Grant or award | 9.4K | $0.00 | — | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 54 | $86.00 | $5K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 389 | $91.59 | $36K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 226 | $87.71 | $20K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 1.9K | $88.74 | $172K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 1.9K | $90.79 | $170K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 1.4K | $89.73 | $126K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 488 | $87.25 | $43K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 1.2K | $88.47 | $106K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 886 | $89.36 | $79K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 1.3K | $90.73 | $116K | SEC | |
| HARDING BRIAN E | Chief Accounting Officer | S — Open-market sale | 196 | $85.86 | $17K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Ultra Clean Holdings, Inc. (UCTT). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Savage Sheri | 33 | $2.22M |
| HARDING BRIAN E | 31 | $2.93M |
| Cook Christopher S | 7 | $2.46M |
| Cho Paul Yoonku | 6 | $688K |
| McKibben Jeffrey L. | 6 | $890K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in UCTT insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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