Ultra Clean Holdings, Inc.
Ultra Clean Holdings, Inc. (UCTT) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · UCTT · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
14
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Ultra Clean Holdings, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
UCTT insider buying and selling by quarter
UCTT insider selling · UCTT insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · UCTT ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
UCTT executive sell shares · UCTT board member insider trading · UCTT insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Jun 2, 2026 | Cho Paul Yoonku General Counsel and Secretary | Sale | 944 | $84K | Form 4 |
| May 22, 2026 | Cook Christopher S President, Products Division | Award | 13,196 | — | Form 4 |
| May 22, 2026 | Cho Paul Yoonku General Counsel and Secretary | Award | 8,041 | — | Form 4 |
| May 22, 2026 | Xiao Jinsong CEO | Award | 31,175 | — | Form 4 |
| May 22, 2026 | Solomon Joanne Director | Award | 2,575 | — | Form 4 |
| May 22, 2026 | McKibben Jeffrey L. Chief Information Officer | Award | 5,896 | — | Form 4 |
| May 22, 2026 | Seto Jacqueline A. Director | Award | 2,575 | — | Form 4 |
| May 22, 2026 | Palfrey Jamie J. SVP, Global Human Resources | Award | 9,897 | — | Form 4 |
| May 22, 2026 | MADDOCK ERNEST E Director | Award | 2,575 | — | Form 4 |
| May 22, 2026 | Wunar Robert Anthony COO | Award | 10,732 | — | Form 4 |
| May 22, 2026 | LIGGETT EMILY M Director | Award | 2,575 | — | Form 4 |
| May 27, 2026 | LIGGETT EMILY M Director | Sale | 8,198 | $756K | Form 4 |
| May 22, 2026 | Johnson Samuel Williams SVP, Services Business | Award | 5,567 | — | Form 4 |
| May 22, 2026 | IBNALE DAVID T Director | Award | 2,575 | — | Form 4 |
| May 22, 2026 | Savage Sheri CFO | Award | 26,392 | — | Form 4 |
| May 22, 2026 | GRANGER CLARENCE L Director | Award | 2,575 | — | Form 4 |
| May 22, 2026 | HARDING BRIAN E CAO | Award | 8,412 | — | Form 4 |
| May 22, 2026 | EDMAN THOMAS T Director | Award | 2,575 | — | Form 4 |
| May 14, 2026 | McKibben Jeffrey L. Chief Information Officer | Sale | 4,205 | $366K | Form 4 |
| May 8, 2026 | Cho Paul Yoonku General Counsel and Secretary | Sale | 2,000 | $174K | Form 4 |
| May 8, 2026 | McKibben Jeffrey L. Chief Information Officer | Sale | 2,500 | $216K | Form 4 |
| May 5, 2026 | Palfrey Jamie J. SVP, Global Human Resources | Sale | 8,691 | $693K | Form 4 |
| May 5, 2026 | HARDING BRIAN E CAO | Sale | 4,000 | $320K | Form 4 |
| May 4, 2026 | Cook Christopher S President, Products Division | Sale | 10,247 | $757K | Form 4 |
| May 4, 2026 | Cook Christopher S President, Products Division | Sale | 1,231 | $92K | Form 4 |
Cho Paul Yoonku
General Counsel and Secretary
Date
Jun 2
Shares
944
Price
$89.37
Value
$84K
Cook Christopher S
President, Products Division
Date
May 22
Shares
13,196
Price
—
Value
—
Cho Paul Yoonku
General Counsel and Secretary
Date
May 22
Shares
8,041
Price
—
Value
—
McKibben Jeffrey L.
Chief Information Officer
Date
May 22
Shares
5,896
Price
—
Value
—
Palfrey Jamie J.
SVP, Global Human Resources
Date
May 22
Shares
9,897
Price
—
Value
—
Johnson Samuel Williams
SVP, Services Business
Date
May 22
Shares
5,567
Price
—
Value
—
McKibben Jeffrey L.
Chief Information Officer
Date
May 14
Shares
4,205
Price
$87.00
Value
$366K
Cho Paul Yoonku
General Counsel and Secretary
Date
May 8
Shares
2,000
Price
$86.89
Value
$174K
McKibben Jeffrey L.
Chief Information Officer
Date
May 8
Shares
2,500
Price
$86.48
Value
$216K
Palfrey Jamie J.
SVP, Global Human Resources
Date
May 5
Shares
8,691
Price
$79.72
Value
$693K
Cook Christopher S
President, Products Division
Date
May 4
Shares
10,247
Price
$73.89
Value
$757K
Cook Christopher S
President, Products Division
Date
May 4
Shares
1,231
Price
$74.55
Value
$92K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About UCTT insider trading
UCTT insider trades
Ultra Clean Holdings, Inc. (UCTT) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including GRANGER CLARENCE L (Director), Cook Christopher S (President, Products Division), Cho Paul Yoonku (General Counsel and Secretary). Over the past 12 months, 5 insiders have filed transactions with the SEC. UCTT insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Ultra Clean Holdings, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
UCTT insider trading · 5 questionsThe insiders of Ultra Clean Holdings, Inc. (UCTT) include executives and directors such as GRANGER CLARENCE L (Director), Cook Christopher S (President, Products Division), Cho Paul Yoonku (General Counsel and Secretary), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026