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UCTT Insider Trading & Form 4 Activity

Ultra Clean Holdings, Inc.
Last filing: Jun 9, 2026·1 day ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$6.2M
69 sells
-$6.2M
net selling
6
insiders
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ACTIVE SELLING CLUSTER

4 insiders sold a combined $4.9M of UCTT between May 27, 2026 and Jun 4, 2026.

LIGGETT EMILY M, Cho Paul Yoonku, Savage Sheri, HARDING BRIAN E

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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Savage Sheri
CFO
$2.5M
-$2.5M
GRANGER CLARENCE L
Insider
$2.3M
-$2.3M
HARDING BRIAN E
Chief Accounting Officer
$1.5M
-$1.5M
LIGGETT EMILY M
Insider
$756K
-$756K
Palfrey Jamie J.
SVP, Global Human Resources
$693K
-$693K
McKibben Jeffrey L.
Chief Information Officer
$582K
-$582K
Cho Paul Yoonku
General Counsel and Secretary
$84K
-$84K
Xiao Jinsong
Chief Executive Officer
$0

Recent transactions

Every Form 4 transaction for UCTT, newest first.

SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
259 sh @ $89.97
$23K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
419 sh @ $88.73
$37K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
936 sh @ $90.40
$85K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
160 sh @ $87.52
$14K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
935 sh @ $89.22
$83K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
600 sh @ $87.37
$52K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
1,070 sh @ $88.69
$95K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
688 sh @ $89.78
$62K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
972 sh @ $90.89
$88K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
172 sh @ $91.70
$16K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
40 sh @ $86.00
$3K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
120 sh @ $87.43
$10K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
360 sh @ $88.85
$32K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
150 sh @ $89.91
$13K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
301 sh @ $90.98
$27K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
20 sh @ $91.78
$2K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
321 sh @ $88.80
$29K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
157 sh @ $89.59
$14K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
260 sh @ $90.76
$24K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
91 sh @ $91.63
$8K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
396 sh @ $87.24
$35K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
988 sh @ $88.29
$87K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
50 sh @ $86.00
$4K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
825 sh @ $91.29
$75K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
1,706 sh @ $90.99
$155K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
852 sh @ $89.95
$77K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
1,429 sh @ $88.16
$126K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
488 sh @ $87.07
$42K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
171 sh @ $91.68
$16K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
763 sh @ $90.86
$69K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
446 sh @ $89.73
$40K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
907 sh @ $88.75
$80K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
392 sh @ $87.72
$34K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
96 sh @ $85.54
$8K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
784 sh @ $91.63
$72K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
2,894 sh @ $90.79
$263K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
1,906 sh @ $89.70
$171K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
3,068 sh @ $88.69
$272K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
1,570 sh @ $87.59
$138K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
200 sh @ $86.18
$17K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
18 sh @ $91.76
$2K
SELL
Savage Sheri · CFO
Tx Jun 4·Filed Jun 9·EDGAR ↗
358 sh @ $91.03
$33K
SELL
HARDING BRIAN E · Chief Accounting Officer
Tx Jun 4·Filed Jun 8·EDGAR ↗
986 sh @ $90.55
$89K
SELL
HARDING BRIAN E · Chief Accounting Officer
Tx Jun 4·Filed Jun 8·EDGAR ↗
196 sh @ $85.86
$17K
SELL
HARDING BRIAN E · Chief Accounting Officer
Tx Jun 4·Filed Jun 8·EDGAR ↗
1,176 sh @ $87.72
$103K
SELL
HARDING BRIAN E · Chief Accounting Officer
Tx Jun 4·Filed Jun 8·EDGAR ↗
1,933 sh @ $88.74
$172K
SELL
HARDING BRIAN E · Chief Accounting Officer
Tx Jun 4·Filed Jun 8·EDGAR ↗
1,407 sh @ $89.73
$126K
SELL
HARDING BRIAN E · Chief Accounting Officer
Tx Jun 4·Filed Jun 8·EDGAR ↗
1,876 sh @ $90.79
$170K
SELL
HARDING BRIAN E · Chief Accounting Officer
Tx Jun 4·Filed Jun 8·EDGAR ↗
636 sh @ $91.65
$58K
SELL
HARDING BRIAN E · Chief Accounting Officer
Tx Jun 4·Filed Jun 8·EDGAR ↗
488 sh @ $87.25
$43K

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About UCTT insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for UCTT from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying UCTT always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on Ultra Clean Holdings, Inc. (UCTT) when they form.

Where does UCTT insider trading data come from?

Every Form 4 filing for UCTT is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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