Transaction · 0000950103-26-013530

Cook Christopher S

Cook Christopher S, PRES, PD, reported a transaction classified as withholding at Ultra Clean Holdings, Inc. involving 12497.000000 shares for an estimated $847671.51. Reported holdings after the transaction were 98126.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FPRES, PD
UCTTUltra Clean Holdings, Inc.
Filing timeSep 03
Trade dateAug 31, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$66.06
Pre-filing
1mo ago +26.1%1w ago +10.2%1d ago +5.2%
Returns since
7d +0.0%30d +0.0%90d +0.0%180d +0.0%1y +0.0%

UCTT price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
UCTT since 2026-09-03Filed today · pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0000950103-26-013530
Common Stock
Transaction date
Aug 31, 2026
Filed Sep 03, 2026, 12:36 AM · 3d delay
Shares
12.4k sh
$6.78k per share
Estimated value
-$84.7M
Computed from shares × price
Holdings after
98.1k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
-16score
Filing-only score

-16

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

President, Products Division

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

Original filing · 0000950103-26-013530
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Same reporting owner
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