Jinsong Xiao - Sep 26, 2025 Form 4 Insider Report for Ultra Clean Holdings, Inc. (UCTT)

Role
Chief Executive Officer
Signature
/s/ Paul Y. Cho, as attorney-in-fact for Jinsong Xiao
Stock symbol
UCTT
Transactions as of
Sep 26, 2025
Transactions value $
$0
Form type
4
Date filed
9/30/2025, 09:41 PM
Previous filing
Sep 16, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Xiao Jinsong Chief Executive Officer ULTRA CLEAN HOLDINGS, INC., 26462 CORPORATE AVE., HAYWARD /s/ Paul Y. Cho, as attorney-in-fact for Jinsong Xiao 2025-09-30 0002086234

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction UCTT Common Stock Award $0 +118K $0.00 118K Sep 26, 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of September 26, 2025.