Ultra Clean Holdings, Inc.

UCTTReported to SECin USCIK 0001275014Filings at SEC EDGAR

No score on this page, by design. Everything here is a fact from a public U.S. register: insider filings at the SEC (Form 4), lobbying filings under the Lobbying Disclosure Act, trades reported by members of Congress under the STOCK Act, and fund holdings in 13F filings. Our scores, percentiles and signals run on the Dutch register only, because that is the only register the model has been validated on.

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Filings

Most recent filing first: every line of every Form 4 at this company that passed our review, the same lines as on the register. Reported is the day the filing reached the SEC, usually within two business days of the trade. Amounts are in U.S. dollars, as the form states them.

5
Form 4 lines at Ultra Clean Holdings, Inc., most recent filing first
Filed byTypeValueReportedFiled byValueTypeSharesReported
Keogh Michael DennisChief Financial OfficerAwardnothing paid20,917 sharesSep 4, 2026Keogh Michael DennisChief Financial Officernothing paidAward · Sep 4Award20,917Sep 4, 2026
Cook Christopher SPresident, Products DivisionAdministrative$847,67212,497 sharesSep 2, 2026Cook Christopher SPresident, Products Division$847,672Admin · Sep 2Administrative12,497Sep 2, 2026
HARDING BRIAN EChief Accounting OfficerOpen-market sell$156,5391,203 sharesJul 7, 2026HARDING BRIAN EChief Accounting Officer$156,539Sell · Jul 7Open-market sell1,203Jul 7, 2026
HARDING BRIAN EChief Accounting OfficerOpen-market sell$281,6382,194 sharesJul 7, 2026HARDING BRIAN EChief Accounting Officer$281,638Sell · Jul 7Open-market sell2,194Jul 7, 2026
HARDING BRIAN EChief Accounting OfficerOpen-market sell$55,843440 sharesJul 7, 2026HARDING BRIAN EChief Accounting Officer$55,843Sell · Jul 7Open-market sell440Jul 7, 2026