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Livermore
Livermore
ZHEN

Boston Partners

SEC CIK
0001386060
Latest filing
Aug 4, 2026

UCTT holding history

Ultra Clean Holdings, Inc. in every 13F filed by Boston Partners, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

UCTT overviewAll 13F holders of UCTTFull Q2 2026 holdings

Shares (Q2 2026)
1,360,211
Value
$191.9M
% of portfolio
0.2%
Quarters held
19
Since Q1 2021
Holdings of UCTT by Boston Partners, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,360,211$191.9M0.2%−108,667−7.4%ReducedHolders
Q1 20261,468,878$91.4M0.1%+1,468,878NewHolders
Q2 20250$00.0%−1,021,032−100.0%Sold outHolders
Q1 20251,021,032$21.4M<0.1%−14,182−1.4%ReducedHolders
Q4 20241,035,214$37.6M<0.1%+718,717+227.1%AddedHolders
Q3 2024316,497$12.4M<0.1%−76,475−19.5%ReducedHolders
Q2 2024392,972$19.7M<0.1%−42,215−9.7%ReducedHolders
Q1 2024435,187$19.6M<0.1%−151,952−25.9%ReducedHolders
Q4 2023587,139$20.6M<0.1%−1,154−0.2%ReducedHolders
Q3 2023588,293$16.8M<0.1%−19,988−3.3%ReducedHolders
Q2 2023608,281$23.2M<0.1%−18,476−2.9%ReducedHolders
Q1 2023626,757$20.1M<0.1%−280,748−30.9%ReducedHolders
Q4 2022907,505$30.6M<0.1%+81,324+9.8%AddedHolders
Q3 2022826,181$22.1M<0.1%−23,433−2.8%ReducedHolders
Q2 2022849,614$25.9M<0.1%+40,168+5.0%AddedHolders
Q1 2022809,446$33.7M<0.1%−2,741−0.3%ReducedHolders
Q4 2021812,187$46.6M0.1%−9,657−1.2%ReducedHolders
Q3 2021821,844$35.0M<0.1%−10,346−1.2%ReducedHolders
Q2 2021832,190$44.5M0.1%−7,774−0.9%ReducedHolders
Q1 2021839,964$48.4M0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.