Ultra Clean Ownership | Who Owns Ultra Clean?


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Ultra Clean Ownership Summary


Ultra Clean is owned by 60.49% institutional investors, 2.40% insiders, and 37.11% retail investors. Blackrock is the largest institutional shareholder, holding 15.53% of UCTT shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.05% of its assets in Ultra Clean shares.

UCTT Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockUltra Clean60.49%2.40%37.11%
SectorTechnology Stocks 35.18%13.13%51.68%
IdeaSemiconductor Stocks List 60.61%7.19%32.20%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock6.93M15.53%$339.38M
Blackrock funding, inc. /de6.72M14.80%$170.20M
Vanguard group4.99M10.99%$126.42M
Shapiro capital management3.69M8.16%$100.55M
Frontier capital management3.03M6.71%$82.66M
Invesco2.08M4.61%$56.80M
State street1.76M3.90%$48.08M
Dimensional fund advisors lp1.52M3.36%$38.63M
Royce & associates lp1.10M2.42%$27.83M
Geode capital management1.09M2.40%$27.60M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Divisar capital management1.05M7.80%$28.68M
Shapiro capital management3.69M4.36%$100.55M
Goodman financial558.02K2.68%$14.13M
Frontier capital management3.03M0.74%$82.66M
Optimize financial57.36K0.73%$1.45M
Paradigm capital management inc/ny608.20K0.65%$15.41M
Oberweis asset management inc/613.30K0.64%$16.71M
Bridge city capital81.12K0.60%$2.05M
Teton advisors43.50K0.60%$981.79K
Grace & white inc /ny114.45K0.52%$2.90M

Top Buyers

HolderShares% AssetsChange
Driehaus capital management321.97K0.06%321.97K
Vanguard group4.99M0.00%293.05K
Frontier capital management3.03M0.74%279.11K
Liontrust investment partners llp349.46K0.18%256.46K
Morgan stanley894.42K0.00%212.36K

Top Sellers

HolderShares% AssetsChange
Swedbank ab---1.21M
Boston partners---1.02M
Vaughan nelson investment management---860.80K
Hood river capital management---458.53K
Shapiro capital management3.69M4.36%-454.85K

New Positions

HolderShares% AssetsChangeValue
Driehaus capital management321.97K0.06%321.97K$8.77M
Canada pension plan investment board107.30K0.00%107.30K$2.92M
Penn capital management company69.81K0.14%69.81K$1.77M
Healthcare of ontario pension plan trust fund60.00K0.00%60.00K$1.64M
Jump financial28.00K0.01%28.00K$763.00K

Sold Out

HolderChange
Tfc financial management-1.00
Claris advisors, llc / mo /-1.00
Sjs investment consulting-1.00
Tfo-tdc-1.00
Bay harbor wealth management-1.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2025161-34.82%27,463,818-34.78%600.70%68-42.86%60-24.05%
Sep 30, 20252365.36%41,432,8673.87%911.18%115-10.16%7827.87%
Jun 30, 2025229-0.43%42,054,7400.73%931.09%12912.17%65-15.58%
Mar 31, 2025228-3.80%41,734,4330.47%921.09%114-12.98%7713.24%
Dec 31, 2024179-28.69%29,808,118-26.21%660.82%99-33.11%49-22.22%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Small-Cap ETF2.75M6.05%-257.04K
Invesco Small Cap Value A2.02M4.44%-
Vanguard US Total Market Shares ETF1.38M3.05%1.16K
Vanguard Total Stock Mkt Idx Inv1.35M2.98%1.06K
Invesco Semiconductors ETF1.15M2.52%2.57K
Vanguard Information Technology ETF1.11M2.45%4.76K
iShares Russell 2000 ETF1.07M2.36%105.05K
Swedbank Robur Technology A845.07K1.88%-504.93K
Oberweis Micro-Cap613.30K1.35%-
Oberweis Micro-Cap Growth613.30K1.35%-

Recent Insider Transactions


DateNameRoleActivityValue
Dec 03, 2025IBNALE DAVID T-Sell$625.75K
Jun 06, 2025Cho Paul Yoonku General Counsel and SecretarySell$86.01K
Jun 04, 2025McKibben Jeffrey L. Chief Information OfficerSell$131.36K
May 06, 2025Palfrey Jamie J. SVP, Global Human ResourcesSell$182.37K
Mar 07, 2025Bentinck Bill President, Services BusinessBuy$75.51K

Insider Transactions Trends


DateBuySell
2025 Q4-1
2025 Q3--
2025 Q2-3
2025 Q15-
2024 Q451

UCTT Ownership FAQ


Who owns the most shares of Ultra Clean?

Ultra Clean’s largest shareholders are Blackrock (6.93M shares, 15.53%), Blackrock funding, inc. /de (6.72M shares, 14.80%), and Vanguard group (4.99M shares, 10.99%). Together, they hold 41.32% of Ultra Clean’s total shares outstanding.

Does Blackrock own Ultra Clean?

Yes, BlackRock owns 15.53% of Ultra Clean, totaling 6.93M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 339.38M$. In the last quarter, BlackRock decreased its holdings by -219K shares, a -3.06% change.

Who is Ultra Clean’s biggest shareholder by percentage of total assets invested?

Divisar capital management is Ultra Clean’s biggest shareholder by percentage of total assets invested, with 7.80% of its assets in 1.05M Ultra Clean shares, valued at 28.68M$.

Who is the top mutual fund holder of Ultra Clean shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of Ultra Clean shares, with 6.05% of its total shares outstanding invested in 2.75M Ultra Clean shares.

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