Citadel Advisors
UCTT

Citadel Advisors’s Ultra Clean Holdings UCTT Stock Holding History

Citadel Advisors’s Portfolio UCTT Stock Details UCTT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.31M Sell
21,100
-13,700
-39% -$702K ﹤0.01% 7044
2025
Q4 		$881K Sell
34,800
-9,600
-22% -$255K ﹤0.01% 7675
2025
Q3 		$1.21M Sell
44,400
-12,700
-22% -$312K ﹤0.01% 7126
2025
Q2 		$1.29M Sell
57,100
-12,700
-18% -$261K ﹤0.01% 6554
2025
Q1 		$1.49M Buy
69,800
+43,600
+166% +$1.39M ﹤0.01% 6094
2024
Q4 		$942K Buy
26,200
+11,800
+82% +$436K ﹤0.01% 7143
2024
Q3 		$575K Buy
14,400
+7,600
+112% +$312K ﹤0.01% 7967
2024
Q2 		$333K Sell
6,800
-7,000
-51% -$314K ﹤0.01% 8924
2024
Q1 		$634K Buy
13,800
+10,200
+283% +$414K ﹤0.01% 7864
2023
Q4 		$123K Sell
3,600
-11,200
-76% -$311K ﹤0.01% 10674
2023
Q3 		$439K Buy
14,800
+1,300
+10% +$43.8K ﹤0.01% 8350
2023
Q2 		$519K Sell
13,500
-800
-6% -$25.7K ﹤0.01% 7853
2023
Q1 		$474K Sell
14,300
-21,100
-60% -$698K ﹤0.01% 8428
2022
Q4 		$1.17M Buy
35,400
+12,000
+51% +$383K ﹤0.01% 6505
2022
Q3 		$603K Sell
23,400
-16,900
-42% -$517K ﹤0.01% 8055
2022
Q2 		$1.2M Sell
40,300
-36,300
-47% -$1.18M ﹤0.01% 6605
2022
Q1 		$3.25M Sell
76,600
-1,200
-2% -$57.4K ﹤0.01% 5013
2021
Q4 		$4.46M Buy
77,800
+2,700
+4% +$140K ﹤0.01% 4524
2021
Q3 		$3.2M Buy
75,100
+54,400
+263% +$2.56M ﹤0.01% 5222
2021
Q2 		$1.11M Sell
20,700
-9,900
-32% -$530K ﹤0.01% 8092
2021
Q1 		$1.78M Sell
30,600
-1,100
-3% -$50.7K ﹤0.01% 6691
2020
Q4 		$987K Sell
31,700
-19,800
-38% -$553K ﹤0.01% 6819
2020
Q3 		$1.1M Buy
51,500
+26,200
+104% +$636K ﹤0.01% 5865
2020
Q2 		$573K Buy
25,300
+12,100
+92% +$230K ﹤0.01% 6832
2020
Q1 		$182K Sell
13,200
-6,000
-31% -$127K ﹤0.01% 8105
2019
Q4 		$451K Buy
19,200
+1,300
+7% +$26.3K ﹤0.01% 6974
2019
Q3 		$262K Buy
17,900
+5,800
+48% +$80.5K ﹤0.01% 7763
2019
Q2 		$168K Sell
12,100
-33,200
-73% -$423K ﹤0.01% 8301
2019
Q1 		$469K Buy
45,300
+4,100
+10% +$44K ﹤0.01% 6899
2018
Q4 		$349K Sell
41,200
-1,200
-3% -$11.7K ﹤0.01% 7007
2018
Q3 		$532K Sell
42,400
-31,900
-43% -$464K ﹤0.01% 6595
2018
Q2 		$1.23M Buy
74,300
+30,400
+69% +$533K ﹤0.01% 4857
2018
Q1 		$845K Sell
43,900
-31,400
-42% -$662K ﹤0.01% 5059
2017
Q4 		$1.74M Buy
75,300
+33,000
+78% +$846K ﹤0.01% 3825
2017
Q3 		$1.29M Buy
42,300
+17,700
+72% +$418K ﹤0.01% 3959
2017
Q2 		$461K Buy
+24,600
New +$495K ﹤0.01% 5237

Other funds holding UCTT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $9.73B AUM 55.65% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return

Citadel Advisors's UCTT Position: Q1 2026 in Review

Citadel Advisors increased its Ultra Clean Holdings (UCTT) stake by 345% in Q1 2026, buying an estimated $5.53M and bringing the position to 139,223 shares worth $8.66M. The position accounts for ﹤0.01% of the portfolio, ranked #3455.

Citadel Advisors first reported a position in UCTT in Q4 2013 and has held it in 43 quarters since. The position peaked at $9.62M in Q3 2021. 331 funds tracked by Wall St. Rank hold UCTT as of Q1 2026.

  • Citadel Advisors held 139,223 shares of Ultra Clean Holdings worth $8.66M as of Q1 2026.
  • Citadel Advisors bought 107,904 Ultra Clean Holdings shares in Q1 2026, an estimated $5.53M.
  • Ultra Clean Holdings made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #3455 holding.
  • Citadel Advisors first reported a position in Ultra Clean Holdings in Q4 2013 and has held it in 43 quarters since.
  • Citadel Advisors's Ultra Clean Holdings position peaked at $9.62M in Q3 2021.
  • 331 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.