State of Wisconsin Investment Board
UCTT

State of Wisconsin Investment Board’s Ultra Clean Holdings UCTT Stock Holding History

State of Wisconsin Investment Board’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 		$605K Sell
9,723
-55,696
-85% -$2.85M ﹤0.01% 1899
2025
Q4 		$1.66M Sell
65,419
-4,086
-6% -$109K ﹤0.01% 1487
2025
Q3 		$1.89M Sell
69,505
-33,050
-32% -$813K ﹤0.01% 1386
2025
Q2 		$2.31M Buy
102,555
+30,508
+42% +$626K 0.01% 1231
2025
Q1 		$1.54M Buy
72,047
+17,300
+32% +$552K ﹤0.01% 1342
2024
Q4 		$1.97M Buy
54,747
+1,887
+4% +$69.8K 0.01% 1290
2024
Q3 		$2.11M Buy
52,860
+10,800
+26% +$443K 0.01% 1288
2024
Q2 		$2.06M Sell
42,060
-2,635
-6% -$118K 0.01% 1277
2024
Q1 		$2.05M Buy
44,695
+12,346
+38% +$502K 0.01% 1243
2023
Q4 		$1.1M Sell
32,349
-7,019
-18% -$195K ﹤0.01% 1362
2023
Q3 		$1.17M Buy
39,368
+9,308
+31% +$314K ﹤0.01% 1357
2023
Q2 		$1.16M Sell
30,060
-10,890
-27% -$350K ﹤0.01% 1421
2023
Q1 		$1.36M Sell
40,950
-4,613
-10% -$153K ﹤0.01% 1400
2022
Q4 		$1.51M Sell
45,563
-19,843
-30% -$633K ﹤0.01% 1386
2022
Q3 		$1.68M Sell
65,406
-2,967
-4% -$90.8K 0.01% 1383
2022
Q2 		$2.04M Sell
68,373
-2,606
-4% -$84.6K 0.01% 1357
2022
Q1 		$3.01M Buy
70,979
+1,000
+1% +$47.9K 0.01% 1359
2021
Q4 		$4.01M Buy
69,979
+9,200
+15% +$479K 0.01% 1107
2021
Q3 		$2.59M Sell
60,779
-5,800
-9% -$273K 0.01% 1226
2021
Q2 		$3.58M Hold
66,579
– – 0.01% 1149
2021
Q1 		$3.86M Buy
66,579
+19,176
+40% +$883K 0.01% 1101
2020
Q4 		$1.48M Buy
47,403
+32,303
+214% +$901K ﹤0.01% 1250
2020
Q3 		$324K Buy
+15,100
New +$367K ﹤0.01% 1761

Other funds holding UCTT

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 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 $113B AUM 38.87% 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

State of Wisconsin Investment Board's UCTT Position: Q1 2026 in Review

State of Wisconsin Investment Board reduced its Ultra Clean Holdings (UCTT) stake by 85% in Q1 2026, selling an estimated $2.85M and leaving 9,723 shares worth $605K. The position accounts for ﹤0.01% of the portfolio, ranked #1899.

State of Wisconsin Investment Board first reported a position in UCTT in Q3 2020 and has held it in 23 quarters since. The position peaked at $4.01M in Q4 2021. 331 funds tracked by Wall St. Rank hold UCTT as of Q1 2026.

  • State of Wisconsin Investment Board held 9,723 shares of Ultra Clean Holdings worth $605K as of Q1 2026.
  • State of Wisconsin Investment Board sold 55,696 Ultra Clean Holdings shares in Q1 2026, an estimated $2.85M.
  • Ultra Clean Holdings made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #1899 holding.
  • State of Wisconsin Investment Board first reported a position in Ultra Clean Holdings in Q3 2020 and has held it in 23 quarters since.
  • State of Wisconsin Investment Board's Ultra Clean Holdings position peaked at $4.01M in Q4 2021.
  • 331 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.