PCM
UCTT

Prelude Capital Management’s Ultra Clean Holdings UCTT Stock Holding History

Prelude Capital Management’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
Q2 		$602K Buy
+4,223
New +$372K 0.04% 453
2021
Q3 		– Sell
-7,237
Closed -$389K – 2032
2021
Q2 		$389K Buy
+7,237
New +$387K 0.01% 1076
2020
Q2 		– Sell
-1,488
Closed -$21K – 2267
2020
Q1 		$21K Sell
1,488
-2,959
-67% -$62.8K ﹤0.01% 982
2019
Q4 		$104K Buy
+4,447
New +$89.9K ﹤0.01% 1088
2018
Q2 		– Sell
-709
Closed -$14K – 1956
2018
Q1 		$14K Buy
+709
New +$15K ﹤0.01% 1305
2017
Q3 		– Sell
-4,445
Closed -$83K – 1908
2017
Q2 		$83K Buy
4,445
+1,023
+30% +$20.6K 0.01% 838
2017
Q1 		$58K Sell
3,422
-5,063
-60% -$67.2K 0.01% 930
2016
Q4 		$82K Sell
8,485
-1,437
-14% -$13.1K 0.01% 888
2016
Q3 		$74K Buy
9,922
+2,022
+26% +$13.3K 0.01% 917
2016
Q2 		$45K Buy
+7,900
New +$43.6K 0.01% 1053
2015
Q2 		– Sell
-7,200
Closed -$51K – 2050
2015
Q1 		$51K Buy
7,200
+2,800
+64% +$24.6K 0.01% 1277
2014
Q4 		$41K Sell
4,400
-900
-17% -$7.62K 0.01% 1347
2014
Q3 		$47K Sell
5,300
-9,100
-63% -$84.8K 0.01% 1414
2014
Q2 		$130K Buy
+14,400
New +$138K 0.02% 985
2014
Q1 		– Sell
-11,218
Closed -$113K – 2112
2013
Q4 		$113K Buy
+11,218
New +$101K 0.02% 822

Other funds holding UCTT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Prelude Capital Management's UCTT Position: Q2 2026 in Review

Prelude Capital Management opened a new position in Ultra Clean Holdings (UCTT) in Q2 2026: 4,223 shares worth $602K. The stake represents 0.04% of the portfolio and ranks #453 among its holdings. This is a return to the name: Prelude Capital Management previously reported a position in UCTT as recently as Q2 2021.

Prelude Capital Management first reported a position in UCTT in Q4 2013 and has held it in 15 quarters since. 438 funds tracked by Wall St. Rank hold UCTT as of Q2 2026.

  • Prelude Capital Management held 4,223 shares of Ultra Clean Holdings worth $602K as of Q2 2026.
  • Ultra Clean Holdings was a new Prelude Capital Management position in Q2 2026.
  • Ultra Clean Holdings made up 0.04% of Prelude Capital Management's portfolio in Q2 2026, its #453 holding.
  • Prelude Capital Management first reported a position in Ultra Clean Holdings in Q4 2013 and has held it in 15 quarters since.
  • 438 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q2 2026.

Based on Prelude Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.