Two Sigma Investments
UCTT

Two Sigma Investments’s Ultra Clean Holdings UCTT Stock Holding History

Two Sigma Investments’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 		$36.1M Buy
+581,131
New +$29.8M 0.03% 638
2025
Q1 		– Sell
-48,390
Closed -$1.74M – 3501
2024
Q4 		$1.74M Sell
48,390
-36,260
-43% -$1.34M ﹤0.01% 1810
2024
Q3 		$3.38M Buy
+84,650
New +$3.47M 0.01% 1313
2023
Q4 		– Sell
-80,143
Closed -$2.38M – 3399
2023
Q3 		$2.38M Buy
80,143
+73,143
+1,045% +$2.47M 0.01% 1276
2023
Q2 		$269K Sell
7,000
-6,400
-48% -$206K ﹤0.01% 2546
2023
Q1 		$444K Buy
+13,400
New +$443K ﹤0.01% 2254
2022
Q4 		– Sell
-8,900
Closed -$229K – 3096
2022
Q3 		$229K Buy
+8,900
New +$272K ﹤0.01% 2060
2021
Q4 		– Sell
-48,612
Closed -$2.53M – 4913
2021
Q3 		$2.07M Buy
48,612
+3,304
+7% +$156K ﹤0.01% 1962
2021
Q2 		$2.43M Buy
45,308
+34,108
+305% +$1.83M 0.01% 1711
2021
Q1 		$650K Sell
11,200
-65,188
-85% -$3M ﹤0.01% 2684
2020
Q4 		$2.38M Buy
+76,388
New +$2.13M 0.01% 1386
2020
Q3 		– Sell
-35,168
Closed -$796K – 3574
2020
Q2 		$796K Buy
35,168
+20,330
+137% +$386K ﹤0.01% 1683
2020
Q1 		$205K Sell
14,838
-129,936
-90% -$2.76M ﹤0.01% 2638
2019
Q4 		$3.4M Buy
144,774
+62,809
+77% +$1.27M 0.01% 1200
2019
Q3 		$1.2M Buy
81,965
+43,517
+113% +$604K ﹤0.01% 1826
2019
Q2 		$535K Sell
38,448
-23,109
-38% -$294K ﹤0.01% 2451
2019
Q1 		$637K Buy
61,557
+29,293
+91% +$314K ﹤0.01% 2116
2018
Q4 		$273K Sell
32,264
-16,078
-33% -$157K ﹤0.01% 2518
2018
Q3 		$607K Buy
+48,342
New +$703K ﹤0.01% 2316
2017
Q4 		– Sell
-226,519
Closed -$5.8M – 3463
2017
Q3 		$6.94M Sell
226,519
-300,343
-57% -$7.1M 0.02% 662
2017
Q2 		$9.88M Buy
526,862
+4,346
+0.8% +$87.5K 0.04% 530
2017
Q1 		$8.81M Buy
522,516
+183,041
+54% +$2.43M 0.03% 666
2016
Q4 		$3.29M Buy
339,475
+272,993
+411% +$2.48M 0.01% 1120
2016
Q3 		$493K Buy
66,482
+2,112
+3% +$13.9K ﹤0.01% 2445
2016
Q2 		$366K Buy
64,370
+3,383
+6% +$18.7K ﹤0.01% 2443
2016
Q1 		$327K Sell
60,987
-13,488
-18% -$68.4K ﹤0.01% 2336
2015
Q4 		$381K Sell
74,475
-12,906
-15% -$66.8K ﹤0.01% 2119
2015
Q3 		$502K Sell
87,381
-29,173
-25% -$193K ﹤0.01% 1540
2015
Q2 		$726K Buy
116,554
+88,629
+317% +$573K ﹤0.01% 1879
2015
Q1 		$200K Sell
27,925
-28,081
-50% -$247K ﹤0.01% 2495
2014
Q4 		$520K Buy
+56,006
New +$474K ﹤0.01% 1705
2014
Q2 		– Sell
-107,723
Closed -$1.42M – 2363
2014
Q1 		$1.42M Sell
107,723
-24,453
-19% -$305K 0.01% 1066
2013
Q4 		$1.33M Buy
132,176
+86,398
+189% +$778K 0.01% 1195
2013
Q3 		$316K Sell
45,778
-40,098
-47% -$267K ﹤0.01% 1479
2013
Q2 		$520K Buy
+85,876
New +$516K ﹤0.01% 1388

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

Two Sigma Investments's UCTT Position: Q1 2026 in Review

Two Sigma Investments opened a new position in Ultra Clean Holdings (UCTT) in Q1 2026: 581,131 shares worth $36.1M. The stake represents 0.03% of the portfolio and ranks #638 among its holdings. This is a return to the name: Two Sigma Investments previously reported a position in UCTT as recently as Q4 2024.

Two Sigma Investments first reported a position in UCTT in Q2 2013 and has held it in 35 quarters since. 331 funds tracked by Wall St. Rank hold UCTT as of Q1 2026.

  • Two Sigma Investments held 581,131 shares of Ultra Clean Holdings worth $36.1M as of Q1 2026.
  • Ultra Clean Holdings was a new Two Sigma Investments position in Q1 2026.
  • Ultra Clean Holdings made up 0.03% of Two Sigma Investments's portfolio in Q1 2026, its #638 holding.
  • Two Sigma Investments first reported a position in Ultra Clean Holdings in Q2 2013 and has held it in 35 quarters since.
  • 331 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.