Jim Simons’s Ultra Clean Holdings UCTT Stock Holding History

Jim Simons’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	–	Sell	-106,400	Closed	-$2.7M	–	3702
2025 Q4	$2.7M	Buy	106,400 +16,900	+19%	+$450K	﹤0.01%	1684
2025 Q3	$2.44M	Sell	89,500 -167,700	-65%	-$4.12M	﹤0.01%	1938
2025 Q2	$5.81M	Buy	257,200 +197,400	+330%	+$4.05M	0.01%	1430
2025 Q1	$1.28M	Sell	59,800 -102,689	-63%	-$3.28M	﹤0.01%	2252
2024 Q4	$5.84M	Sell	162,489 -35,400	-18%	-$1.31M	0.01%	1344
2024 Q3	$7.9M	Buy	197,889 +78,789	+66%	+$3.23M	0.01%	1165
2024 Q2	$5.84M	Buy	119,100 +20,700	+21%	+$929K	0.01%	1206
2024 Q1	$4.52M	Buy	98,400 +28,500	+41%	+$1.16M	0.01%	1483
2023 Q4	$2.39M	Sell	69,900 -48,400	-41%	-$1.35M	﹤0.01%	1844
2023 Q3	$3.51M	Sell	118,300 -40,900	-26%	-$1.38M	0.01%	1500
2023 Q2	$6.12M	Sell	159,200 -108,300	-40%	-$3.49M	0.01%	1308
2023 Q1	$8.87M	Buy	267,500 +95,800	+56%	+$3.17M	0.01%	1147
2022 Q4	$5.69M	Sell	171,700 -40,200	-19%	-$1.28M	0.01%	1436
2022 Q3	$5.46M	Buy	211,900 +151,100	+249%	+$4.62M	0.01%	1379
2022 Q2	$1.81M	Sell	60,800 -56,100	-48%	-$1.82M	﹤0.01%	2264
2022 Q1	$4.96M	Buy	116,900 +19,000	+19%	+$909K	0.01%	1602
2021 Q4	$5.62M	Sell	97,900 -74,700	-43%	-$3.89M	0.01%	1457
2021 Q3	$7.35M	Buy	172,600 +125,400	+266%	+$5.91M	0.01%	1221
2021 Q2	$2.54M	Buy	+47,200	New	+$2.53M	﹤0.01%	2088
2021 Q1	–	Sell	-61,900	Closed	-$1.93M	–	3721
2020 Q4	$1.93M	Buy	+61,900	New	+$1.73M	﹤0.01%	2136
2020 Q3	–	Sell	-46,200	Closed	-$1.05M	–	3698
2020 Q2	$1.05M	Sell	46,200 -9,200	-17%	-$175K	﹤0.01%	2517
2020 Q1	$765K	Buy	+55,400	New	+$1.18M	﹤0.01%	2556
2019 Q4	–	Sell	-24,300	Closed	-$356K	–	3754
2019 Q3	$356K	Sell	24,300 -185,200	-88%	-$2.57M	﹤0.01%	2983
2019 Q2	$2.92M	Sell	209,500 -116,237	-36%	-$1.48M	﹤0.01%	2132
2019 Q1	$3.37M	Sell	325,737 -210,518	-39%	-$2.26M	﹤0.01%	2048
2018 Q4	$4.54M	Buy	536,255 +320,755	+149%	+$3.14M	0.01%	1789
2018 Q3	$2.71M	Buy	+215,500	New	+$3.13M	﹤0.01%	2131
2017 Q4	–	Sell	-215,900	Closed	-$6.61M	–	3506
2017 Q3	$6.61M	Sell	215,900 -364,700	-63%	-$8.62M	0.01%	1577
2017 Q2	$10.9M	Sell	580,600 -136,100	-19%	-$2.74M	0.01%	1233
2017 Q1	$12.1M	Sell	716,700 -46,800	-6%	-$621K	0.02%	1117
2016 Q4	$7.41M	Buy	763,500 +497,100	+187%	+$4.52M	0.01%	1423
2016 Q3	$1.97M	Buy	266,400 +66,134	+33%	+$434K	﹤0.01%	2199
2016 Q2	$1.14M	Sell	200,266 -90,134	-31%	-$497K	﹤0.01%	2482
2016 Q1	$1.56M	Sell	290,400 -10,500	-3%	-$53.2K	﹤0.01%	2367
2015 Q4	$1.54M	Buy	300,900 +130,200	+76%	+$674K	﹤0.01%	2266
2015 Q3	$980K	Buy	170,700 +41,300	+32%	+$273K	﹤0.01%	2396
2015 Q2	$806K	Buy	129,400 +82,800	+178%	+$535K	﹤0.01%	2553
2015 Q1	$333K	Buy	+46,600	New	+$410K	﹤0.01%	2728
2014 Q2	–	Sell	-449,082	Closed	-$5.91M	–	2977
2014 Q1	$5.91M	Buy	449,082 +274,882	+158%	+$3.43M	0.01%	1166
2013 Q4	$1.75M	Buy	174,200 +83,790	+93%	+$754K	﹤0.01%	1821
2013 Q3	$625K	Buy	90,410 +16,706	+23%	+$111K	﹤0.01%	2219
2013 Q2	$446K	Buy	+73,704	New	+$442K	﹤0.01%	2275

Other funds holding UCTT

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 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 Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

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

Jim Simons's UCTT Position: Q1 2026 in Review

Jim Simons sold out of Ultra Clean Holdings (UCTT) in Q1 2026, closing a stake of 106,400 shares — an estimated $2.7M sold.

Jim Simons first reported a position in UCTT in Q2 2013 and held it in 42 quarters. The position peaked at $12.1M in Q1 2017. 331 funds tracked by Wall St. Rank hold UCTT as of Q1 2026.

Jim Simons reported no remaining Ultra Clean Holdings position as of Q1 2026 after selling out during the quarter.
Jim Simons sold 106,400 Ultra Clean Holdings shares in Q1 2026, an estimated $2.7M.
Jim Simons first reported a position in Ultra Clean Holdings in Q2 2013 and held it in 42 quarters.
Jim Simons's Ultra Clean Holdings position peaked at $12.1M in Q1 2017.
331 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.