Mariner’s Ultra Clean Holdings UCTT Stock Holding History

Mariner’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	–	Sell	-6,312	Closed	-$392K	–	3905
2026 Q1	$392K	Buy	+6,312	New	+$324K	﹤0.01%	2667
2025 Q4	–	Sell	-10,959	Closed	-$299K	–	3815
2025 Q3	$299K	Sell	10,959 -362	-3%	-$8.9K	﹤0.01%	2810
2025 Q2	$256K	Buy	+11,321	New	+$232K	﹤0.01%	2854
2025 Q1	–	Sell	-5,848	Closed	-$210K	–	3592
2024 Q4	$210K	Buy	+5,848	New	+$216K	﹤0.01%	2964

Other funds holding UCTT

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

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

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 Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Mariner's UCTT Position: Q2 2026 in Review

Mariner sold out of Ultra Clean Holdings (UCTT) in Q2 2026, closing a stake of 6,312 shares — an estimated $392K sold.

Mariner first reported a position in UCTT in Q4 2024 and held it in 4 quarters. The position peaked at $392K in Q1 2026. 439 funds tracked by Wall St. Rank hold UCTT as of Q2 2026.

Mariner reported no remaining Ultra Clean Holdings position as of Q2 2026 after selling out during the quarter.
Mariner sold 6,312 Ultra Clean Holdings shares in Q2 2026, an estimated $392K.
Mariner first reported a position in Ultra Clean Holdings in Q4 2024 and held it in 4 quarters.
Mariner's Ultra Clean Holdings position peaked at $392K in Q1 2026.
439 funds tracked by Wall St. Rank held Ultra Clean Holdings as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.