RBF Capital’s ACM Research ACMR Stock Holding History

RBF Capital’s Portfolio ACMR Stock Details ACMR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-20,000	Closed	-$783K	–	556
2025 Q3	$783K	Hold	20,000	–	–	0.03%	344
2025 Q2	$518K	Hold	20,000	–	–	0.02%	419
2025 Q1	$467K	Buy	+20,000	New	+$457K	0.03%	397

Other funds holding ACMR

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Triata Capital Hong Kong $552M AUM 2.89% 1-Year Est. Return

SAM

Southeastern Asset Management Memphis, Tennessee $2.03B AUM 7.06% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

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

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

RBF Capital's ACMR Position: Q4 2025 in Review

RBF Capital sold out of ACM Research (ACMR) in Q4 2025, closing a stake of 20,000 shares — an estimated $783K sold.

RBF Capital first reported a position in ACMR in Q1 2025 and held it in 3 quarters. The position peaked at $783K in Q3 2025. 277 funds tracked by Wall St. Rank hold ACMR as of Q4 2025.

RBF Capital reported no remaining ACM Research position as of Q4 2025 after selling out during the quarter.
RBF Capital sold 20,000 ACM Research shares in Q4 2025, an estimated $783K.
RBF Capital first reported a position in ACM Research in Q1 2025 and held it in 3 quarters.
RBF Capital's ACM Research position peaked at $783K in Q3 2025.
277 funds tracked by Wall St. Rank held ACM Research as of Q4 2025.

Based on RBF Capital's 13F filing for Q4 2025, filed 17 Feb 2026.