Citigroup
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Citigroup’s ACM Research ACMR Stock Holding History

Citigroup’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
2026
Q1 		$19.1M Buy
+486,000
New +$25.8M 0.01% 1081

Other funds holding ACMR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $43.8B AUM 42.28% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $20.7B AUM 292.88% 1-Year Est. Return
PCP
Polunin Capital Partners London, United Kingdom $407M AUM 55.12% 1-Year Est. Return

Citigroup's ACMR Position: Q1 2026 in Review

Citigroup increased its ACM Research (ACMR) stake by 1,317% in Q1 2026, buying an estimated $30.6M and bringing the position to 619,892 shares worth $24.4M. The position accounts for 0.01% of the portfolio, ranked #964.

Citigroup first reported a position in ACMR in Q2 2018 and has held it in 30 quarters since. The position peaked at $33.9M in Q4 2023. 300 funds tracked by Wall St. Rank hold ACMR as of Q1 2026.

  • Citigroup held 619,892 shares of ACM Research worth $24.4M as of Q1 2026.
  • Citigroup bought 576,140 ACM Research shares in Q1 2026, an estimated $30.6M.
  • ACM Research made up 0.01% of Citigroup's portfolio in Q1 2026, its #964 holding.
  • Citigroup first reported a position in ACM Research in Q2 2018 and has held it in 30 quarters since.
  • Citigroup's ACM Research position peaked at $33.9M in Q4 2023.
  • 300 funds tracked by Wall St. Rank held ACM Research as of Q1 2026.

Based on Citigroup's 13F filing for Q1 2026, filed 11 May 2026.