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
Q2 		– Sell
-486,000
Closed -$19.1M – 5678
2026
Q1 		$19.1M Buy
+486,000
New +$25.8M 0.01% 1082

Other funds holding ACMR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $40.1B AUM 376.19% 1-Year Est. Return
WA
WFM Asia Road Town, Tortola, British Virgin Islands $663M AUM 15.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Citigroup's ACMR Position: Q2 2026 in Review

Citigroup reduced its ACM Research (ACMR) stake by 66% in Q2 2026, selling an estimated $29M and leaving 209,845 shares worth $26.6M. The position accounts for 0.01% of the portfolio, ranked #1014.

Citigroup first reported a position in ACMR in Q2 2018 and has held it in 31 quarters since. The position peaked at $33.9M in Q4 2023. 376 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

  • Citigroup held 209,845 shares of ACM Research worth $26.6M as of Q2 2026.
  • Citigroup sold 410,047 ACM Research shares in Q2 2026, an estimated $29M.
  • ACM Research made up 0.01% of Citigroup's portfolio in Q2 2026, its #1014 holding.
  • Citigroup first reported a position in ACM Research in Q2 2018 and has held it in 31 quarters since.
  • Citigroup's ACM Research position peaked at $33.9M in Q4 2023.
  • 376 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

Based on Citigroup's 13F filing for Q2 2026, filed 3 Aug 2026.