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Congress Asset Management’s ACM Research ACMR Stock Holding History

Congress Asset Management’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 		$28.4M Sell
223,855
-116,008
-34% -$8.2M 0.17% 133
2026
Q1 		$13.4M Buy
339,863
+50,414
+17% +$2.68M 0.1% 184
2025
Q4 		$11.4M Buy
289,449
+7,526
+3% +$280K 0.08% 187
2025
Q3 		$11M Buy
281,923
+84,747
+43% +$2.52M 0.07% 190
2025
Q2 		$5.11M Buy
+197,176
New +$4.43M 0.04% 230

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

Congress Asset Management's ACMR Position: Q2 2026 in Review

Congress Asset Management reduced its ACM Research (ACMR) stake by 34% in Q2 2026, selling an estimated $8.2M and leaving 223,855 shares worth $28.4M. The position accounts for 0.17% of the portfolio, ranked #133.

Congress Asset Management first reported a position in ACMR in Q2 2025 and has held it in 5 quarters since. 373 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

  • Congress Asset Management held 223,855 shares of ACM Research worth $28.4M as of Q2 2026.
  • Congress Asset Management sold 116,008 ACM Research shares in Q2 2026, an estimated $8.2M.
  • ACM Research made up 0.17% of Congress Asset Management's portfolio in Q2 2026, its #133 holding.
  • Congress Asset Management first reported a position in ACM Research in Q2 2025 and has held it in 5 quarters since.
  • 373 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

Based on Congress Asset Management's 13F filing for Q2 2026, filed 7 Jul 2026.