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Cornerstone Investment Partners’s ACM Research ACMR Stock Holding History

Cornerstone Investment Partners’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 		$1.78M Buy
14,049
+7,658
+120% +$541K 0.06% 36
2026
Q1 		$251K Buy
+6,391
New +$339K 0.01% 216
2025
Q4 		– Sell
-10,170
Closed -$398K – 220
2025
Q3 		$398K Sell
10,170
-756
-7% -$22.4K 0.02% 79
2025
Q2 		$283K Buy
10,926
+4
+0% +$90 0.01% 113
2025
Q1 		$255K Sell
10,922
-956
-8% -$21.8K 0.01% 104
2024
Q4 		$179K Sell
11,878
-23
-0.2% -$416 0.01% 226
2024
Q3 		$242K Buy
11,901
+398
+3% +$7.63K 0.01% 149
2024
Q2 		$265K Sell
11,503
-940
-8% -$23.8K 0.01% 128
2024
Q1 		$363K Sell
12,443
-154
-1% -$3.52K 0.02% 109
2023
Q4 		$246K Hold
12,597
– – 0.01% 145
2023
Q3 		$228K Sell
12,597
-909
-7% -$13.5K 0.01% 131
2023
Q2 		$177K Hold
13,506
– – 0.01% 173
2023
Q1 		$158K Buy
+13,506
New +$156K 0.01% 181

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

Cornerstone Investment Partners's ACMR Position: Q2 2026 in Review

Cornerstone Investment Partners increased its ACM Research (ACMR) stake by 120% in Q2 2026, buying an estimated $541K and bringing the position to 14,049 shares worth $1.78M. The position accounts for 0.06% of the portfolio, ranked #36.

Cornerstone Investment Partners first reported a position in ACMR in Q1 2023 and has held it in 13 quarters since. 376 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

  • Cornerstone Investment Partners held 14,049 shares of ACM Research worth $1.78M as of Q2 2026.
  • Cornerstone Investment Partners bought 7,658 ACM Research shares in Q2 2026, an estimated $541K.
  • ACM Research made up 0.06% of Cornerstone Investment Partners's portfolio in Q2 2026, its #36 holding.
  • Cornerstone Investment Partners first reported a position in ACM Research in Q1 2023 and has held it in 13 quarters since.
  • 376 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

Based on Cornerstone Investment Partners's 13F filing for Q2 2026, filed 7 Aug 2026.