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Gilder Gagnon Howe & Co’s ACM Research ACMR Stock Holding History

Gilder Gagnon Howe & Co’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 		$80.8M Buy
637,058
+565,813
+794% +$40M 0.83% 35
2026
Q1 		$2.8M Buy
71,245
+20,877
+41% +$1.11M 0.03% 180
2025
Q4 		$1.99M Buy
50,368
+1
+0% +$37 0.02% 195
2025
Q3 		$1.97M Buy
50,367
+729
+1% +$21.6K 0.02% 192
2025
Q2 		$1.29M Sell
49,638
-115
-0.2% -$2.59K 0.01% 194
2025
Q1 		$1.16M Buy
49,753
+23,493
+89% +$537K 0.02% 185
2024
Q4 		$397K Sell
26,260
-15
-0.1% -$271 ﹤0.01% 235
2024
Q3 		$533K Sell
26,275
-255
-1% -$4.89K 0.01% 229
2024
Q2 		$612K Sell
26,530
-191
-0.7% -$4.83K 0.01% 222
2024
Q1 		$779K Buy
+26,721
New +$612K 0.01% 222
2018
Q2 		– Sell
-169,050
Closed -$693K – 279
2018
Q1 		$693K Sell
169,050
-125,049
-43% -$335K 0.01% 232
2017
Q4 		$515K Buy
+294,099
New +$583K 0.01% 237

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

Gilder Gagnon Howe & Co's ACMR Position: Q2 2026 in Review

Gilder Gagnon Howe & Co increased its ACM Research (ACMR) stake by 794% in Q2 2026, buying an estimated $40M and bringing the position to 637,058 shares worth $80.8M. The position accounts for 0.83% of the portfolio, ranked #35.

Gilder Gagnon Howe & Co first reported a position in ACMR in Q4 2017 and has held it in 12 quarters since. 376 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

  • Gilder Gagnon Howe & Co held 637,058 shares of ACM Research worth $80.8M as of Q2 2026.
  • Gilder Gagnon Howe & Co bought 565,813 ACM Research shares in Q2 2026, an estimated $40M.
  • ACM Research made up 0.83% of Gilder Gagnon Howe & Co's portfolio in Q2 2026, its #35 holding.
  • Gilder Gagnon Howe & Co first reported a position in ACM Research in Q4 2017 and has held it in 12 quarters since.
  • 376 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

Based on Gilder Gagnon Howe & Co's 13F filing for Q2 2026, filed 14 Aug 2026.