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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
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 $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

Gilder Gagnon Howe & Co's ACMR Position: Q1 2026 in Review

Gilder Gagnon Howe & Co increased its ACM Research (ACMR) stake by 41% in Q1 2026, buying an estimated $1.11M and bringing the position to 71,245 shares worth $2.8M. The position accounts for 0.03% of the portfolio, ranked #180.

Gilder Gagnon Howe & Co first reported a position in ACMR in Q4 2017 and has held it in 11 quarters since. 300 funds tracked by Wall St. Rank hold ACMR as of Q1 2026.

  • Gilder Gagnon Howe & Co held 71,245 shares of ACM Research worth $2.8M as of Q1 2026.
  • Gilder Gagnon Howe & Co bought 20,877 ACM Research shares in Q1 2026, an estimated $1.11M.
  • ACM Research made up 0.03% of Gilder Gagnon Howe & Co's portfolio in Q1 2026, its #180 holding.
  • Gilder Gagnon Howe & Co first reported a position in ACM Research in Q4 2017 and has held it in 11 quarters since.
  • 300 funds tracked by Wall St. Rank held ACM Research as of Q1 2026.

Based on Gilder Gagnon Howe & Co's 13F filing for Q1 2026, filed 15 May 2026.