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ACM Research
ACMR

300 hedge funds and large institutions have $1.74B invested in ACM Research in 2026 Q1 according to their latest regulatory filings, with 74 funds opening new positions, 81 increasing their positions, 105 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed

141% more call options, than puts

Call options by funds: $113M | Put options by funds: $47M

68% more first-time investments, than exits

New positions opened: 74 | Existing positions closed: 44

8% more funds holding

Funds holding: 277 → 300 (+23)

2% less capital invested

Capital invested by funds: $1.79B → $1.74B (-$41M)

2.41% less ownership

Funds ownership: 75.54% → 73.13% (-2.4%)

23% less repeat investments, than reductions

Existing positions increased: 81 | Existing positions reduced: 105

25% less funds holding in top 10

Funds holding in top 10: 8 → 6 (-2)

Holders
300
Holders Change
+23
Holders Change %
+8.3%
% of All Funds
3.69%
Holding in Top 10
6
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-25%
% of All Funds
0.07%
New
74
Increased
81
Reduced
105
Closed
44
Calls
$113M
Puts
$47M
Net Calls
+$66.4M
Net Calls Change
+$24.2M

Top Buyers

1
WCM Investment Management
WCM Investment Management
California
+$98.2M
2
VARA
Value Aligned Research Advisors
New Jersey
+$50.7M
3
PCP
Polunin Capital Partners
United Kingdom
+$40.5M
4
LP
Longaeva Partners
Illinois
+$37.6M
5
OCMH
Oxbow Capital Management (HK)
Hong Kong
+$31.7M

Top Sellers

1
LSV Asset Management
LSV Asset Management
Illinois
-$97.4M
2
TC
Triata Capital
Hong Kong
-$76.1M
3
SAM
Southeastern Asset Management
Tennessee
-$47.6M
4
Invesco
Invesco
Georgia
-$29.5M
5
BBCM
Broad Bay Capital Management
New York
-$25.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
Mitsubishi UFJ Trust & Banking
26
Mitsubishi UFJ Trust & Banking
Japan
$18.3M -$19.3M -363,368 -44%
UBS Group
27
UBS Group
Switzerland
$15.9M -$5.64M -106,206 -21%
Bank of America
28
Bank of America
North Carolina
$15.8M +$5.35M +100,700 +33%
PCM
29
Penn Capital Management
Pennsylvania
$15.7M -$2.02M -38,077 -9%
First Trust Advisors
30
First Trust Advisors
Illinois
$14.7M +$8.42M +158,664 +74%
RBI
31
Raiffeisen Bank International
Austria
$14.4M -$2.92M -55,000 -13%
VFT
32
Vanguard Fiduciary Trust
Pennsylvania
$13.4M +$18.1M +341,401 New
Principal Financial Group
33
Principal Financial Group
Iowa
$13.4M -$2.25M -42,405 -11%
CAM
34
Congress Asset Management
Massachusetts
$13.4M +$2.68M +50,414 +17%
AQR Capital Management
35
AQR Capital Management
Connecticut
$12.7M -$1.07M -20,191 -6%
Bank of New York Mellon
36
Bank of New York Mellon
New York
$12.4M -$548K -10,331 -3%
TI
37
Tidal Investments
Wisconsin
$12.3M +$7.05M +132,839 +73%
JP Morgan Chase
38
JP Morgan Chase
New York
$11.3M +$5.25M +98,881 +50%
OMC
39
Oasis Management Company
Cayman Islands
$10.6M +$1.92M +36,100 +15%
New York State Common Retirement Fund
40
New York State Common Retirement Fund
New York
$10.2M -$2.34M -44,107 -15%
Jacobs Levy Equity Management
41
Jacobs Levy Equity Management
New Jersey
$9.61M +$13M +244,252 New
KA
42
Kerrisdale Advisers
Florida
$8.8M -$2.11M -39,727 -15%
SCP
43
Steamboat Capital Partners
New York
$8.79M -$14.9M -280,770 -56%
T. Rowe Price Associates
44
T. Rowe Price Associates
Maryland
$8.54M +$9M +169,606 +358%
Ameriprise
45
Ameriprise
Minnesota
$8.35M -$5.36M -100,920 -32%
Wells Fargo
46
Wells Fargo
California
$8.03M +$6.4M +120,494 +144%
Citadel Advisors
47
Citadel Advisors
Florida
$8M +$3.2M +60,356 +42%
Public Sector Pension Investment Board (PSP Investments)
48
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$7.5M +$333K +6,281 +3%
SAM
49
Storebrand Asset Management
Norway
$7.08M +$9.56M +180,000 New
Russell Investments Group
50
Russell Investments Group
United Kingdom
$6.33M -$179K -3,375 -2%
1
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ACMR Hedge Fund Activity: Q1 2026 in Review

300 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in ACM Research (ACMR) for Q1 2026, worth a combined $1.74B — down 2.3% from $1.79B a quarter earlier.

Buyers outnumbered sellers: 74 funds opened new ACMR positions and 44 closed out — a net gain of 30 holders — while 81 added to existing stakes and 105 trimmed.

The largest buyer was WCM Investment Management, adding an estimated $98.2M. The largest seller was LSV Asset Management, cutting an estimated $97.4M.

  • 300 institutional investors held ACM Research (ACMR) as of Q1 2026, up from 277 in Q4 2025.
  • Funds reported $1.74B of ACM Research stock for Q1 2026, down 2.3% quarter-over-quarter.
  • 74 funds opened new ACM Research positions in Q1 2026 and 44 closed out, a net change of +30 holders.
  • The largest ACM Research buyer in Q1 2026 was WCM Investment Management, an estimated $98.2M added.
  • The largest ACM Research seller in Q1 2026 was LSV Asset Management, an estimated $97.4M sold.

Based on aggregated 13F filings for Q1 2026.