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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
LFG
201
Larson Financial Group
Missouri
$242K +$313K +5,890 +2,319%
1WCM
202
12 West Capital Management
New York
$240K +$324K +6,100 New
MOACM
203
Mutual of America Capital Management
New York
$240K +$372 +7 +0.1%
FGC
204
First Growth Capital
Maryland
$226K +$15.1K +285 +5%
CG
205
Caprock Group
Idaho
$226K -$229K -4,308 -43%
Marshall Wace
206
Marshall Wace
United Kingdom
$225K +$304K +5,727 New
Nomura Holdings
207
Nomura Holdings
Japan
$217K -$225K -4,246 -43%
VCM
208
Violich Capital Management
California
$211K -$29.2K -550 -9%
NB
209
Nicolet Bankshares
Wisconsin
$207K +$280K +5,272 New
BTI
210
Blue Trust Inc
Georgia
$203K -$31K -584 -10%
OR
211
Olympiad Research
Connecticut
$202K +$273K +5,138 New
CIM
212
Contravisory Investment Management
Massachusetts
$201K – – –
Ensign Peak Advisors
213
Ensign Peak Advisors
Utah
$180K – – –
AIP
214
Ameritas Investment Partners
Nebraska
$166K – – –
Royal Bank of Canada
215
Royal Bank of Canada
Ontario, Canada
$162K +$45.1K +849 +26%
TRCT
216
Tower Research Capital (TRC)
New York
$147K +$43.9K +827 +29%
CIAM
217
Caitong International Asset Management
Hong Kong
$139K +$187K +3,527 New
PCM
218
Palouse Capital Management
Washington
$127K -$26.4K -497 -13%
EP
219
Essential Partners
California
$120K – – –
VEA
220
Virtus ETF Advisers
New York
$115K -$94.1K -1,772 -38%
RAM
221
Resona Asset Management
Japan
$106K -$6.37K -120 -4%
TC
222
Truvestments Capital
Florida
$91K – – –
HIIFS
223
Harel Insurance Investments & Financial Services
Israel
$80K +$108K +2,040 New
Nisa Investment Advisors
224
Nisa Investment Advisors
Missouri
$79.6K +$3.93K +74 +4%
SPIA
225
Steward Partners Investment Advisory
New York
$74.8K – – –
7 8
9
10 11

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.