ACM Research
ACMR
277 hedge funds and large institutions have $1.79B invested in ACM Research in 2025 Q4 according to their latest regulatory filings, with 69 funds opening new positions, 94 increasing their positions, 85 reducing their positions, and 44 closing their positions.
57% more first-time investments, than exits
New positions opened: 69 | Existing positions closed: 44
53% more call options, than puts
Call options by funds: $121M | Put options by funds: $79M
11% more repeat investments, than reductions
Existing positions increased: 94 | Existing positions reduced: 85
9% more capital invested
Capital invested by funds: $1.63B → $1.79B (+$151M)
7% more funds holding
Funds holding: 258 → 277 (+19)
4.95% more ownership
Funds ownership: 70.6% → 75.54% (+4.9%)
0% more funds holding in top 10
Funds holding in top 10: 8 → 8 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Invesco
Atlanta,
Georgia
|
+$40.8M |
| 2 |
Janus Henderson Group
London,
|
+$37.7M |
| 3 |
TCM
Tekne Capital Management
New York
|
+$26.6M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$20.7M |
| 5 |
Morgan Stanley
New York
|
+$19.2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
-$38.8M |
| 2 |
Mitsubishi UFJ Trust & Banking
Tokyo,
Japan
|
-$19.8M |
| 3 |
BBCM
Broad Bay Capital Management
New York
|
-$13.4M |
| 4 |
Goldman Sachs
New York
|
-$11.6M |
| 5 |
MAMHA
MY.Alpha Management HK Advisors
Hong Kong
|
-$9.49M |
ACMR Hedge Fund Activity: Q4 2025 in Review
277 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in ACM Research (ACMR) for Q4 2025, worth a combined $1.79B — up 9.2% from $1.63B a quarter earlier.
Buyers outnumbered sellers: 69 funds opened new ACMR positions and 44 closed out — a net gain of 25 holders — while 94 added to existing stakes and 85 trimmed.
The largest buyer was Invesco, adding an estimated $40.8M. The largest seller was Federated Hermes, cutting an estimated $38.8M.
- 277 institutional investors held ACM Research (ACMR) as of Q4 2025, up from 258 in Q3 2025.
- Funds reported $1.79B of ACM Research stock for Q4 2025, up 9.2% quarter-over-quarter.
- 69 funds opened new ACM Research positions in Q4 2025 and 44 closed out, a net change of +25 holders.
- The largest ACM Research buyer in Q4 2025 was Invesco, an estimated $40.8M added.
- The largest ACM Research seller in Q4 2025 was Federated Hermes, an estimated $38.8M sold.
Based on aggregated 13F filings for Q4 2025.