ACM Research, Inc.
ACMR · NASDAQ · Information Technology · Semiconductor Materials & Equipment
Semiconductor Materials & Equipment company based in Fremont, California.
Example public filing
Soros Fund Management opened a new position $3.82M
Soros Fund Management opened a new position in ACM Research, Inc., per its Q2 2026 13F.
- 30K
- Shares reported
- 0.06%
- Disclosed portfolio weight
- $3.82M
- Reported value
- Holdings as of
- Jun 30, 2026
- Filed
- Aug 14, 2026
Data as of Oct 11, 2026. A real record from the official source, chosen as the most recent insider trade or, failing that, the most recent filing of another kind; not a recommendation.
On file for ACMR, last 12 months
- 0
- Insider filings
- 0
- Congress trades
- 6
- Fund positions
- 0
- Federal contracts
Records OQRO holds, counted by their date; a 13F position is counted once per quarter it is reported.
Insider buying and selling since 2020
Insiders of ACM Research, Inc. reported 0 open-market purchases and 180 sales since 2020; no open-market purchase.
| Year | Bought | Sold |
|---|---|---|
| 2025 | — | 27×27 trades |
| 2024 | — | 50×50 trades |
| 2023 | — | 25×25 trades |
| 2022 | — | 19×19 trades |
| 2021 | — | 35×35 trades |
| 2020 | — | 24×24 trades |
Open-market purchases (code P) and sales (code S) on Forms 4 and 5. Up to Sep 2024 from the SEC's Insider Transactions Data Sets; since Oct 2024 from each filing as it is published. A trade filed twice (an amendment) counts once. The amounts, the people and every filing are in OQRO Pro.
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6 records for ACM Research, Inc. in the last 12 months, each linked to its filing. Full histories, the screener, alerts for the companies you follow and Ask OQRO.
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What this page holds
- Insider trades and planned sales
- Politician trades (House and Senate)
- Fund holdings from 13F filings
- Federal contracts, lobbying and short selling
- Full history and context, with a link to every filing
What OQRO is
OQRO reads the public record for US-listed companies — insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings, and federal contract awards — and puts each one in plain words next to the filing it came from. It describes what was disclosed. It does not give investment advice or tell you what to buy.
Want to see real filings before you pay? The home page shows live ones, free, with the link to each source document.
Questions about ACM Research, Inc. insider trading
Have ACM Research, Inc. insiders bought shares recently?
No open-market purchase by an insider of ACM Research, Inc. is on record in SEC filings since 2006.
How often do ACM Research, Inc. insiders buy and sell shares?
Since 2020, ACM Research, Inc. insiders reported 0 open-market purchases and 180 sales on Forms 4 and 5.
Do members of Congress trade ACMR?
No trade in ACM Research, Inc. (ACMR) was disclosed by a member of Congress in the last 12 months.
When does ACM Research, Inc. report its next results?
ACM Research, Inc.'s next results are expected on Oct 28, 2026. The date can move until the company confirms it. Insiders often trade in the weeks right after results.
Where does this data come from?
From official filings only: SEC Forms 4, 5 and 144 for insiders, House and Senate periodic transaction reports for Congress, SEC Form 13F for funds, Form 8-K for company events and USAspending for federal contracts. Every record on OQRO links to its source. It is public data, not investment advice.