Fuping Chen insider trades: ACM Research (ACMR) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Fuping reports to the SEC
Open-market buys and sales
3 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Dec 3, 2025 | ACMR | ↓ Sell | 120,000 | $33.18 | $4.0M | Direct | Dec 4, 2025 (1d) |
| Aug 23, 2023 | ACMR | ↓ Sell | 105,000 | $15.00 | $1.6M | Direct | Aug 25, 2023 (2d) |
| Feb 12, 2021 | ACMR | ↓ Sell | 30,000 | $120.00 | $3.6M | Direct | Feb 16, 2021 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ACMR insiders
Open-market trades in the last 12 months
About Fuping Chen's insider trades
Fuping Chen is See remarks at ACM Research (ACMR). Since Feb 12, 2021, Fuping has reported no open-market purchases and 3 sales worth $9.2M on SEC Form 4. In the last 12 months: 1 sale ($4.0M).
Their filings also include grants and awards (4 filings), option exercises (3 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ACMR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.