Tracy Liu 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 Tracy reports to the SEC
Open-market buys and sales
9 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 11, 2026 | ACMR | ↓ Sell | 60,000 | $47.51 | $2.9M | Direct | Mar 12, 2026 (1d) |
| Sep 17, 2025 | ACMR | ↓ Sell | 15,000 | $33.00 | $495K | Direct | Sep 19, 2025 (2d) |
| Jul 15, 2025 | ACMR | ↓ Sell | 15,000 | $30.00 | $450K | Direct | Jul 17, 2025 (2d) |
| Feb 28, 2024 | ACMR | ↓ Sell | 12,500 | $25.20 | $315K | Direct | Mar 1, 2024 (2d) |
| Dec 26, 2023 | ACMR | ↓ Sell | 10,000 | $20.00 | $200K | Direct | Dec 28, 2023 (2d) |
| Nov 20, 2023 | ACMR | ↓ Sell | 15,000 | $17.91 | $269K | Direct | Nov 22, 2023 (2d) |
| Feb 12, 2021 | ACMR | ↓ Sell | 2,000 | $120.00 | $240K | Direct | Feb 16, 2021 (4d) |
| Feb 10, 2021 | ACMR | ↓ Sell | 2,000 | $110.00 | $220K | Direct | Feb 11, 2021 (1d) |
| Jan 6, 2021 | ACMR | ↓ Sell | 2,000 | $100.00 | $200K | Direct | Jan 8, 2021 (2d) |
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 Tracy Liu's insider trades
Tracy Liu is an insider at ACM Research (ACMR). Since Jan 6, 2021, Tracy has reported no open-market purchases and 9 sales worth $5.2M on SEC Form 4. In the last 12 months: 1 sale ($2.9M).
Their filings also include option exercises (9 filings), grants and awards (8 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.