Jian Wang is See remarks at ACM Research, Inc. (ACMR). They have made 1 open-market trade across 1 company since 2020, most recently 2025-09-18.
CIK 0001721620
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ACMR | 283,158 | $15.0M |
Shares reported on the most recent Form 4, priced at the 2025-09-19 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ACMR | SELL · 10b5-1 | 2025-09-18 | 2025-09-19 | $35.00 | $1.1M | +21.6% | +10.5% | +5.0% |
| ACMR | SELL · 10b5-1 | 2025-08-22 | 2025-08-26 | $31.00 | $1.9M | -7.6% | +30.0% | +9.7% |
| ACMR | SELL · 10b5-1 | 2024-06-10 | 2024-06-12 | $22.68 | $2.0M | -11.9% | -1.3% | -36.0% |
| ACMR | SELL · 10b5-1 | 2024-06-06 | 2024-06-07 | $22.50 | $1.3M | +4.6% | +7.0% | -24.9% |
| ACMR | SELL | 2020-12-30 | 2020-12-31 | $78.00 | $2.5M | +18.6% | +17.3% | -1.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.