Form 4 filings across 1 company. Net figures count open-market buys and sales only. EDGAR profile ↗
Lifetime net: -$35.5M
Reported holding is the most recent post-transaction share count on a Table I row.
How quickly this filer reports. Section 16 allows two business days from the transaction.
2 of 10 filings we hold were filed after the two-business-day deadline. The furthest past the deadline was 32 business days late.
The 64 most recent Form 4 transactions.
Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings
| -0.1% |
| Open the original filing on SEC.gov |
| Sep 9 | ACMR | ACM Research, Inc. | SSELL◷ | 4,807 | $76.73 | $368.8K | -0.6% | Open the original filing on SEC.gov |
| Sep 9 | ACMR | ACM Research, Inc. | SSELL◷ | 11,666 | $75.58 | $881.7K | -1.4% | Open the original filing on SEC.gov |
| Sep 9 | ACMR | ACM Research, Inc. | SSELL◷ | 18,934 | $74.67 | $1.4M | -2.3% | Open the original filing on SEC.gov |
| Sep 9 | ACMR | ACM Research, Inc. | SSELL◷ | 33,493 | $73.80 | $2.5M | -3.8% | Open the original filing on SEC.gov |
| Sep 9 | ACMR | ACM Research, Inc. | MEXER◷ | 70,000 | $1.00 | $70K | +8.7% | Open the original filing on SEC.gov |
| Sep 8 | ACMR | ACM Research, Inc. | MEXER◷◆ | 70,000 | — | — | — | Open the original filing on SEC.gov |
| Sep 8 | ACMR | ACM Research, Inc. | SSELL◷ | 1,500 | $78.57 | $117.9K | -0.2% | Open the original filing on SEC.gov |
| Sep 8 | ACMR | ACM Research, Inc. | SSELL◷ | 12,323 | $78.08 | $962.2K | -1.5% | Open the original filing on SEC.gov |
| Sep 8 | ACMR | ACM Research, Inc. | SSELL◷ | 51,374 | $77.15 | $4M | -5.9% | Open the original filing on SEC.gov |
| Sep 8 | ACMR | ACM Research, Inc. | SSELL◷ | 4,803 | $75.99 | $365K | -0.5% | Open the original filing on SEC.gov |
| Sep 8 | ACMR | ACM Research, Inc. | MEXER◷ | 70,000 | $1.00 | $70K | +8.7% | Open the original filing on SEC.gov |
| Jun 4 | ACMR | ACM Research, Inc. | MEXER◷◆ | 40,002 | — | — | — | Open the original filing on SEC.gov |
| Jun 4 | ACMR | ACM Research, Inc. | SSELL◷ | 826 | $87.91 | $72.6K | -0.1% | Open the original filing on SEC.gov |
| Jun 4 | ACMR | ACM Research, Inc. | SSELL◷ | 8,581 | $87.13 | $747.7K | -1.1% | Open the original filing on SEC.gov |
| Jun 4 | ACMR | ACM Research, Inc. | SSELL◷ | 10,992 | $86.07 | $946.1K | -1.3% | Open the original filing on SEC.gov |
| Jun 4 | ACMR | ACM Research, Inc. | SSELL◷ | 17,543 | $85.11 | $1.5M | -2.1% | Open the original filing on SEC.gov |
| Jun 4 | ACMR | ACM Research, Inc. | SSELL◷ | 2,060 | $83.86 | $172.8K | -0.2% | Open the original filing on SEC.gov |
| Jun 4 | ACMR | ACM Research, Inc. | MEXER◷ | 40,002 | $1.00 | $40K | +5.0% | Open the original filing on SEC.gov |
| Jun 3 | ACMR | ACM Research, Inc. | MEXER◷◆ | 60,000 | — | — | — | Open the original filing on SEC.gov |
| Jun 3 | ACMR | ACM Research, Inc. | SSELL◷ | 1,187 | $93.04 | $110.4K | -0.1% | Open the original filing on SEC.gov |
| Jun 3 | ACMR | ACM Research, Inc. | SSELL◷ | 5,843 | $92.38 | $539.8K | -0.7% | Open the original filing on SEC.gov |
| Jun 3 | ACMR | ACM Research, Inc. | SSELL◷ | 9,925 | $90.78 | $901K | -1.2% | Open the original filing on SEC.gov |
| Jun 3 | ACMR | ACM Research, Inc. | SSELL◷ | 32,450 | $89.84 | $2.9M | -3.8% | Open the original filing on SEC.gov |
| Jun 3 | ACMR | ACM Research, Inc. | SSELL◷ | 6,295 | $88.98 | $560.1K | -0.7% | Open the original filing on SEC.gov |
| Jun 3 | ACMR | ACM Research, Inc. | SSELL◷ | 4,300 | $87.57 | $376.6K | -0.5% | Open the original filing on SEC.gov |
| Jun 3 | ACMR | ACM Research, Inc. | MEXER◷ | 60,000 | $1.00 | $60K | +7.5% | Open the original filing on SEC.gov |
| May 13 | ACMR | ACM Research, Inc. | AGRANT◆ | 6,208 | — | — | — | Open the original filing on SEC.gov |
| Mar 12 | ACMR | ACM Research, Inc. | MEXER◷◆ | 50,000 | — | — | — | Open the original filing on SEC.gov |
| Mar 12 | ACMR | ACM Research, Inc. | SSELL◷ | 702 | $46.57 | $32.7K | <0.1% | Open the original filing on SEC.gov |
| Mar 12 | ACMR | ACM Research, Inc. | SSELL◷ | 38,737 | $45.74 | $1.8M | -4.6% | Open the original filing on SEC.gov |
| Mar 12 | ACMR | ACM Research, Inc. | SSELL◷ | 10,561 | $44.92 | $474.4K | -1.2% | Open the original filing on SEC.gov |
| Mar 12 | ACMR | ACM Research, Inc. | MEXER◷ | 50,000 | $1.00 | $50K | +6.2% | Open the original filing on SEC.gov |
| Mar 11 | ACMR | ACM Research, Inc. | MEXER◷◆ | 60,000 | — | — | — | Open the original filing on SEC.gov |
| Mar 11 | ACMR | ACM Research, Inc. | SSELL◷ | 4,627 | $48.34 | $223.7K | -0.6% | Open the original filing on SEC.gov |
| Mar 11 | ACMR | ACM Research, Inc. | SSELL◷ | 55,373 | $47.89 | $2.7M | -6.4% | Open the original filing on SEC.gov |
| Mar 11 | ACMR | ACM Research, Inc. | MEXER◷ | 60,000 | $1.00 | $60K | +7.5% | Open the original filing on SEC.gov |
| Feb 4 | ACMR | ACM Research, Inc. | AGRANT◆ | 545,400 | — | — | — | Open the original filing on SEC.gov |
| Dec 4, 2025 | ACMR | ACM Research, Inc. | MEXER◷◆ | 60,000 | — | — | — | Open the original filing on SEC.gov |
| Dec 4, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 40,183 | $34.42 | $1.4M | -4.8% | Open the original filing on SEC.gov |
| Dec 4, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 19,817 | $33.52 | $664.3K | -2.3% | Open the original filing on SEC.gov |
| Dec 4, 2025 | ACMR | ACM Research, Inc. | MEXER◷ | 60,000 | $1.00 | $60K | +7.5% | Open the original filing on SEC.gov |
| Dec 3, 2025 | ACMR | ACM Research, Inc. | MEXER◷◆ | 70,000 | — | — | — | Open the original filing on SEC.gov |
| Dec 3, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 1,200 | $33.56 | $40.3K | -0.1% | Open the original filing on SEC.gov |
| Dec 3, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 68,800 | $33.05 | $2.3M | -7.9% | Open the original filing on SEC.gov |
| Dec 3, 2025 | ACMR | ACM Research, Inc. | MEXER◷ | 70,000 | $1.00 | $70K | +8.7% | Open the original filing on SEC.gov |
| Oct 27, 2025 | ACMR | ACM Research, Inc. | AGRANT◆ | 545,400 | — | — | — | Open the original filing on SEC.gov |
| Sep 8, 2025 | ACMR | ACM Research, Inc. | MEXER◆ | 130,000 | — | — | — | Open the original filing on SEC.gov |
| Sep 8, 2025 | ACMR | ACM Research, Inc. | MEXER | 130,000 | $1.00 | $130K | +19.3% | Open the original filing on SEC.gov |
| Sep 4, 2025 | ACMR | ACM Research, Inc. | MEXER◷◆ | 60,000 | — | — | — | Open the original filing on SEC.gov |
| Sep 4, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 60,000 | $26.44 | $1.6M | -8.2% | Open the original filing on SEC.gov |
| Sep 4, 2025 | ACMR | ACM Research, Inc. | MEXER◷ | 60,000 | $1.00 | $60K | +8.9% | Open the original filing on SEC.gov |
| Sep 3, 2025 | ACMR | ACM Research, Inc. | MEXER◷◆ | 70,000 | — | — | — | Open the original filing on SEC.gov |
| Sep 3, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 3,943 | $27.31 | $107.7K | -0.6% | Open the original filing on SEC.gov |
| Sep 3, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 66,057 | $26.73 | $1.8M | -8.9% | Open the original filing on SEC.gov |
| Sep 3, 2025 | ACMR | ACM Research, Inc. | MEXER◷ | 70,000 | $1.00 | $70K | +10.4% | Open the original filing on SEC.gov |
| May 22, 2025 | ACMR | ACM Research, Inc. | MEXER◷◆ | 60,000 | — | — | — | Open the original filing on SEC.gov |
| May 22, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 60,000 | $22.63 | $1.4M | -8.2% | Open the original filing on SEC.gov |
| May 22, 2025 | ACMR | ACM Research, Inc. | MEXER◷ | 60,000 | $1.00 | $60K | +8.9% | Open the original filing on SEC.gov |
| May 21, 2025 | ACMR | ACM Research, Inc. | MEXER◷◆ | 70,000 | — | — | — | Open the original filing on SEC.gov |
| May 21, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 8 | $24.04 | $192 | 0.0% | Open the original filing on SEC.gov |
| May 21, 2025 | ACMR | ACM Research, Inc. | SSELL◷ | 69,992 | $23.60 | $1.7M | -9.4% | Open the original filing on SEC.gov |
| May 21, 2025 | ACMR | ACM Research, Inc. | MEXER◷ | 70,000 | $1.00 | $70K | +10.4% | Open the original filing on SEC.gov |