McKechnie Mark (CIK 1775007) reported 22 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-21). Recent activity: Buy ACMR (30,199 shares), Buy ACMR (25,000 shares), Sell ACMR (13,625 shares), Sell ACMR (30,365 shares), Sell ACMR (11,209 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | ACM Research, Inc. (ACMR) | See Remarks | Buy | 30,199 | $588,579 |
| 2026-08-21 | ACM Research, Inc. (ACMR) | See Remarks | Buy | 25,000 | $347,250 |
| 2026-08-21 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 13,625 | $1.0M |
| 2026-08-21 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 30,365 | $2.4M |
| 2026-08-21 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 11,209 | $873,069 |
| 2026-03-13 | ACM Research, Inc. (ACMR) | See Remarks | Buy | 60,000 | $833,400 |
| 2026-03-13 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 11,910 | $534,640 |
| 2026-03-13 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 47,108 | $2.2M |
| 2026-03-13 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 982 | $45,712 |
| 2026-03-13 | ACM Research, Inc. (ACMR) | See Remarks | Buy | 38,551 | $751,359 |
| 2026-03-13 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 8,639 | $388,237 |
| 2026-03-13 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 29,348 | $1.3M |
| 2026-03-13 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 564 | $26,265 |
| 2025-12-08 | ACM Research, Inc. (ACMR) | See Remarks | Buy | 8,750 | $39,812 |
| 2025-12-08 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 7,754 | $259,759 |
| 2025-12-08 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 996 | $34,123 |
| 2025-12-08 | ACM Research, Inc. (ACMR) | See Remarks | Buy | 22,500 | $572,625 |
| 2025-12-08 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 22,500 | $797,625 |
| 2025-05-16 | ACM Research, Inc. (ACMR) | See Remarks | Buy | 15,000 | $84,000 |
| 2025-05-16 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 15,000 | $378,300 |
| 2025-03-14 | ACM Research, Inc. (ACMR) | See Remarks | Buy | 15,000 | $84,000 |
| 2025-03-14 | ACM Research, Inc. (ACMR) | See Remarks | Sell | 15,000 | $411,300 |
Source: SEC Form 4 filings · as of 2026-08-21