Form 4: ACM Research Executive Sells Shares
Insider Transaction (Form 4)
Mark Mckechnie, See Remarks of ACM Research, Inc., sold 55,199 shares of common stock on August 20, 2026.
Summary
- Option exercise/conversion: acquired 30,199 Class A Common Stock at $19.49 ($588,579) on August 20, 2026; holds 31,099 after (Direct).
- Option exercise/conversion: acquired 25,000 Class A Common Stock at $13.89 ($347,250) on August 20, 2026; holds 56,099 after (Direct).
- Open-market sale: disposed of 13,625 Class A Common Stock at $76.34 ($1,040,132) on August 20, 2026; holds 42,474 after (Direct).
- Open-market sale: disposed of 30,365 Class A Common Stock at $77.45 ($2,351,769) on August 20, 2026; holds 12,109 after (Direct).
- Open-market sale: disposed of 11,209 Class A Common Stock at $77.89 ($873,069) on August 20, 2026; holds 900 after (Direct).
- Option exercise/conversion: disposed of 30,199 Stock Option on August 20, 2026; holds 31,250 after (Direct).
- Option exercise/conversion: disposed of 25,000 Stock Option on August 20, 2026; holds 215,000 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $4,264,971 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Mark Mckechnie — Officer (See Remarks)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-20 | Option exercise/conversion | Class A Common Stock | 30,199 | $19 | $588.6K | 31,099 |
| 2026-08-20 | Option exercise/conversion | Class A Common Stock | 25,000 | $14 | $347.3K | 56,099 |
| 2026-08-20 | Open-market sale | Class A Common Stock | 13,625 | $76 | $1.0M | 42,474 |
| 2026-08-20 | Open-market sale | Class A Common Stock | 30,365 | $77 | $2.4M | 12,109 |
| 2026-08-20 | Open-market sale | Class A Common Stock | 11,209 | $78 | $873.1K | 900 |
| 2026-08-20 | Option exercise/conversion | Stock Option | 30,199 | — | — | 31,250 |
| 2026-08-20 | Option exercise/conversion | Stock Option | 25,000 | — | — | 215,000 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-20 | Option exercise/conversion (30,199 shares) |
| 2026-08-20 | Option exercise/conversion (25,000 shares) |
| 2026-08-20 | Open-market sale (13,625 shares) |
| 2026-08-20 | Open-market sale (30,365 shares) |
| 2026-08-20 | Open-market sale (11,209 shares) |
| 2026-08-20 | Option exercise/conversion (30,199 shares) |
| 2026-08-20 | Option exercise/conversion (25,000 shares) |
Keywords
insider transaction, Form 4, ACMR, ACM Research, Inc., bearish, Mark Mckechnie
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