Insider · CIK 0001775007
Mark McKechnie
Files at ACMR (ACM Research, Inc.). First filing Oct 13, 2023, latest Aug 21, 2026.
In brief
Mark McKechnie files SEC Form 4 as officer at ACMR (ACM Research, Inc.). Since Oct 13, 2023, Mark McKechnie has reported 0 open-market buys worth $0 and 8 open-market sells worth $11M, the latest filed on Aug 21, 2026.
A track record needs three past buys with six months of prices behind them; Mark McKechnie has 0, so none is measured yet.
The newest scored trade: sold $4.3M of ACMR on Aug 20, 2026, filed Aug 21, 2026, scored 33 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 3 sells worth $9.8M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ACMR: ACM Research, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 33Weak | ACM Research, Inc. | $4.3M 55,199 shares | -98% | +212% from low-38% from high | |
| 40Moderate | ACM Research, Inc. | $4.5M 98,551 shares | -162% | +147% from low-36% from high | |
| 40Moderate | ACM Research, Inc. | $1.1M 31,250 shares | -324% | +146% from low-21% from high | |
| 24Weak | ACM Research, Inc. | $378k 15,000 shares | -94% | +78% from low-16% from high | |
| 31Weak | ACM Research, Inc. | $411k 15,000 shares | -94% | +95% from low-1% from high | |
| 23Weak | ACM Research, Inc. | $330k 15,000 shares | -94% | +63% from low-2% from high | |
| 12Weak | ACM Research, Inc. | $220k 10,000 shares | -92% | +146% from low0% from high | |
| 12Weak | ACM Research, Inc. | $225k 11,250 shares | -93% | +237% from low0% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 20, 2026 | ACMR ACM RESEARCH, INC. | 55,199 0.09% of outstanding | $4.3M | Aug 20, 2026 | none |
| Mar 12, 2026 | ACMR ACM RESEARCH, INC. | 98,551 0.16% of outstanding | $4.5M | Mar 12, 2026 | none |
| Dec 8, 2025 | ACMR ACM RESEARCH, INC. | 22,500 0.04% of outstanding | $798k | Dec 8, 2025 | $294k |
| Dec 4, 2025 | ACMR ACM RESEARCH, INC. | 8,750 0.01% of outstanding | $294k | Dec 4, 2025 | none |
| May 14, 2025 | ACMR ACM RESEARCH, INC. | 15,000 0.02% of outstanding | $378k | May 14, 2025 | $411k |
| Mar 12, 2025 | ACMR ACM RESEARCH, INC. | 15,000 0.02% of outstanding | $411k | Mar 12, 2025 | $330k |
| Feb 6, 2025 | ACMR ACM RESEARCH, INC. | 15,000 0.02% of outstanding | $330k | Feb 6, 2025 | none |
| Jan 12, 2024 | ACMR ACM RESEARCH, INC. | 10,000 0.02% of outstanding | $220k | Jan 12, 2024 | none |
| Oct 11, 2023 | ACMR ACM RESEARCH, INC. | 11,250 0.02% of outstanding | $225k | Oct 11, 2023 | $540k |
Transactions
Every row this insider has filed, 39 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 20, 2026 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +30,199 | $19.49 | $589k | 31,099 | Aug 21, 2026 |
| Aug 20, 2026 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +25,000 | $13.89 | $347k | 56,099 | Aug 21, 2026 |
| Aug 20, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -13,625 | $76.34 | $1.0M | 42,474 | Aug 21, 2026 |
| Aug 20, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -30,365 | $77.45 | $2.4M | 12,109 | Aug 21, 2026 |
| Aug 20, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -11,209 | $77.89 | $873k | 900 | Aug 21, 2026 |
| Aug 20, 2026 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -30,199 | $0.00 | $0 | 31,250 | Aug 21, 2026 |
| Aug 20, 2026 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -25,000 | $0.00 | $0 | 215,000 | Aug 21, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +60,000 | $13.89 | $833k | 60,900 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -11,910 | $44.89 | $535k | 48,990 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -47,108 | $45.74 | $2.2M | 1,882 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -982 | $46.55 | $46k | 900 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +38,551 | $19.49 | $751k | 39,451 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -8,639 | $44.94 | $388k | 30,812 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -29,348 | $45.74 | $1.3M | 1,464 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -564 | $46.57 | $26k | 900 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -60,000 | $0.00 | $0 | 240,000 | Mar 13, 2026 |
| Mar 12, 2026 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -38,551 | $0.00 | $0 | 61,449 | Mar 13, 2026 |
| Dec 4, 2025 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +8,750 | $4.55 | $40k | 9,650 | Dec 8, 2025 |
| Dec 4, 2025 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -7,754 | $33.50 | $260k | 1,896 | Dec 8, 2025 |
| Dec 4, 2025 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -996 | $34.26 | $34k | 900 | Dec 8, 2025 |
| Dec 8, 2025 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +22,500 | $25.45 | $573k | 23,400 | Dec 8, 2025 |
| Dec 8, 2025 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -22,500 | $35.45 | $798k | 900 | Dec 8, 2025 |
| Dec 4, 2025 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -8,750 | $0.00 | $0 | 0 | Dec 8, 2025 |
| Dec 8, 2025 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -22,500 | $0.00 | $0 | 0 | Dec 8, 2025 |
| May 14, 2025 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +15,000 | $5.60 | $84k | 15,900 | May 16, 2025 |
| May 14, 2025 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -15,000 | $25.22 | $378k | 900 | May 16, 2025 |
| May 14, 2025 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -15,000 | $0.00 | $0 | 0 | May 16, 2025 |
| Mar 12, 2025 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +15,000 | $5.60 | $84k | 15,900 | Mar 14, 2025 |
| Mar 12, 2025 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -15,000 | $27.42 | $411k | 900 | Mar 14, 2025 |
| Mar 12, 2025 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -15,000 | $0.00 | $0 | 15,000 | Mar 14, 2025 |
| Feb 6, 2025 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +15,000 | $5.60 | $84k | 15,900 | Feb 10, 2025 |
| Feb 6, 2025 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -15,000 | $22.00 | $330k | 900 | Feb 10, 2025 |
| Feb 6, 2025 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -15,000 | $0.00 | $0 | 30,000 | Feb 10, 2025 |
| Jan 12, 2024 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +10,000 | $4.55 | $46k | 10,900 | Jan 16, 2024 |
| Jan 12, 2024 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -10,000 | $22.00 | $220k | 900 | Jan 16, 2024 |
| Jan 12, 2024 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -10,000 | $0.00 | $0 | 8,750 | Jan 16, 2024 |
| Oct 11, 2023 | ACMR ACM Research, Inc. | MOption exercise Class A Common Stock10b5-1 | +11,250 | $4.55 | $51k | 12,150 | Oct 13, 2023 |
| Oct 11, 2023 | ACMR ACM Research, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -11,250 | $20.00 | $225k | 900 | Oct 13, 2023 |
| Oct 11, 2023 | ACMR ACM Research, Inc. | MOption exercise Stock Optionderivative10b5-1 | -11,250 | $0.00 | $0 | 18,750 | Oct 13, 2023 |
Questions about Mark McKechnie
Answered from the filings on this page, as of the latest one.
Is Mark McKechnie buying or selling?
In the last 12 months Mark McKechnie reported 0 open-market buys worth $0 and 3 open-market sells worth $9.8M on SEC Form 4; the latest was sold $4.3M of ACMR on Aug 20, 2026. Grants, option exercises and tax withholding are not counted.
How did Mark McKechnie's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mark McKechnie has 0.
Where does Mark McKechnie file Form 4?
Mark McKechnie has filed Form 4 at ACMR (ACM Research, Inc.) as See Remarks. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.