Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ACM Research, Inc.ACMR · Entity 3926 | See Remarks | August 20, 2026 | August 22, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
ACM Research, Inc.
Report date August 20, 2026 · Filed August 22, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 900 |
Ending reported balance
After 2026-08-20 transaction · row 5
5 source rows · reconciled sequenceRow 1 · 2026-08-20 · Exercise / conversion · Acquired 30,199 · Balance 31,099 Row 2 · 2026-08-20 · Exercise / conversion · Acquired 25,000 · Balance 56,099 Row 3 · 2026-08-20 · Sale · Disposed 13,625 · Balance 42,474 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2026. F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.76 to $76.68, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2), (3), and (4) to this Form 4. Row 4 · 2026-08-20 · Sale · Disposed 30,365 · Balance 12,109 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2026. F3: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.81 to $77.79, inclusive. Row 5 · 2026-08-20 · Sale · Disposed 11,209 · Balance 900 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2026. F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $77.84 to $78.4, inclusive. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $19.49 · Expires 2032-08-11 | Direct | 31,250 |
Reported balance
After 2026-08-20 transaction · row 6
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 6 · 2026-08-20 · Exercise / conversion · Disposed 30,199 · Balance 31,250 F5: The option is fully vested and exercisable. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $13.89 · Expires 2033-08-09 | Direct | 215,000 |
Reported balance
After 2026-08-20 transaction · row 7
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 7 · 2026-08-20 · Exercise / conversion · Disposed 25,000 · Balance 215,000 F5: The option is fully vested and exercisable. |
Filing footnotes · ownership attribution and instrument terms
F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2026.
F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.76 to $76.68, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2), (3), and (4) to this Form 4.
F3: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.81 to $77.79, inclusive.
F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $77.84 to $78.4, inclusive.
F5: The option is fully vested and exercisable.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 01, 2023 Filed Sep 6, 2023 01:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 30,000 | $4.55 | $136,500.00 |
DisclosureSEC source: 0001140361-23-042794 · form4.xml · nonDerivative · entry 1 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 30,900 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| August 10, 2023 Filed Aug 14, 2023 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 300,000 | $0.00 Strike: $13.24 | $0.00 |
DisclosureSEC source: 0001140361-23-039742 · form4.xml · derivative · entry 1 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 300,000 Underlying: Class A Common Stock · 300,000 shares Expires 2033-08-09 F1 · derivative.exercise_date: The option will vest and become exercisable as to 75,000 shares on August 10, 2024 and the remaining 225,000 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| August 10, 2023 Filed Aug 22, 2023 01:19 UTC Amendment | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 300,000 | $0.00 Strike: $13.89 | $0.00 |
DisclosureSEC source: 0001140361-23-040768 · form4.xml · derivative · entry 1 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 300,000 Underlying: Class A Common Stock · 300,000 shares Expires 2033-08-09 F1 · derivative.exercise_price: This Form 4 amendment has been filed solely to correct the exercise price of the stock option to purchase shares of Class A Common Stock of the Issuer reported in a Form 4 filed on August 14, 2023 (the "Form 4"). The exercise price was inadvertently stated as $13.24 in the Form 4. The exercise price should have been stated as $13.89 in the Form 4. F2 · derivative.exercise_date: The option will vest and become exercisable as to 75,000 shares on August 10, 2024 and the remaining 225,000 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| December 28, 2022 Filed Dec 31, 2022 02:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 22,500 | $0.00 Strike: $25.45 | $0.00 |
DisclosureSEC source: 0001140361-22-047729 · form4.xml · derivative · entry 1 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,500 Underlying: Class A Common Stock · 22,500 shares Expires 2032-03-03 F1 · derivative.exercise_date: On March 4, 2022, the reporting person was granted an option to purchase 60,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 28, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 22,500 shares. F1 · balance_after: On March 4, 2022, the reporting person was granted an option to purchase 60,000 shares of Class A Common Stock of the Issuer. The option vests and becomes exercisable based on the Issuer's satisfaction of certain performance criteria. On December 28, 2022, the Issuer confirmed that certain of the performance criteria were met, resulting in vesting of the option as to 22,500 shares. Read SEC document |
| August 12, 2022 Filed Aug 16, 2022 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 100,000 | $0.00 Strike: $19.49 | $0.00 |
DisclosureSEC source: 0001140361-22-029903 · form4.xml · derivative · entry 1 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 100,000 Underlying: Class A Common Stock · 100,000 shares Expires 2032-08-11 F1 · derivative.exercise_date: The option will vest and become exercisable as to 25,000 shares on August 12, 2023 and the remaining 75,000 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 378 | $69.07 | $26,108.46 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 10 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 300 F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 399 | $68.01 | $27,135.99 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 9 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 678 F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 400 | $67.13 | $26,852.00 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 8 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,077 F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.98 to $67.60, inclusive. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 588 | $65.59 | $38,566.92 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 7 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,477 F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.22 to $65.69, inclusive. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 1,035 | $64.42 | $66,674.70 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 6 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,065 F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.13 to $64.98, inclusive. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 700 | $63.42 | $44,394.00 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 5 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,100 F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.01 to $63.96, inclusive. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 400 | $61.57 | $24,628.00 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 4 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,800 F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.26 to $62.00, inclusive. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 1,100 | $60.56 | $66,616.00 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 3 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,200 F3 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.06 to $61.01, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3), (4), (5) and (6) to this Form 4. Read SEC document |
| March 10, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 5,000 | $13.85 | $69,250.00 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 2 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,300 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · kind: On March 10, 2022, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| March 09, 2022 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 300 | $13.85 | $4,155.00 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · nonDerivative · entry 1 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 300 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On March 9, 2022, the reporting person exercised a previously issued stock option to purchase 300 shares of Class A Common Stock of the Issuer. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 5,000 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · derivative · entry 9 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,972 Underlying: Class A Common Stock · 5,000 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On November 18, 2021, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer. F7 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and became or become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 166 | $100.60 | $16,699.60 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · nonDerivative · entry 8 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 300 | $99.58 | $29,874.00 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · nonDerivative · entry 7 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 166 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 200 | $97.56 | $19,512.00 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · nonDerivative · entry 6 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 466 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 374 | $96.33 | $36,027.42 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · nonDerivative · entry 5 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 666 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.32 to $96.37, inclusive. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 607 | $93.85 | $56,966.95 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · nonDerivative · entry 4 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,040 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.80 to $93.98, inclusive. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 2,932 | $92.92 | $272,441.44 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · nonDerivative · entry 3 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,647 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.42 to $93.20, inclusive. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 421 | $92.03 | $38,744.63 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · nonDerivative · entry 2 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,579 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.29 to $92.26, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3), (4), (5) and (6) to this Form 4. Read SEC document |
| November 18, 2021 Filed Nov 22, 2021 22:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 5,000 | $13.85 | $69,250.00 |
DisclosureSEC source: 0001140361-21-038928 · form4.xml · nonDerivative · entry 1 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On November 18, 2021, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| August 19, 2021 Filed Aug 20, 2021 20:33 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 5,000 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-21-029025 · form4.xml · derivative · entry 5 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,972 Underlying: Class A Common Stock · 5,000 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On August 19, 2021, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer. F6 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and became or become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| August 19, 2021 Filed Aug 20, 2021 20:33 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 200 | $83.89 | $16,778.00 |
DisclosureSEC source: 0001140361-21-029025 · form4.xml · nonDerivative · entry 4 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.88 to $83.89, inclusive. Read SEC document |
| August 19, 2021 Filed Aug 20, 2021 20:33 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 526 | $82.74 | $43,521.24 |
DisclosureSEC source: 0001140361-21-029025 · form4.xml · nonDerivative · entry 3 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 200 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $82.73 to $83.00, inclusive. Read SEC document |
| August 19, 2021 Filed Aug 20, 2021 20:33 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 4,274 | $81.91 | $350,083.34 |
DisclosureSEC source: 0001140361-21-029025 · form4.xml · nonDerivative · entry 2 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 726 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $81.65 to $82.63, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3), (4) and (5) to this Form 4. Read SEC document |
| August 19, 2021 Filed Aug 20, 2021 20:33 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 5,000 | $13.85 | $69,250.00 |
DisclosureSEC source: 0001140361-21-029025 · form4.xml · nonDerivative · entry 1 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,000 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On August 19, 2021, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| March 12, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 10,028 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-21-008753 · form4.xml · derivative · entry 3 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 19,972 Underlying: Class A Common Stock · 10,028 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On March 12, 2021, the reporting person exercised a previously issued stock option to purchase 10,028 shares of Class A Common Stock of the Issuer. F3 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| March 12, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 10,028 | $87.89 | $881,360.92 |
DisclosureSEC source: 0001140361-21-008753 · form4.xml · nonDerivative · entry 2 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| March 12, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 10,028 | $13.85 | $138,887.80 |
DisclosureSEC source: 0001140361-21-008753 · form4.xml · nonDerivative · entry 1 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,028 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On March 12, 2021, the reporting person exercised a previously issued stock option to purchase 10,028 shares of Class A Common Stock of the Issuer. Read SEC document |
| March 10, 2021 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 5,000 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · derivative · entry 12 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,672 Underlying: Class A Common Stock · 5,000 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · kind: On March 10, 2022, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer. F10 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and became or become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| March 09, 2021 Filed Mar 11, 2022 22:06 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 300 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-22-009174 · form4.xml · derivative · entry 11 McKechnie Mark · CIK 0001775007 · See Remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,672 Underlying: Class A Common Stock · 300 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On March 9, 2022, the reporting person exercised a previously issued stock option to purchase 300 shares of Class A Common Stock of the Issuer. F10 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and became or become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| November 19, 2020 Filed Nov 20, 2020 22:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 7,500 | $0.00 Strike: $16.81 | $0.00 |
DisclosureSEC source: 0001140361-20-026276 · form4.xml · derivative · entry 3 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 22,500 Underlying: Class A Common Stock · 7,500 shares Expires 2029-04-22 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On November 19, 2020, the reporting person exercised a previously issued stock option to purchase 7,500 shares of Class A Common Stock of the Issuer. F3 · derivative.exercise_date: The option vested and became exercisable as to 7,500 shares on April 23, 2020, and the remaining 22,500 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| November 19, 2020 Filed Nov 20, 2020 22:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 7,500 | $74.45 | $558,375.00 |
DisclosureSEC source: 0001140361-20-026276 · form4.xml · nonDerivative · entry 2 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| November 19, 2020 Filed Nov 20, 2020 22:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 7,500 | $16.81 | $126,075.00 |
DisclosureSEC source: 0001140361-20-026276 · form4.xml · nonDerivative · entry 1 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 7,500 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On November 19, 2020, the reporting person exercised a previously issued stock option to purchase 7,500 shares of Class A Common Stock of the Issuer. Read SEC document |
| August 27, 2020 Filed Aug 31, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 4,585 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-20-019470 · form4.xml · derivative · entry 3 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 30,000 Underlying: Class A Common Stock · 4,585 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On August 27, 2020, the reporting person exercised a previously issued stock option to purchase 4,585 shares of Class A Common Stock of the Issuer. F3 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| August 27, 2020 Filed Aug 31, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 4,585 | $93.18 | $427,230.30 |
DisclosureSEC source: 0001140361-20-019470 · form4.xml · nonDerivative · entry 2 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| August 27, 2020 Filed Aug 31, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 4,585 | $13.85 | $63,502.25 |
DisclosureSEC source: 0001140361-20-019470 · form4.xml · nonDerivative · entry 1 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,585 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On August 27, 2020, the reporting person exercised a previously issued stock option to purchase 4,585 shares of Class A Common Stock of the Issuer. Read SEC document |
| June 15, 2020 Filed Jun 17, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 5,415 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-20-014092 · form4.xml · derivative · entry 3 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 34,585 Underlying: Class A Common Stock · 5,415 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On June 15, 2020, the reporting person exercised previously issued stock options to purchase 5,415 shares of Class A Common Stock of the Issuer. F3 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| June 15, 2020 Filed Jun 17, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 5,415 | $54.34 | $294,251.10 |
DisclosureSEC source: 0001140361-20-014092 · form4.xml · nonDerivative · entry 2 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| June 15, 2020 Filed Jun 17, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 5,415 | $13.85 | $74,997.75 |
DisclosureSEC source: 0001140361-20-014092 · form4.xml · nonDerivative · entry 1 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,415 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On June 15, 2020, the reporting person exercised previously issued stock options to purchase 5,415 shares of Class A Common Stock of the Issuer. Read SEC document |
| November 04, 2019 Filed Nov 7, 2019 02:43 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 20,000 | $0.00 Strike: $13.64 | $0.00 |
DisclosureSEC source: 0001140361-19-019960 · form4.xml · derivative · entry 1 McKechnie Mark · CIK 0001775007 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,000 Underlying: Class A Common Stock · 20,000 shares Expires 2029-11-03 F1 · derivative.exercise_date: The option will vest and become exercisable as to 5,000 shares on November 4, 2020 and the remaining 15,000 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.