Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ACM Research, Inc.ACMR · Entity 3926 | See remarks | March 05, 2026 | March 09, 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 March 05, 2026 · Filed March 09, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 50,001 |
Ending reported balance
After 2026-03-06 transaction · row 6
6 source rows · reconciled sequenceRow 1 · 2026-03-05 · Exercise / conversion · Acquired 15,000 · Balance 65,001 Row 2 · 2026-03-05 · Sale · Disposed 8,050 · Balance 56,951 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.16 to $50.06, 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), (4) and (5) to this Form 4. Row 3 · 2026-03-05 · Sale · Disposed 6,950 · Balance 50,001 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. F3: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $50.16 to $50.54, inclusive. Row 4 · 2026-03-06 · Exercise / conversion · Acquired 15,000 · Balance 65,001 Row 5 · 2026-03-06 · Sale · Disposed 14,800 · Balance 50,201 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $45.51 to $46.48, inclusive. Row 6 · 2026-03-06 · Sale · Disposed 200 · Balance 50,001 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $46.52 to $46.63, inclusive. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $4.55 · Expires 2029-11-03 | Direct | 0 |
Reported balance
After 2026-03-05 transaction · row 7
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 7 · 2026-03-05 · Exercise / conversion · Disposed 15,000 · Balance 0 F6: The option is fully vested and exercisable. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $4.55 · Expires 2029-11-03 | Direct | 0 |
Reported balance
After 2026-03-06 transaction · row 8
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 8 · 2026-03-06 · Exercise / conversion · Disposed 15,000 · Balance 0 F6: 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 December 2, 2025.
F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.16 to $50.06, 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), (4) and (5) 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 $50.16 to $50.54, inclusive.
F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $45.51 to $46.48, inclusive.
F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $46.52 to $46.63, inclusive.
F6: 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 |
|---|---|---|---|---|---|---|
| March 06, 2026 Filed Mar 9, 2026 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 15,000 | $0.00 Strike: $4.55 | $0.00 |
DisclosureSEC source: 0001140361-26-008479 · form4.xml · derivative · entry 8 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 15,000 shares Expires 2029-11-03 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. F6 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| March 06, 2026 Filed Mar 9, 2026 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 200 | $46.58 | $9,316.00 |
DisclosureSEC source: 0001140361-26-008479 · form4.xml · nonDerivative · entry 6 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,001 F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. F5 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $46.52 to $46.63, inclusive. Read SEC document |
| March 06, 2026 Filed Mar 9, 2026 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 14,800 | $46.07 | $681,836.00 |
DisclosureSEC source: 0001140361-26-008479 · form4.xml · nonDerivative · entry 5 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,201 F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $45.51 to $46.48, inclusive. Read SEC document |
| March 06, 2026 Filed Mar 9, 2026 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 15,000 | $4.55 | $68,250.00 |
DisclosureSEC source: 0001140361-26-008479 · form4.xml · nonDerivative · entry 4 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 65,001 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 |
| March 05, 2026 Filed Mar 9, 2026 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 15,000 | $0.00 Strike: $4.55 | $0.00 |
DisclosureSEC source: 0001140361-26-008479 · form4.xml · derivative · entry 7 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 15,000 shares Expires 2029-11-03 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. F6 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| March 05, 2026 Filed Mar 9, 2026 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 6,950 | $50.24 | $349,168.00 |
DisclosureSEC source: 0001140361-26-008479 · form4.xml · nonDerivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,001 F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $50.16 to $50.54, inclusive. Read SEC document |
| March 05, 2026 Filed Mar 9, 2026 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 8,050 | $49.81 | $400,970.50 |
DisclosureSEC source: 0001140361-26-008479 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 56,951 F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.16 to $50.06, 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), (4) and (5) to this Form 4. Read SEC document |
| March 05, 2026 Filed Mar 9, 2026 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 15,000 | $4.55 | $68,250.00 |
DisclosureSEC source: 0001140361-26-008479 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 65,001 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 |
| November 13, 2025 Filed Nov 14, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 15,000 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-25-042345 · form4.xml · derivative · entry 6 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 15,000 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. F3 · kind: On November 13, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. F4 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| November 13, 2025 Filed Nov 14, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 15,000 | $33.77 | $506,550.00 |
DisclosureSEC source: 0001140361-25-042345 · form4.xml · nonDerivative · entry 4 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,001 F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 13, 2025. Read SEC document |
| November 13, 2025 Filed Nov 14, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 15,000 | $5.60 | $84,000.00 |
DisclosureSEC source: 0001140361-25-042345 · form4.xml · nonDerivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 65,001 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. F3 · kind: On November 13, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| November 12, 2025 Filed Nov 14, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 15,000 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-25-042345 · form4.xml · derivative · entry 5 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 15,000 Underlying: Class A Common Stock · 15,000 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 12, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. F4 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| November 12, 2025 Filed Nov 14, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 15,000 | $32.76 | $491,400.00 |
DisclosureSEC source: 0001140361-25-042345 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,001 F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 13, 2025. Read SEC document |
| November 12, 2025 Filed Nov 14, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 15,000 | $5.60 | $84,000.00 |
DisclosureSEC source: 0001140361-25-042345 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 65,001 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 12, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| July 07, 2025 Filed Jul 9, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 15,000 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-25-025348 · form4.xml · derivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 30,000 Underlying: Class A Common Stock · 15,000 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 July 7, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. F3 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| July 07, 2025 Filed Jul 9, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 15,000 | $28.00 | $420,000.00 |
DisclosureSEC source: 0001140361-25-025348 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,001 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 12, 2025. Read SEC document |
| July 07, 2025 Filed Jul 9, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 15,000 | $5.60 | $84,000.00 |
DisclosureSEC source: 0001140361-25-025348 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 65,001 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 July 7, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| June 24, 2025 Filed Jun 26, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 15,000 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-25-023830 · form4.xml · derivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 45,000 Underlying: Class A Common Stock · 15,000 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 June 24, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. F3 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| June 24, 2025 Filed Jun 26, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 15,000 | $26.00 | $390,000.00 |
DisclosureSEC source: 0001140361-25-023830 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,001 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 12, 2025. Read SEC document |
| June 24, 2025 Filed Jun 26, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 15,000 | $5.60 | $84,000.00 |
DisclosureSEC source: 0001140361-25-023830 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 65,001 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 24, 2025, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| February 28, 2024 Filed Mar 2, 2024 02:32 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 7,500 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-24-010870 · form4.xml · derivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 60,000 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 February 28, 2024, 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 is fully vested and exercisable. Read SEC document |
| February 28, 2024 Filed Mar 2, 2024 02:32 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 7,500 | $25.20 | $189,000.00 |
DisclosureSEC source: 0001140361-24-010870 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,001 F2 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 14, 2023. Read SEC document |
| February 28, 2024 Filed Mar 2, 2024 02:32 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 7,500 | $5.60 | $42,000.00 |
DisclosureSEC source: 0001140361-24-010870 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 57,501 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 February 28, 2024, 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 |
| December 26, 2023 Filed Dec 29, 2023 02:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 7,500 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-23-059931 · form4.xml · derivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 67,500 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 December 26, 2023, 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 is fully vested and exercisable. Read SEC document |
| December 26, 2023 Filed Dec 29, 2023 02:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 7,500 | $20.00 | $150,000.00 |
DisclosureSEC source: 0001140361-23-059931 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 50,001 F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 14, 2023. Read SEC document |
| December 26, 2023 Filed Dec 29, 2023 02:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 7,500 | $5.60 | $42,000.00 |
DisclosureSEC source: 0001140361-23-059931 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 57,501 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 December 26, 2023, 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 10, 2023 Filed Aug 14, 2023 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 100,000 | $0.00 Strike: $13.24 | $0.00 |
DisclosureSEC source: 0001140361-23-039743 · form4.xml · derivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 100,000 Underlying: Class A Common Stock · 100,000 shares Expires 2033-08-09 F1 · derivative.exercise_date: The option will vest and become exercisable as to 25,000 shares on August 10, 2024 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 |
| August 10, 2023 Filed Aug 22, 2023 01:18 UTC Amendment | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 100,000 | $0.00 Strike: $13.89 | $0.00 |
DisclosureSEC source: 0001140361-23-040764 · form4.xml · derivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 100,000 Underlying: Class A Common Stock · 100,000 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 25,000 shares on August 10, 2024 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 |
| July 03, 2023 Filed Jul 5, 2023 22:52 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 22,500 | $0.00 Strike: $1.77 | $0.00 |
DisclosureSEC source: 0001140361-23-033166 · form4.xml · derivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 22,500 shares Expires 2028-01-24 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 · derivative.exercise_date: The option was fully vested and exercisable. F3 · balance_after: Due to an administrative error, the reporting person's previous Form 4 filed on March 13, 2023 reflected an incorrect amount of zero for number of derivative securities beneficially owned following reported transaction(s) in Column 9 rather than 22,500. This filing corrects that error. Read SEC document |
| July 03, 2023 Filed Jul 5, 2023 22:52 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 22,500 | $15.00 | $337,500.00 |
DisclosureSEC source: 0001140361-23-033166 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 50,001 F1 · 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 |
| July 03, 2023 Filed Jul 5, 2023 22:52 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 22,500 | $1.77 | $39,825.00 |
DisclosureSEC source: 0001140361-23-033166 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 72,501 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 |
| March 09, 2023 Filed Mar 14, 2023 01:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 22,500 | $0.00 Strike: $1.77 | $0.00 |
DisclosureSEC source: 0001140361-23-011465 · form4.xml · derivative · entry 6 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 22,500 shares Expires 2028-01-24 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. F6 · derivative.exercise_date: The option was fully vested and exercisable. Read SEC document |
| March 09, 2023 Filed Mar 14, 2023 01:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 1,110 | $12.55 | $13,930.50 |
DisclosureSEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 5 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 50,001 F1 · 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 $12.50 to $12.59, inclusive. Read SEC document |
| March 09, 2023 Filed Mar 14, 2023 01:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 9,144 | $12.44 | $113,751.36 |
DisclosureSEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 4 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 51,111 F1 · 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 $12.40 to $12.50, inclusive. Read SEC document |
| March 09, 2023 Filed Mar 14, 2023 01:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 9,546 | $12.33 | $117,702.18 |
DisclosureSEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 60,255 F1 · kind: The sales reported on this Form 4 were 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 $12.29 to $12.39, inclusive. Read SEC document |
| March 09, 2023 Filed Mar 14, 2023 01:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 2,700 | $12.21 | $32,967.00 |
DisclosureSEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 69,801 F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.18 to $12.26, 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 (2) through (5) to this Form 4. Read SEC document |
| March 09, 2023 Filed Mar 14, 2023 01:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 22,500 | $1.77 | $39,825.00 |
DisclosureSEC source: 0001140361-23-011465 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 72,501 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 |
| December 31, 2022 Filed Jan 4, 2023 23:09 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 22,500 | $0.00 Strike: $25.45 | $0.00 |
DisclosureSEC source: 0001140361-23-000514 · form4.xml · derivative · entry 1 Feng Lisa · CIK 0001779777 · 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 30,000 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 31, 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 30,000 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 31, 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 |
| November 03, 2021 Filed Nov 5, 2021 21:47 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 2,437 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-21-036877 · form4.xml · derivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 2,437 shares Expires 2027-11-01 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 3, 2021, the reporting person exercised a previously issued stock option to purchase 2,437 shares of Class A Common Stock of the Issuer. F2 · derivative.exercise_date: The option vested and became exercisable as to 4,167 shares on August 15, 2018 and the remaining 12,500 shares vested and became exercisable in equal monthly installments over the following 36 months. Read SEC document |
| November 03, 2021 Filed Nov 5, 2021 21:47 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 2,437 | $5.60 | $13,647.20 |
DisclosureSEC source: 0001140361-21-036877 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,667 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 3, 2021, the reporting person exercised a previously issued stock option to purchase 2,437 shares of Class A Common Stock of the Issuer. Read SEC document |
| February 26, 2021 Filed Mar 2, 2021 22:36 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 3,470 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-21-006959 · form4.xml · derivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,437 Underlying: Class A Common Stock · 3,470 shares Expires 2027-11-01 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 February 26, 2021, the reporting person exercised a previously issued stock option to purchase 3,470 shares of Class A Common Stock of the Issuer. F2 · derivative.exercise_date: The option vested and became exercisable as to 4,167 shares on August 15, 2018 and the remaining 12,500 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 |
| February 26, 2021 Filed Mar 2, 2021 22:36 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 3,470 | $5.60 | $19,432.00 |
DisclosureSEC source: 0001140361-21-006959 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 14,230 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 February 26, 2021, the reporting person exercised a previously issued stock option to purchase 3,470 shares of Class A Common Stock of the Issuer. Read SEC document |
| September 16, 2020 Filed Sep 18, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 15,000 | $0.00 Strike: $5.31 | $0.00 |
DisclosureSEC source: 0001140361-20-020901 · form4.xml · derivative · entry 3 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,000 Underlying: Class A Common Stock · 15,000 shares Expires 2028-01-24 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 September 16, 2020, the reporting person exercised a previously issued stock option to purchase 15,000 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 January 1, 2019 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 |
| September 16, 2020 Filed Sep 18, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 15,000 | $72.30 | $1,084,500.00 |
DisclosureSEC source: 0001140361-20-020901 · form4.xml · nonDerivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,760 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 |
| September 16, 2020 Filed Sep 18, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 15,000 | $5.31 | $79,650.00 |
DisclosureSEC source: 0001140361-20-020901 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,760 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 September 16, 2020, the reporting person exercised a previously issued stock option to purchase 15,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| April 28, 2020 Filed Jun 26, 2020 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 10,000 | $0.00 Strike: $38.26 | $0.00 |
DisclosureSEC source: 0001140361-20-014945 · form4.xml · derivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,000 Underlying: Class A Common Stock · 10,000 shares Expires 2030-04-27 F1 · derivative.exercise_date: The option will vest and become exercisable as to 2,500 shares on April 28, 2021 and the remaining 7,500 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 18, 2020 Filed Mar 20, 2020 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 3,817 | $0.00 Strike: $5.60 | $0.00 |
DisclosureSEC source: 0001140361-20-006446 · form4.xml · derivative · entry 2 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,907 Underlying: Class A Common Stock · 3,817 shares Expires 2027-11-01 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 18, 2020, the reporting person exercised previously issued stock options to purchase 3,817 shares of Class A Common Stock of the Issuer. F2 · derivative.exercise_date: The option vested and became exercisable as to 4,167 shares on August 15, 2018 and the remaining 12,500 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 |
| March 18, 2020 Filed Mar 20, 2020 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 3,817 | $5.60 | $21,375.20 |
DisclosureSEC source: 0001140361-20-006446 · form4.xml · nonDerivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,760 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 18, 2020, the reporting person exercised previously issued stock options to purchase 3,817 shares of Class A Common Stock of the Issuer. Read SEC document |
| November 04, 2019 Filed Nov 7, 2019 02:42 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 10,000 | $0.00 Strike: $13.64 | $0.00 |
DisclosureSEC source: 0001140361-19-019958 · form4.xml · derivative · entry 1 Feng Lisa · CIK 0001779777 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,000 Underlying: Class A Common Stock · 10,000 shares Expires 2029-11-03 F1 · derivative.exercise_date: The option will vest and become exercisable as to 2,500 shares on November 4, 2020 and the remaining 7,500 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.