Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ACM Research, Inc.ACMR · Entity 3926 | Director · See Remarks · 10% owner | September 08, 2026 | September 10, 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 September 08, 2026 · Filed September 10, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 802,708 |
Ending reported balance
After 2026-09-09 transaction · row 11
11 source rows · reconciled sequenceRow 1 · 2026-09-08 · Exercise / conversion · Acquired 70,000 · Balance 872,708 Row 2 · 2026-09-08 · Sale · Disposed 4,803 · Balance 867,905 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.52 to $76.41, 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), (5), (6), (7), (8), (9), and (10) to this Form 4. Row 3 · 2026-09-08 · Sale · Disposed 51,374 · Balance 816,531 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F3: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.52 to $77.5, inclusive. Row 4 · 2026-09-08 · Sale · Disposed 12,323 · Balance 804,208 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $77.52 to $78.48, inclusive. Row 5 · 2026-09-08 · Sale · Disposed 1,500 · Balance 802,708 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $78.55 to $78.64, inclusive. Row 6 · 2026-09-09 · Exercise / conversion · Acquired 70,000 · Balance 872,708 Row 7 · 2026-09-09 · Sale · Disposed 33,493 · Balance 839,215 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F6: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $73.26 to $74.21, inclusive. Row 8 · 2026-09-09 · Sale · Disposed 18,934 · Balance 820,281 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F7: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $74.26 to $75.22, inclusive. Row 9 · 2026-09-09 · Sale · Disposed 11,666 · Balance 808,615 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F8: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $75.28 to $75.95, inclusive. Row 10 · 2026-09-09 · Sale · Disposed 4,807 · Balance 803,808 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F9: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.38 to $77.35, inclusive. Row 11 · 2026-09-09 · Sale · Disposed 1,100 · Balance 802,708 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026. F10: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $77.59 to $77.59, inclusive. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $1.00 · Expires 2026-12-27 | Direct | 200,000 |
Reported balance
After 2026-09-08 transaction · row 15
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 15 · 2026-09-08 · Exercise / conversion · Disposed 70,000 · Balance 200,000 F11: The option is fully vested and exercisable. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $1.00 · Expires 2026-12-27 | Direct | 130,000 |
Reported balance
After 2026-09-09 transaction · row 16
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 16 · 2026-09-09 · Exercise / conversion · Disposed 70,000 · Balance 130,000 F11: The option is fully vested and exercisable. |
| Class A Common StockSEC Table I · non-derivative | IndirectBy Jing Chen, wife of David H. Wang | 100,002 |
Reported balance
Holding disclosure · report date 2026-09-08 · row 12
Holding and transaction disclosures are not merged.
1 source rowRow 12 · Balance 100,002 |
| Class A Common StockSEC Table I · non-derivative | IndirectBy David Hui Wang and Jing Chen Family Irrevocable Trust for Wang Children | 180,000 |
Reported balance
Holding disclosure · report date 2026-09-08 · row 13
Holding and transaction disclosures are not merged.
1 source rowRow 13 · Balance 180,000 |
| Class A Common StockSEC Table I · non-derivative | IndirectBy Wang-Chen Family Living Trust | 620,001 |
Reported balance
Holding disclosure · report date 2026-09-08 · row 14
Holding and transaction disclosures are not merged.
1 source rowRow 14 · Balance 620,001 |
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 June 5, 2026.
F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.52 to $76.41, 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), (5), (6), (7), (8), (9), and (10) 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 $76.52 to $77.5, inclusive.
F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $77.52 to $78.48, inclusive.
F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $78.55 to $78.64, inclusive.
F6: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $73.26 to $74.21, inclusive.
F7: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $74.26 to $75.22, inclusive.
F8: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $75.28 to $75.95, inclusive.
F9: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $76.38 to $77.35, inclusive.
F10: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $77.59 to $77.59, inclusive.
F11: 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 04, 2025 Filed Sep 5, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 60,000 | $0.00 Strike: $1.00 | $0.00 |
DisclosureSEC source: 0001140361-25-034208 · form4.xml · derivative · entry 11 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 740,002 Underlying: Class A Common Stock · 60,000 shares Expires 2026-12-27 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. F5 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| September 04, 2025 Filed Sep 5, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 60,000 | $26.44 | $1,586,400.00 |
DisclosureSEC source: 0001140361-25-034208 · form4.xml · nonDerivative · entry 5 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 672,708 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024. F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.14 to $26.68, inclusive. Read SEC document |
| September 04, 2025 Filed Sep 5, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 60,000 | $1.00 | $60,000.00 |
DisclosureSEC source: 0001140361-25-034208 · form4.xml · nonDerivative · entry 4 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 732,708 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 |
| September 03, 2025 Filed Sep 5, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 70,000 | $0.00 Strike: $1.00 | $0.00 |
DisclosureSEC source: 0001140361-25-034208 · form4.xml · derivative · entry 10 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 800,002 Underlying: Class A Common Stock · 70,000 shares Expires 2026-12-27 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. F5 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| September 03, 2025 Filed Sep 5, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 3,943 | $27.31 | $107,683.33 |
DisclosureSEC source: 0001140361-25-034208 · form4.xml · nonDerivative · entry 3 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 672,708 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.29 to $27.33, inclusive. Read SEC document |
| September 03, 2025 Filed Sep 5, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 66,057 | $26.73 | $1,765,703.61 |
DisclosureSEC source: 0001140361-25-034208 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 676,651 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.25 to $27.19, 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. Read SEC document |
| September 03, 2025 Filed Sep 5, 2025 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 70,000 | $1.00 | $70,000.00 |
DisclosureSEC source: 0001140361-25-034208 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 742,708 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 |
| May 22, 2025 Filed May 23, 2025 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 60,000 | $0.00 Strike: $1.00 | $0.00 |
DisclosureSEC source: 0001140361-25-020348 · form4.xml · derivative · entry 11 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 870,002 Underlying: Class A Common Stock · 60,000 shares Expires 2026-12-27 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. F5 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| May 22, 2025 Filed May 23, 2025 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 60,000 | $22.63 | $1,357,800.00 |
DisclosureSEC source: 0001140361-25-020348 · form4.xml · nonDerivative · entry 5 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 672,708 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024. F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.43 to $22.99, inclusive. Read SEC document |
| May 22, 2025 Filed May 23, 2025 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 60,000 | $1.00 | $60,000.00 |
DisclosureSEC source: 0001140361-25-020348 · form4.xml · nonDerivative · entry 4 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 732,708 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 |
| May 21, 2025 Filed May 23, 2025 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 70,000 | $0.00 Strike: $1.00 | $0.00 |
DisclosureSEC source: 0001140361-25-020348 · form4.xml · derivative · entry 10 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 930,002 Underlying: Class A Common Stock · 70,000 shares Expires 2026-12-27 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. F5 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| May 21, 2025 Filed May 23, 2025 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 8 | $24.04 | $192.32 |
DisclosureSEC source: 0001140361-25-020348 · form4.xml · nonDerivative · entry 3 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 672,708 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $24.00 to $24.04, inclusive. Read SEC document |
| May 21, 2025 Filed May 23, 2025 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 69,992 | $23.60 | $1,651,811.20 |
DisclosureSEC source: 0001140361-25-020348 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 672,716 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 29, 2024. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $23.00 to $23.99, 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. Read SEC document |
| May 21, 2025 Filed May 23, 2025 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 70,000 | $1.00 | $70,000.00 |
DisclosureSEC source: 0001140361-25-020348 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 742,708 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 13, 2025 Filed Mar 14, 2025 01:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 1,019 | $27.65 | $28,175.35 |
DisclosureSEC source: 0001140361-25-008688 · form4.xml · nonDerivative · entry 4 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 672,708 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024. F5 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.64 to $27.66, inclusive. Read SEC document |
| March 13, 2025 Filed Mar 14, 2025 01:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 36,481 | $27.29 | $995,566.49 |
DisclosureSEC source: 0001140361-25-008688 · form4.xml · nonDerivative · entry 3 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 673,727 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024. F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.64 to $27.62, inclusive. Read SEC document |
| March 12, 2025 Filed Mar 14, 2025 01:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 37,500 | $27.42 | $1,028,250.00 |
DisclosureSEC source: 0001140361-25-008688 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 710,208 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.05 to $27.97, inclusive. Read SEC document |
| March 11, 2025 Filed Mar 14, 2025 01:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 56,250 | $26.57 | $1,494,562.50 |
DisclosureSEC source: 0001140361-25-008688 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 747,708 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $26.35 to $27.00, 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 03, 2025 Filed Mar 5, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 210,000 | $0.00 Strike: $0.50 | $0.00 |
DisclosureSEC source: 0001140361-25-007209 · form4.xml · derivative · entry 7 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 210,000 shares Expires 2025-04-30 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 3, 2025, the reporting person exercised, by net exercise, a previously issued stock option to purchase 210,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 4,048 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on February 28, 2025 of $25.94, and issuing to the reporting person the remaining 205,952 shares of Class A Common Stock. F2 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| March 03, 2025 Filed Mar 5, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Tax withholdingClass A Common Stock | 4,048 | $25.94 | $105,005.12 |
DisclosureSEC source: 0001140361-25-007209 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 803,958 F1 · kind: On March 3, 2025, the reporting person exercised, by net exercise, a previously issued stock option to purchase 210,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 4,048 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on February 28, 2025 of $25.94, and issuing to the reporting person the remaining 205,952 shares of Class A Common Stock. Read SEC document |
| March 03, 2025 Filed Mar 5, 2025 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 210,000 | $0.50 | $105,000.00 |
DisclosureSEC source: 0001140361-25-007209 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 808,006 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 3, 2025, the reporting person exercised, by net exercise, a previously issued stock option to purchase 210,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 4,048 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on February 28, 2025 of $25.94, and issuing to the reporting person the remaining 205,952 shares of Class A Common Stock. Read SEC document |
| November 29, 2024 Filed Dec 3, 2024 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 56,250 | $17.44 | $981,000.00 |
DisclosureSEC source: 0001140361-24-048306 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 598,006 F1 · kind: The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.12 to $17.65, 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) to this Form 4. Read SEC document |
| November 26, 2024 Filed Nov 29, 2024 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 9,484 | $18.31 | $173,652.04 |
DisclosureSEC source: 0001140361-24-048076 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 654,256 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $18.23 to $18.39, inclusive. Read SEC document |
| November 26, 2024 Filed Nov 29, 2024 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 46,766 | $17.80 | $832,434.80 |
DisclosureSEC source: 0001140361-24-048076 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 663,740 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.23 to $18.22, 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) and (3) to this Form 4. Read SEC document |
| November 22, 2024 Filed Nov 26, 2024 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 56,250 | $19.08 | $1,073,250.00 |
DisclosureSEC source: 0001140361-24-047887 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 710,506 F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 14, 2024, as amended on August 13, 2024. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $18.80 to $19.29, 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) to this Form 4. Read SEC document |
| November 14, 2024 Filed Nov 18, 2024 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 270,000 | $0.00 Strike: $0.50 | $0.00 |
DisclosureSEC source: 0001140361-24-047168 · form4.xml · derivative · entry 7 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 210,000 Underlying: Class A Common Stock · 270,000 shares Expires 2025-04-30 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 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 270,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 7,262 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 13, 2024 of $18.59, and issuing to the reporting person the remaining 262,738 shares of Class A Common Stock. F2 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| November 14, 2024 Filed Nov 18, 2024 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Tax withholdingClass A Common Stock | 7,262 | $18.59 | $135,000.58 |
DisclosureSEC source: 0001140361-24-047168 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 766,756 F1 · kind: On November 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 270,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 7,262 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 13, 2024 of $18.59, and issuing to the reporting person the remaining 262,738 shares of Class A Common Stock. Read SEC document |
| November 14, 2024 Filed Nov 18, 2024 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 270,000 | $0.50 | $135,000.00 |
DisclosureSEC source: 0001140361-24-047168 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 774,018 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 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 270,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 7,262 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 13, 2024 of $18.59, and issuing to the reporting person the remaining 262,738 shares of Class A Common Stock. Read SEC document |
| May 29, 2024 Filed May 31, 2024 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 41,090 | $22.62 | $929,455.80 |
DisclosureSEC source: 0001140361-24-028376 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 504,018 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.42 to $23.05, inclusive. Read SEC document |
| May 29, 2024 Filed May 31, 2024 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 45,000 | $22.62 | $1,017,900.00 |
DisclosureSEC source: 0001140361-24-028376 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 545,108 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.42 to $23.04, 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) and (3) to this Form 4. Read SEC document |
| May 22, 2024 Filed May 24, 2024 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 45,000 | $22.81 | $1,026,450.00 |
DisclosureSEC source: 0001140361-24-027456 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 590,108 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.48 to $23.31, inclusive. Read SEC document |
| May 22, 2024 Filed May 24, 2024 20:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 45,000 | $22.81 | $1,026,450.00 |
DisclosureSEC source: 0001140361-24-027456 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 635,108 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.47 to $23.31, 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) and (3) to this Form 4. Read SEC document |
| May 14, 2024 Filed May 16, 2024 13:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 180,000 | $0.00 Strike: $0.50 | $0.00 |
DisclosureSEC source: 0001140361-24-026365 · form4.xml · derivative · entry 7 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 480,000 Underlying: Class A Common Stock · 180,000 shares Expires 2025-04-30 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 May 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 3,910 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on May 13, 2024 of $23.02, and issuing to the reporting person the remaining 176,090 shares of Class A Common Stock. F2 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| May 14, 2024 Filed May 16, 2024 13:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Tax withholdingClass A Common Stock | 3,910 | $23.02 | $90,008.20 |
DisclosureSEC source: 0001140361-24-026365 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 680,108 F1 · kind: On May 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 3,910 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on May 13, 2024 of $23.02, and issuing to the reporting person the remaining 176,090 shares of Class A Common Stock. Read SEC document |
| May 14, 2024 Filed May 16, 2024 13:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 180,000 | $0.50 | $90,000.00 |
DisclosureSEC source: 0001140361-24-026365 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 684,018 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 May 14, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 3,910 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on May 13, 2024 of $23.02, and issuing to the reporting person the remaining 176,090 shares of Class A Common Stock. Read SEC document |
| March 14, 2024 Filed Mar 16, 2024 01:32 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 10,611 | $28.38 | $301,140.18 |
DisclosureSEC source: 0001140361-24-013647 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 504,018 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.10 to $28.53, inclusive. Read SEC document |
| March 14, 2024 Filed Mar 16, 2024 01:32 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 76,478 | $27.51 | $2,103,909.78 |
DisclosureSEC source: 0001140361-24-013647 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 514,629 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.01 to $27.97, 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) and (3) to this Form 4. Read SEC document |
| March 08, 2024 Filed Mar 13, 2024 01:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 45,000 | $30.35 | $1,365,750.00 |
DisclosureSEC source: 0001140361-24-012895 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 591,107 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.06 to $30.74, inclusive. Read SEC document |
| March 08, 2024 Filed Mar 13, 2024 01:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 45,000 | $30.36 | $1,366,200.00 |
DisclosureSEC source: 0001140361-24-012895 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 636,107 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.06 to $30.74, 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) and (3) to this Form 4. Read SEC document |
| March 01, 2024 Filed Mar 6, 2024 02:33 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 180,000 | $0.00 Strike: $0.50 | $0.00 |
DisclosureSEC source: 0001140361-24-011556 · form4.xml · derivative · entry 7 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 660,000 Underlying: Class A Common Stock · 180,000 shares Expires 2025-04-30 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 1, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 2,911 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on February 29, 2024 of $30.92, and issuing to the reporting person the remaining 177,089 shares of Class A Common Stock. F2 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| March 01, 2024 Filed Mar 6, 2024 02:33 UTC | ACM Research, Inc. ACMR · Entity 3926 | Tax withholdingClass A Common Stock | 2,911 | $30.92 | $90,008.12 |
DisclosureSEC source: 0001140361-24-011556 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 681,107 F1 · kind: On March 1, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 2,911 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on February 29, 2024 of $30.92, and issuing to the reporting person the remaining 177,089 shares of Class A Common Stock. Read SEC document |
| March 01, 2024 Filed Mar 6, 2024 02:33 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 180,000 | $0.50 | $90,000.00 |
DisclosureSEC source: 0001140361-24-011556 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 684,018 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 1, 2024, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 2,911 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on February 29, 2024 of $30.92, and issuing to the reporting person the remaining 177,089 shares of Class A Common Stock. Read SEC document |
| November 29, 2023 Filed Dec 1, 2023 21:15 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 39,776 | $17.13 | $681,362.88 |
DisclosureSEC source: 0001140361-23-055757 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 504,018 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $16.55 to $17.73, inclusive. Read SEC document |
| November 29, 2023 Filed Dec 1, 2023 21:15 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 45,000 | $17.14 | $771,300.00 |
DisclosureSEC source: 0001140361-23-055757 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 543,794 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $16.55 to $17.73, 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) and (3) to this Form 4. Read SEC document |
| November 22, 2023 Filed Nov 27, 2023 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 45,000 | $17.68 | $795,600.00 |
DisclosureSEC source: 0001140361-23-054706 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 588,794 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.51 to $18.16, inclusive. Read SEC document |
| November 22, 2023 Filed Nov 27, 2023 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 45,000 | $17.67 | $795,150.00 |
DisclosureSEC source: 0001140361-23-054706 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 633,794 F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 13, 2023. F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.51 to $18.14, 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) and (3) to this Form 4. Read SEC document |
| November 14, 2023 Filed Nov 16, 2023 21:15 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 180,000 | $0.00 Strike: $0.50 | $0.00 |
DisclosureSEC source: 0001140361-23-053658 · form4.xml · derivative · entry 7 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 840,000 Underlying: Class A Common Stock · 180,000 shares Expires 2025-04-30 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 14, 2023, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 5,224 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 13, 2023 of $17.23, and issuing to the reporting person the remaining 174,776 shares of Class A Common Stock. F2 · derivative.exercise_date: The option is fully vested and exercisable Read SEC document |
| November 14, 2023 Filed Nov 16, 2023 21:15 UTC | ACM Research, Inc. ACMR · Entity 3926 | Tax withholdingClass A Common Stock | 5,224 | $17.23 | $90,009.52 |
DisclosureSEC source: 0001140361-23-053658 · form4.xml · nonDerivative · entry 2 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 678,794 F1 · kind: On November 14, 2023, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 5,224 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 13, 2023 of $17.23, and issuing to the reporting person the remaining 174,776 shares of Class A Common Stock. Read SEC document |
| November 14, 2023 Filed Nov 16, 2023 21:15 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 180,000 | $0.50 | $90,000.00 |
DisclosureSEC source: 0001140361-23-053658 · form4.xml · nonDerivative · entry 1 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 684,018 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 14, 2023, the reporting person exercised, by net exercise, a previously issued stock option to purchase 180,000 shares of Class A Common Stock of the Issuer. The reporting person paid the exercise price on a cashless basis, resulting in the Issuer withholding 5,224 shares of Class A Common Stock for payment of the exercise price, based on the closing price of the Issuer's Class A Common Stock on November 13, 2023 of $17.23, and issuing to the reporting person the remaining 174,776 shares of Class A Common Stock. Read SEC document |
| September 13, 2023 Filed Sep 14, 2023 21:00 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 85,116 | $17.68 | $1,504,850.88 |
DisclosureSEC source: 0001140361-23-043978 · form4.xml · nonDerivative · entry 3 Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 504,018 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 June 13, 2023. F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.12 to $18.05, inclusive. 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.