Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ACM Research, Inc.ACMR · Entity 3926 | See remarks | June 04, 2026 | June 06, 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 June 04, 2026 · Filed June 06, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 100,002 |
Ending reported balance
After 2026-06-05 transaction · row 9
9 source rows · reconciled sequenceRow 1 · 2026-06-04 · Exercise / conversion · Acquired 13,351 · Balance 113,353 Row 2 · 2026-06-04 · Sale · Disposed 1,300 · Balance 112,053 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 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 $83.61 to $84.4, 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), and (8) to this Form 4. Row 3 · 2026-06-04 · Sale · Disposed 9,212 · Balance 102,841 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 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 $84.63 to $85.6, inclusive. Row 4 · 2026-06-04 · Sale · Disposed 2,839 · Balance 100,002 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 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 $85.7 to $86.19, inclusive. Row 5 · 2026-06-05 · Exercise / conversion · Acquired 5,399 · Balance 105,401 Row 6 · 2026-06-05 · Sale · Disposed 2,384 · Balance 103,017 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 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 $81.22 to $82.07, inclusive. Row 7 · 2026-06-05 · Sale · Disposed 968 · Balance 102,049 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 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 $82.38 to $82.89, inclusive. Row 8 · 2026-06-05 · Sale · Disposed 400 · Balance 101,649 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 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 $83.85 to $84.5, inclusive. Row 9 · 2026-06-05 · Sale · Disposed 1,647 · Balance 100,002 F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 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 $85.27 to $85.72, inclusive. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $13.89 · Expires 2033-08-09 | Direct | 42,899 |
Reported balance
After 2026-06-04 transaction · row 10
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 10 · 2026-06-04 · Exercise / conversion · Disposed 13,351 · Balance 42,899 F9: The option is fully vested and exercisable. |
| Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $13.89 · Expires 2033-08-09 | Direct | 37,500 |
Reported balance
After 2026-06-05 transaction · row 11
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 11 · 2026-06-05 · Exercise / conversion · Disposed 5,399 · Balance 37,500 F9: 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 March 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 $83.61 to $84.4, 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), and (8) 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 $84.63 to $85.6, inclusive.
F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $85.7 to $86.19, inclusive.
F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $81.22 to $82.07, inclusive.
F6: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $82.38 to $82.89, inclusive.
F7: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $83.85 to $84.5, inclusive.
F8: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $85.27 to $85.72, inclusive.
F9: 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 |
|---|---|---|---|---|---|---|
| April 05, 2021 Filed Apr 5, 2021 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Tax withholdingClass A Common Stock | 223 | $90.08 | $20,087.84 |
DisclosureSEC source: 0001140361-21-011668 · form4.xml · nonDerivative · entry 2 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 56,445 F1 · kind: On April 5, 2021, the reporting person exercised, by net exercise, a previously issued stock option to purchase 13,334 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 223 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 April 1, 2021 of $90.08, and issuing to the reporting person the remaining 13,111 shares of Class A Common Stock. Read SEC document |
| April 05, 2021 Filed Apr 5, 2021 21:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 13,334 | $1.50 | $20,001.00 |
DisclosureSEC source: 0001140361-21-011668 · form4.xml · nonDerivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 56,668 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 April 5, 2021, the reporting person exercised, by net exercise, a previously issued stock option to purchase 13,334 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 223 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 April 1, 2021 of $90.08, and issuing to the reporting person the remaining 13,111 shares of Class A Common Stock. Read SEC document |
| March 16, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 10,000 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-21-008754 · form4.xml · derivative · entry 6 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 20,000 Underlying: Class A Common Stock · 10,000 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · kind: On March 16, 2021, the reporting person exercised a previously issued stock option to purchase 10,000 shares of Class A Common Stock of the Issuer. F4 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| March 16, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 10,000 | $93.69 | $936,900.00 |
DisclosureSEC source: 0001140361-21-008754 · form4.xml · nonDerivative · entry 4 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 43,334 F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| March 16, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 10,000 | $13.85 | $138,500.00 |
DisclosureSEC source: 0001140361-21-008754 · form4.xml · nonDerivative · entry 3 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 53,334 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 March 16, 2021, the reporting person exercised a previously issued stock option to purchase 10,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| March 15, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 10,000 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001140361-21-008754 · form4.xml · derivative · entry 5 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 30,000 Underlying: Class A Common Stock · 10,000 shares Expires 2028-07-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · kind: On March 15, 2021, the reporting person exercised a previously issued stock option to purchase 10,000 shares of Class A Common Stock of the Issuer. F4 · derivative.exercise_date: The option vested and became exercisable as to 10,000 shares on August 1, 2019, and the remaining 30,000 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date. Read SEC document |
| March 15, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 10,000 | $91.67 | $916,700.00 |
DisclosureSEC source: 0001140361-21-008754 · form4.xml · nonDerivative · entry 2 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 43,334 F2 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Read SEC document |
| March 15, 2021 Filed Mar 16, 2021 21:31 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 10,000 | $13.85 | $138,500.00 |
DisclosureSEC source: 0001140361-21-008754 · form4.xml · nonDerivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 53,334 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 15, 2021, the reporting person exercised a previously issued stock option to purchase 10,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| November 13, 2020 Filed Nov 16, 2020 22:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 9,670 | $88.07 | $851,636.90 |
DisclosureSEC source: 0001140361-20-025718 · form4.xml · nonDerivative · entry 2 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 43,334 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 |
| November 12, 2020 Filed Nov 16, 2020 22:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 10,000 | $88.63 | $886,300.00 |
DisclosureSEC source: 0001140361-20-025718 · form4.xml · nonDerivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 53,004 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 |
| November 05, 2020 Filed Nov 9, 2020 22:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 20,000 | $0.00 Strike: $1.50 | $0.00 |
DisclosureSEC source: 0001140361-20-025064 · form4.xml · derivative · entry 3 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 13,334 Underlying: Class A Common Stock · 20,000 shares Expires 2025-05-01 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 5, 2020, the reporting person exercised, by net exercise, a previously issued stock option to purchase 20,000 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 330 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 4, 2020 of $91.00, and issuing to the reporting person the remaining 19,670 shares of Class A Common Stock. F2 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| November 05, 2020 Filed Nov 9, 2020 22:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Tax withholdingClass A Common Stock | 330 | $91.00 | $30,030.00 |
DisclosureSEC source: 0001140361-20-025064 · form4.xml · nonDerivative · entry 2 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 63,004 F1 · kind: On November 5, 2020, the reporting person exercised, by net exercise, a previously issued stock option to purchase 20,000 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 330 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 4, 2020 of $91.00, and issuing to the reporting person the remaining 19,670 shares of Class A Common Stock. Read SEC document |
| November 05, 2020 Filed Nov 9, 2020 22:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 20,000 | $1.50 | $30,000.00 |
DisclosureSEC source: 0001140361-20-025064 · form4.xml · nonDerivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 63,334 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 5, 2020, the reporting person exercised, by net exercise, a previously issued stock option to purchase 20,000 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 330 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 4, 2020 of $91.00, and issuing to the reporting person the remaining 19,670 shares of Class A Common Stock. Read SEC document |
| September 14, 2020 Filed Sep 15, 2020 00:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 4,941 | $0.00 Strike: $0.75 | $0.00 |
DisclosureSEC source: 0001140361-20-020399 · form4.xml · derivative · entry 6 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 4,941 shares Expires 2021-05-01 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. F3 · kind: On September 14, 2020, the reporting person exercised a previously issued stock option to purchase 4,941 shares of Class A Common Stock of the Issuer. F4 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| September 14, 2020 Filed Sep 15, 2020 00:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 4,941 | $66.70 | $329,564.70 |
DisclosureSEC source: 0001140361-20-020399 · form4.xml · nonDerivative · entry 4 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 43,334 F2 · 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 |
| September 14, 2020 Filed Sep 15, 2020 00:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 4,941 | $0.75 | $3,705.75 |
DisclosureSEC source: 0001140361-20-020399 · form4.xml · nonDerivative · entry 3 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 48,275 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 September 14, 2020, the reporting person exercised a previously issued stock option to purchase 4,941 shares of Class A Common Stock of the Issuer. Read SEC document |
| September 10, 2020 Filed Sep 15, 2020 00:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 5,000 | $0.00 Strike: $0.75 | $0.00 |
DisclosureSEC source: 0001140361-20-020399 · form4.xml · derivative · entry 5 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,941 Underlying: Class A Common Stock · 5,000 shares Expires 2021-05-01 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 September 10, 2020, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer. F4 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| September 10, 2020 Filed Sep 15, 2020 00:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | SaleClass A Common Stock | 5,000 | $60.75 | $303,750.00 |
DisclosureSEC source: 0001140361-20-020399 · form4.xml · nonDerivative · entry 2 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 43,334 F2 · 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 |
| September 10, 2020 Filed Sep 15, 2020 00:30 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 5,000 | $0.75 | $3,750.00 |
DisclosureSEC source: 0001140361-20-020399 · form4.xml · nonDerivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 48,334 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 10, 2020, the reporting person exercised a previously issued stock option to purchase 5,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| September 30, 2019 Filed Oct 2, 2019 20:35 UTC Amendment | ACM Research, Inc. ACMR · Entity 3926 | Disposition to issuerStock Option · Derivative | 13,393 | $12.45 Strike: $0.75 | $166,675.89 |
DisclosureSEC source: 0001654954-19-011373 · section16.xml · derivative · entry 2 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,941 Underlying: Class A Common Stock · 13,393 shares Expires 2021-05-01 F1 · price: In connection with a public offering of Class A Common Stock by the Issuer, the reporting person and certain other stockholders entered into an Equity Purchase Agreement dated August 4, 2019 pursuant to which the reporting person and such stockholders agreed to sell, and the Issuer agreed to purchase, shares of the Issuer's Class A Common Stock funded by the net proceeds, if any, from the Issuer's sale of Class A Common Stock pursuant to an exercise of the underwriters' over-allotment option. The transaction date for the original Form 4 was August 23, 2019, the date of the closing of the underwriters' over-allotment option and therefore the date on which the obligations of the parties to the Equity Purchase Agreement became fixed and irrevocable. At the time of the filing of the original Form 4, it was contemplated that the reporting person would sell 13,393 of the outstanding shares of Class A Common Stock held by the reporting person in order to satisfy his obligations under the Equity Purchase Agreement and the original Form 4 accordingly reported a reduction of 13,393 in the number of shares of Class A Common Stock beneficially owned by the reporting person. Subsequent to the filing of the original Form 4, the reporting person and the Issuer agreed that the reporting person would instead satisfy his obligations under the Equity Purchase Agreement by cancelling the reporting person's rights to purchase 13,393 shares of Class A Common Stock under an outstanding stock option agreement. On September 30, 2019, such rights were cancelled in exchange for payment to the reporting person of $166,675.89 in cash, representing the purchase price due to the reporting person pursuant to the Equity Purchase Agreement net of the exercise price attributable to the 13,393 shares cancelled under the reporting person's stock option. Because no outstanding shares of Class A Common Stock were ultimately sold by the reporting person pursuant to the Equity Purchase Agreement, the reduction in the number of such shares reflected in the original Form 4 is not reflected in this amendment. F2 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| August 23, 2019 Filed Aug 28, 2019 00:39 UTC | ACM Research, Inc. ACMR · Entity 3926 | Disposition to issuerClass A Common Stock | 13,393 | $13.20 | $176,720.64 |
DisclosureSEC source: 0001654954-19-010057 · section16.xml · nonDerivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 29,941 F1 · price: In connection with a public offering of Class A Common Stock by the Issuer, the reporting person and certain other stockholders entered into an Equity Purchase Agreement dated August 4, 2019 pursuant to which the reporting person and such stockholders agreed to sell, and the Issuer agreed to purchase, shares of the Issuer's Common Stock funded by the net proceeds, if any, from the Issuer's sale of Class A Common Stock pursuant to an exercise of the underwriters' over-allotment option. The transaction being reported relates to the reporting person's sale under the Equity Purchase Agreement. The obligations of the parties to the Equity Purchase Agreement became fixed and irrevocable as of the transaction date, which is the date of the closing of the underwriters' over-allotment option. Read SEC document |
| August 04, 2019 Filed Aug 6, 2019 21:14 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 10,000 | $0.00 Strike: $16.00 | $0.00 |
DisclosureSEC source: 0001654954-19-008926 · section16.xml · derivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,000 Underlying: Class A Common Stock · 10,000 shares Expires 2029-08-03 F1 · derivative.exercise_date: The option will vest and become exercisable as to 2,500 shares on August 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 |
| May 09, 2019 Filed May 10, 2019 21:25 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionStock Option · Derivative | 10,000 | $0.00 Strike: $0.75 | $0.00 |
DisclosureSEC source: 0001654954-19-005705 · section16.xml · derivative · entry 2 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 23,334 Underlying: Class A Common Stock · 10,000 shares Expires 2021-05-01 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 May 9, 2019, the reporting person exercised previously issued stock options to purchase 10,000 shares of Class A Common Stock of the Issuer. F2 · derivative.exercise_date: The option is fully vested and exercisable. Read SEC document |
| May 09, 2019 Filed May 10, 2019 21:25 UTC | ACM Research, Inc. ACMR · Entity 3926 | Exercise / conversionClass A Common Stock | 10,000 | $0.75 | $7,500.00 |
DisclosureSEC source: 0001654954-19-005705 · section16.xml · nonDerivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 43,334 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 9, 2019, the reporting person exercised previously issued stock options to purchase 10,000 shares of Class A Common Stock of the Issuer. Read SEC document |
| August 01, 2018 Filed Oct 23, 2018 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | GrantStock Option · Derivative | 40,000 | $0.00 Strike: $13.85 | $0.00 |
DisclosureSEC source: 0001654954-18-011483 · section16.xml · derivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 40,000 Underlying: Class A Common Stock · 40,000 shares Expires 2028-07-31 F1 · derivative.exercise_date: The option will vest and become exercisable as to 10,000 shares on August 1, 2019 and the remaining 30,000 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 |
| June 04, 2018 Filed Jul 31, 2018 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | ConversionClass B Common Stock · Derivative | 25,667 | $0.00 | $0.00 |
DisclosureSEC source: 0001654954-18-008247 · section16.xml · derivative · entry 2 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Class A Common Stock · 25,667 shares Expires not disclosed 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 · derivative.exercise_price: Class B Common Stock of the Issuer is convertible into Class A Common Stock of the Issuer on a 1-for-1 basis upon certain transfers of such shares and at the holder's election, and has no expiration date. F1 · derivative.exercise_date: Class B Common Stock of the Issuer is convertible into Class A Common Stock of the Issuer on a 1-for-1 basis upon certain transfers of such shares and at the holder's election, and has no expiration date. F1 · derivative.expiration_date: Class B Common Stock of the Issuer is convertible into Class A Common Stock of the Issuer on a 1-for-1 basis upon certain transfers of such shares and at the holder's election, and has no expiration date. Read SEC document |
| June 04, 2018 Filed Jul 31, 2018 20:35 UTC | ACM Research, Inc. ACMR · Entity 3926 | ConversionClass A Common Stock | 25,667 | $0.00 | $0.00 |
DisclosureSEC source: 0001654954-18-008247 · section16.xml · nonDerivative · entry 1 Cheav Sotheara · CIK 0001721279 · See remarks 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 33,334 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.