ACMR

SEC 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.

SEC 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.

SEC source: 0001654954-19-011375 · section16.xml · derivative · entry 2

Hu Chenming · CIK 0001316320 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,102

Underlying: Class A Common Stock · 22,232 shares

Expires 2026-12-27

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 22,232 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 22,232 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 22,232 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 $226,655.24 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 22,232 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 vested and became exercisable as to 20,833 shares on May 1, 2017 and the remaining 62,501 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC source: 0001654954-19-011374 · section16.xml · derivative · entry 2

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,388

Underlying: Class A Common Stock · 17,946 shares

Expires 2026-12-27

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 exercise his rights to purchase 17,946 shares of Class A Common Stock under an outstanding stock option agreement in order to satisfy his obligations under the Equity Purchase Agreement. 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 17,946 shares of Class A Common Stock under the outstanding stock option agreement. On September 30, 2019, such rights were cancelled in exchange for payment to the reporting person of $182,959.47 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 17,946 shares cancelled under the reporting person's stock option.

F2 · derivative.exercise_date: The option vested and became exercisable as to 8,333 shares on March 1, 2017 and the remaining 25,001 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC 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.

SEC source: 0001654954-19-010062 · section16.xml · nonDerivative · entry 1

Wang Jian · CIK 0001721620 · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Shengxin (Shanghai) Management Consulting Limited Partnership

Disclosed balance after: 327,067

F1 · price: In connection with a public offering of Class A Common Stock by the Issuer, Shengxin (Shanghai) Management Consulting Limited Partnership ("SMC") and certain other stockholders entered into an Equity Purchase Agreement dated August 4, 2019 pursuant to which SMC 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 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. The transaction being reported relates to SMC's sale under the Equity Purchase Agreement. Mr. Wang, the reporting person, is a general partner of SMC and therefore may be deemed to beneficially own the securities held by SMC.

SEC source: 0001654954-19-010061 · section16.xml · nonDerivative · entry 1

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,924

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.

SEC source: 0001654954-19-010060 · section16.xml · nonDerivative · entry 1

Hu Chenming · CIK 0001316320 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,768

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.

SEC source: 0001654954-19-010063 · section16.xml · nonDerivative · entry 1

Wang David H · CIK 0001721580 · Director · See remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 168,006

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.

SEC source: 0001654954-19-010059 · section16.xml · nonDerivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,030

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.

SEC source: 0001654954-19-010058 · section16.xml · nonDerivative · entry 1

Chen Fuping · CIK 0001729184 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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.

F2 · balance_after: The reporting person did not own any outstanding shares of Class A Common Stock as of the transaction date. In order to meet his obligations under the Equity Purchase Agreement, the reporting person expects to exercise, effective as of the date on which he is obligated to sell 17,946 shares of Class A Common Stock to the Issuer under the Equity Purchase Agreement, outstanding options to acquire such 17,946 shares. The reporting person expects to file a subsequent Form 4 in connection with such option exercise.

SEC source: 0001654954-19-009872 · section16.xml · derivative · entry 5

Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,334

Underlying: Class A Common Stock · 30,000 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 August 20, 2019, the reporting person exercised previously issued stock options to purchase 30,000 shares of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: The option is fully vested and exercisable.

SEC source: 0001654954-19-009872 · section16.xml · nonDerivative · entry 1

Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 196,667

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 August 20, 2019, the reporting person exercised previously issued stock options to purchase 30,000 shares of Class A Common Stock of the Issuer.

SEC 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.

SEC source: 0001654954-19-008925 · section16.xml · derivative · entry 1

Chen Fuping · CIK 0001729184 · 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.

SEC 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.

SEC 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.

SEC source: 0001654954-19-004825 · section16.xml · derivative · entry 1

Wang Jian · CIK 0001721620 · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Class A Common Stock · 30,000 shares

Expires 2029-04-22

F1 · derivative.exercise_date: The option will vest and become exercisable as to 7,500 shares on April 23, 2020 and the remaining 22,500 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC source: 0001654954-19-004824 · section16.xml · derivative · entry 1

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Class A Common Stock · 20,000 shares

Expires 2029-04-22

F1 · derivative.exercise_date: The option will vest and become exercisable as to 5,000 shares on April 23, 2020 and the remaining 15,000 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC source: 0001654954-19-004823 · section16.xml · derivative · entry 1

Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Class A Common Stock · 50,000 shares

Expires 2029-04-22

F1 · derivative.exercise_date: The option will vest and become exercisable as to 12,500 shares on April 23, 2020 and the remaining 37,500 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC source: 0001654954-19-004826 · section16.xml · derivative · entry 1

Dun Haiping · CIK 0001721581 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Class A Common Stock · 20,000 shares

Expires 2029-04-22

F1 · derivative.exercise_date: The option will vest and become exercisable as to 5,000 shares on April 23, 2020 and the remaining 15,000 shares will vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC source: 0001654954-18-009766 · section16.xml · derivative · entry 2

Hu Chenming · CIK 0001316320 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,334

Underlying: Class A Common Stock · 30,000 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.

F1 · kind: On August 30, 2018, the reporting person exercised previously issued stock options to purchase 30,000 shares of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: The option vested and became exercisable as to 20,833 shares on May 1, 2017 and the remaining 62,501 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC source: 0001654954-18-009766 · section16.xml · nonDerivative · entry 1

Hu Chenming · CIK 0001316320 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: On August 30, 2018, the reporting person exercised previously issued stock options to purchase 30,000 shares of Class A Common Stock of the Issuer.

SEC source: 0001654954-18-011484 · section16.xml · derivative · entry 1

Wang Jian · CIK 0001721620 · 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.

SEC 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.

SEC source: 0001654954-18-007317 · section16.xml · derivative · entry 5

Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sophia Wang, daughter of David H. Wang

Disclosed balance after: 0

Underlying: Class A Common Stock · 15,279 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.

F1 · kind: Sophia Wang, who is the daughter of the reporting person and whose shares are deemed indirectly beneficially owned by the reporting person, previously held options to acquire up to 18,334 shares of Class A Common Stock of the Issuer. On June 29, 2018, Ms. Wang exercised options to purchase 15,279 shares of Class A Common Stock of the Issuer. The options to purchase the remaining 3,055 shares of Class A Common Stock have terminated.

F2 · derivative.exercise_date: As of the transaction date, 15,279 shares had vested.

SEC source: 0001654954-18-007317 · section16.xml · nonDerivative · entry 1

Wang David H · CIK 0001721580 · Director · See Remarks · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sophia Wang, daughter of David H. Wang

Disclosed balance after: 15,279

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: Sophia Wang, who is the daughter of the reporting person and whose shares are deemed indirectly beneficially owned by the reporting person, previously held options to acquire up to 18,334 shares of Class A Common Stock of the Issuer. On June 29, 2018, Ms. Wang exercised options to purchase 15,279 shares of Class A Common Stock of the Issuer. The options to purchase the remaining 3,055 shares of Class A Common Stock have terminated.

SEC source: 0001654954-18-007186 · section16.xml · derivative · entry 2

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 16,667 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.

F1 · kind: On June 28, 2018, the reporting person exercised previously issued stock options to purchase 16,667 shares of Class A Common Stock of the Issuer.

F2 · derivative.exercise_date: The option was fully vested and exercisable.

SEC source: 0001654954-18-007186 · section16.xml · nonDerivative · entry 1

Liu Tracy · CIK 0001721299 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,067

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 28, 2018, the reporting person exercised previously issued stock options to purchase 16,667 shares of Class A Common Stock of the Issuer.

SEC 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.

SEC 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.

SEC source: 0001654954-18-008249 · section16.xml · derivative · entry 2

Wang Jian · CIK 0001721620 · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Shengxin (Shanghai) Management Consulting Limited Partnership

Disclosed balance after: 0

Underlying: Class A Common Stock · 397,502 shares

Expires 2023-05-17

F1 · kind: On April 2, 2018, Shengxin (Shanghai) Management Consulting Limited Partnership ("SMC") exercised the warrant. Mr. Wang, the reporting person, is a general partner of SMC and therefore may be deemed to beneficially own the securities held by SMC.

F2 · derivative.exercise_date: The warrant became exercisable immediately after the closing of the Issuer's initial public offering, which occurred on November 7, 2017.

SEC source: 0001654954-18-008249 · section16.xml · nonDerivative · entry 1

Wang Jian · CIK 0001721620 · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Shengxin (Shanghai) Management Consulting Limited Partnership

Disclosed balance after: 481,888

F1 · kind: On April 2, 2018, Shengxin (Shanghai) Management Consulting Limited Partnership ("SMC") exercised the warrant. Mr. Wang, the reporting person, is a general partner of SMC and therefore may be deemed to beneficially own the securities held by SMC.

SEC source: 0001654954-18-005607 · section16.xml · derivative · entry 4

Chen Fufa · CIK 0001721376 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,419

Underlying: Class A Common Stock · 22,915 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.

F2 · kind: On January 31, 2018, the reporting person exercised previously issued stock options to purchase 22,915 shares of Class A Common Stock of the Issuer.

F4 · derivative.exercise_date: The option vested and became exercisable as to 8,333 shares on May 1, 2016 and the remaining 25,001 shares vest and become exercisable in equal monthly installments over the following 36 months, subject to continued service through each vesting date.

SEC source: 0001654954-18-005607 · section16.xml · derivative · entry 3

Chen Fufa · CIK 0001721376 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 33,334 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 January 31, 2018, the reporting person exercised previously issued stock options to purchase 33,334 shares of Class A Common Stock of the Issuer.

F3 · derivative.exercise_date: The option was fully vested and exercisable.

SEC source: 0001654954-18-005607 · section16.xml · nonDerivative · entry 2

Chen Fufa · CIK 0001721376 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,583

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: On January 31, 2018, the reporting person exercised previously issued stock options to purchase 22,915 shares of Class A Common Stock of the Issuer.

SEC source: 0001654954-18-005607 · section16.xml · nonDerivative · entry 1

Chen Fufa · CIK 0001721376 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 106,668

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 January 31, 2018, the reporting person exercised previously issued stock options to purchase 33,334 shares of Class A Common Stock of the Issuer.