Insider · CIK 0001721299

Liu Tracy

Reports to the SEC for 2 companies · FREMONT, CA

sec.gov

Transactions

Companies

Filings

CIK

0001721299

Forms 4 and 5

Insider transactions

47 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-12	ACMRACM Research, Inc. · Restricted Stock UnitsA Award	Director	AAward	+728 sh	—	—	728
2026-08-12	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+6,400 sh	—	—	6,400
2026-03-11	ACMRACM Research, Inc.S Sale	Director	SSale	−3,377 sh	$48.25	−$163K	110,772
2026-03-11	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+15K sh	$1.00	+$15K	125,772
2026-03-11	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−15K sh	—	—	0
2026-03-11	ACMRACM Research, Inc.S Sale	Director	SSale	−11.6K sh	$47.81	−$556K	114,149
2026-03-10	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+45K sh	$1.00	+$45K	155,772
2026-03-10	ACMRACM Research, Inc.S Sale	Director	SSale	−12.8K sh	$48.19	−$616K	110,772
2026-03-10	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−45K sh	—	—	15,000
2026-03-10	ACMRACM Research, Inc.S Sale	Director	SSale	−32.2K sh	$47.06	−$1.52M	123,556
2025-09-17	ACMRACM Research, Inc.S Sale	Director	SSale	−15K sh	$33.00	−$495K	110,772
2025-09-17	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+15K sh	$1.00	+$15K	125,772
2025-09-17	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−15K sh	—	—	60,000
2025-08-12	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+20K sh	—	—	20,000
2025-07-15	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−15K sh	—	—	75,000
2025-07-15	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+15K sh	$1.00	+$15K	125,772
2025-07-15	ACMRACM Research, Inc.S Sale	Director	SSale	−15K sh	$30.00	−$450K	110,772
2024-08-12	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+20K sh	—	—	20,000
2024-02-28	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+12.5K sh	$5.60	+$70K	123,272
2024-02-28	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−12.5K sh	—	—	19,500
2024-02-28	ACMRACM Research, Inc.S Sale	Director	SSale	−12.5K sh	$25.20	−$315K	110,772
2023-12-26	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−10K sh	—	—	32,000
2023-12-26	ACMRACM Research, Inc.S Sale	Director	SSale	−10K sh	$20.00	−$200K	110,772
2023-12-26	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+10K sh	$5.60	+$56K	120,772
2023-11-20	ACMRACM Research, Inc.S Sale	Director	SSale	−15K sh	$17.91	−$269K	36,924
2023-11-20	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−15K sh	—	—	0
2023-11-20	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+15K sh	$7.36	+$110K	51,924
2023-08-10	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	−24K sh	—	—	24,000
2023-08-10	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	−30K sh	—	—	30,000
2023-08-10	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	−24K sh	—	—	24,000
2023-08-10	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	−30K sh	—	—	30,000
2022-06-30	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+24K sh	—	—	24,000
2021-02-22	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+5,000 sh	—	—	5,000
2021-02-22	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+5,000 sh	—	—	5,000
2021-02-12	ACMRACM Research, Inc.S Sale	Director	SSale	−2,000 sh	$120.00	−$240K	36,924
2021-02-10	ACMRACM Research, Inc.S Sale	Director	SSale	−1,600 sh	$110.00	−$176K	38,924
2021-02-09	ACMRACM Research, Inc.S Sale	Director	SSale	−400 sh	$110.00	−$44K	40,524
2021-01-06	ACMRACM Research, Inc.S Sale	Director	SSale	−2,000 sh	$100.00	−$200K	40,924
2020-09-10	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+6,000 sh	$16.81	+$101K	42,924
2020-09-10	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−6,000 sh	—	—	14,000
2020-03-20	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+5,000 sh	—	—	5,000
2020-03-18	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+20K sh	$3.00	+$60K	36,924
2020-03-18	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−20K sh	—	—	30,000
2019-08-23	ACMRACM Research, Inc.D Disposition to Issuer	Director	DDisposition to Issuer	−2,143 sh	$13.20	−$28.3K	16,924
2019-04-23	ACMRACM Research, Inc. · Stock OptionsA Award	Director	AAward	+20K sh	—	—	20,000
2018-06-28	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	−16.7K sh	—	—	0
2018-06-28	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+16.7K sh	$3.00	+$50K	19,067

Recent filings

Accepted (ET)
Aug 264
Liu Tracy0001140361-26-034527
SEC(opens sec.gov)
Mar 124
Liu Tracy0001140361-26-009239
SEC(opens sec.gov)
Sep 194
Liu Tracy0001140361-25-035582
SEC(opens sec.gov)
Aug 144
Liu Tracy0001140361-25-031256
SEC(opens sec.gov)
Jul 174
Liu Tracy0001140361-25-026241
SEC(opens sec.gov)
Aug 204
Liu Tracy0001140361-24-037996
SEC(opens sec.gov)
Mar 14
Liu Tracy0001140361-24-010869
SEC(opens sec.gov)

Companies

Address

C/O ACM RESEARCH, INC. 42307 OSGOOD ROAD, SUITE I

FREMONT, CA, 94539