Insider · CIK 0001779777

Feng Lisa

Reports to the SEC for 1 company · FREMONT, CA

sec.gov

Transactions

Companies

Filings

CIK

0001779777

Forms 4 and 5

Insider transactions

49 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-03-06	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+15K sh	$4.55	+$68.3K	65,001
2026-03-06	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−15K sh	—	—	0
2026-03-06	ACMRACM Research, Inc.S Sale	See remarks	SSale	−200 sh	$46.58	−$9,316	50,001
2026-03-06	ACMRACM Research, Inc.S Sale	See remarks	SSale	−14.8K sh	$46.07	−$682K	50,201
2026-03-05	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−15K sh	—	—	0
2026-03-05	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+15K sh	$4.55	+$68.3K	65,001
2026-03-05	ACMRACM Research, Inc.S Sale	See remarks	SSale	−6,950 sh	$50.24	−$349K	50,001
2026-03-05	ACMRACM Research, Inc.S Sale	See remarks	SSale	−8,050 sh	$49.81	−$401K	56,951
2025-11-13	ACMRACM Research, Inc.S Sale	See remarks	SSale	−15K sh	$33.77	−$507K	50,001
2025-11-13	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−15K sh	—	—	0
2025-11-13	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+15K sh	$5.60	+$84K	65,001
2025-11-12	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−15K sh	—	—	15,000
2025-11-12	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+15K sh	$5.60	+$84K	65,001
2025-11-12	ACMRACM Research, Inc.S Sale	See remarks	SSale	−15K sh	$32.76	−$491K	50,001
2025-07-07	ACMRACM Research, Inc.S Sale	See remarks	SSale	−15K sh	$28.00	−$420K	50,001
2025-07-07	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−15K sh	—	—	30,000
2025-07-07	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+15K sh	$5.60	+$84K	65,001
2025-06-24	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−15K sh	—	—	45,000
2025-06-24	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+15K sh	$5.60	+$84K	65,001
2025-06-24	ACMRACM Research, Inc.S Sale	See remarks	SSale	−15K sh	$26.00	−$390K	50,001
2024-02-28	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−7,500 sh	—	—	60,000
2024-02-28	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+7,500 sh	$5.60	+$42K	57,501
2024-02-28	ACMRACM Research, Inc.S Sale	See remarks	SSale	−7,500 sh	$25.20	−$189K	50,001
2023-12-26	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+7,500 sh	$5.60	+$42K	57,501
2023-12-26	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−7,500 sh	—	—	67,500
2023-12-26	ACMRACM Research, Inc.S Sale	See remarks	SSale	−7,500 sh	$20.00	−$150K	50,001
2023-08-10	ACMRACM Research, Inc. · Stock OptionA Award	See remarks	AAward	−100K sh	—	—	100,000
2023-08-10	ACMRACM Research, Inc. · Stock OptionA Award	See remarks	AAward	−100K sh	—	—	100,000
2023-07-03	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+22.5K sh	$1.77	+$39.8K	72,501
2023-07-03	ACMRACM Research, Inc.S Sale	See remarks	SSale	−22.5K sh	$15.00	−$338K	50,001
2023-07-03	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−22.5K sh	—	—	0
2023-03-09	ACMRACM Research, Inc.S Sale	See remarks	SSale	−9,144 sh	$12.44	−$114K	51,111
2023-03-09	ACMRACM Research, Inc.S Sale	See remarks	SSale	−2,700 sh	$12.21	−$33K	69,801
2023-03-09	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−22.5K sh	—	—	0
2023-03-09	ACMRACM Research, Inc.S Sale	See remarks	SSale	−1,110 sh	$12.55	−$13.9K	50,001
2023-03-09	ACMRACM Research, Inc.S Sale	See remarks	SSale	−9,546 sh	$12.33	−$118K	60,255
2023-03-09	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+22.5K sh	$1.77	+$39.8K	72,501
2022-12-31	ACMRACM Research, Inc. · Stock OptionA Award	See remarks	AAward	+22.5K sh	—	—	22,500
2021-11-03	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−2,437 sh	—	—	0
2021-11-03	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+2,437 sh	$5.60	+$13.6K	16,667
2021-02-26	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−3,470 sh	—	—	2,437
2021-02-26	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+3,470 sh	$5.60	+$19.4K	14,230
2020-09-16	ACMRACM Research, Inc.S Sale	See remarks	SSale	−15K sh	$72.30	−$1.08M	10,760
2020-09-16	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−15K sh	—	—	15,000
2020-09-16	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+15K sh	$5.31	+$79.7K	25,760
2020-04-28	ACMRACM Research, Inc. · Stock OptionA Award	See remarks	AAward	+10K sh	—	—	10,000
2020-03-18	ACMRACM Research, Inc.M Exercise/Conversion	See remarks	MExercise/Conversion	+3,817 sh	$5.60	+$21.4K	10,760
2020-03-18	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	See remarks	MExercise/Conversion	−3,817 sh	—	—	5,907
2019-11-04	ACMRACM Research, Inc. · Stock OptionA Award	See remarks	AAward	+10K sh	—	—	10,000

Recent filings

Accepted (ET)
Mar 94
Feng Lisa0001140361-26-008479
SEC(opens sec.gov)
Nov 144
Feng Lisa0001140361-25-042345
SEC(opens sec.gov)
Jul 94
Feng Lisa0001140361-25-025348
SEC(opens sec.gov)
Jun 264
Feng Lisa0001140361-25-023830
SEC(opens sec.gov)

Companies

ACM Research, Inc.See remarksACMR

Address

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

FREMONT, CA, 94539