Insider · CIK 0001316320

Hu Chenming

Reports to the SEC for 7 companies · SANTA CLARA, CA

sec.gov

Transactions

Companies

Filings

CIK

0001316320

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-09-08	AMBAAMBARELLA INCA Award	Director	AAward	+3,151 sh	—	—	32,667
2025-09-02	AMBAAMBARELLA INCA Award	Director	AAward	+2,498 sh	—	—	29,516
2025-03-17	ACMRACM Research, Inc.S Sale	Director	SSale	−163K sh	$30.00	−$4.9M	100,002
2024-08-29	AMBAAMBARELLA INCA Award	Director	AAward	+3,374 sh	—	—	27,018
2024-08-12	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+20K sh	—	—	20,000
2023-08-31	AMBAAMBARELLA INCA Award	Director	AAward	+3,218 sh	—	—	23,644
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	−24K sh	—	—	24,000
2023-06-15	AMBAAMBARELLA INCA Award	Director	AAward	+1,559 sh	—	—	20,426
2023-03-15	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−779 sh	—	—	1,559
2023-03-15	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+779 sh	—	—	18,867
2022-12-16	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−779 sh	—	—	2,338
2022-12-16	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+779 sh	—	—	18,088
2022-09-16	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−377 sh	—	—	0
2022-09-16	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+377 sh	—	—	17,309
2022-09-01	AMBAAMBARELLA INC · Restricted Stock UnitsA Award	Director	AAward	+3,117 sh	—	—	3,117
2022-06-30	ACMRACM Research, Inc. · Stock OptionA Award	Director	AAward	+24K sh	—	—	24,000
2022-06-16	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−377 sh	—	—	377
2022-06-16	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+377 sh	—	—	16,932
2022-03-16	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−377 sh	—	—	754
2022-03-16	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+377 sh	—	—	16,555
2022-02-25	AMBAAMBARELLA INC · Non-Qualified Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−5,555 sh	—	—	0
2022-02-25	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+5,555 sh	$38.92	+$216K	16,178
2021-12-16	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−377 sh	—	—	1,131
2021-12-16	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+377 sh	—	—	10,623
2021-09-22	AMBAAMBARELLA INCS Sale	Director	SSale	−3,666 sh	$160.00	−$587K	10,246
2021-09-16	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−959 sh	—	—	0
2021-09-16	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+959 sh	—	—	13,912
2021-09-09	AMBAAMBARELLA INCS Sale	Director	SSale	−4,000 sh	$140.00	−$560K	12,953
2021-09-02	AMBAAMBARELLA INC · Restricted Stock UnitsA Award	Director	AAward	+1,508 sh	—	—	1,508
2021-09-01	AMBAAMBARELLA INCS Sale	Director	SSale	−4,000 sh	$120.00	−$480K	16,953
2021-06-16	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−958 sh	—	—	959
2021-06-16	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+958 sh	—	—	20,953
2021-05-04	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	+23.3K sh	—	—	0
2021-05-04	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+23.3K sh	$3.00	+$70K	87,770
2021-04-20	INPHI CorpD Disposition to Issuer	Director	DDisposition to Issuer	−65.5K sh	—	—	1,478
2021-04-20	INPHI CorpD Disposition to Issuer	Director	DDisposition to Issuer	−1,478 sh	—	—	0
2021-03-30	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	+10K sh	—	—	23,334
2021-03-30	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+10K sh	$3.00	+$30K	64,436
2021-03-16	AMBAAMBARELLA INC · Restricted Stock UnitsM Exercise/Conversion	Director	MExercise/Conversion	−958 sh	—	—	1,917
2021-03-16	AMBAAMBARELLA INCM Exercise/Conversion	Director	MExercise/Conversion	+958 sh	—	—	19,995
2021-03-08	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	+12.3K sh	—	—	0
2021-03-08	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+12.3K sh	$7.50	+$92.5K	54,436
2021-03-04	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	+11K sh	—	—	12,334
2021-03-04	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+11K sh	$7.50	+$82.5K	42,102
2021-03-02	ACMRACM Research, Inc. · Stock OptionM Exercise/Conversion	Director	MExercise/Conversion	+10K sh	—	—	23,334
2021-03-02	ACMRACM Research, Inc.M Exercise/Conversion	Director	MExercise/Conversion	+10K sh	$7.50	+$75K	31,102
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	−10K sh	$120.00	−$1.2M	21,102

Recent filings

Accepted (ET)
Sep 104
Hu Chenming0001280263-26-000065
SEC(opens sec.gov)
Sep 44
Hu Chenming0001280263-25-000040
SEC(opens sec.gov)
Mar 194
Hu Chenming0001140361-25-009529
SEC(opens sec.gov)
Aug 304
Hu Chenming0001280263-24-000036
SEC(opens sec.gov)
Aug 204
Hu Chenming0001140361-24-037994
SEC(opens sec.gov)
Sep 14
Hu Chenming0001280263-23-000051
SEC(opens sec.gov)
Aug 214/A
Hu Chenming0001140361-23-040765
SEC(opens sec.gov)
Aug 144
Hu Chenming0001140361-23-039740
SEC(opens sec.gov)
Jun 204
Hu Chenming0001280263-23-000036
SEC(opens sec.gov)
Mar 174
Hu Chenming0001280263-23-000012
SEC(opens sec.gov)
Dec 204
Hu Chenming0001280263-22-000092
SEC(opens sec.gov)
Sep 204
Hu Chenming0001280263-22-000082
SEC(opens sec.gov)
Sep 24
Hu Chenming0001280263-22-000070
SEC(opens sec.gov)
Jul 54
Hu Chenming0001140361-22-025087
SEC(opens sec.gov)
Jun 174
Hu Chenming0001280263-22-000064
SEC(opens sec.gov)
Mar 184
Hu Chenming0001280263-22-000033
SEC(opens sec.gov)

Companies

Address

3001 TASMAN DRIVE

SANTA CLARA, CA, 95054