Insider · CIK 0002078559

Chen Sean Chihhsiang

Reports to the SEC for 1 company · AUSTIN, TX

sec.gov

Transactions

Companies

Filings

CIK

0002078559

Forms 4 and 5

Insider transactions

30 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-10-14	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−200 sh	$54.27	−$10.9K	106,268
2026-10-14	AMBQAmbiq Micro, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	President and COO	MExercise/Conversion	−15K sh	—	—	119,423
2026-10-14	AMBQAmbiq Micro, Inc.M Exercise/Conversion	President and COO	MExercise/Conversion	+15K sh	$8.12	+$122K	121,268
2026-10-14	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−7,539 sh	$50.13	−$378K	113,729
2026-10-14	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−1,261 sh	$51.53	−$65K	112,468
2026-10-14	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−2,000 sh	$52.47	−$105K	110,468
2026-10-14	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−4,000 sh	$53.44	−$214K	106,468
2026-10-05	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−1,797 sh	$67.29	−$121K	107,168
2026-10-05	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−800 sh	$68.08	−$54.5K	106,368
2026-10-05	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−100 sh	$69.51	−$6,951	106,268
2026-10-05	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−5,508 sh	$66.38	−$366K	108,965
2026-10-02	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−3,008 sh	$69.77	−$210K	114,775
2026-10-02	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−302 sh	$71.86	−$21.7K	114,473
2026-10-02	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−2,492 sh	$69.11	−$172K	117,783
2026-09-14	AMBQAmbiq Micro, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	President and COO	MExercise/Conversion	−15K sh	—	—	134,423
2026-09-14	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−2,600 sh	$59.36	−$154K	132,675
2026-09-14	AMBQAmbiq Micro, Inc.M Exercise/Conversion	President and COO	MExercise/Conversion	+15K sh	$8.12	+$122K	135,275
2026-09-14	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−11K sh	$60.24	−$663K	121,675
2026-09-14	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−1,400 sh	$60.83	−$85.2K	120,275
2026-09-04	AMBQAmbiq Micro, Inc.M Exercise/Conversion	President and COO	MExercise/Conversion	+15K sh	$8.12	+$122K	135,275
2026-09-04	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−2,126 sh	$57.68	−$123K	120,275
2026-09-04	AMBQAmbiq Micro, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	President and COO	MExercise/Conversion	−15K sh	—	—	149,423
2026-09-04	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−12.9K sh	$57.09	−$735K	122,401
2026-05-15	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−32.4K sh	$70.53	−$2.28M	143,609
2026-05-15	AMBQAmbiq Micro, Inc.S Sale	President and COO	SSale	−23.3K sh	$71.37	−$1.67M	120,275
2026-05-15	AMBQAmbiq Micro, Inc. · Stock Option (Right to Buy)M Exercise/Conversion	President and COO	MExercise/Conversion	−55.7K sh	—	—	1
2026-05-15	AMBQAmbiq Micro, Inc.M Exercise/Conversion	President and COO	MExercise/Conversion	+55.7K sh	$5.88	+$327K	175,960
2026-03-06	AMBQAmbiq Micro, Inc.A Award	President and COO	AAward	+64.2K sh	—	—	120,275
2026-03-06	AMBQAmbiq Micro, Inc.A Award	President and COO	AAward	+64.2K sh	—	—	120,275
2025-10-02	AMBQAmbiq Micro, Inc.A Award	President and COO	AAward	+56K sh	—	—	56,029

Recent filings

Accepted (ET)
Oct 16 16:514
Chen Sean Chihhsiang0002078559-26-000016
SEC(opens sec.gov)
Oct 64
Chen Sean Chihhsiang0002078559-26-000014
SEC(opens sec.gov)
Sep 154
Chen Sean Chihhsiang0002078559-26-000010
SEC(opens sec.gov)
Sep 94
Chen Sean Chihhsiang0002078559-26-000008
SEC(opens sec.gov)

Companies

Ambiq Micro, Inc.President and COOAMBQ

Address

C/O AMBIQ MICRO, INC. 6500 RIVER PLACE BLVD BUILDING 7 STE 200

AUSTIN, TX, 78730