A business in context

AMBQ research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Filing timeline

SEC submissions · retrieved 2026-10-20 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

2026-10-16
4 · Ownership change
Report date 2026-10-14 · 0002078559-26-000016
2026-10-16
4 · Ownership change
Report date 2026-10-15 · 0002078454-26-000020
2026-10-16
4 · Ownership change
Report date 2026-10-15 · 0002078339-26-000020
2026-10-06
4 · Ownership change
Report date 2026-10-02 · 0002078559-26-000014
2026-10-06
4 · Ownership change
Report date 2026-10-02 · 0002078454-26-000018
2026-10-06
4 · Ownership change
Report date 2026-10-02 · 0002078339-26-000018
2026-10-06
4 · Ownership change
Report date 2026-10-02 · 0001312143-26-000013
2026-09-17
4 · Ownership change
Report date 2026-09-15 · 0002078339-26-000014
2026-08-11
10-Q · Quarterly report
Report date 2026-06-30 · 0001193125-26-344145
2026-08-11
8-K · Current report
Report date 2026-08-11 · 0001193125-26-343443 · Items 2.02,9.01
2026-07-30
8-K · Current report
Report date 2026-07-30 · 0001193125-26-325025 · Items 7.01,9.01
2026-06-08
8-K · Current report
Report date 2026-06-08 · 0001193125-26-261248 · Items 5.07
2026-05-12
10-Q · Quarterly report
Report date 2026-03-31 · 0001193125-26-219341
2026-05-12
8-K · Current report
Report date 2026-05-12 · 0001193125-26-218189 · Items 2.02,9.01
2026-04-22
DEF 14A · Proxy statement
Report date 2026-04-22 · 0001193125-26-170349
2026-03-05
10-K · Annual report
Report date 2025-12-31 · 0001193125-26-094004
2026-03-05
8-K · Current report
Report date 2026-03-05 · 0001193125-26-092653 · Items 2.02,9.01
2026-01-21
8-K · Current report
Report date 2026-01-21 · 0001193125-26-017259 · Items 2.02
2026-01-08
8-K · Current report
Report date 2026-01-05 · 0001193125-26-007673 · Items 5.02
2025-11-06
10-Q · Quarterly report
Report date 2025-09-30 · 0001193125-25-269678
2025-11-06
8-K · Current report
Report date 2025-11-06 · 0001193125-25-269612 · Items 2.02,9.01
2025-10-03
8-K · Current report
Report date 2025-09-29 · 0001193125-25-230103 · Items 5.02
2025-09-04
10-Q · Quarterly report
Report date 2025-06-30 · 0000950170-25-113026
2025-09-04
8-K · Current report
Report date 2025-09-04 · 0000950170-25-113025 · Items 2.02,9.01
2025-07-31
8-K · Current report
Report date 2025-07-31 · 0001193125-25-170496 · Items 5.03,9.01

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-15 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals

P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

66 matching transaction rows. Showing 1 to 50.

Transaction / filed	Reporting owner	Type	Security	Shares	Reported price
2026-09-15 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	100.0	61.0
2026-09-15 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	9615.0	60.55
2026-09-15 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	3785.0	59.56
2026-09-15 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	13500.0	8.12
2026-09-15 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	13500.0	0.0
2026-09-15 2026-09-17	Hanson Scott McLean 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	7000.0	8.12
2026-09-15 2026-09-17	Hanson Scott McLean 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	100.0	61.0
2026-09-15 2026-09-17	Hanson Scott McLean 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	4947.0	60.56
2026-09-15 2026-09-17	Hanson Scott McLean 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	1953.0	59.53
2026-09-15 2026-09-17	Hanson Scott McLean 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	7000.0	0.0
2026-09-14 2026-09-15	Chen Sean Chihhsiang 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	11000.0	60.24
2026-09-14 2026-09-15	Chen Sean Chihhsiang 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	1400.0	60.83
2026-09-14 2026-09-15	Chen Sean Chihhsiang 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	2600.0	59.36
2026-09-14 2026-09-15	Chen Sean Chihhsiang 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	15000.0	8.12
2026-09-14 2026-09-15	Chen Sean Chihhsiang 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	15000.0	0.0
2026-09-11 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	7917.0	63.86
2026-09-11 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	42083.0	63.27
2026-09-11 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	50000.0	12.6
2026-09-11 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	30993.0	0.0
2026-09-11 2026-09-15	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	19007.0	0.0
2026-09-11 2026-09-15	ZHANG KER	S · Sale Disposed	Common Stock	9100.0	63.39
2026-09-11 2026-09-15	ZHANG KER	S · Sale Disposed	Common Stock	900.0	63.95
2026-09-04 2026-09-09	Chen Sean Chihhsiang 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	15000.0	8.12
2026-09-04 2026-09-09	Chen Sean Chihhsiang 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	12874.0	57.09
2026-09-04 2026-09-09	Chen Sean Chihhsiang 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	2126.0	57.68
2026-09-04 2026-09-09	Chen Sean Chihhsiang 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	15000.0	0.0
2026-09-04 2026-09-09	ZHANG KER	M · Exercise / conversion Acquired	Common Stock	1785.0	5.88
2026-09-04 2026-09-09	ZHANG KER	S · Sale Disposed	Common Stock	185.0	56.92
2026-09-04 2026-09-09	ZHANG KER	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	1785.0	0.0
2026-09-02 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	1452.0	56.15
2026-09-02 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	11027.0	12.6
2026-09-02 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	9575.0	56.77
2026-09-02 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	11027.0	0.0
2026-09-01 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	48973.0	12.6
2026-09-01 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	48973.0	56.39
2026-09-01 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	48973.0	0.0
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	15600.0	56.81
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	44271.0	12.6
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	5600.0	58.46
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	13800.0	57.7
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Acquired	Common Stock	13500.0	8.12
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	5899.0	56.87
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	5501.0	57.75
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	S · Sale Disposed	Common Stock	2100.0	58.52
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	35000.0	0.0
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	13500.0	0.0
2026-08-31 2026-09-02	Esaka Fumihide 10b5-1 checkbox reported	M · Exercise / conversion Disposed	Stock Option (Right to Buy) Derivative security	9271.0	0.0
2026-08-27 2026-08-28	Hanson Scott McLean	S · Sale Disposed	Common Stock	22590.0	59.69
2026-08-27 2026-08-28	Hanson Scott McLean	S · Sale Disposed	Common Stock	4910.0	60.32
2026-08-27 2026-08-28	Hanson Scott McLean	M · Exercise / conversion Acquired	Common Stock	27500.0	8.12

Identity & relationships

Wikidata structured data · retrieved 2026-10-15 · 1663 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001500412Ambiq Micro, Inc.

No parent relationship is available in this import; this is not proof of independence.

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-10-15 · 1199 checked identities; 0 unavailable records

Search names and former names

Revenue in constant purchasing power

USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year ended	Reported USD revenue	CPI-adjusted USD revenue
2024-12-31	$76.07M	$81.70M

Bureau of Labor Statistics · retrieved 2026-10-20 · 9 selected series; gaps remain missing

Explore the CPI history ↗