Ambiq Micro, Inc.

Insider sale · SEC EDGAR

This page reproduces a recorded source event. It is not a live quote, forecast, recommendation or legal conclusion.

Event type

insider.sell

Occurred

2026-09-04

Reported

2026-09-09

Disclosure lag

5 days

Context

links are based on the recorded entity type

Field	Recorded value
Entity	Ambiq Micro, Inc.
Source	SEC EDGAR ↗
News section	companies
Source identifier	0002078559-26-000008
Source-linked related entities	chen-sean-chihhsiang-2078559 · person
Event ID	#1115883

Related recorded events

same canonical or source-linked entity relations

Reported	Type	Event	Source
2026-09-17	Derivative exercise	Event #1140475	SEC EDGAR
2026-09-17	Insider sale	Event #1140474	SEC EDGAR
2026-09-17	Insider sale	Event #1140473	SEC EDGAR
2026-09-17	Insider sale	Event #1140472	SEC EDGAR
2026-09-17	Derivative exercise	Event #1140471	SEC EDGAR
2026-09-09	Derivative exercise	Event #1115884	SEC EDGAR
2026-09-09	Insider sale	Event #1115882	SEC EDGAR
2026-09-09	Derivative exercise	Event #1115881	SEC EDGAR

Recorded payload

JSON payload as stored after parsing

{
  "accession": "0002078559-26-000008",
  "acquired_disposed": "D",
  "code": "S",
  "direct_or_indirect": "D",
  "form": "4",
  "is_derivative": false,
  "issuer_name": "Ambiq Micro, Inc.",
  "label": "Open market sale",
  "person_name": "Chen Sean Chihhsiang",
  "price": 57.6786,
  "role": "President and COO",
  "security": "Common Stock",
  "shares": 2126,
  "shares_owned_after": 120275,
  "source_path": "edgar/data/1500412/0002078559-26-000008.txt",
  "ticker": "AMBQ",
  "transaction_date": "2026-09-04",
  "value": 122624.7036
}

Evidence-based analysis

facts, provenance and explicit model coverage

Descriptive evidence from the stored source record; it is not advice, a forecast or a legal conclusion.

Dimension	Status / value	Method or boundary
What happened	not_covered	The source record has no short title or summary.
When	source_backed · reported 2026-09-09	Occurred 2026-09-04. Source-record timestamps; no timezone or event time is inferred.
Affected entities	resolved · Ambiq Micro, Inc. · 1 related	Canonical primary entity and stored related_entity_ids only.
Event classification	insider · insider.sell	canonical event type plus source-provided category; no sentiment or impact is inferred
Entity linking	resolved	Canonical entity resolved during ingestion
Deduplication	applied	unique source event key at ingestion
Source trust	high · terms allowed	Source registry metadata
Sentiment	not_covered	No sentiment model output is published for this record.
Market reaction	not_covered	Requires licensed quote, candle and volume observations for the affected instrument.
Historical analogs	not_covered	Requires an audited event-cluster corpus and matching methodology.
Impact mechanism	not_covered	No causal market-impact model is published for this record.
Related risks	not_covered	Risk implications require an audited instrument/entity exposure model.
Instrument linkage	not_covered	No instrument relation is inferred from an entity event; licensed instrument mapping is required.

Source: Open recorded SEC filing

Source: SEC EDGAR · as of 2026-09-09T00:00:00Z