SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

AMBQ

Ambiq Micro, Inc.
NYSEInformation Technology

Latest close: 49.88 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Oct 15, 2026Reported sale · Form 4Scott McLean Hanson, Chief Technology Officer · $29.4KOpen the filing ↗
  2. Oct 15, 2026Reported sale · Form 4Scott McLean Hanson, Chief Technology Officer · $45.1KOpen the filing ↗
  3. Oct 15, 2026Reported sale · Form 4Scott McLean Hanson, Chief Technology Officer · $189.1KOpen the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record1269 flagged findings
Reported transactions (Form 4)78since Jul 31, 2025 · and 27 other holdings
Corporate events (8-K)2since Oct 3, 2025

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

What the company does

Ambiq Micro, Inc. is an American semiconductor company specializing in low-power microcontrollers and systems-on-chip, including products for devices smartwatches, medical devices, and sensors. Founded in 2010 by University of Michigan researchers Scott Hanson, David Blaauw, and Dennis Sylvester, the company is headquartered in Austin, Texas. Its products employ Subthreshold Power Optimized Technology (SPOT) to reduce energy consumption and enable on-device edge AI. In 2025, Ambiq went public on the New York Stock Exchange.

Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-06-25share offering or dilution eventrecentOpen filing ↗
    “…time in the future of) any shares of our common stock (including, without limitation, shares of our common stock that may be deemed…”
    +1 more passage from the same document
    • “…subject to certain limited exceptions as described below, we will not, directly or indirectly, (A) offer for sale, sell, pledge,…”
  • 2026-06-25export control restrictionsrecentOpen filing ↗
    “…Such laws, rules, and regulations may delay the introduction of our infrastructure and services or impact our competitiveness…”
    +1 more passage from the same document
    • “…different countries and may change frequently over time. Such laws, rules, and regulations may delay the introduction of our…”
  • 2026-06-25capital return (buybacks/dividends)recentOpen filing ↗
    “…terms and conditions of restricted stock awards, including vesting and forfeiture terms. If a participant’s service relationship…”
    +1 more passage from the same document
    • “…effects of acquisitions or joint ventures; (vii) to assume that any business divested by us achieved performance objectives at…”
  • 2026-06-25Department of Justice inquiryrecentOpen filing ↗
    “…of new technology is complex and uncertain, and if we fail to secure these devices, we could face government enforcement actions,…”
  • 2026-06-25reverse splitrecentOpen filing ↗
    “…that may affect a customer’s ability to pay. Actual customer collections could differ from the Company’s estimates. For the years…”
    +1 more passage from the same document
    • “…that may affect a customer’s ability to pay. Actual customer collections could differ from the Company’s estimates. For the…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 126)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Insider transaction · 7 Form 4 filings newshow all 7hide
  • Notice of proposed sale · 5 Form 144 filingsshow all 5hide
  • Insider transaction · 4 Form 4 filingsshow all 4hide
  • Notice of proposed sale · 2 Form 144 filingsshow all 2hide
  • Insider transaction · 2 Form 4 filingsshow all 2hide
  • Notice of proposed sale · 2 Form 144 filingsshow all 2hide
  • Sep 2, 26Form 4 ↗Insider transaction
  • Notice of proposed sale · 2 Form 144 filingsshow all 2hide

126 filings on record, the oldest from Jun 21, 22.

Listing the 25 most recent filings of the 126 on record.

8-Ks, explained

Governance2
  • Jan 8, 26GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Oct 3, 25GovernanceA senior executive left or was appointed8-K 5.02 ↗

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • KPCB XVI Associates, LLC8.2%Sep 30, 25SCHEDULE 13G ↗6 co-filers on this document — the figure is the largest single stake, not their sum.
  • BlackRock, Inc.5.3%Jun 30, 26SCHEDULE 13G ↗
  • T. Rowe Price Investment Management, Inc.4.3%Jun 30, 26SCHEDULE 13G/A ↗1 earlier filing

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

Sale intention announced

On Oct 5, SEAN CHEN filed notice of intent to sell up to $3.6M. That is about 0.22% of shares outstanding. It is filed under a scheduled plan (10b5-1), arranged in advance.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

After the notice, they sold $1.3M across 9 trades, between Oct 5 and Oct 14, per their Form 4. That is 44% of the shares announced so far, and the window is still open.

View notice (Form 144) ↗+9 more recent notices · 9 with a later sale

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Oct 15, 26Sell$29KScott McLean HansonChief Technology Officer↗
  • Oct 15, 26Sell$45KScott McLean HansonChief Technology Officer↗
  • Oct 15, 26Sell$189KScott McLean HansonChief Technology Officer↗
  • Oct 15, 26Sell$93KScott McLean HansonChief Technology Officer↗
  • Oct 15, 26Sell$25KFumihide EsakaChief Executive Officer↗
  • Oct 15, 26Sell$25KFumihide EsakaChief Executive Officer↗
  • Oct 15, 26Sell$143KFumihide EsakaChief Executive Officer↗
  • Oct 15, 26Sell$62KFumihide EsakaChief Executive Officer↗
  • Oct 14, 26Sell$378KSean Chihhsiang ChenPresident and COO↗
  • Oct 14, 26Sell$65KSean Chihhsiang ChenPresident and COO↗
  • Oct 14, 26Sell$105KSean Chihhsiang ChenPresident and COO↗
  • Oct 14, 26Sell$214KSean Chihhsiang ChenPresident and COO↗

There are 23 more transactions in this stretch.

Stock compensation, tax and giftsshow the 5 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Oct 15, 26Compensation$57KScott McLean HansonChief Technology Officer↗
  • Oct 15, 26Compensation$41KFumihide EsakaChief Executive Officer↗
  • Oct 14, 26Compensation$122KSean Chihhsiang ChenPresident and COO↗
  • Sep 15, 26Compensation$110KFumihide EsakaChief Executive Officer↗
  • Sep 15, 26Compensation$57KScott McLean HansonChief Technology Officer↗

The full record holds 133 transactions and goes back to Jul 29, 25.

Its sector and its market

Ambiq Micro, Inc. among Information Technology companies

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
Series with incidents in the period; the chart shows what could be kept.
SEC records
126 documents on file, from Jun 21, 2022 to Oct 16, 2026.
Company description
Wikipedia, read on Sep 3, 2026.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Are the prices real time?

No. It is one close per session, from the provider and with the date shown on the profile; it does not update during the trading day.

Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

Why does a European company show no SEC records?

It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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Ambiq Micro, Inc. (AMBQ): stock price history, insider trades and SEC filings — HornScout