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A

AMBQ

NYSE

Ambiq Micro, Inc.

Latest disclosureOctober 6, 2026
Insider score Why 0?
0/ 100
Qualifying buys · 30d
$0

0 purchases · 64 sales

Price by TradingViewDelayed quote from TradingView, for viewing only. It does not power Whale Atlas scores or alerts. If the quote does not load, open the TradingView link.

Insider transactions 127

Limited filing history
All127Buying0Selling64Other63
Filters

Last 30 daysNo qualifying insider buying. Sales: $9.9M by 5 insiders.

64 of 127 trades · July 31, 2025 – October 5, 2026Incomplete history: this shows the filings imported so far, not every filing ever made. Dates are trade dates. Filters affect this table only.

Showing the first 6 of 64 trades on this page.

Sale disclosed

Jeffrey G. Winzeler

Chief Financial Officer

Common Stock

Reported value
$161.92K
Reported price
$69.1083 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Jeffrey G. Winzeler

Chief Financial Officer

Common Stock

Reported value
$197.32K
Reported price
$69.7722 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Jeffrey G. Winzeler

Chief Financial Officer

Common Stock

Reported value
$20.41K
Reported price
$71.8592 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$491.57K
Reported price
$69.1083 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$598.99K
Reported price
$69.7722 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$61.94K
Reported price
$71.8592 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$257.64K
Reported price
$69.1083 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$313.97K
Reported price
$69.7722 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$32.48K
Reported price
$71.8592 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$172.22K
Reported price
$69.1083 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$209.87K
Reported price
$69.7722 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$21.7K
Reported price
$71.8592 / share
Traded October 2, 2026Filed October 6, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$365.63K
Reported price
$66.3808 / share
Traded October 5, 2026Filed October 6, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$120.91K
Reported price
$67.2861 / share
Traded October 5, 2026Filed October 6, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$54.46K
Reported price
$68.0757 / share
Traded October 5, 2026Filed October 6, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$6.95K
Reported price
$69.51 / share
Traded October 5, 2026Filed October 6, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$116.27K
Reported price
$59.5339 / share
Traded September 15, 2026Filed September 17, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$299.57K
Reported price
$60.5564 / share
Traded September 15, 2026Filed September 17, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$6.1K
Reported price
$61.00 / share
Traded September 15, 2026Filed September 17, 2026SEC filing
Sale disclosed

Ker Zhang

Director

Common Stock

Reported value
$576.81K
Reported price
$63.3856 / share
Traded September 11, 2026Filed September 15, 2026SEC filing
Sale disclosed

Ker Zhang

Director

Common Stock

Reported value
$57.55K
Reported price
$63.9467 / share
Traded September 11, 2026Filed September 15, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$154.35K
Reported price
$59.3637 / share
Traded September 14, 2026Filed September 15, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$662.62K
Reported price
$60.238 / share
Traded September 14, 2026Filed September 15, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$85.17K
Reported price
$60.8332 / share
Traded September 14, 2026Filed September 15, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$2.66M
Reported price
$63.2661 / share
Traded September 11, 2026Filed September 15, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$505.57K
Reported price
$63.8583 / share
Traded September 11, 2026Filed September 15, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$225.44K
Reported price
$59.5626 / share
Traded September 15, 2026Filed September 15, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$582.17K
Reported price
$60.5482 / share
Traded September 15, 2026Filed September 15, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$6.1K
Reported price
$61.00 / share
Traded September 15, 2026Filed September 15, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$734.93K
Reported price
$57.0866 / share
Traded September 4, 2026Filed September 9, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$122.62K
Reported price
$57.6786 / share
Traded September 4, 2026Filed September 9, 2026SEC filing
Sale disclosed

Ker Zhang

Director

Common Stock

Reported value
$10.53K
Reported price
$56.92 / share
Traded September 4, 2026Filed September 9, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$335.45K
Reported price
$56.866 / share
Traded August 31, 2026Filed September 2, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$317.71K
Reported price
$57.7547 / share
Traded August 31, 2026Filed September 2, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$122.89K
Reported price
$58.5186 / share
Traded August 31, 2026Filed September 2, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$886.22K
Reported price
$56.8089 / share
Traded August 31, 2026Filed September 2, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$796.28K
Reported price
$57.7012 / share
Traded August 31, 2026Filed September 2, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$327.36K
Reported price
$58.4569 / share
Traded August 31, 2026Filed September 2, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$2.76M
Reported price
$56.3889 / share
Traded September 1, 2026Filed September 2, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$81.53K
Reported price
$56.1529 / share
Traded September 2, 2026Filed September 2, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$543.57K
Reported price
$56.7701 / share
Traded September 2, 2026Filed September 2, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$1.64M
Reported price
$59.5807 / share
Traded August 26, 2026Filed August 28, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$1.35M
Reported price
$59.6916 / share
Traded August 27, 2026Filed August 28, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$296.18K
Reported price
$60.321 / share
Traded August 27, 2026Filed August 28, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$50.6K
Reported price
$63.2562 / share
Traded August 14, 2026Filed August 18, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$347.79K
Reported price
$64.4061 / share
Traded August 14, 2026Filed August 18, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$52.24K
Reported price
$65.3013 / share
Traded August 14, 2026Filed August 18, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$81.13K
Reported price
$63.2857 / share
Traded August 14, 2026Filed August 18, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$690.2K
Reported price
$64.3964 / share
Traded August 14, 2026Filed August 18, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$97.89K
Reported price
$65.2621 / share
Traded August 14, 2026Filed August 18, 2026SEC filing
Sale disclosed

Timothy Chen

Director

Common Stock

Reported value
$1.77M
Reported price
$78.85 / share
Traded May 27, 2026Filed May 29, 2026SEC filing
Sale disclosed

Timothy Chen

Director

Common Stock

Reported value
$1.93M
Reported price
$79.72 / share
Traded May 27, 2026Filed May 29, 2026SEC filing
Sale disclosed

Timothy Chen

Director

Common Stock

Reported value
$1.67M
Reported price
$80.61 / share
Traded May 27, 2026Filed May 29, 2026SEC filing
Sale disclosed

Timothy Chen

Director

Common Stock

Reported value
$266.24K
Reported price
$81.57 / share
Traded May 27, 2026Filed May 29, 2026SEC filing
Sale disclosed

Jeffrey G. Winzeler

Chief Financial Officer

Common Stock

Reported value
$1.81M
Reported price
$69.8981 / share
Traded May 14, 2026Filed May 18, 2026SEC filing
Sale disclosed

Jeffrey G. Winzeler

Chief Financial Officer

Common Stock

Reported value
$5.79K
Reported price
$70.65 / share
Traded May 14, 2026Filed May 18, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$267.63K
Reported price
$68.6234 / share
Traded May 14, 2026Filed May 18, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$424.52K
Reported price
$69.5936 / share
Traded May 14, 2026Filed May 18, 2026SEC filing
Sale disclosed

Scott McLean Hanson

Chief Technology Officer

Common Stock

Reported value
$14.1K
Reported price
$70.50 / share
Traded May 14, 2026Filed May 18, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$2.28M
Reported price
$70.5334 / share
Traded May 15, 2026Filed May 18, 2026SEC filing
Sale disclosed

Sean Chihhsiang Chen

President and COO

Common Stock

Reported value
$1.67M
Reported price
$71.3746 / share
Traded May 15, 2026Filed May 18, 2026SEC filing
Sale disclosed

Fumihide Esaka

Chief Executive Officer

Common Stock

Reported value
$4.2M
Reported price
$70.0187 / share
Traded May 14, 2026Filed May 18, 2026SEC filing
Sale disclosed

Michele Kim Connors

General Counsel

Common Stock

Reported value
$17.19K
Reported price
$26.0385 / share
Traded April 2, 2026Filed April 6, 2026SEC filing
Sale disclosed

Michele Kim Connors

General Counsel

Common Stock

Reported value
$4.02K
Reported price
$26.6509 / share
Traded April 2, 2026Filed April 6, 2026SEC filing
Reporting insiderSecurity / transactionAmount / priceValueTraded / disclosedSource
Chief Financial OfficerCommon StockSale3 trades5,455avg $69.60 / share$379.64KOct 2Filed Oct 6 · 4d later
3 filings
  • 2,343 @ $69.11 · $161.92KSEC filing
  • 2,828 @ $69.77 · $197.32KSEC filing
  • 284 @ $71.86 · $20.41KSEC filing
Chief Executive OfficerCommon StockSale3 trades16,560avg $69.60 / share$1.15MOct 2Filed Oct 6 · 4d later
3 filings
  • 7,113 @ $69.11 · $491.57KSEC filing
  • 8,585 @ $69.77 · $598.99KSEC filing
  • 862 @ $71.86 · $61.94KSEC filing
Chief Technology OfficerCommon StockSale3 trades8,680avg $69.60 / share$604.09KOct 2Filed Oct 6 · 4d later
3 filings
  • 3,728 @ $69.11 · $257.64KSEC filing
  • 4,500 @ $69.77 · $313.97KSEC filing
  • 452 @ $71.86 · $32.48KSEC filing
President and COOCommon StockSale10b5-13 trades5,802avg $69.60 / share$403.79KOct 2Filed Oct 6 · 4d later
3 filings
  • 2,492 @ $69.11 · $172.22KSEC filing
  • 3,008 @ $69.77 · $209.87KSEC filing
  • 302 @ $71.86 · $21.7KSEC filing
President and COOCommon StockSale10b5-14 trades8,205avg $66.78 / share$547.95KOct 5Filed Oct 6 · 1d later
4 filings
  • 5,508 @ $66.38 · $365.63KSEC filing
  • 1,797 @ $67.29 · $120.91KSEC filing
  • 800 @ $68.08 · $54.46KSEC filing
  • 100 @ $69.51 · $6.95KSEC filing
Chief Technology OfficerCommon StockSale10b5-13 trades7,000avg $60.28 / share$421.94KSep 15Filed Sep 17 · 2d later
3 filings
  • 1,953 @ $59.53 · $116.27KSEC filing
  • 4,947 @ $60.56 · $299.57KSEC filing
  • 100 @ $61.00 · $6.1KSEC filing
DirectorCommon StockSale2 trades10,000avg $63.44 / share$634.36KSep 11Filed Sep 15 · 4d later
2 filings
  • 9,100 @ $63.39 · $576.81KSEC filing
  • 900 @ $63.95 · $57.55KSEC filing
President and COOCommon StockSale10b5-13 trades15,000avg $60.14 / share$902.13KSep 14Filed Sep 15 · 1d later
3 filings
  • 2,600 @ $59.36 · $154.35KSEC filing
  • 11,000 @ $60.24 · $662.62KSEC filing
  • 1,400 @ $60.83 · $85.17KSEC filing
Chief Executive OfficerCommon StockSale10b5-12 trades50,000avg $63.36 / share$3.17MSep 11Filed Sep 15 · 4d later
2 filings
  • 42,083 @ $63.27 · $2.66MSEC filing
  • 7,917 @ $63.86 · $505.57KSEC filing
Chief Executive OfficerCommon StockSale10b5-13 trades13,500avg $60.28 / share$813.72KSep 15Filed Sep 15 · 0d later
3 filings
  • 3,785 @ $59.56 · $225.44KSEC filing
  • 9,615 @ $60.55 · $582.17KSEC filing
  • 100 @ $61.00 · $6.1KSEC filing
President and COOCommon StockSale10b5-12 trades15,000avg $57.17 / share$857.56KSep 4Filed Sep 9 · 5d later
2 filings
  • 12,874 @ $57.09 · $734.93KSEC filing
  • 2,126 @ $57.68 · $122.62KSEC filing
DirectorCommon StockSale185$56.92 / share$10.53KSep 4Filed Sep 9 · 5d laterSEC filing
Chief Executive OfficerCommon StockSale10b5-16 trades48,500avg $57.44 / share$2.79MAug 31Filed Sep 2 · 2d later
6 filings
  • 5,899 @ $56.87 · $335.45KSEC filing
  • 5,501 @ $57.75 · $317.71KSEC filing
  • 2,100 @ $58.52 · $122.89KSEC filing
  • 15,600 @ $56.81 · $886.22KSEC filing
  • 13,800 @ $57.70 · $796.28KSEC filing
  • 5,600 @ $58.46 · $327.36KSEC filing
Chief Executive OfficerCommon StockSale10b5-148,973$56.39 / share$2.76MSep 1Filed Sep 2 · 1d laterSEC filing
Chief Executive OfficerCommon StockSale10b5-12 trades11,027avg $56.69 / share$625.11KSep 2Filed Sep 2 · 0d later
2 filings
  • 1,452 @ $56.15 · $81.53KSEC filing
  • 9,575 @ $56.77 · $543.57KSEC filing
Chief Technology OfficerCommon StockSale27,500$59.58 / share$1.64MAug 26Filed Aug 28 · 2d laterSEC filing
Chief Technology OfficerCommon StockSale2 trades27,500avg $59.80 / share$1.64MAug 27Filed Aug 28 · 1d later
2 filings
  • 22,590 @ $59.69 · $1.35MSEC filing
  • 4,910 @ $60.32 · $296.18KSEC filing
Chief Technology OfficerCommon StockSale10b5-13 trades7,000avg $64.38 / share$450.64KAug 14Filed Aug 18 · 4d later
3 filings
  • 800 @ $63.26 · $50.6KSEC filing
  • 5,400 @ $64.41 · $347.79KSEC filing
  • 800 @ $65.30 · $52.24KSEC filing
Chief Executive OfficerCommon StockSale10b5-13 trades13,500avg $64.39 / share$869.23KAug 14Filed Aug 18 · 4d later
3 filings
  • 1,282 @ $63.29 · $81.13KSEC filing
  • 10,718 @ $64.40 · $690.2KSEC filing
  • 1,500 @ $65.26 · $97.89KSEC filing
DirectorCommon StockSale4 trades70,592avg $79.79 / share$5.63MMay 27Filed May 29 · 2d later
4 filings
  • 22,414 @ $78.85 · $1.77MSEC filing
  • 24,248 @ $79.72 · $1.93MSEC filing
  • 20,666 @ $80.61 · $1.67MSEC filing
  • 3,264 @ $81.57 · $266.24KSEC filing
Chief Financial OfficerCommon StockSale2 trades26,000avg $69.90 / share$1.82MMay 14Filed May 18 · 4d later
2 filings
  • 25,918 @ $69.90 · $1.81MSEC filing
  • 82 @ $70.65 · $5.79KSEC filing
Chief Technology OfficerCommon StockSale3 trades10,200avg $69.24 / share$706.25KMay 14Filed May 18 · 4d later
3 filings
  • 3,900 @ $68.62 · $267.63KSEC filing
  • 6,100 @ $69.59 · $424.52KSEC filing
  • 200 @ $70.50 · $14.1KSEC filing
President and COOCommon StockSale2 trades55,685avg $70.89 / share$3.95MMay 15Filed May 18 · 3d later
2 filings
  • 32,351 @ $70.53 · $2.28MSEC filing
  • 23,334 @ $71.37 · $1.67MSEC filing
Chief Executive OfficerCommon StockSale60,000$70.02 / share$4.2MMay 14Filed May 18 · 4d laterSEC filing
General CounselCommon StockSale2 trades811avg $26.15 / share$21.21KApr 2Filed Apr 6 · 4d later
2 filings
  • 660 @ $26.04 · $17.19KSEC filing
  • 151 @ $26.65 · $4.02KSEC filing

Congress transactions 0

All Congress filings
No disclosed congressional trades for AMBQ in the imported filings.

This reflects the filings imported so far, not a complete trading history.

Explore furtherTechnical lab Company financials Test a strategy Compare company

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage
Source
SEC EDGAR · Form 4
Issuer CIK
0001500412
Latest public acceptance
Oct 7, 2026, 12:16 AM UTC
Score calculated
Oct 8, 2026, 12:07 AM UTC
Parser
form4-parser-1.5
Classifier
form4-classifier-1.1
Scoring methodology
insider-experimental-1.1
Availability
Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.