Ambiq Micro Inc

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Ambiq Micro Inc
TickerAMBQ
CIK #0001500412
CUSIP023193105
SectorManufacturing - Semiconductors & Related Devices
Address6500 River Place Boulevard Building 7, Suite 200, Austin, TX 78730
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Ambiq Micro Inc 2024-09-27 0.3 M Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001500412] 10-K
[0001500412] 10-Q
[0001500412] 3
[0001500412] 4
[0001500412] 8-K
[0001500412] D
[0001500412] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
T Rowe Price Investment Management Inc Ambiq Micro Inc [2026-05-15] 0.0
Kleiner Perkins Caufield & Byers XVI LLC Ambiq Micro Inc [2025-11-03] 0.0
Form 3/4/5 Filer 2011 - 2026
Chen Timothy
Ambiq Micro Inc
Tautges Joseph A
Zhang KER
Banks Bernard Bennett
HSIEH Wen Hsuan
Winzeler Jeffrey G
Chen Sean Chihhsiang
Hanson Scott McLean
Esaka Fumihide
Connors Michele Kim
Kleiner Perkins Caufield & Byers XVI LLC
KPCB XVI Associates LLC
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Winzeler Jeffrey G
Common Stock
2026-03-06 Grant 41,728 $0.00
Chen Sean Chihhsiang
Common Stock
2026-03-06 Grant 64,246 $0.00
Connors Michele Kim
Common Stock
2026-03-06 Grant 32,123 $0.00
Hanson Scott McLean
Common Stock
2026-03-06 Grant 80,308 $0.00
Esaka Fumihide
Common Stock
2026-03-06 Grant 160,616 $0.00
HSIEH Wen Hsuan
Warrant (Right to Buy) · derivative
2026-02-18 Option exercise 238,931 $0.00
HSIEH Wen Hsuan
Common Stock
2026-02-18 Option exercise 238,931 $12.60 3,010,531
Tautges Joseph A
Common Stock
2026-01-26 Sell 7,800 $31.00 241,800
Hanson Scott McLean
Common Stock
2026-01-26 Sell 10,000 $31.00 310,000
Connors Michele Kim
Common Stock
2026-01-05 Grant 23,759 $0.00
Connors Michele Kim
Common Stock
2026-01-05 Grant 5,483 $0.00
Esaka Fumihide
Stock Option (Right to Buy) · derivative
2025-10-07 Option exercise 53,660 $0.00
Esaka Fumihide
Common Stock
2025-10-07 Option exercise 53,660 $5.88 315,521
Chen Sean Chihhsiang
Common Stock
2025-10-02 Grant 56,029 $0.00
Winzeler Jeffrey G
Common Stock
2025-10-02 Grant 52,667 $0.00
Hanson Scott McLean
Common Stock
2025-10-02 Grant 83,819 $0.00
Esaka Fumihide
Common Stock
2025-10-02 Grant 159,907 $0.00
Kleiner Perkins Caufield & Byers XVI LLC +1
Common Stock
2025-07-31 Conversion 194,618
Kleiner Perkins Caufield & Byers XVI LLC +1
Common Stock
2025-07-31 Conversion 748,046
Kleiner Perkins Caufield & Byers XVI LLC +1
Common Stock
2025-07-31 Conversion 98,958
showing 20 of 30 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 97 9,726,912
2025-12-31 75 4,750,140
2025-09-30 73 4,548,517
Form 13F Holdings
Firm Period DFND Voting Shares
Wasatch Advisors LP [2026-06-30] SOLE 81,559 81,559
Moody Aldrich Partners LLC [2026-06-30] SOLE 35,465 81,393
Perpetual Ltd [2026-06-30] DFND 8,671 8,671
Versant Capital Management Inc [2026-06-30] SOLE 190 190
Farther Finance Advisors LLC [2026-06-30] SOLE 0 139
Gamma Investing LLC [2026-06-30] DFND 50 50
Hughes Financial Services LLC [2026-06-30] SOLE 7 7
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