Ambiq Micro, Inc. ($AMBQ) Insider Transactions

Last updated: 2026-05-18 23:10 UTC | Total transactions: 62

In the last 12 months, insiders at Ambiq Micro, Inc. ($AMBQ) filed 62 transactions with the SEC: 0 open-market purchases totaling $0 and 12 sales totaling $11,245,077. Net insider sentiment: net selling.

Ambiq Micro, Inc. operates in the Semiconductors & related devices industry (Manufacturing sector).

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View all SEC Filings for Ambiq Micro, Inc. (AMBQ).

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Recent Insider Transactions

Transaction Date Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
May 14, 2026 Hanson Scott McLean Chief Technology Officer M Common Stock 10200 $8.12 213,326.0000 18,313,186 5.02% 0.06%
May 15, 2026 Winzeler Jeffrey G Chief Financial Officer M Common Stock 5952 $16.80 100,347.0000 18,313,186 6.31% 0.03%
May 14, 2026 Winzeler Jeffrey G Chief Financial Officer S Common Stock 82 $70.65 94,395.0000 18,313,186 0.09% 0.00%
May 14, 2026 Hanson Scott McLean Chief Technology Officer M Stock Option (Right to Buy) 10200 $0.00 77,379.0000 18,313,186 11.65% 0.06%
May 15, 2026 Hanson Scott McLean Chief Technology Officer M Common Stock 8100 $8.12 211,226.0000 18,313,186 3.99% 0.04%
May 14, 2026 Hanson Scott McLean Chief Technology Officer S Common Stock 200 $70.50 203,126.0000 18,313,186 0.10% 0.00%
May 14, 2026 Hanson Scott McLean Chief Technology Officer S Common Stock 6100 $69.59 203,326.0000 18,313,186 2.91% 0.03%
May 14, 2026 Hanson Scott McLean Chief Technology Officer S Common Stock 3900 $68.62 209,426.0000 18,313,186 1.83% 0.02%
May 15, 2026 Winzeler Jeffrey G Chief Financial Officer M Stock Option (Right to Buy) 5952 $0.00 110,905.0000 18,313,186 5.09% 0.03%
May 14, 2026 Winzeler Jeffrey G Chief Financial Officer M Stock Option (Right to Buy) 26000 $0.00 116,857.0000 18,313,186 18.20% 0.14%
May 14, 2026 Winzeler Jeffrey G Chief Financial Officer S Common Stock 25918 $69.90 94,477.0000 18,313,186 21.53% 0.14%
May 14, 2026 Winzeler Jeffrey G Chief Financial Officer M Common Stock 26000 $16.80 120,395.0000 18,313,186 27.54% 0.14%
May 15, 2026 Esaka Fumihide Chief Executive Officer M Stock Option (Right to Buy) 6601 $0.00 184,543.0000 18,313,186 3.45% 0.04%
May 15, 2026 Esaka Fumihide Chief Executive Officer M Stock Option (Right to Buy) 7936 $0.00 114,007.0000 18,313,186 6.51% 0.04%
May 15, 2026 Esaka Fumihide Chief Executive Officer M Stock Option (Right to Buy) 45463 $0.00 99,007.0000 18,313,186 31.47% 0.25%
May 14, 2026 Esaka Fumihide Chief Executive Officer M Stock Option (Right to Buy) 60000 $0.00 144,470.0000 18,313,186 29.34% 0.33%
May 15, 2026 Esaka Fumihide Chief Executive Officer M Common Stock 14537 $12.60 451,189.0000 18,313,186 3.33% 0.08%
May 15, 2026 Esaka Fumihide Chief Executive Officer M Common Stock 45463 $8.12 436,652.0000 18,313,186 11.62% 0.25%
May 14, 2026 Esaka Fumihide Chief Executive Officer S Common Stock 60000 $70.02 391,189.0000 18,313,186 13.30% 0.33%
May 14, 2026 Esaka Fumihide Chief Executive Officer M Common Stock 60000 $8.12 451,189.0000 18,313,186 15.34% 0.33%
May 15, 2026 Chen Sean Chihhsiang President and COO M Stock Option (Right to Buy) 55685 $0.00 1.0000 18,313,186 100.00% 0.30%
May 15, 2026 Chen Sean Chihhsiang President and COO S Common Stock 23334 $71.37 120,275.0000 18,313,186 16.25% 0.13%
May 15, 2026 Chen Sean Chihhsiang President and COO S Common Stock 32351 $70.53 143,609.0000 18,313,186 18.39% 0.18%
May 15, 2026 Chen Sean Chihhsiang President and COO M Common Stock 55685 $5.88 175,960.0000 18,313,186 46.30% 0.30%
May 15, 2026 Hanson Scott McLean Chief Technology Officer M Stock Option (Right to Buy) 8100 $0.00 69,279.0000 18,313,186 10.47% 0.04%
April 2, 2026 Connors Michele Kim General Counsel S Common Stock 660 $26.04 60,705.0000 18,313,186 1.08% 0.00%
April 2, 2026 Connors Michele Kim General Counsel S Common Stock 151 $26.65 60,554.0000 18,313,186 0.25% 0.00%
March 6, 2026 Chen Sean Chihhsiang President and COO A Common Stock 64246 $0.00 120,275.0000 18,313,186 114.67% 0.35%
March 6, 2026 Hanson Scott McLean Chief Technology Officer A Common Stock 80308 $0.00 203,126.0000 18,313,186 65.39% 0.44%
March 6, 2026 Esaka Fumihide Chief Executive Officer A Common Stock 160616 $0.00 391,189.0000 18,313,186 69.66% 0.88%
March 6, 2026 Connors Michele Kim General Counsel A Common Stock 32123 $0.00 61,365.0000 18,313,186 109.85% 0.18%
March 6, 2026 Winzeler Jeffrey G Chief Financial Officer A Common Stock 41728 $0.00 94,395.0000 18,313,186 79.23% 0.23%
March 6, 2026 Connors Michele Kim General Counsel A Common Stock 32123 $0.00 61,365.0000 18,313,186 109.85% 0.18%
March 6, 2026 Esaka Fumihide Chief Executive Officer A Common Stock 160616 $0.00 391,189.0000 18,313,186 69.66% 0.88%
March 6, 2026 Winzeler Jeffrey G Chief Financial Officer A Common Stock 41728 $0.00 94,395.0000 18,313,186 79.23% 0.23%
March 6, 2026 Chen Sean Chihhsiang President and COO A Common Stock 64246 $0.00 120,275.0000 18,313,186 114.67% 0.35%
March 6, 2026 Hanson Scott McLean Chief Technology Officer A Common Stock 80308 $0.00 203,126.0000 18,313,186 65.39% 0.44%
Feb. 18, 2026 HSIEH Wen Hsuan Not found M Warrant (Right to Buy) 238931 $0.00 0.0000 18,313,186 100.00% 1.30%
Feb. 18, 2026 HSIEH Wen Hsuan Not found M Common Stock 238931 $12.60 633,920.0000 18,313,186 60.49% 1.30%
Oct. 7, 2025 Esaka Fumihide Chief Executive Officer M Stock Option (Right to Buy) 53660 $0.00 0.0000 0 100.00% 0.00%
Oct. 7, 2025 Esaka Fumihide Chief Executive Officer M Common Stock 53660 $5.88 230,573.0000 0 30.33% 0.00%
Jan. 26, 2026 TAUTGES JOSEPH A Not found S Common Stock 7800 $31.00 48,746.0000 18,313,186 13.79% 0.04%
Jan. 26, 2026 Hanson Scott McLean Chief Technology Officer S Common Stock 10000 $31.00 122,818.0000 18,313,186 7.53% 0.05%
Jan. 5, 2026 Connors Michele Kim General Counsel A Common Stock 5483 $0.00 29,242.0000 18,313,186 23.08% 0.03%
Jan. 5, 2026 Connors Michele Kim General Counsel A Common Stock 23759 $0.00 23,759.0000 18,313,186 9999.99% 0.13%
Oct. 2, 2025 Esaka Fumihide Chief Executive Officer A Common Stock 159907 $0.00 176,913.0000 0 940.30% 0.00%
Oct. 2, 2025 Chen Sean Chihhsiang President and COO A Common Stock 56029 $0.00 56,029.0000 0 9999.99% 0.00%
Oct. 2, 2025 Hanson Scott McLean Chief Financial Officer A Common Stock 83819 $0.00 132,818.0000 0 171.06% 0.00%
Oct. 2, 2025 Winzeler Jeffrey G Chief Financial Officer A Common Stock 52667 $0.00 52,667.0000 0 9999.99% 0.00%
July 31, 2025 KPCB XVI Associates, LLC Not found C Common Stock 748046 $0.00 2,661,028.0000 0 39.10% 0.00%
July 31, 2025 KPCB XVI Associates, LLC Not found C Common Stock 98958 $0.00 2,443,116.0000 0 4.22% 0.00%
July 29, 2025 TAUTGES JOSEPH A Not found A Common Stock 56546 $0.00 56,546.0000 0 9999.99% 0.00%
July 29, 2025 ZHANG KER Not found A Common Stock 23809 $0.00 23,809.0000 0 9999.99% 0.00%
July 29, 2025 Chen Timothy Not found A Common Stock 47618 $0.00 47,618.0000 0 9999.99% 0.00%
July 31, 2025 HSIEH Wen Hsuan Not found C Series G Convertible Preferred Stock 394989 $0.00 0.0000 0 100.00% 0.00%
July 31, 2025 HSIEH Wen Hsuan Not found C Common Stock 394989 $0.00 394,989.0000 0 9999.99% 0.00%
July 31, 2025 KPCB XVI Associates, LLC Not found C Series F Convertible Preferred Stock 171064 $0.00 0.0000 0 100.00% 0.00%
July 31, 2025 KPCB XVI Associates, LLC Not found C Series E Convertible Preferred Stock 22594 $0.00 0.0000 0 100.00% 0.00%
July 31, 2025 KPCB XVI Associates, LLC Not found C Series D Convertible Preferred Stock 98958 $0.00 0.0000 0 100.00% 0.00%
July 31, 2025 KPCB XVI Associates, LLC Not found C Series C Convertible Preferred Stock 748046 $0.00 0.0000 0 100.00% 0.00%
July 31, 2025 KPCB XVI Associates, LLC Not found C Common Stock 194618 $0.00 2,661,028.0000 0 7.89% 0.00%
July 31, 2025 KPCB XVI Associates, LLC Not found C Common Stock 23294 $0.00 2,466,410.0000 0 0.95% 0.00%