Quick Takeaways
- AMBQ - Ambiq Micro, Inc. has 11 insiders with reported activity on this page.
- Net insider value flow over the last year: -$573,010.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 11 Insiders of Ambiq Micro, Inc.
- Symbol
- AMBQ on NYSE
- Location
- Austin, TX
What Changed
- Buy value: ; sell value: $573,009.
- Net share flow: -18,611.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$573,010.
Buys
$0
Shares: 0
Insiders: 0
Sells
$573,010
Shares: 18,611
Insiders: 3
Net
-$573,010
Shares: -18,611
Insiders: -3
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 811 | $0 | $21,210 | -$21,210 |
| 3-6 | 0 | 17,800 | $0 | $551,800 | -$551,800 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Ambiq Micro, Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Fumihide Esaka | Chief Executive Officer, Director | $10,530,807 | Mixed | 06 Mar 2026 | ||
| Wen Hsuan Hsieh | Director | $7,987,392 | Mixed | 18 Feb 2026 | ||
| Scott McLean Hanson | Chief Technology Officer, Director | $5,468,151 | -$310,000 | -5.4% | Mixed | 06 Mar 2026 |
| Sean Chihhsiang Chen | President and COO | $3,237,803 | Mixed | 06 Mar 2026 | ||
| Jeffrey G. Winzeler | Chief Financial Officer | $2,541,113 | Mixed | 06 Mar 2026 | ||
| Michele Kim Connors | General Counsel | $1,613,818 | -$21,210 | -1.3% | Filing P/S | 02 Apr 2026 |
| Joseph A. Tautges | Director | $1,511,126 | -$241,800 | -14% | Filing P/S | 26 Jan 2026 |
| Bernard Bennett Banks | Director | Mixed | 05 Jan 2026 | |||
| Timothy Chen | Director | Mixed | 29 Jul 2025 | |||
| Ker Zhang | Director | Mixed | 29 Jul 2025 | |||
| KPCB XVI Associates, LLC | 10%+ Owner | Mixed | 31 Jul 2025 |
Top shareholders of Ambiq Micro, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Kleiner Perkins Caufield & Byers XVI, LLC |
13D/G
|
KPCB XVI Associates, LLC |
8.2%
|
1,488,949
|
$44,549,354 | $0 | 30 Sep 2025 | |
| Atreides Management, LP |
13F
|
Company |
3.8%
|
696,420
|
$19,847,970 | — | 31 Dec 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
2.2%
|
395,371
|
$11,268,074 | — | 31 Dec 2025 | |
| KADENSA CAPITAL Ltd |
13F
|
Company |
2.2%
|
394,991
|
$11,257,244 | — | 31 Dec 2025 | |
| Fumihide Esaka |
3/4/5
|
Chief Executive Officer, Director |
2.2%
|
391,189
|
$10,530,807 | — | 06 Mar 2026 | |
| VANGUARD GROUP INC |
13F
|
Company |
1.8%
|
328,182
|
$9,353,188 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
1.7%
|
307,896
|
$8,775,038 | — | 31 Dec 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
1.7%
|
307,887
|
$8,774,780 | — | 31 Dec 2025 | |
| Wen Hsuan Hsieh |
3/4/5
|
Director |
3.5%
|
633,920
|
$7,987,392 | — | 18 Feb 2026 | |
| Schonfeld Strategic Advisors LLC |
13F
|
Company |
1.2%
|
221,810
|
$6,321,584 | — | 31 Dec 2025 | |
| WASATCH ADVISORS LP |
13F
|
Company |
1.2%
|
217,512
|
$6,199,092 | — | 31 Dec 2025 | |
| Scott McLean Hanson |
3/4/5
|
Chief Technology Officer, Director |
1.1%
|
203,126
|
$5,468,151 | -$310,000 | 06 Mar 2026 | |
| First Eagle Investment Management, LLC |
13F
|
Company |
1%
|
189,723
|
$5,407,106 | — | 31 Dec 2025 | |
| SILVERCREST ASSET MANAGEMENT GROUP LLC |
13F
|
Company |
1%
|
188,690
|
$5,377,665 | — | 31 Dec 2025 | |
| SOFTBANK GROUP CORP. |
13F
|
Company |
0.82%
|
148,939
|
$4,244,762 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.73%
|
132,112
|
$3,765,193 | — | 31 Dec 2025 | |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC |
13F
|
Company |
0.68%
|
123,597
|
$3,522,515 | — | 31 Dec 2025 | |
| Sean Chihhsiang Chen |
3/4/5
|
President and COO |
0.66%
|
120,275
|
$3,237,803 | — | 06 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.57%
|
104,184
|
$2,969,806 | — | 31 Dec 2025 | |
| GILDER GAGNON HOWE & CO LLC |
13F
|
Company |
0.52%
|
93,745
|
$2,671,733 | — | 31 Dec 2025 | |
| Jeffrey G. Winzeler |
3/4/5
|
Chief Financial Officer |
0.52%
|
94,395
|
$2,541,113 | — | 06 Mar 2026 | |
| Monashee Investment Management LLC |
13F
|
Company |
0.47%
|
85,089
|
$2,425,037 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
0.47%
|
84,507
|
$2,408,450 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.34%
|
62,018
|
$1,767,513 | — | 31 Dec 2025 | |
| MAVERICK CAPITAL LTD |
13F
|
Company |
0.33%
|
59,248
|
$1,688,568 | — | 31 Dec 2025 | |
| Michele Kim Connors |
3/4/5
|
General Counsel |
0.33%
|
60,554
|
$1,613,818 | -$21,210 | 02 Apr 2026 | |
| Joseph A. Tautges |
3/4/5
|
Director |
0.27%
|
48,746
|
$1,511,126 | -$241,800 | 26 Jan 2026 | |
| SEVEN GRAND MANAGERS, LLC |
13F
|
Company |
0.28%
|
50,000
|
$1,425,000 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.22%
|
39,284
|
$1,119,595 | — | 31 Dec 2025 | |
| PEAK6 LLC |
13F
|
Company |
0.2%
|
35,835
|
$1,021,298 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.2%
|
35,789
|
$1,019,987 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.19%
|
33,833
|
$964,241 | — | 31 Dec 2025 | |
| Alyeska Investment Group, L.P. |
13F
|
Company |
0.18%
|
32,832
|
$935,712 | — | 31 Dec 2025 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.15%
|
26,976
|
$768,816 | — | 31 Dec 2025 | |
| Polar Asset Management Partners Inc. |
13F
|
Company |
0.14%
|
26,088
|
$743,508 | — | 31 Dec 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.12%
|
22,179
|
$632,102 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.11%
|
20,456
|
$582,996 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.11%
|
20,284
|
$578,094 | — | 31 Dec 2025 | |
| Ghisallo Capital Management LLC |
13F
|
Company |
0.11%
|
20,000
|
$570,000 | — | 31 Dec 2025 | |
| Hound Partners, LLC |
13F
|
Company |
0.11%
|
20,000
|
$570,000 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
0.11%
|
20,000
|
$570,000 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
0.11%
|
19,574
|
$557,859 | — | 31 Dec 2025 | |
| KORNITZER CAPITAL MANAGEMENT INC /KS |
13F
|
Company |
0.09%
|
17,073
|
$486,580 | — | 31 Dec 2025 | |
| READYSTATE ASSET MANAGEMENT LP |
13F
|
Company |
0.09%
|
16,596
|
$472,986 | — | 31 Dec 2025 | |
| Inspire Investing, LLC |
13F
|
Company |
0.09%
|
16,141
|
$460,019 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.08%
|
15,389
|
$438,587 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.07%
|
12,691
|
$361,695 | — | 31 Dec 2025 | |
| Walleye Capital LLC |
13F
|
Company |
0.06%
|
11,555
|
$329,318 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.06%
|
10,818
|
$308,314 | — | 31 Dec 2025 | |
| LOS ANGELES CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.05%
|
8,658
|
$257,315 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for Ambiq Micro, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Michele Kim Connors | AMBQ | Common Stock | Sale | -1.32% | $21,210 | $26.15 | -811 | 60,554 | 02 Apr 2026 | Direct |
| Jeffrey G. Winzeler | AMBQ | Common Stock | Award | 79.2% | 41,728 | 94,395 | 06 Mar 2026 | Direct | ||
| Sean Chihhsiang Chen | AMBQ | Common Stock | Award | 114.7% | 64,246 | 120,275 | 06 Mar 2026 | Direct | ||
| Scott McLean Hanson | AMBQ | Common Stock | Award | 65.4% | 80,308 | 203,126 | 06 Mar 2026 | Direct | ||
| Fumihide Esaka | AMBQ | Common Stock | Award | 69.7% | 160,616 | 391,189 | 06 Mar 2026 | Direct | ||
| Michele Kim Connors | AMBQ | Common Stock | Award | 109.8% | 32,123 | 61,365 | 06 Mar 2026 | Direct | ||
| Wen Hsuan Hsieh | AMBQ | Common Stock | Options Exercise | 60.5% | 238,931 | 633,920 | 18 Feb 2026 | By: Matter Venture Partners Fund I, L.P. | ||
| Wen Hsuan Hsieh | AMBQ | Warrant (Right to Buy) | Options Exercise | -100% | -238,931 | 0 | 18 Feb 2026 | By: Matter Venture Partners Fund I, L.P. | ||
| Scott McLean Hanson | AMBQ | Common Stock | Sale | -7.53% | $310,000 | $31.00 | -10,000 | 122,818 | 26 Jan 2026 | Direct |
| Joseph A. Tautges | AMBQ | Common Stock | Sale | -13.8% | $241,800 | $31.00 | -7,800 | 48,746 | 26 Jan 2026 | Direct |
| Michele Kim Connors | AMBQ | Common Stock | Award | 29,242 | 29,242 | 05 Jan 2026 | Direct | |||
| Fumihide Esaka | AMBQ | Common Stock | Options Exercise | 30.3% | 53,660 | 230,573 | 07 Oct 2025 | Direct | ||
| Fumihide Esaka | AMBQ | Stock Option (Right to Buy) | Options Exercise | -100% | -53,660 | 0 | 07 Oct 2025 | Direct | ||
| Jeffrey G. Winzeler | AMBQ | Common Stock | Award | 52,667 | 52,667 | 02 Oct 2025 | Direct | |||
| Scott McLean Hanson | AMBQ | Common Stock | Award | 171.1% | 83,819 | 132,818 | 02 Oct 2025 | Direct | ||
| Sean Chihhsiang Chen | AMBQ | Common Stock | Award | 56,029 | 56,029 | 02 Oct 2025 | Direct | |||
| Fumihide Esaka | AMBQ | Common Stock | Award | 940.3% | 159,907 | 176,913 | 02 Oct 2025 | Direct | ||
| KPCB XVI Associates, LLC | AMBQ | Common Stock | Conversion of derivative security | 27% | 316,870 | 1,488,949 | 31 Jul 2025 | By KPCB Holdings, Inc., as nominee | ||
| KPCB XVI Associates, LLC | AMBQ | Common Stock | Conversion of derivative security | 176.4% | 748,046 | 1,172,079 | 31 Jul 2025 | By: KPCB Holdings, Inc., as nominee | ||
| KPCB XVI Associates, LLC | AMBQ | Series F Convertible Preferred Stock | Conversion of derivative security | -100% | -171,064 | 0 | 31 Jul 2025 | By: KPCB Holdings, Inc., as nominee | ||
| KPCB XVI Associates, LLC | AMBQ | Series E Convertible Preferred Stock | Conversion of derivative security | -100% | -22,594 | 0 | 31 Jul 2025 | By: KPCB Holdings, Inc., as nominee | ||
| KPCB XVI Associates, LLC | AMBQ | Series D Convertible Preferred Stock | Conversion of derivative security | -100% | -98,958 | 0 | 31 Jul 2025 | By: KPCB Holdings, Inc., as nominee | ||
| KPCB XVI Associates, LLC | AMBQ | Series C Convertible Preferred Stock | Conversion of derivative security | -100% | -748,046 | 0 | 31 Jul 2025 | By: KPCB Holdings, Inc., as nominee | ||
| Wen Hsuan Hsieh | AMBQ | Common Stock | Conversion of derivative security | 394,989 | 394,989 | 31 Jul 2025 | By: Matter Venture Partners Fund I, L.P. | |||
| Wen Hsuan Hsieh | AMBQ | Series G Convertible Preferred Stock | Conversion of derivative security | -100% | -394,989 | 0 | 31 Jul 2025 | By: Matter Venture Partners Fund I, L.P. | ||
| Timothy Chen | AMBQ | Common Stock | Award | 47,618 | 47,618 | 29 Jul 2025 | Direct | |||
| Ker Zhang | AMBQ | Common Stock | Award | 23,809 | 23,809 | 29 Jul 2025 | Direct | |||
| Joseph A. Tautges | AMBQ | Common Stock | Award | 56,546 | 56,546 | 29 Jul 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.