Dudediligence.

Ambiq Micro, Inc

AMBQNYSE · Semiconductors & Related Devices
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$40.9M

21 notices · 618,864 sh

Oct 2025 to Oct 2026

Reported ·

$16.9M

16 sales · 0 buys

Oct 2025 to Jun 2026

The two figures cover different periods.

None of the 16 reported sales carry the 10b5-1 box. Together they are 1.00% of the shares on issue.

PLANNED · FORM 144Oct 2025 to Oct 2026REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-10-05: SEAN CHEN, Form 1442026-10-02: Sean Chihhsiang Chen, Form 1442026-10-02: Fumihide Esaka, Form 1442026-10-02: Scott McLean Hanson, Form 1442026-10-02: Jeffrey G. Winzeler, Form 1442026-09-11: KER ZHANG, Form 1442026-09-11: FUMIHIDE ESAKA, Form 1442026-09-04: SEAN CHEN, Form 1442026-09-04: KER ZHANG, Form 1442026-09-02: FUMIHIDE (HUMI) ESAKA, Form 1442026-09-01: FUMIHIDE (HUMI) ESAKA, Form 1442026-08-31: FUMIHIDE (HUMI) ESAKA, Form 1442026-08-27: SCOTT HANSON, Form 1442026-08-26: SCOTT HANSON, Form 1442026-08-14: SCOTT HANSON, Form 1442026-08-14: FUMIHIDE ESAKA, Form 1442026-05-27: Triumph Way Investment Inc, Form 1442026-05-15: SEAN CHEN, Form 1442026-05-14: JEFF G WINZELER, Form 1442026-05-14: SCOTT HANSON, Form 1442026-05-14: FUMIHIDE ESAKA, Form 1442026-01-26: TAUTGES JOSEPH A, sold2026-01-26: Hanson Scott McLean, sold2026-04-02: Connors Michele Kim, sold2026-05-14: Winzeler Jeffrey G, sold2026-05-14: Hanson Scott McLean, sold2026-05-14: Esaka Fumihide, sold2026-05-15: Chen Sean Chihhsiang, sold2026-05-27: Chen Timothy, sold
under a no plan named▼ salesize is dollars

Form 144 notices, newest first

2026-10-05SEAN CHEN, President and COO$3,627,517
53,205 shplan 2026-06-05Form 4s on file end Jun 23144 ↗
2026-10-02Sean Chihhsiang Chen, President and COO$401,208
5,802 shplan 2026-06-05Form 4s on file end Jun 23144 ↗
2026-10-02Fumihide Esaka, Chief Executive Officer$1,145,124
16,560 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-10-02Scott McLean Hanson, Chief Technology Officer$600,222
8,680 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-10-02Jeffrey G. Winzeler, Chief Financial Officer$377,213
5,455 shno plan dateForm 4s on file end Jun 23144 ↗
2026-09-11KER ZHANG, Director$634,361
10,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-09-11FUMIHIDE ESAKA, Chief Executive Officer$3,167,995
50,000 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-09-04SEAN CHEN, President and COO$1,692,900
30,000 shplan 2026-06-05Form 4s on file end Jun 23144 ↗
2026-09-04KER ZHANG, Director$10,530
185 shno plan dateForm 4s on file end Jun 23144 ↗
2026-09-02FUMIHIDE (HUMI) ESAKA, Chief Executive Officer$625,109
11,027 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-09-01FUMIHIDE (HUMI) ESAKA, Chief Executive Officer$2,761,534
48,973 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-08-31FUMIHIDE (HUMI) ESAKA, Chief Executive Officer$2,009,854
35,000 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-08-27SCOTT HANSON, Chief Technology Officer$1,644,610
27,500 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-08-26SCOTT HANSON, Chief Technology Officer$1,638,469
27,500 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-08-14SCOTT HANSON, Chief Technology Officer$1,351,140
21,000 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-08-14FUMIHIDE ESAKA, Chief Executive Officer$2,927,470
45,500 shplan 2026-05-15Form 4s on file end Jun 23144 ↗
2026-05-27Triumph Way Investment Inc, Director$5,646,654
70,592 shno plan date144 ↗
Form 4, 2026-05-29: sold 70,592 at $79.79The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $78.29 to $79.26 per share. The Reporting Person undertakes to provide to the Issuer, any security... Form 4 ↗
2026-05-15SEAN CHEN, President and COO$3,947,281
55,685 shno plan date144 ↗
Form 4, 2026-05-18: sold 55,685 at $70.88The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $70.02 to $71.0097 per share. The Reporting Person undertakes to provide to the Issuer, any security... Form 4 ↗
2026-05-14JEFF G WINZELER, Chief Financial Officer$1,817,410
26,000 shno plan date144 ↗
Form 4, 2026-05-18: sold 26,000 at $69.90The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $69.61 to $70.435 per share. The Reporting Person undertakes to provide to the Issuer, any security... Form 4 ↗
2026-05-14SCOTT HANSON, Chief Technology Officer$706,252
10,200 shno plan date144 ↗
Form 4, 2026-05-18: sold 10,200 at $69.24The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $68.22 to $69.01 per share. The Reporting Person undertakes to provide to the Issuer, any security... Form 4 ↗
2026-05-14FUMIHIDE ESAKA, Chief Executive Officer$4,201,122
60,000 shno plan date144 ↗
Form 4, 2026-05-18: sold 60,000 at $70.02 Form 4 ↗