Ambiq Micro, Inc.

By person

11 insiders · 54 transactions

33.7×

Fumihide Esaka holds 33.7 times base salary in stock. $28.09M of shares against $832.17K in salary for 2025.

Salary from the company's own proxy. The shares are what Fumihide Esaka last reported holding, valued at $61.00, the price Common Stock was last bought or sold at on the open market here, on 15 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Esaka Fumihide

Chief Executive Officer

—

$15.22M (18) scheduled

−$15.22M

460,460

1.90%

$28.09M

+2,608%

Chen Sean Chihhsiang

President and COO

—

$5.71M (7) scheduled

−$5.71M

120,275

0.4973%

$7.34M

—

Chen Timothy

Director

—

$5.63M (4)

−$5.63M

52,575

0.2174%

$3.21M

−25.5%

Hanson Scott McLean

Chief Technology Officer

—

$4.75M (10) scheduled

−$4.75M

221,226

0.9147%

$13.49M

+351.5%

Winzeler Jeffrey G

Chief Financial Officer

—

$1.82M (2) scheduled

−$1.82M

106,299

0.4395%

$6.48M

—

ZHANG KER

Director

—

$644.89K (3)

−$644.89K

20,366

0.0842%

$1.24M

—

TAUTGES JOSEPH A

Director

—

$241.80K (1)

−$241.80K

53,703

0.2221%

$3.28M

—

Connors Michele Kim

General Counsel

—

$21.21K (2)

−$21.21K

60,554

0.2504%

$3.69M

—

KPCB XVI Associates, LLC entity

10% owner

—

1,488,949

6.16%

$90.83M

+251.1%

HSIEH Wen Hsuan

Director

—

638,877

2.64%

$38.97M

—

Banks Bernard Bennett

Director

—

4,957

0.0205%

$302.38K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Esaka Fumihide

15 Sep 2026

Chief Executive Officer

Sold after exercise

100

$61.00

$6.10K

Esaka Fumihide

15 Sep 2026

Chief Executive Officer

Sold after exercise

9,615

$60.55

$582.17K

Esaka Fumihide

15 Sep 2026

Chief Executive Officer

Sold after exercise

3,785

$59.56

$225.44K

Chen Sean Chihhsiang

14 Sep 2026

President and COO

Sold after exercise

1,400

$60.83

$85.17K

Chen Sean Chihhsiang

14 Sep 2026

President and COO

Sold after exercise

11,000

$60.24

$662.62K

Chen Sean Chihhsiang

14 Sep 2026

President and COO

Sold after exercise

2,600

$59.36

$154.35K

ZHANG KER

11 Sep 2026

Director

Sell

900

$63.95

$57.55K

ZHANG KER

11 Sep 2026

Director

Sell

9,100

$63.39

$576.81K

Esaka Fumihide

11 Sep 2026

Chief Executive Officer

Sold after exercise

7,917

$63.86

$505.57K

Esaka Fumihide

11 Sep 2026

Chief Executive Officer

Sold after exercise

42,083

$63.27

$2.66M

ZHANG KER

4 Sep 2026

Director

Sold after exercise

185

$56.92

$10.53K

Chen Sean Chihhsiang

4 Sep 2026

President and COO

Sold after exercise

2,126

$57.68

$122.62K

Chen Sean Chihhsiang

4 Sep 2026

President and COO

Sold after exercise

12,874

$57.09

$734.93K

Esaka Fumihide

2 Sep 2026

Chief Executive Officer

Sold after exercise

9,575

$56.77

$543.57K

Esaka Fumihide

2 Sep 2026

Chief Executive Officer

Sold after exercise

1,452

$56.15

$81.53K

Esaka Fumihide

1 Sep 2026

Chief Executive Officer

Sold after exercise

48,973

$56.39

$2.76M

Esaka Fumihide

31 Aug 2026

Chief Executive Officer

Sold after exercise

5,600

$58.46

$327.36K

Esaka Fumihide

31 Aug 2026

Chief Executive Officer

Sold after exercise

13,800

$57.70

$796.28K

Esaka Fumihide

31 Aug 2026

Chief Executive Officer

Sold after exercise

15,600

$56.81

$886.22K

Esaka Fumihide

31 Aug 2026

Chief Executive Officer

Sold after exercise

2,100

$58.52

$122.89K

Esaka Fumihide

31 Aug 2026

Chief Executive Officer

Sold after exercise

5,501

$57.75

$317.71K

Esaka Fumihide

31 Aug 2026

Chief Executive Officer

Sold after exercise

5,899

$56.87

$335.45K

Hanson Scott McLean

27 Aug 2026

Chief Technology Officer

Sold after exercise

4,910

$60.32

$296.18K

Hanson Scott McLean

27 Aug 2026

Chief Technology Officer

Sold after exercise

22,590

$59.69

$1.35M

Hanson Scott McLean

26 Aug 2026

Chief Technology Officer

Sold after exercise

27,500

$59.58

$1.64M

Esaka Fumihide

14 Aug 2026

Chief Executive Officer

Sold after exercise

1,500

$65.26

$97.89K

Esaka Fumihide

14 Aug 2026

Chief Executive Officer

Sold after exercise

10,718

$64.40

$690.20K

Esaka Fumihide

14 Aug 2026

Chief Executive Officer

Sold after exercise

1,282

$63.29

$81.13K

Hanson Scott McLean

14 Aug 2026

Chief Technology Officer

Sold after exercise

800

$65.30

$52.24K

Hanson Scott McLean

14 Aug 2026

Chief Technology Officer

Sold after exercise

5,400

$64.41

$347.79K

Hanson Scott McLean

14 Aug 2026

Chief Technology Officer

Sold after exercise

800

$63.26

$50.60K

Winzeler Jeffrey G

2 Jun 2026

Chief Financial Officer

Exercised, kept

5,952

$16.80

$99.99K

Chen Timothy

27 May 2026

Director

Sell indirect

3,264

$81.57

$266.24K

Chen Timothy

27 May 2026

Director

Sell indirect

20,666

$80.61

$1.67M

Chen Timothy

27 May 2026

Director

Sell indirect

24,248

$79.72

$1.93M

Chen Timothy

27 May 2026

Director

Sell indirect

22,414

$78.85

$1.77M

Esaka Fumihide

15 May 2026

Chief Executive Officer

Exercised, kept

14,537

$12.60

$183.17K

Esaka Fumihide

15 May 2026

Chief Executive Officer

Exercised, kept

45,463

$8.12

$369.16K

Chen Sean Chihhsiang

15 May 2026

President and COO

Sold after exercise

23,334

$71.37

$1.67M

Chen Sean Chihhsiang

15 May 2026

President and COO

Sold after exercise

32,351

$70.53

$2.28M

Hanson Scott McLean

15 May 2026

Chief Technology Officer

Exercised, kept

8,100

$8.12

$65.77K

Winzeler Jeffrey G

15 May 2026

Chief Financial Officer

Exercised, kept

5,952

$16.80

$99.99K

Esaka Fumihide

14 May 2026

Chief Executive Officer

Sold after exercise

60,000

$70.02

$4.20M

Hanson Scott McLean

14 May 2026

Chief Technology Officer

Sold after exercise

200

$70.50

$14.10K

Hanson Scott McLean

14 May 2026

Chief Technology Officer

Sold after exercise

6,100

$69.59

$424.52K

Hanson Scott McLean

14 May 2026

Chief Technology Officer

Sold after exercise

3,900

$68.62

$267.63K

Winzeler Jeffrey G

14 May 2026

Chief Financial Officer

Sold after exercise

$70.65

$5.79K

Winzeler Jeffrey G

14 May 2026

Chief Financial Officer

Sold after exercise

25,918

$69.90

$1.81M

Connors Michele Kim

2 Apr 2026

General Counsel

Sell

151

$26.65

$4.02K

Connors Michele Kim

2 Apr 2026

General Counsel

Sell

660

$26.04

$17.19K

HSIEH Wen Hsuan

18 Feb 2026

Director

Exercised, kept indirect

238,931

$12.60

$3.01M

Hanson Scott McLean

26 Jan 2026

Chief Technology Officer

Sell

10,000

$31.00

$310.00K

TAUTGES JOSEPH A

26 Jan 2026

Director

Sell

7,800

$31.00

$241.80K

Esaka Fumihide

7 Oct 2025

Chief Executive Officer

Exercised, kept

53,660

$5.88

$315.52K

By person

Individual transactions

What was left out