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Ambiq Micro, Inc.

AMBQ Net selling

CIK 0001500412 #2295 in the set updated 17 Sep 2026

Bought (12 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$34.04M

$0.00 on a plan · $27.20M straight out of an exercise

Sold at will

$6.84M

10 of 47 sales

Net

−$34.04M

−$6.84M against sales at will

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

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

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

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

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

Show all 54 transactions →

What was left out

Form 4 filings counted 35

Amendments (4/A) skipped 6

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 37

Sales at will 10

Transactions with no price 0

Shares from compensation/vesting 1,608,506

History held since 31 Jul 2025