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Ambiq Micro, Inc.

AMBQ Mostly scheduled

CIK 0001500412 #2295 in the set updated 17 Sep 2026

Bought (1 mo)

$0.00

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

Sold (1 mo)

$15.84M

$0.00 on a plan · $15.21M straight out of an exercise

Sold at will

$634.36K

2 of 25 sales

Net

−$15.84M

−$634.36K against sales at will

By person

11 insiders · 25 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

—

$10.15M (14) scheduled

−$10.15M

460,460

1.90%

$28.09M

+2,608%

Hanson Scott McLean

Chief Technology Officer

—

$3.28M (3) scheduled

−$3.28M

221,226

0.9147%

$13.49M

+351.5%

Chen Sean Chihhsiang

President and COO

—

$1.76M (5) scheduled

−$1.76M

120,275

0.4973%

$7.34M

—

ZHANG KER

Director

—

$644.89K (3)

−$644.89K

20,366

0.0842%

$1.24M

—

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

—

Winzeler Jeffrey G

Chief Financial Officer

—

106,299

0.4395%

$6.48M

—

Connors Michele Kim

General Counsel

—

60,554

0.2504%

$3.69M

—

TAUTGES JOSEPH A

Director

—

53,703

0.2221%

$3.28M

—

Chen Timothy

Director

—

52,575

0.2174%

$3.21M

−25.5%

Banks Bernard Bennett

Director

—

4,957

0.0205%

$302.38K

—

Individual transactions

Nothing of that kind in this period.

What was left out

Form 4 filings counted 9

Amendments (4/A) skipped 0

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 23

Sales at will 2

Transactions with no price 0

Shares from compensation/vesting 278,056

History held since 31 Jul 2025