ESAKA FUMIHIDE

PrivateCIK: 2078454
Location

AUSTIN, TX

ESAKA FUMIHIDE (Chief Executive Officer) sold 13.3% of their position (60K shares) of AMBIQ MICRO, INC. on the open market

Open‑market sale worth $4.20M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderESAKA FUMIHIDECIK 2078454
IssuerAMBIQ MICRO, INC.CIK 1500412
DirectorOfficer· Chief Executive Officer
Since Mar 2026
-60K
Net shares
Net seller
$4.20M
Total sold
1
Open market trades
0B · 1S
8
Total transactions
120K acquired · 180K disposed
Non-Derivative Transactions4

Common Stock

Direct
M · Option Exercise

Shares

+60K

Price / share

$8.12

Trade value

$487.20K

% of position

15.3%
5/14/2026
391.19K451.19K

Common Stock

Direct
S · Sale

Shares

60K

Price / share

$70.02

Trade value

$4.20M

% of position

13.3%
5/14/2026
451.19K391.19K

Common Stock

Direct
M · Option Exercise

Shares

+45.46K

Price / share

$8.12

Trade value

$369.16K

% of position

11.6%
5/15/2026
391.19K436.65K

Common Stock

Direct
M · Option Exercise

Shares

+14.54K

Price / share

$12.60

Trade value

$183.17K

% of position

3.3%
5/15/2026
436.65K451.19K
Total

Net shares

+60K

Net value

-$3.16M

Derivative Transactions4

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

60K shares

Shares

60K

Strike price

8.12

Held after

144.47K

Exercisable

5/14/2026

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

45.46K shares

Shares

45.46K

Strike price

8.12

Held after

99.01K

Exercisable

5/15/2026

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

7.94K shares

Shares

7.94K

Strike price

12.6

Held after

114.01K

Exercisable

5/15/2026

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

6.60K shares

Shares

6.60K

Strike price

12.6

Held after

184.54K

Exercisable

5/15/2026
ESAKA FUMIHIDE — Insider Transaction (Form 4) Filed May 18, 2026 | Finecho