Superyacht Watch

The public record of superyacht movements

26 m motor yacht · United Kingdom flag

J4

Outside the monitored area — no signal since 3 Sep 2026. Last signal 3 Sep 2026, 16:44 UTC.

J4 is a 26 m motor yacht registered under the United Kingdom flag, on the record since 22 Aug 2026.

The last 90 days

JulAugSeptAt anchor (open water), since 22 Aug 2026
In portAt anchorGaps: underway or outside the monitored area

Port calls

ArrivedDepartedPlaceTime in port
22 Aug 2026Still at anchorAt anchor (open water)

Movement log

22 Aug 2026

Time (UTC)EventPlace
First recorded

Economic footprint

At 26 m, J4 represents an estimated €1,800 a day in running spend — crew, berthing, fuel, maintenance and provisioning — much of it landing wherever the yacht is lying. An order-of-magnitude estimate, not an account: how it is derived.

Registry particulars

Name
J4
Type
Motor Yacht
Length overall
26 m
Beam
6 m
Flag
United Kingdom
MMSI
232031943
IMO
0
Callsign
MILA9
First recorded
22 Aug 2026
Last signal
3 Sep 2026, 16:44 UTC

Particulars as broadcast over AIS; dimensions are the transmitted hull values. Vessel operators: see the privacy & takedown policy.