Superyacht Watch

The public record of superyacht movements

33 m motor yacht · United Kingdom flag

M4

Outside the monitored area — no signal since 29 Aug 2026. Last signal 29 Aug 2026, 17:04 UTC.

M4 is a 33 m motor yacht registered under the United Kingdom flag, on the record since 21 Jul 2026.

The last 90 days

JulAugSeptAt anchor (open water), 21 Jul 2026 – 24 Jul 2026 (3 days)At anchor (open water), 30 Jul 2026 – 21 Aug 2026 (22 days)At anchor (open water), 24 Aug 2026 – 26 Aug 2026 (2 days)At anchor (open water), 26 Aug 2026 – 29 Aug 2026 (3 days)At anchor (open water), 29 Aug 2026 – 29 Aug 2026 (86 minutes)
In portAt anchorGaps: underway or outside the monitored area

Port calls

ArrivedDepartedPlaceTime in port
29 Aug 202629 Aug 2026At anchor (open water)84 minutes
26 Aug 202629 Aug 2026At anchor (open water)3 days
24 Aug 202626 Aug 2026At anchor (open water)2 days
30 Jul 202621 Aug 2026At anchor (open water)22 days
21 Jul 202624 Jul 2026At anchor (open water)3 days

Movement log

29 Aug 2026

Time (UTC)EventPlace
New destinationfor Porto Rafael

26 Aug 2026

Time (UTC)EventPlace
New destinationfor Mallorca

24 Aug 2026

Time (UTC)EventPlace
New destinationfor Ibiza

21 Jul 2026

Time (UTC)EventPlace
First recorded

Economic footprint

At 33 m, M4 represents an estimated €3,600 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
M4
Type
Motor Yacht
Length overall
33 m
Beam
9 m
Flag
United Kingdom
MMSI
235006459
IMO
906506
Callsign
ZIUV8
First recorded
21 Jul 2026
Last signal
29 Aug 2026, 17:04 UTC

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