Roblox RegisterIndependent record of Roblox groups · not affiliated with Roblox Corporation
Sinister Shark

Sinister Shark #548418678

2
members (measured 22 Oct 2026, 05:22 UTC)
4 October 2025
created (per Roblox API)
10 August 2026
first measured by this register

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)MembersChange
10 Aug 2026, 21:572first reading

Ownership

Owned by @Sinster_Zombie as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

@Sinster_Zombie — Holder Owner (rank 255)

shark (@megahungry_shark) — Owner (rank 254)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Holder Owner1
Owner1
Member2
NOOB0
Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.