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Kiniksa Pharmaceuticals International, PLC
Kiniksa Pharmaceuticals is a biopharmaceutical company that believes every second makes a difference for patients living with debilitating diseases. The company’s own description of itself, taken from its website.
Active 2 years old · 4,166th oldest of 4,506 · incorporated in the 2020s
Registered office
105 PICCADILLY, SECOND FLOOR, LONDON, W1J 7NJ
Other PLCs registered in London
Online
Website kiniksa.com
Social accounts X, Facebook, Instagram
Found by searching for the company name and kept only where the domain matches it. Social accounts are listed only where the company links to them from its own site. Nothing here is supplied by the company to us.
Filing history
This company has 68 documents on its Companies House record. The most recent accounts were filed on 21/06/2026. Its last confirmation statement or annual return was filed on 05/05/2026.
The most recent filings
This is the list of documents filed, not their contents. A line saying accounts were filed records that they were filed and when; it says nothing about turnover, profit or assets, which are inside the documents themselves and are not published here. Read the filings on the Companies House record.
Who runs it
The register lists 11 current officers and 4 who have resigned.
Who controls it
Companies must record the people or entities with significant control. The register shows 2 current entries.
Holds 25% to 50% of the voting rights since 28/06/2024
Owns 25% to 50% of the shares since 27/06/2024
Charges
No charges are registered against this company.
Officers, controllers and charges are as recorded on the Companies House register on 13/10/2026, and the register changes daily. Appearing here is not an allegation about anyone. Read the current record on the Companies House record.
What it does
This page is compiled from the public register. Companies House does not verify the information filed with it, so treat everything here as what the company reported rather than as established fact. For filings, officers and charges, see the official Companies House record.
Also at W1J 7NJ
A shared registered office is not evidence of a relationship. Formation agents and genuine groups look identical on the register.
On the register
- 4,166th oldest of 4,506 PLCs
- One of the 2020s cohort
- Not in liquidation or facing strike off
There are 4,506 PLCs in Britain, under a tenth of one per cent of the register. The whole count.