Syndicate 2001 Portfolio Transfers

In February 2023, MS Amlin announced a Reinsurance To Close (“RITC”) agreement with Riverstone International (“RiverStone”) for all liabilities in our portfolio for 2018 and prior years of account.  Alongside the RITC we also confirmed a 100% Quota Share arrangement (“QS”) for our discontinued lines, for 2019-2021 years of account. 

As of 2nd October 2023, RiverStone has assumed operational responsibility for the transferred portfolio.

Transaction scope

The transaction with Riverstone has two primary elements.  The RITC includes liabilities for all MS Amlin product lines and policies for 2018 and prior.  

The QS covers the discontinued product lines for the 2019-2021 years of account. 

Contact details

Please use these contact details for any enquiries.

  • Financial Institutions, Professional Indemnity, MedMal, Cyber and Directors & Officers
    – UK and Europe

In addition, the following general telephone numbers and emails may also be useful: 

 You can also visit:


P&C UK Portfolio Transfer

Changes to making a claim for Property & Casualty UK Portfolio of Syndicate 2001 policies.

MS Amlin has now put the Property & Casualty UK Portfolio of Syndicate 2001 into ‘Reinsure To Close’ (RITC) and has entered into agreement with RiverStone Managing Agency Limited (RiverStone), who from 1 November 2022 will assume the liabilities of the P&C UK Portfolio Syndicate 2001 for 2020 and prior years of account.

Transaction scope

In summary the P&C UK Portfolio transferring to RiverStone comprises  that business written through MS AUL Syndicate 2001 in the following Lloyd’s SCOB codes:

Motor (AI011)
Employers’ Liability (AI070)
Public/Product Liability (AI080)
Package (AI090)
Real Estate (AI091)

but expressly excluding Lloyd's SCOB code - Professional Indemnity (AI050) and all contracts of insurance and reinsurance, in any class, that are facilitated through the use of centralised London Market / DXC processes.

For clarity, any business written in any class which is facilitated through London Market  / DXC processes remain within the  ongoing book of Syndicate 2001.

Contact details

From 1st November 2022 RiverStone will assume operational responsibility for the management of the RITC portfolio outlined above; it is essential that you update your records for the ‘in scope’ policies and use the following contact details: