Summit is listed on AIM, a market of the London Stock Exchange, and the Nasdaq Global Market.  More detailed share information is provided below.


Issued share capital: 81,989,004 Ordinary Shares of 1p nominal value

The percentage of Ordinary Shares not being held in public hands is 30.6%.
Shares held in treasury: Nil Ordinary shares.
There are no restrictions on the transfer of Ordinary Shares in the Company.

AIM Listing

Shares Listed: Ordinary Shares
Ticker: SUMM
Index FTSE AIM All Share
Sector: Pharmaceutical & Biotechnology


NASDAQ Listing

Shares Listed: American Depositary Shares (ADS)
Ticker: SMMT
Market: NASDAQ Global Market
Depositary Bank: Bank of New York Mellon

Each ADS represents five Ordinary Shares.

Information correct as at 30 April 2018



Summit had been notified of the following holdings of more than 3% or more of the issued share capital of the Company

Name Number of Shares
Lansdowne Partners Limited 19,060,500 26.9%
Robert Keith 4,294,816 6.1%
Point72 Asset Management 4,006,155 5.7%
Hargreave Hale Limited 2,921,500 4.1%

Information reviewed on 17 November 2017