Net Asset Value(s)

NET ASSET VALUE

THE THROGMORTON TRUST PLC

The unaudited net asset value for The Throgmorton Trust PLC at close of
business on 21 September 2010 was:

188.17p Capital only
190.36p Including current year revenue
188.17p Capital only (adjusted for treasury shares)
190.36p Including current year income (adjusted for treasury shares)
179.66p Capital only (diluted for subscription shares)
181.41p Including current year income (diluted for subscription shares)

Notes:

1. Investments have been valued on a bid price basis.

2. Following the conversion of 11,400 Subscription Shares into Ordinary Shares
on 9 August 2010, the Company's issued share capital now comprises 58,367,192 Ordinary Shares,
7,400,000 Treasury Shares and 14,763,134 Subscription Shares.

3. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.