Hi Paul and welcome to the forum
Unlikely - as the dividend income would already be captured under your IVA, but if you were able to pay creditors in full then that would be acceptable of course!
As you would be able to afford more per month, it would be perfectly right to increase your payments, and your IP will need to see copies of the company's filed accounts each year to make sure that you are not building up reserves which they could benefit from.
The shares will also be valued as an asset for the purposes of your statement of affairs.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
To have me propose an IVA for you, please visit:
http://www.melaniegiles.com/ivaEnquiry.asp
See customer feedback at:
http://www.iva.com/iva_companies/IVA_Advice_Bureau.asp