ETASSUM40120 | Schedule 4 Company Share Option Plan (CSOP): Grant of share options - legal considerations
From HM Revenue & Customs · Employee Tax Advantaged Share Scheme User Manual
Paragraph 1 and 2(1) Schedule 4 provides for share options to be granted to employees and directors under a Schedule 4 CSOP scheme. Section 521 defines a “share option” as “a right to acquire shares in a company”. The word “right” indicates that there must be some sort of contractual legal entitlement.
For an employee or director to have a legally enforceable “right” to acquire shares under English law:
the option must have been granted under the company seal or deed, or
consideration must have been given for the grant of the option.
It is acceptable for options to be granted by Deed, without being executed under the seal of the company. A document executed by a company will be a Deed if it is clear from the document that it is intended to be a Deed.
Grant under the company seal is not required under Scottish law. In US schemes a “stock-option agreement” (which forms the contract) is usual - this does not have to be given under seal or in the form of a deed.