What is non pre-emption right? What is non pre emptive right?

Non pre emptive rights / Non pre emption rights / Non pre-emption rights: In buying or selling a company, it is important to consider if the existing shareholders have any pre-emptive, also known as pre-emption, rights. Such rights can be defined as rights that give the company’s existing shareholders the first opportunity to acquire any shares that are being transferred. If there are no pre-emption rights then it’s called non pre-emption rights that the shares can be bought or sold without any restriction unlike pre-emption rights.