Divesture
An asset is disposed and transferred to another party, changing hands of assets is distinguishing feature
Spin-Off
Form of divesture that results in a subsidiary or division becoming independent
Shares of new entity are distributed to parent company
Split-off
One or more of the parent firms shareholders receive stock of a subsidiary
Split-up
Firm separates into several parts and distributes stock of each part to its shareholders, then ceases to exist