Share-based memberships are typically permissioned. Prospective members submit proposals or apply to join, usually offering a tribute of some value, such as tokens, assets, or work. If approved, the new member is awarded ownership and voting power. In cases where joining requires contributing tokens or funds, these assets are moved into the DAO's treasury. With share-based membership, members can typically exit with their share of the treasury according to the DAO's pre-established terms.