Ultimately, a member’s ownership stake in an LLC determines that member’s economic interest in the LLC. While this ownership stake can be expressed as a percentage, most companies find it more convenient to express members’ ownership using “units” rather than percentages. Units function much like shares of stock in a corporation – the LLC can repurchase units or issue new units, and members can transfer units. Ultimately units translate into ownership stakes in the company, but without the need to recalculate ownership percentages every time the LLC issues additional ownership stakes.