All Shares are non-transferable and unique to the DAO being used (in this case Raid Guild).
Each share represents a pro-rata claim on the underlying capital pool and can be exchanged at any time using the Ragequit feature.
There is no cap on the amount of shares that can be issued, and each share carries one vote.
All new shares are issued at a rate of 5 wxDAI/share and new members may request a maximum of 100 shares when joining.
Loot, or non-voting shares are similar to normal shares in that they can be Rage Quit to withdraw an amount proportional to your pro-rata claim on the Guilds assets held by War Chest. For instance, if you're requesting funding for work that you completed you may request Loot > wxDAI for that work.