A
system and method for determining whether to
throttle or kill a sale of shares of an asset using a settlement approval service, including querying, by a settlement approval service, a
transfer agent whether a buyer of shares of an asset is approved; querying, by the settlement approval service, a
transfer agent whether a seller of shares of the asset is approved; based on the buyer and the seller being approved, querying, by the settlement approval service, the
transfer agent as to whether the shares offered for sale are valid; and based on determining, by the settlement approval service, that the shares are valid, approving, by the settlement approval service, the sale of shares of the asset.