I am a registered representative and work out of a credit union. The credit union has a Medallion Stamp Signature Guarantee. We try to follow the guidelines offered by Kemark Financial Services (which ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. A signature guarantee is a form of authentication, issued by a bank or other financial ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Financial institutions provide signature guarantees to confirm that signatures on documents ...

Medallion signature guarantees are for transferring securities, not general use like notarized docs. Only specific financial institutions can issue medallion guarantees, linked to an existing account.

A signature guarantee is not the same thing as notarization. A notary public cannot guarantee a signature. A signature guarantee, sometimes called a Medallion Guarantee, or a Green Medallion, is an ...