Overview
If you have been told you need a Medallion Signature Guarantee, you may be wondering whether a notary public can handle the job instead. After all, both involve verifying identity and stamping documents. The short answer is no — a notary and a Medallion Signature Guarantee serve fundamentally different purposes, and one cannot substitute for the other when it comes to securities transactions.
This article breaks down the differences so you can get the right stamp the first time and avoid costly delays.
The Core Difference: Identity Verification vs. Financial Liability
A notary public confirms that the person signing a document is who they claim to be. The notary watches you sign, checks your government-issued ID, and places their seal on the document. That is essentially where the notary’s role ends. A notary does not vouch for the contents of the document, and a notary does not accept any financial responsibility if something goes wrong with the transaction.
A Medallion Signature Guarantee does everything a notary does — and much more. The institution providing the guarantee verifies your identity, confirms that you have the legal authority to execute the transaction, and then accepts financial liability if the signature turns out to be forged or unauthorized. This financial liability is what makes the Medallion Signature Guarantee so important in the securities industry. If a fraudulent transfer occurs, the guarantor institution is on the hook financially, not the transfer agent or the company that issued the securities.
In other words, a notary says, “This person showed me valid ID.” A Medallion Signature Guarantee says, “This person showed valid ID, they have the authority to make this transaction, and we will back that up financially.”
For a deeper explanation of how Medallion Signature Guarantees work, see What is a Medallion Signature Guarantee?.
Why Transfer Agents Will Not Accept a Notarized Signature
Transfer agents — the companies that maintain ownership records for stocks, bonds, and mutual funds — are responsible for making sure that securities end up in the right hands. If a transfer agent processes a fraudulent transfer based on a forged signature, they could face significant legal and financial consequences.
A notary stamp does not protect the transfer agent from this risk. It only confirms that someone showed an ID and signed a document. It offers no guarantee that the signer had the authority to transfer the securities, and no institution stands behind it financially.
A Medallion Signature Guarantee, on the other hand, shifts that risk. The guarantor institution agrees to cover losses resulting from a forged or unauthorized signature, up to a defined dollar limit. This is why virtually every transfer agent in the United States requires a Medallion Signature Guarantee for securities transfers rather than a notarized signature.
The Legal Framework: SEC Rule 17Ad-15
The requirement for signature guarantees is not just an industry convention. It is rooted in federal securities law. SEC Rule 17Ad-15 establishes the standards that transfer agents must follow when accepting signature guarantees. Under this rule, transfer agents are required to obtain a signature guarantee from a participant in a recognized Medallion Signature Guarantee program before processing a transfer.
The SEC recognizes three official Medallion programs:
STAMP (Securities Transfer Agents Medallion Program) — The largest program, with participating institutions across the United States.
SEMP (Stock Exchanges Medallion Program) — Administered through certain stock exchanges and their member firms.
MSP (New York Stock Exchange Medallion Signature Program) — Associated with NYSE member firms.
A valid Medallion stamp from any of these three programs is accepted by transfer agents nationwide. Each participating institution is assigned a coverage limit that determines the maximum dollar value of the transactions it can guarantee.
When You Need a Notary vs. When You Need a Medallion Guarantee
Understanding which situations call for which stamp can save you time, money, and frustration. Here is a straightforward breakdown:
You Need a Medallion Signature Guarantee When:
- Transferring stock, bond, or mutual fund ownership from one person to another
- Re-registering securities after a name change due to marriage, divorce, or court order
- Adding or removing an owner from a securities account
- Transferring securities from a deceased person’s account to heirs or beneficiaries
- Converting physical stock certificates to electronic (book-entry) form
- Gifting shares to another person or entity
You Need a Notary When:
- Signing real estate documents such as deeds or mortgage paperwork
- Executing a power of attorney
- Signing affidavits or sworn statements
- Certifying copies of documents
- Signing contracts or agreements that require notarization
The simplest rule of thumb: if the transaction involves securities (stocks, bonds, or mutual funds) and a transfer agent is involved, you almost certainly need a Medallion Signature Guarantee, not a notary.
The Common Mistake: Getting a Notary Stamp and Having It Rejected
This is one of the most frequent problems people run into when trying to transfer securities. The scenario usually plays out like this:
- You receive paperwork from a transfer agent with instructions that include the words “signature guarantee required.”
- You assume this means a notarized signature, so you visit a notary public and have the documents notarized.
- You mail the documents to the transfer agent.
- Days or weeks later, the transfer agent rejects your documents because a notary stamp is not a Medallion Signature Guarantee.
Now you are back to square one, but you have lost valuable time. In some cases — such as estate settlements or time-sensitive transfers — this delay can have real financial consequences.
The situation is made worse by the fact that many banks and credit unions have reduced or eliminated their Medallion Signature Guarantee services in recent years. Even if you know you need a Medallion stamp, finding an institution that will provide one — especially if you are not an existing customer with a qualifying account — can be difficult.
How eSignature Guarantee Can Help
eSignature Guarantee was built to solve exactly this problem. We provide Medallion Signature Guarantees online starting at $300, with processing typically within 5 business days, without requiring you to be a customer of any particular bank or financial institution.
Here is how it works:
- Apply online at esignatureguarantee.com. There is no need to visit a branch in person or maintain a qualifying account balance.
- Submit your documents through our secure platform. We verify your identity, review your paperwork, and confirm your authority to execute the transaction.
- Receive your guaranteed documents with a valid Medallion stamp that is accepted by transfer agents nationwide.
Our Medallion Signature Guarantees are issued through a recognized Medallion program and carry the same legal weight as a stamp from any major bank or brokerage. Transfer agents accept them without issue.
Whether you are settling an estate, transferring inherited stock, changing the name on an investment account, or handling any other securities transaction that requires a Medallion stamp, eSignature Guarantee provides a straightforward path to getting it done.
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What is a Medallion Signature Guarantee?