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What Medallion Stamps Are and How They Work

A Medallion Stamp is an official guarantee provided by certain financial institutions that a signature on a financial document is genuine. These stamps are not issued by the government, but rather by private banking and securities organizations that have been authorized to provide this service. The Medallion Stamp serves as a form of authentication, similar to a notary public's seal, but specifically designed for financial transactions.

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The Medallion Stamp program actually includes three different programs that operate under similar rules: the Securities and Exchange Commission (SEC) Medallion Program (SEMP), the Stock Exchanges Medallion Program (STAMP), and the New York Stock Exchange Medallion Program (NYSE MED). Each program is administered by different organizations, but they all serve the same basic purpose—to protect both financial institutions and their customers by verifying signatures on important financial documents.

When you need a Medallion Stamp, you're asking a financial institution to vouch for your signature. This means the institution is confirming that the person signing the document is actually who they claim to be. The stamp includes the signature of an authorized officer, the date, and a reference number. Financial institutions take this responsibility very seriously because they can face significant liability if they provide a Medallion Stamp for a forged signature.

Medallion Stamps are typically required for certain types of financial transactions, particularly those involving the transfer of securities or the movement of large sums of money. Common situations that may require a Medallion Stamp include transferring stocks or bonds, changing beneficiaries on investment accounts, requesting large wire transfers, and executing stock power documents. The specific situations vary depending on the financial institution and the type of transaction involved.

Key Takeaway: Understanding that a Medallion Stamp is a signature verification tool provided by financial institutions—not a government service—helps clarify what this document does and why institutions request it for certain transactions.

Who Issues Medallion Stamps and Where to Request One

Medallion Stamps are issued by financial institutions that are members of one of the three Medallion programs recognized by the SEC. These institutions must meet specific requirements and undergo regular audits to maintain their authority to issue stamps. Typical institutions that offer Medallion Stamp services include commercial banks, investment firms, broker-dealers, and credit unions. Not every financial institution offers this service, so it's important to know where you can obtain one.

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If you have a brokerage account, your broker is often the most convenient place to request a Medallion Stamp. Major brokerage firms like Fidelity, Charles Schwab, E*TRADE, and Vanguard typically provide this service to their clients. Similarly, if you maintain an investment account at a bank, that bank may offer Medallion Stamp services. The key advantage of going through your existing financial institution is that they already have your account information on file and can verify your identity more easily.

Commercial banks and credit unions also frequently offer Medallion Stamps, though availability varies by institution. Some community banks and smaller credit unions may not offer this service, so it's worth calling ahead to confirm. When contacting your financial institution, ask specifically if they are a participant in one of the Medallion programs and what their process is for obtaining a stamp.

If you don't have an account with a suitable financial institution, you have other options. Some institutions offer Medallion Stamp services to non-customers for a fee, though this is less common than providing the service to existing clients. Additionally, certain securities transfer agents and specialized financial service companies may provide Medallion Stamp services. You can search for participating institutions through the official websites of the three Medallion programs or contact the organization managing the institution where you need the stamp issued.

The process for requesting a Medallion Stamp typically involves visiting the financial institution in person or contacting them by phone. Most institutions will not provide Medallion Stamps remotely for security reasons, as they need to verify your identity face-to-face. You should bring government-issued identification and the specific document or documents that need to be stamped. Some institutions may ask you to bring the document itself, while others may need you to describe what needs to be stamped so they can properly authenticate it.

Key Takeaway: Start by contacting your existing financial institutions—banks and brokerages where you have accounts—as they are most likely to offer Medallion Stamp services and can process your request efficiently.

Understanding the Different Medallion Programs

The three Medallion programs operate independently but serve essentially the same purpose. Understanding the differences between them can help you understand what institution might be able to assist you. The SEC Medallion Program (SEMP) is administered by the Federal Reserve Banks and is the oldest of the three programs. This program is designed primarily for transactions involving certain types of securities and is commonly used for more straightforward financial transfers.

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The Stock Exchanges Medallion Program (STAMP) is administered by the American Stock Exchange and has become one of the most widely used programs among securities firms and brokerage houses. STAMP participants include a broad range of financial institutions, making it a common option for individuals seeking Medallion Stamps. Many major brokerage firms participate in the STAMP program.

The New York Stock Exchange Medallion Program (NYSE MED) is administered by the New York Stock Exchange and primarily serves larger financial institutions and broker-dealers. While it serves similar functions to the other programs, it tends to be used more heavily by institutional participants. From a consumer perspective, the differences between these programs are largely technical, and your primary concern should be finding any participating institution that can provide the service you need.

Each program has specific requirements for member institutions, including capital requirements, insurance coverage, and regular audits. These requirements exist to ensure that only financially stable and trustworthy institutions can issue Medallion Stamps. Institutions participating in any of these programs have demonstrated that they meet these standards. The insurance that backs these programs protects financial institutions if they issue a Medallion Stamp that later turns out to be fraudulent, which provides another layer of security.

From a practical standpoint, when you're seeking a Medallion Stamp, you don't need to worry about which specific program your institution participates in. All three programs provide equivalent authentication services. What matters is finding a nearby institution that participates in one of these programs and that is willing to provide the service you need. The institution you work with will follow the specific rules of their program, but the end result—a valid Medallion Stamp that financial institutions will recognize—is the same across all three programs.

Key Takeaway: Rather than focusing on which Medallion program to use, focus on finding a participating financial institution near you that can provide the service—all three programs are equally recognized and valid.

Situations Where Medallion Stamps May Be Required

Medallion Stamps are used in specific financial situations where the stakes are high enough to warrant additional verification measures. One of the most common situations is when transferring securities from one broker to another. If you decide to move your stock or bond accounts from one financial institution to a different one, the receiving institution may request a Medallion Stamp to verify that you actually authorized the transfer. This protects both institutions and ensures that someone isn't fraudulently attempting to move your investments.

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Changing the beneficiary designation on an investment account often requires a Medallion Stamp. Beneficiary designations determine who receives your account assets if you pass away, making this an important transaction. Financial institutions request Medallion Stamps in these situations to verify that you, not someone forging your name, are making this change. Similarly, updating or changing instructions about how your account should be managed or transferred may require a Medallion Stamp.

Requesting large wire transfers can trigger a Medallion Stamp requirement. The threshold for what constitutes a "large" transfer varies by institution but typically involves amounts in the thousands or tens of thousands of dollars. Wire transfers move money quickly and irrevocably, so institutions take extra precautions to verify that the person requesting the transfer actually owns the account and has authorized the transaction.

Stock power documents, which are legal documents that prove ownership of securities and allow for their transfer, often require Medallion Stamps. These documents are particularly important in estate situations or when dealing with inherited securities. A Medallion Stamp on a stock power document assures the receiving institution that the signature on the document is genuine.

Certain inheritance and estate-related transactions may require Medallion Stamps as well. When settling an estate, transferring assets from a deceased person's accounts, or executing other estate