A bank, broker-dealer, credit union, or other eligible guarantor institution that wants to issue Medallion Signature Guarantees under the Securities Transfer Agents Medallion Program (STAMP) maintains a surety bond through the program administrator, Kemark Financial Services. The aggregate limit you need is set by your own transaction volume and equipment; the premium is 2% of the bond amount, $100 minimum, after a quick soft credit check that never affects your score.
















No long underwriting queue for the standard STAMP guarantor bond — enter your aggregate limit, pay, and route the executed bond to Kemark. Here is the whole thing:
Your institution's details, the aggregate bond limit Kemark set for your STAMP tier, and the effective date — that is the entire application.
A soft credit check informs approval on larger limits — it never affects your score. Most applicants finish in one sitting; the rest clear within 48 hours.
Submit the executed bond to Kemark Financial Services to complete or maintain your STAMP enrollment. Wet-ink originals mailed on request.
A Medallion Signature Guarantee is the stamp a bank, broker-dealer, or credit union affixes to certify that a signature on a securities transfer instruction is genuine. Under SEC Rule 17Ad-15 (17 CFR 240.17Ad-15), a registered transfer agent may reject a guarantee unless the guarantor participates in a qualifying signature guarantee program — one that gives the transfer agent "adequate protection... against risk of financial loss" if the guarantor has no recourse against the person it guaranteed.
STAMP is one of the national programs transfer agents accept for that purpose, and Kemark Financial Services administers it: Kemark enrolls guarantor institutions, sets the aggregate surety limit each one carries based on its transaction volume and equipment, and monitors that every participant maintains a current bond at that limit.
The bond is a three-party arrangement — your institution (the principal), the surety carrier, and the parties protected by the guarantee program (transfer agents and, ultimately, securities holders) — up to the aggregate limit Kemark assigns. If your institution issues a guarantee that turns out to be invalid or fraudulent and there is no recourse against the party you guaranteed, a claim can reach the bond; if the surety pays, your institution repays the surety. It is not insurance for your institution.
Enter the aggregate limit Kemark assigned your institution. A soft credit check may inform larger limits — it never affects your score.
Start the application →2% of your aggregate limit, $100 minimum, soft pull only. Free until issued.