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Important Updates regarding the Coronavirus (COVID-19): Learn More Atomic Credit Union lobbies have reopened. We will recognize every Wednesday from 10am to 11am as specially designated lobby service hours for our at-risk population of members. Social distancing practices are in place and appointments are also available. Please contact us at 800.652.2328 for appointment availability. Drive-Thru, ATM and Digital Banking Services remain available.

Medallion Guarantee and Notary Services

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Assurance For Your Stocks, Bonds and Securities Transactions

Your investments require careful handling. That's why Atomic Credit Union participates in the Securities Transfer Agents Medallion Program (STAMP), which guarantees our members' signatures on transactions involving your stocks, bonds and securities.

Only program officially endorsed by the Securities Transfer Association.

  • Allied and CUMIS have tailored this program to suit our credit union's needs
  • STAMP assures all transfer agents will accept our signature guarantees
  • Each credit union guarantor can guarantee signatures on transactions up to $250,000 per transaction
  • By appointment only. Please contact:
    • Branden McGhee, South Regional Manager, 800.652.2328 ext. 1590
    • Geoff Grimes, North Regional Manager, 800.652.2328 ext. 1490