MainStay MacKay DefinedTerm Municipal Opportunities Fund announced monthly dividend distributions of $0.06 per common share for the months of November and December 2023. For the November dividend Ex-Date is November 14, 2023. Record Date is November 15, 2023.

Payable Date is November 30, 2023. For the December dividend Ex-Date is December 14, 2023. Record Date is December 15, 2023.

Payable Date is December 29, 2023.