N-PX RMIC LIVE 0001609212 XXXXXXXX N-2 06/30/2026 YEAR 2026 AMG Pantheon Master Fund, LLC 203-299-3538

680 Washington Blvd Stamford CT 06901

Ropes & Gray LLP

Prudential Tower 800 Boylston Street Boston MA 02199

FUND NOTICE REPORT 811-22972 N 0 AMG Pantheon Master Fund, LLC Keitha L. Kinne Keitha L. Kinne President 08/18/2026