X0708 D/A LIVE 0001497839 Bronte Capital Callisto Fund LLC c/o Corporation Service Company 251 Little Falls Drive DE DELAWARE 19808 011-61-2-9389-3293 DELAWARE None Bronte Capital Callisto Fund L.P. Limited Liability Company true - Bronte Capital U.S. LLC c/o Corporation Service Company 251 Little Falls Drive Wilmington DE DELAWARE 19808 Executive Officer Manager Kevin A. Phillip c/o Waystone Governance Ltd. Suite 101 & 102, SIX Cricket Square George Town E9 CAYMAN ISLANDS KY1-1103 Executive Officer Manager of Bronte Capital U.S. LLC, Manager Alan Kelly c/o Waystone Governance Ltd. Suite 101 & 102, SIX Cricket Square George Town E9 CAYMAN ISLANDS KY1-1103 Executive Officer Manager of Bronte Capital U.S. LLC, Manager Pooled Investment Fund Hedge Fund false Decline to Disclose 06b 3C 3C.1 true 0000935836-25-000620 2010-10-13 true true true true Limited Liability Company Interests false 500000 Cristina T. Osmena 002790702 Mercury Securities, LLC 000040368 1299 FOURTH STREET SUITE 200 SAN RAFAEL CA CALIFORNIA 94901 CA CALIFORNIA NY NEW YORK false Indefinite 213886789 Indefinite false 84 0 49088 true Estimated total since inception through October 31, 2018. 0 true None, although the manager of the issuer receives investment management fees and a special profit allocation. false Bronte Capital Callisto Fund LLC Alan Kelly Alan Kelly Manager of Bronte Capital U.S. LLC, Manager 2026-09-23