X0708 D LIVE 0002151688 Altimeter Premier Growth IX, L.P. ONE INTERNATIONAL PLACE SUITE 4610 BOSTON MA MASSACHUSETTS 02110 (617) 310-6180 DELAWARE None None Limited Partnership true 2026 Brad Gerstner One International Place Suite 4610 Boston MA MASSACHUSETTS 02110 Executive Officer Managing Member of the General Partner of the Issuer John Kiernan III One International Place Suite 4610 Boston MA MASSACHUSETTS 02110 Executive Officer Chief Financial Officer of the General Partner of the Issuer Matthew Tolve One International Place Suite 4610 Boston MA MASSACHUSETTS 02110 Executive Officer Vice President of the General Partner of the Issuer Pooled Investment Fund Venture Capital Fund false Decline to Disclose 06b 3C 3C.7 false true false true true false 2000000 JP Morgan Securities, LLC 79 None None 383 Madison Avenue New York NY NEW YORK 10179 All States false Raymond James & Associates, Inc. 705 None None 800 Carillon Parkway St. Petersburg FL FLORIDA 33716 All States false 2500000000 0 2500000000 false 0 12000000 true 0 0 false Altimeter Premier Growth IX, L.P. /s/ Matthew Tolve Matthew Tolve Vice President of the General Partner of the Issuer 2026-11-09