UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Citius Oncology, Inc. (Exact name of registrant as specified in its charter) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended: June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to ______________ Commission File Number 001-41534 FORM 10-Q (Mark One) | Delaware | 99 ...