<img src="https://ml.globenewswire.com/Resource/Download/dab74495-313f-47dd-a6cb-b42a7f024edd?size=2" nborder="0" align="left" hspace="5" vspace="5" title="Celcuity Logo_RGB.jpg" alt="Celcuity Inc."/>MINNEAPOLIS, June 01, 2026 (GLOBE NEWSWIRE) -- Celcuity Inc. (Nasdaq: CELC), a clinical-stage biotechnology company focused on the development of targeted therapies for the treatment of multiple solid tumor indications, today announced it will host a conference call and live webcast to review results from the PIK3CA mutant cohort of the Phase 3 VIKTORIA-1 clinical trial on Tuesday, June 2, 2026 at 8:00 a.m. EDT / 7:00 a.m. CDT. Webcast and Conference Call Information The Celcuity management team will host a live webcast and conference call on Tuesday, June 2, 2026, at 8:00 a.m. EDT / 7:00 a.m. CDT to discuss the results from the Phase 3 VIKTORIA-1 trial. Those who would like to participate may access the live webcast <a href="https://www.globenewswire.com/Tracker?data=SudjyrApMg9ma26U2RMP4CIwbqDdLoSUsgZaABeMs95Yi0Ep86HDM0sXTTR9ejIs7fBNi3M5YLRXlU1WEFp6z2LXj5XysKfuNNbBleyrPBM=" rel="nofollow" target="_blank" title="here">here</a>, or register in advance for the teleconference <a href="https://www.globenewswire.com/Tracker?data=SudjyrApMg9ma26U2RMP4KscvR2C5cADN_akwI_2qhrtYXVibjNV9TvLxfPWP-vjdYnS1m3dSGlvmCPF80IvO_mSlBtWPXZsjpzjR0N3R-FgavYrx9f9PfG6xrapak9i1z_GdGU3JUdiwn4HJREANaDnu3gGQQgrJk3cGq2zYgk=" rel="nofollow" target="_blank" title="here">here</a>. A replay of the webcast will be available on the Celcuity website. About Celcuity Celcuity is a clinical-stage biotechnology company focused on the development of targeted therapies for the treatment of multiple solid tumor indications. Our lead therapeutic candidate is gedatolisib, a kinase inhibitor of the PI3K/AKT/mTOR (“PAM”) pathway that binds to all class I PI3K isoforms and the mTOR complexes, mTORC1 and mTORC2. By targeting all class I PI3K isoforms and mTORC1/2, gedatolisib induces comprehensive inhibition of the PAM pathway. Its mechanism of action and pharmacokinetic properties are differentiated from other currently approved and investigational therapies that target PI3Kα, AKT, or mTORC1 alone or together. Our Phase 3 clinical trial, VIKTORIA-1, evaluating gedatolisib in combination with fulvestrant with or without palbociclib in patients with hormone receptor positive (HR+), human epidermal growth factor receptor 2 negative (HER2-) (“HR+/HER2-”) locally advanced or metastatic breast cancer (“ABC”), has reported detailed results for Study 1, which evaluated patients with PIK3CA wild-type (“WT”) tumors, and announced topline results for Study 2, which evaluated patients with PIK3CA mutant-type (“MT”) tumors. Our Phase 3 clinical trial, VIKTORIA-2, is ongoing and incorporates two independent studies, Study 1 and Study 2, evaluating two separate cohorts of patients with advanced breast cancer who are treatment-naive in the advanced setting. Study 1 is evaluating gedatolisib combined with palbociclib and fulvestrant as first-line treatment for patients with endocrine-resistant HR+/HER2- ABC. Study 2 is evaluating gedatolisib combined with palbociclib and letrozole as first-line treatment for patients with endocrine-sensitive HR+/HER2- ABC. A Phase 1b/2 clinical trial, CELC-G-201, evaluating gedatolisib in combination with darolutamide in patients with metastatic castration-resistant prostate cancer, is ongoing. More detailed information about Celcuity’s active clinical trials can be found at <a href="https://www.globenewswire.com/Tracker?data=8M4GAtRytESJPqnBHs0wJKtHxuRq_y9FcalDFRRh_MZ3vTRBFQerXlE4xSr7up0TxPtzXxgpDWb0CHlyS_Q1sdMCv4u6IU_fypvrDfFKwCOthE17EbmRuJ7Jv1IIBvLC0GTuBjNnG3uVdugBpNenKIZEyBFdhQGHzYHqOdarB44=" rel="nofollow" target="_blank" title="ClinicalTrials.gov">ClinicalTrials.gov</a>. Celcuity is headquartered in Minneapolis, Minnesota. Further information about the Company can be found at <a href="https://www.globenewswire.com/Tracker?data=Gj9d4zYvDTHeWM7yCfW4bGwmdvB9I7Hnfgl2ojBYwK5Y-PppPRxgDw_6XiZLhP2EfExsUNhU3i45zehV3SVLClqfSha_wIQYRbICvTwxpaE=" rel="nofollow" target="_blank" title="www.celcuity.com">www.celcuity.com</a>. Follow us on <a href="https://www.globenewswire.com/Tracker?data=BTtIogGzhgAxbt1W7h_9wu6C6P3R4VO_dBI7NG5_wP6sHsnZ0PO_W1DWrg34AIPiLsrQOlHfhj0QQCCnxHvh-Eycdqu7Qqef7jjQ9lxxjPU=" rel="nofollow" target="_blank" title="LinkedIn ">LinkedIn </a>and <a href="https://www.globenewswire.com/Tracker?data=pvN1U0dkoZyRPXmVxN_DKQNqhgI2rpqSsZ8zySnqCR1t8v_GdAp4cy2D3gqOoJlOgJN4ewIcMYCI_vgz_MJfPQ==" rel="nofollow" target="_blank" title="X">X</a>. Contacts:  Celcuity Inc.  Brian Sullivan, <a href="https://www.globenewswire.com/Tracker?data=weK9C9SitQKlRYyYZ-0QTf1twQymowXWZPTVSMK-7w-E-CjNxg3Erdp9sX2bAyYKI2MwsROfk1fD5-LNInPT_WtdfwhTNj-mJ3_uLt-Gs3E=" rel="nofollow" target="_blank" title="bsullivan@celcuity.com">bsullivan@celcuity.com</a> Vicky Hahne, <a href="https://www.globenewswire.com/Tracker?data=tehNQ1YPaWKue_4oGZLg1UvGjGwVn0bRRjHzSQBojLuBluKFmTLg3avrgHHLRwMs4jamD8cSDqu1W9_Y_Vnr3ax7kE1XAJF3WLX2dx5_zV4=" rel="nofollow" target="_blank" title="vhahne@celcuity.com">vhahne@celcuity.com</a>   (763) 392-0123   Jodi Sievers, <a href="https://www.globenewswire.com/Tracker?data=vFXR5OoeYxOpX_vZ7G-Oy5SyXPqNMt38xDLSSEDmwRbCLcKRl_6krPgYDBaAD8K_aNMwrTY9nMCxUN5RNFEFXCmaV4fdgnQdPD6wP_69eoI=" rel="nofollow" target="_blank" title="jsievers@celcuity.com">jsievers@celcuity.com</a> (415) 494-9924 <img alt="" src='https://ml.globenewswire.com/media/MTZkMTRlNjYtMGEwOC00MGZiLThkNTEtY2U1MWQ2NDgwZTg5LTExNjg1NzMtMjAyNi0wNi0wMS1lbg==/tiny/Celcuity-Inc-.png' referrerpolicy='no-referrer-when-downgrade' />

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Celcuity to Hold Conference Call to Discuss Results for the PIK3CA Mutant Cohort of the Phase 3 VIKTORIA-1 Clinical Trial of Gedatolisib Regimens in HR+/HER- Advanced Breast Cancer on June 2, 2026

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