UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) 5000 Shoreline Court, Suite 300 South San Francisco, California 94080 (Address of principal executive offices) (Zip Code) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0 ...

Exhibit 99.1 IDEAYA Biosciences, Inc. Reports First Quarter 2025 Financial Results and Provides Business Update SOUTH SAN FRANCISCO, Calif., May 6, 2025 -- IDEAYA Biosciences, Inc. (Nasdaq: IDYA), a precision medicine oncology company committed to the discovery and development of targeted therapeutics, provided a business update and announced financial results for the first quarter that ended March 31, 2025. "We have provided an updated cash runway guidance into 2029, and this past quarter we made significa ...

Core Insights - IDEAYA Biosciences, Inc. provided a business update and announced financial results for Q1 2025, highlighting significant progress in its clinical programs and financial position [1][2]. Financial Overview - As of March 31, 2025, IDEAYA had approximately $1.05 billion in cash, cash equivalents, and marketable securities, down from $1.08 billion at the end of 2024, primarily due to operational cash usage [4][16]. - The company projects that its current cash balance will fund operations into 2029 based on its updated operating plan [17]. - The net loss for Q1 2025 was $72.2 million, a decrease from a net loss of $130.3 million in Q4 2024 [22]. Clinical Development Highlights - The darovasertib program received U.S. FDA breakthrough therapy designation, with over 300 patients enrolled in the registrational trial for HLA-A2-negative metastatic uveal melanoma (MUM) [2][4]. - The company is targeting a median progression-free survival (PFS) readout by the end of 2025 to enable a potential accelerated approval filing [4][5]. - IDEAYA is advancing multiple clinical programs, including IDE849 for lung cancer, IDE275 for MSI-high colorectal and endometrial cancer, and IDE397 for MTAP-deletion lung and urothelial cancer [2][4]. Research and Development Updates - The Phase 3 trial for darovasertib as neoadjuvant therapy for primary uveal melanoma is expected to enroll approximately 520 patients, with a focus on eye preservation and visual acuity outcomes [5][6]. - IDEAYA plans to present clinical data updates at medical conferences throughout 2025, including results from darovasertib and other pipeline candidates [4][5]. - The company has initiated a Phase 1 study for IDE849 in small cell lung cancer (SCLC) and is collaborating with Gilead to evaluate IDE397 in combination with Trodelvy® [12][19]. Corporate Developments - IDEAYA appointed Joshua Bleharski as Chief Financial Officer and Shanthakumar Tyavanagimatt as Senior Vice President of Technical Operations, enhancing its leadership team [21]. - The company formed a collaboration with ATTMOS to develop a computational platform for small molecule discovery, aiming to unlock oncology targets [21].

SOUTH SAN FRANCISCO, Calif., April 28, 2025 /PRNewswire/ -- IDEAYA Biosciences, Inc. (NASDAQ: IDYA), a precision medicine oncology company committed to the discovery and development of targeted therapeutics, announced its participation in the upcoming investor relations events.Barclays Hosted: Peter Lawson's Catalyst & Key Debate Calls & Investor 1x1'sThursday, May 8th, 2025 at 11:00 AM ET Fireside chat with Yujiro S. Hata, President and Chief Executive Officer, hosted by Peter Lawson, D.Phil., Managing Dir ...

IDEAYA Biosciences (NASDAQ: IDYA ) is a developmental biotech I covered once back in mid-2024, although my impression at the time was that although they were generating interesting data with an interesting premise, they were valued a bit too highI have my PhD in biochemistry and have worked for years analyzing clinical trials and biotech companies. It is my passion to educate everyone possible on the science behind the businesses that we invest in, and it's my mission to help you do your due diligence and n ...

Core Insights - IDEAYA Biosciences announced a successful FDA Type D meeting regarding the Phase 3 trial design for darovasertib as a neoadjuvant therapy for primary uveal melanoma (UM) [1][2] - The trial aims to assess safety and efficacy with primary endpoints focused on eye preservation and vision loss, alongside secondary endpoints related to Event-Free Survival (EFS) [2][6] Company Overview - IDEAYA Biosciences is a precision medicine oncology company dedicated to developing targeted therapeutics through molecular diagnostics [8] - The company integrates capabilities in identifying translational biomarkers with drug discovery to optimize patient selection for its therapies [8] Drug Development Details - Darovasertib is a selective protein kinase C (PKC) inhibitor targeting both primary and metastatic UM [3] - The drug has received Breakthrough Therapy Designation and Fast Track designation from the FDA for its use in neoadjuvant therapy and in combination with crizotinib for metastatic UM [3] Phase 3 Trial Design - The Phase 3 trial is projected to enroll approximately 520 patients, randomized in a 2:1 ratio between darovasertib and control [5][6] - Two cohorts will be included: 120 enucleation-eligible UM patients and 400 plaque brachytherapy (PB) eligible UM patients [5][6] Clinical Endpoints - Primary endpoints include eye preservation rate for enucleation patients and vision loss for PB patients, with no detriment to EFS as a secondary endpoint [6][7] - Additional secondary endpoints will assess overall response rate, macular edema, and vision loss metrics [7] Regulatory Pathway - The company plans to initiate the Phase 3 trial in the first half of 2025, with potential for earlier regulatory submission of enucleation cohort data [4][11]

Core Insights - IDEAYA Biosciences has initiated a Phase 1/2 expansion clinical trial for IDE397, a potential first-in-class MAT2A inhibitor, in combination with Gilead's Trodelvy for treating MTAP-deletion urothelial cancer based on preliminary safety and efficacy data [1][10]. Company Overview - IDEAYA Biosciences is focused on precision medicine in oncology, aiming to discover and develop targeted therapeutics using molecular diagnostics to identify patient populations that would benefit most from its therapies [8]. Clinical Development - The combination of IDE397 and Trodelvy is being explored due to the high unmet medical need in MTAP-deletion urothelial cancer, where no approved therapies currently exist [3]. - The prevalence of MTAP-deletion in urothelial cancer is estimated to be around 26% [2][10]. - A clinical program update regarding the IDE397 and Trodelvy combination is expected in 2025, alongside other studies for IDE397 as a monotherapy in MTAP-deletion non-small cell lung cancer (NSCLC) and urothelial cancer [5]. Collaboration and Rights - IDEAYA and Gilead retain commercial rights to their respective compounds under a clinical study collaboration and supply agreement, with IDEAYA acting as the study sponsor [6].

Recently, I got a complaint from a frustrated reader who pointed out that since my bullish December coverage of Ideaya Biosciences, Inc. (NASDAQ: IDYA ), the stock has gone down relentlessly and is now down ~50%. A numberAbout the TPT serviceThanks for reading. At the Total Pharma Tracker, we offer the following:-Our Android app and website features a set of tools for DIY investors, including a work-in-progress software where you can enter any ticker and get extensive curated research material. For investor ...

SOUTH SAN FRANCISCO, Calif., April 1, 2025 /PRNewswire/ -- IDEAYA Biosciences, Inc. (NASDAQ: IDYA), a precision medicine oncology company committed to the discovery and development of targeted therapeutics, announced its participation in the upcoming investor relations events. About IDEAYA Biosciences IDEAYA is a precision medicine oncology company committed to the discovery and development of targeted therapeutics for patient populations selected using molecular diagnostics. IDEAYA's approach integrates ca ...

SOUTH SAN FRANCISCO, Calif., March 31, 2025 /PRNewswire/ -- IDEAYA Biosciences, Inc. (NASDAQ: IDYA), a precision medicine oncology company committed to the discovery and development of targeted therapeutics, today announced that the U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy designation (BTD) for darovasertib, a potential first-in-class protein kinase C (PKC) inhibitor, for the neoadjuvant treatment of adult patients with primary uveal melanoma (UM) for whom enucleation has bee ...