Core Viewpoint - Servier and IDEAYA Biosciences have entered into an exclusive license agreement for darovasertib, a treatment for uveal melanoma, granting Servier regulatory and commercial rights outside the United States while IDEAYA retains rights in the U.S. [1][7] Company Overview - Servier is an independent international pharmaceutical group focused on delivering transformative therapies and has a strong commitment to oncology, allocating nearly 70% of its R&D budget to this field [10][12] - IDEAYA Biosciences specializes in precision medicine for oncology, focusing on the discovery and development of targeted therapies aligned with genetic drivers of cancer [14] Product Development - Darovasertib is a selective protein kinase C (PKC) inhibitor aimed at treating primary and metastatic uveal melanoma, which is a rare and aggressive form of eye cancer [1][5] - The drug has received Breakthrough Therapy Designation and Fast Track designation from the US FDA, indicating its potential as a significant treatment option [6] Financial Terms of the Agreement - IDEAYA will receive an upfront payment of $210 million, with potential additional payments of up to $320 million based on regulatory and commercial milestones, plus double-digit royalties on net sales outside the U.S. [7][8] Clinical Trials - Darovasertib is currently undergoing multiple global clinical trials, including a Phase 2/3 trial in combination with crizotinib and a Phase 3 trial evaluating it as a monotherapy [4][6] - A global Phase 3 randomized clinical trial is planned for 2026 to assess adjuvant darovasertib in primary uveal melanoma patients [4]

Core Insights - IDEAYA Biosciences announced that an abstract from its Phase 1/2 trial of darovasertib combined with crizotinib for first-line metastatic uveal melanoma has been accepted for oral presentation at the 2025 Society for Melanoma Research Congress [1][2] - The presentation will include data from over 40 patients, marking the first reported median overall survival data for the combination treatment in this indication [1][2] Company Overview - IDEAYA Biosciences is focused on precision medicine in oncology, aiming to discover, develop, and commercialize transformative cancer therapies [2] - The company integrates small-molecule drug discovery, structural biology, and bioinformatics to identify and validate translational biomarkers for developing targeted therapies [2] - IDEAYA has a pipeline that emphasizes synthetic lethality and antibody-drug conjugates for molecularly defined solid tumor indications, with a mission to enhance clinical outcomes for cancer patients [2]

Group 1 - IDEAYA Biosciences, Inc. is participating in several upcoming investor relations events, including the Cantor Global Healthcare Conference on September 3, 2025, and the Morgan Stanley 23rd Annual Global Healthcare Conference on September 9, 2025 [1][2] - The company will host an R&D Day on September 8, 2025, to share clinical data updates, outline upcoming catalysts, and review its long-term portfolio strategy [1][6] - Key opinion leader Dr. Arun D. Singh will participate in the R&D Day, providing insights alongside the company's leadership team [6] Group 2 - IDEAYA is focused on precision medicine in oncology, aiming to discover and develop targeted therapies for cancer [3] - The company integrates small-molecule drug discovery, structural biology, and bioinformatics to develop tailored therapies aligned with genetic disease drivers [3] - IDEAYA has a pipeline that includes product candidates focused on synthetic lethality and antibody-drug conjugates for molecularly defined solid tumor indications [3]

Core Insights - IDEAYA Biosciences, Inc. is hosting an in-person R&D Day on September 8, 2025, in New York to celebrate its 10-Year Anniversary and discuss its progress and future growth strategy [1][2]. Company Overview - IDEAYA is a precision medicine oncology company focused on discovering and developing targeted therapeutics for cancer, integrating small-molecule drug discovery, structural biology, and bioinformatics [6]. R&D Day Agenda - The R&D Day will feature presentations on new clinical data for darovasertib in neoadjuvant uveal melanoma, IDE849 (DLL3 TOP1 ADC), and IDE397 (MAT2A) [2][8]. - Dr. Arun D. Singh from the Cleveland Clinic will present data from the Phase 2 trial of darovasertib and discuss the Phase 3 OptimUM-10 trial [4]. - The agenda includes discussions on various drug candidates, including initial Phase 1 clinical data for IDE397/Trodelvy combination in MTAP-deletion urothelial cancer and the application of AI/ML in discovery capabilities [8].

Group 1: Core Insights - Goldman Sachs' latest report focuses on "2Q25 EPS updates," analyzing biotech companies such as Amylyx (AMLX.US), CG Oncology (CGON.US), GPCR (GPCR.US), and Ideaya Biosciences (IDYA.US), concluding that operational data largely meets expectations with minor adjustments to target prices due to cash flow or clinical milestones [1] Group 2: Amylyx (AMLX.US) - In Q2, Amylyx reported operating expenses of approximately $43 million, slightly above market consensus of $41 million and Goldman Sachs' estimate of $40 million, primarily due to higher R&D costs of $27 million compared to the expected range of $22 million to $25 million [2] - The management reiterated the timeline for the Phase III clinical trial for post-bariatric hypoglycemia (PBH), aiming for enrollment completion in 2025, data readout in the first half of 2026, and potential market entry in 2027, with an estimated patient population of around 160,000 [2] - Goldman Sachs maintains a "Buy" rating with a target price of $10 [2] Group 3: CG Oncology (CGON.US) - CG Oncology's BOND-003 Phase III trial data showed a complete response rate of 75.5% for its bladder cancer gene therapy, with 12-month and 24-month sustained response rates of 50.7% and 42.3%, respectively [3] - The company has $661 million in cash, sufficient to support operations until mid-2028, and Goldman Sachs maintains a "Buy" rating with minor model adjustments [3] Group 4: GPCR (GPCR.US) - GPCR's Q2 R&D expenses were approximately $54 million, significantly higher than market expectations of $36 million and Goldman Sachs' estimate of $44 million, attributed to workforce expansion and increased trial costs [4] - The company has $787 million in cash, expected to last until 2027, and plans to read out Phase 2b ACCESS data in 2025 [4] Group 5: Ideaya Biosciences (IDYA.US) - Ideaya reported Q2 R&D expenses of about $74 million, slightly above market expectations of $71 million and Goldman Sachs' estimate of $68 million, with cash reserves of $992 million projected to last until 2029 [5] - The core pipeline includes darovasertib in combination with crizotinib for HLA-A2 negative metastatic uveal melanoma, with Phase 2/3 results expected by year-end [5] Group 6: Terns Pharmaceuticals (TERN.US) and RNA (RNA.US) - Terns Pharmaceuticals plans to release preliminary data for its leukemia drug TERN-701 and obesity drug TERN-601 in Q4 2025, with cash reserves of $315 million sufficient until 2028 [6] - RNA has signed a manufacturing agreement with Lonza to ensure product supply stability from 2026 to 2028, with BLA submissions expected for its treatments by the end of 2025 and mid-2026 [6] Group 7: AI in Biotech - Goldman Sachs emphasizes the core role of biotechnology R&D, highlighting collaborations with institutions like OpenAI to drive innovation, while also focusing on the pricing potential of rare disease drugs and opportunities for indication expansion [7] Group 8: Overall Industry Outlook - The biotech sector is expected to see over 15 key clinical data readouts from late 2025 to early 2026, with a focus on companies like AMLX, CGON, and RNA for their potential breakthroughs [8] - Despite some companies facing increased short-term losses due to R&D spending, pipeline progress remains in line with expectations, and cash flow is generally secure [8]

[PART I—FINANCIAL INFORMATION](index=4&type=section&id=PART%20I%E2%80%94FINANCIAL%20INFORMATION) Presents the unaudited condensed financial statements and management's discussion and analysis of financial condition and results of operations [Item 1. Financial Statements (Unaudited)](index=4&type=section&id=Item%201.%20Financial%20Statements%20(Unaudited)) Presents the unaudited condensed financial statements, including key financial statements and detailed accounting notes [Condensed Balance Sheets](index=4&type=section&id=Condensed%20Balance%20Sheets) Details the company's financial position, presenting assets, liabilities, and stockholders' equity at specific dates | Metric | June 30, 2025 (in thousands) | December 31, 2024 (in thousands) | Change (in thousands) | % Change | | :--------------------------------- | :----------------------------- | :------------------------------- | :-------------------- | :------- | | Cash and cash equivalents | $114,645 | $84,378 | $30,267 | 35.87% | | Short-term marketable securities | $555,093 | $591,941 | $(36,848) | -6.22% | | Total current assets | $685,602 | $689,713 | $(4,111) | -0.60% | | Total assets | $1,041,270 | $1,124,091 | $(82,821) | -7.37% | | Total current liabilities | $55,338 | $46,071 | $9,267 | 20.11% | | Total liabilities | $81,617 | $64,944 | $16,673 | 25.67% | | Total stockholders' equity | $959,653 | $1,059,147 | $(99,494) | -9.39% | [Condensed Statements of Operations and Comprehensive Loss](index=5&type=section&id=Condensed%20Statements%20of%20Operations%20and%20Comprehensive%20Loss) Details the company's financial performance, including revenues, expenses, net loss, and comprehensive loss over periods | Metric (in thousands) | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2024 | Change (3M) | % Change (3M) | | :-------------------- | :------------------------------- | :------------------------------- | :---------- | :-------------- | | Research and development | $74,226 | $54,533 | $19,693 | 36.11% | | General and administrative | $14,580 | $10,394 | $4,186 | 40.27% | | Total operating expenses | $88,806 | $64,927 | $23,879 | 36.78% | | Loss from operations | $(88,806) | $(64,927) | $(23,879) | 36.78% | | Interest income and other income, net | $11,315 | $12,155 | $(840) | -6.91% | | Net loss | $(77,491) | $(52,772) | $(24,719) | 46.84% | | Comprehensive loss | $(77,555) | $(53,265) | $(24,290) | 45.60% | | Net loss per common share, basic and diluted | $(0.88) | $(0.68) | $(0.20) | 29.41% | | Weighted-average common shares outstanding | 88,472,197 | 77,962,730 | 10,509,467 | 13.48% | | Metric (in thousands) | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | Change (6M) | % Change (6M) | | :-------------------- | :----------------------------- | :----------------------------- | :---------- | :-------------- | | Research and development | $145,112 | $97,338 | $47,774 | 49.08% | | General and administrative | $28,083 | $18,606 | $9,477 | 50.94% | | Total operating expenses | $173,195 | $115,944 | $57,251 | 49.38% | | Loss from operations | $(173,195) | $(115,944) | $(57,251) | 49.38% | | Interest income and other income, net | $23,526 | $23,600 | $(74) | -0.31% | | Net loss | $(149,669) | $(92,344) | $(57,325) | 62.08% | | Comprehensive loss | $(148,960) | $(94,322) | $(54,638) | 57.93% | | Net loss per common share, basic and diluted | $(1.69) | $(1.21) | $(0.48) | 39.67% | | Weighted-average common shares outstanding | 88,414,586 | 76,535,607 | 11,878,979 | 15.52% | [Condensed Statements of Stockholders' Equity](index=6&type=section&id=Condensed%20Statements%20of%20Stockholders'%20Equity) Outlines changes in stockholders' equity, reflecting net loss, stock issuances, and stock-based compensation - Total stockholders' equity decreased from **$1.06 billion** as of December 31, 2024, to **$959.7 million** as of June 30, 2025, primarily due to a net loss of **$149.7 million**, partially offset by proceeds from at-the-market offerings, stock option exercises, ESPP purchases, and stock-based compensation[16](index=16&type=chunk)[24](index=24&type=chunk) | Item (in thousands) | Six Months Ended June 30, 2025 | | :------------------ | :----------------------------- | | Net loss | $(149,669) | | Issuance of common stock (ATM) | $24,997 | | Stock-based compensation | $22,105 | | Other comprehensive income | $709 | | Total Stockholders' Equity (June 30, 2025) | $959,653 | [Condensed Statements of Cash Flows](index=8&type=section&id=Condensed%20Statements%20of%20Cash%20Flows) Summarizes cash inflows and outflows from operating, investing, and financing activities over specific periods | Cash Flow Activity (in thousands) | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | Change | | :-------------------------------- | :----------------------------- | :----------------------------- | :----- | | Net cash used in operating activities | $(122,816) | $(76,695) | $(46,121) | | Net cash provided by (used in) investing activities | $125,735 | $(285,414) | $411,149 | | Net cash provided by financing activities | $27,348 | $388,294 | $(360,946) | | Net increase in cash, cash equivalents and restricted cash | $30,267 | $26,185 | $4,082 | | Cash, cash equivalents and restricted cash, at end of period | $115,450 | $183,960 | $(68,510) | - Net cash used in operating activities increased by **$46.1 million**, primarily due to a higher net loss. Investing activities shifted from a net use of **$285.4 million** in H1 2024 to a net provision of **$125.7 million** in H1 2025, driven by a significant increase in maturities of marketable securities. Financing activities saw a substantial decrease in cash provided, from **$388.3 million** in H1 2024 to **$27.3 million** in H1 2025, mainly due to lower net proceeds from at-the-market offerings[27](index=27&type=chunk)[209](index=209&type=chunk)[211](index=211&type=chunk)[213](index=213&type=chunk) [Notes to Condensed Financial Statements (Unaudited)](index=9&type=section&id=Notes%20to%20Condensed%20Financial%20Statements%20(Unaudited)) Offers detailed explanations and additional information supporting the condensed financial statements and accounting policies [1. Organization](index=10&type=section&id=1.%20Organization) Describes the company's business, incorporation details, recent financing activities, and financial position - IDEAYA Biosciences, Inc. is a precision medicine oncology company focused on discovery, development, and commercialization of cancer therapies, incorporated in Delaware in June 2015[29](index=29&type=chunk) - The Company completed an underwritten public follow-on offering on July 11, 2024, raising approximately **$283.8 million** in net proceeds from 8,355,714 shares and pre-funded warrants[30](index=30&type=chunk) - Under an at-the-market offering program (January 2024 Sales Agreement), the Company sold 984,000 shares for **$25.0 million** net proceeds during the six months ended June 30, 2025, with **$156.6 million** remaining available[31](index=31&type=chunk)[32](index=32&type=chunk) - The Company has an accumulated deficit of **$772.5 million** as of June 30, 2025, and expects continued operating losses. Cash, cash equivalents, and marketable securities totaled approximately **$991.9 million** as of June 30, 2025, believed to be sufficient for at least 12 months of planned operations[34](index=34&type=chunk)[35](index=35&type=chunk)[36](index=36&type=chunk) [2. Summary of Significant Accounting Policies](index=11&type=section&id=2.%20Summary%20of%20Significant%20Accounting%20Policies) Outlines key accounting principles and methods used in financial statement preparation, including estimates and new pronouncements - The condensed financial statements are prepared in accordance with GAAP and SEC rules for interim reporting, with certain disclosures condensed or omitted compared to annual statements[37](index=37&type=chunk)[38](index=38&type=chunk) - Management makes estimates and assumptions affecting reported amounts, including useful lives of assets, lease discount rates, R&D accruals, revenue recognition, stock-based compensation, and income taxes[40](index=40&type=chunk) - The Company operates in a highly competitive, dynamic biotechnology industry, facing risks related to product development, regulatory approval, intellectual property, key personnel, and the need for additional financing[41](index=41&type=chunk)[42](index=42&type=chunk)[43](index=43&type=chunk)[44](index=44&type=chunk) - The Company adopted ASU 2023-07 (Segment Reporting) for the annual report beginning January 1, 2024, and interim periods beginning January 1, 2025, resulting in additional disclosures in Note 13[50](index=50&type=chunk) - New accounting pronouncements not yet adopted include ASU 2023-06 (Disclosure Improvements), ASU 2023-09 (Income Tax Disclosures), and ASU 2024-03/2025-01 (Expense Disaggregation Disclosures), which are currently being evaluated for their impact[52](index=52&type=chunk)[53](index=53&type=chunk)[54](index=54&type=chunk)[55](index=55&type=chunk) [3. Fair Value Measurement and Marketable Securities](index=14&type=section&id=3.%20Fair%20Value%20Measurement%20and%20Marketable%20Securities) Details valuation methods for financial instruments and the composition of marketable securities, including fair values and maturities - The Company applies fair value accounting using a three-tier hierarchy (Level 1, 2, 3) based on observable inputs, with Level 2 inputs primarily used for U.S. government securities, corporate bonds, and commercial paper, and Level 1 for money market funds[56](index=56&type=chunk)[57](index=57&type=chunk)[58](index=58&type=chunk)[59](index=59&type=chunk) | Asset Type (in thousands) | Fair Value as of June 30, 2025 | | :------------------------ | :----------------------------- | | U.S. government securities | $511,057 | | Corporate bonds | $348,227 | | Commercial paper | $37,582 | | Money market funds | $76,261 | | Cash | $18,742 | | Total fair value of assets | $991,869 | | Asset Type (in thousands) | Fair Value as of December 31, 2024 | | :------------------------ | :--------------------------------- | | U.S. government securities | $552,869 | | Corporate bonds | $363,135 | | Commercial paper | $89,122 | | Money market funds | $57,626 | | Cash | $19,399 | | Total fair value of assets | $1,082,151 | - All marketable securities as of June 30, 2025, and December 31, 2024, had a remaining maturity of less than three years. The Company determined that unrealized losses were not credit-related and does not intend to sell these securities before maturity[64](index=64&type=chunk)[65](index=65&type=chunk) [4. Balance Sheet Components](index=16&type=section&id=4.%20Balance%20Sheet%20Components) Breaks down key components of the balance sheet, including property and equipment, and accrued liabilities | Property and Equipment (in thousands) | June 30, 2025 | December 31, 2024 | | :---------------------------------- | :------------ | :---------------- | | Laboratory equipment | $14,637 | $13,513 | | Total property and equipment | $21,826 | $20,677 | | Less: Accumulated depreciation and amortization | $(13,007) | $(11,711) | | Property and equipment, net | $8,819 | $8,966 | - Depreciation and amortization expense for property and equipment was **$0.7 million** for Q2 2025 (vs **$0.6 million** in Q2 2024) and **$1.3 million** for H1 2025 (vs **$1.2 million** in H1 2024)[66](index=66&type=chunk) | Accrued Liabilities (in thousands) | June 30, 2025 | December 31, 2024 | | :--------------------------------- | :------------ | :---------------- | | Accrued research and development expenses | $28,116 | $19,956 | | Accrued salaries and benefits | $6,860 | $8,233 | | Legal and professional fees | $2,146 | $1,213 | | Total accrued liabilities | $37,750 | $30,352 | [5. Operating Leases](index=17&type=section&id=5.%20Operating%20Leases) Details the company's operating lease agreements, including new leases, future payment obligations, and associated costs - The Company entered into a 120-month lease for 44,000 sq ft of lab/office space in South San Francisco in June 2023, commencing August 2024, with an option to extend for two five-year periods[68](index=68&type=chunk) - In May 2024, the South San Francisco lease was amended to add 11,321 sq ft, commencing January 2025. A separate lease for 5,700 sq ft in San Diego commenced December 2023 and expires March 2028[69](index=69&type=chunk)[70](index=70&type=chunk) | Operating Lease Liabilities (in thousands) | As of June 30, 2025 | | :--------------------------------------- | :------------------ | | Total future minimum lease payments | $46,552 | | Less: imputed interest | $(19,955) | | Total operating lease liabilities | $26,597 | - Operating lease costs were **$1.2 million** for Q2 2025 (vs **$0.5 million** in Q2 2024) and **$2.5 million** for H1 2025 (vs **$1.0 million** in H1 2024). Variable lease costs were **$0.6 million** for Q2 2025 (vs **$0.4 million** in Q2 2024) and **$1.2 million** for H1 2025 (vs **$0.8 million** in H1 2024)[72](index=72&type=chunk)[73](index=73&type=chunk) [6. Commitments and Contingencies](index=18&type=section&id=6.%20Commitments%20and%20Contingencies) Addresses potential future obligations and legal matters, including litigation and indemnification arrangements - The Company may be involved in litigation but does not believe any current matters will materially adversely affect its financial position, results of operations, or cash flows as of June 30, 2025[75](index=75&type=chunk) - The Company enters into standard indemnification arrangements with vendors and clinical trial sites, but the maximum potential future payments are not determinable, and no related liability has been recorded[76](index=76&type=chunk) [7. Income Taxes](index=18&type=section&id=7.%20Income%20Taxes) Explains the company's income tax position, including tax provision absence due to losses and new tax legislation impact - No federal or state income tax provision was recorded for the three and six months ended June 30, 2025 and 2024, due to recurring net losses. A full valuation allowance is maintained against net deferred tax assets[77](index=77&type=chunk) - A California audit for 2020-2021 concluded with no proposed adjustments. Management is evaluating the impact of the 'One Big Beautiful Bill Act' (Tax Act) enacted in Q3 2025, but does not expect a material impact on tax expense or effective tax rate for the year[78](index=78&type=chunk)[79](index=79&type=chunk) [8. Common Stock](index=19&type=section&id=8.%20Common%20Stock) Details common stock structure, outstanding shares, recent offerings, and shares reserved for future issuance - As of June 30, 2025, the Company had **87,641,776** shares of common stock issued and outstanding, with **300,000,000** shares authorized. No dividends have been declared[16](index=16&type=chunk)[80](index=80&type=chunk) - The July 11, 2024, follow-on offering generated approximately **$283.8 million** in net proceeds from **8,355,714** common shares and **285,715** pre-funded warrants[81](index=81&type=chunk) | Issue Date | Expiration Date | Exercise Price per Share | Number of Shares subject to Outstanding Warrants | | :--------- | :-------------- | :----------------------- | :--------------------------------------------- | | July 11, 2024 | None | $0.0001 | 285,715 | | October 27, 2023 | None | $0.0001 | 319,150 | | April 27, 2023 | None | $0.0001 | 270,270 | - Warrants are classified as a component of Stockholders' Equity within Additional Paid-in-Capital, are immediately exercisable, and do not expire until fully exercised[83](index=83&type=chunk) | Reserved Common Stock for Future Issuance | June 30, 2025 | December 31, 2024 | | :---------------------------------------- | :------------ | :---------------- | | Exercise of outstanding options | 11,255,169 | 7,737,595 | | Shares available for grant (2019 Plan) | 2,774,703 | 1,910,589 | | Shares available for grant (2023 Inducement Plan) | 1,566,267 | 593,592 | | Shares available (ESPP) | 2,727,556 | 1,911,011 | | Pre-funded warrants outstanding | 875,135 | 875,135 | | Total | 19,198,830 | 13,027,922 | [9. Stock-Based Compensation](index=20&type=section&id=9.%20Stock-Based%20Compensation) Explains stock-based compensation plans, including share availability, expense recognition, and stock option activity - The 2023 Inducement Plan, amended in June 2024 and May 2025, increased shares available for issuance by **1,000,000** and **2,000,000** respectively, with **1,566,267** shares available as of June 30, 2025[85](index=85&type=chunk)[86](index=86&type=chunk)[87](index=87&type=chunk) - The 2019 Incentive Award Plan, with **2,774,703** shares available as of June 30, 2025, allows for annual increases and governs ISOs and NSOs for employees, directors, and consultants[88](index=88&type=chunk)[89](index=89&type=chunk)[90](index=90&type=chunk)[91](index=91&type=chunk) - The 2019 Employee Stock Purchase Plan (ESPP) allows eligible employees to purchase common stock via payroll deductions, with **2,727,556** shares available as of June 30, 2025. ESPP compensation expense was **$0.2 million** for Q2 2025 and **$0.4 million** for H1 2025[93](index=93&type=chunk)[94](index=94&type=chunk)[95](index=95&type=chunk) | Stock-Based Compensation Expense (in thousands) | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2024 | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | | :---------------------------------------------- | :------------------------------- | :------------------------------- | :----------------------------- | :----------------------------- | | Research and development | $7,131 | $5,900 | $13,152 | $9,683 | | General and administrative | $4,737 | $3,834 | $8,953 | $6,363 | | Total stock-based compensation expense | $11,868 | $9,734 | $22,105 | $16,046 | | Stock Options Activity | Shares (June 30, 2025) | Weighted Average Exercise Price | | :--------------------- | :--------------------- | :------------------------------ | | Balance, January 1, 2025 | 7,737,595 | $26.06 | | Options granted | 3,836,758 | $20.30 | | Options exercised | (105,777) | $14.60 | | Options canceled | (178,812) | $27.31 | | Options expired | (34,595) | $28.95 | | Balance, June 30, 2025 | 11,255,169 | $24.18 | | Exercisable as of June 30, 2025 | 4,374,507 | $21.36 | - The weighted-average grant-date fair value of options granted was **$14.02 per share** for H1 2025 (vs **$31.85** for H1 2024). Unrecognized stock-based compensation expense for stock options was **$118.8 million** as of June 30, 2025, to be recognized over a weighted-average period of **2.89 years**[98](index=98&type=chunk)[99](index=99&type=chunk) [10. Significant Agreements](index=23&type=section&id=10.%20Significant%20Agreements) Summarizes key collaboration, license, and clinical trial agreements, detailing terms, milestones, and financial implications - GSK Collaboration Agreement (June 2020): Collaboration on MAT2A, Pol Theta, and Werner Helicase programs. GSK paid **$100.0 million** upfront and **$20.0 million** in development/regulatory milestones as of June 30, 2025[105](index=105&type=chunk)[106](index=106&type=chunk) - Pol Theta Program (GSK): GSK leads clinical development of IDE705 (GSK101) and is responsible for all R&D costs. The Company earned **$7.0 million** in August 2023 for IND acceptance and has potential for **$10.0 million** upon Phase 1 dose expansion, up to **$465.0 million** in late-stage milestones, **$475.0 million** in commercial milestones, and tiered royalties[107](index=107&type=chunk)[108](index=108&type=chunk)[109](index=109&type=chunk)[110](index=110&type=chunk) - Werner Helicase Program (GSK): GSK leads clinical development of IDE275 (GSK959), with IDEAYA responsible for **20%** of R&D costs. The Company earned **$7.0 million** in October 2024 for IND acceptance and has potential for **$10.0 million** upon Phase 1 dose expansion, up to **$465.0 million** in late-stage milestones, **$475.0 million** in commercial milestones, **50%** of U.S. net profits, and tiered royalties on global non-U.S. net sales[111](index=111&type=chunk)[112](index=112&type=chunk)[113](index=113&type=chunk)[114](index=114&type=chunk) - Novartis License Agreement (September 2018): Exclusive worldwide license for darovasertib (PKC inhibitor) for GNAQ/GNA11 mutated cancers. FDA granted Breakthrough Therapy designation for darovasertib in primary uveal melanoma in March 2025, triggering a **$1.0 million** milestone payment to Novartis in April 2025. Potential for up to **$8.0 million** in additional clinical/regulatory milestones and **$20.0 million** in commercial milestones, plus mid to high single-digit tiered royalties[115](index=115&type=chunk)[116](index=116&type=chunk)[117](index=117&type=chunk)[118](index=118&type=chunk)[119](index=119&type=chunk) - Pfizer Clinical Trial Collaboration and Supply Agreements (multiple): Agreements for Pfizer to supply binimetinib and crizotinib for combination studies with darovasertib in GNAQ/GNA11 mutated tumors and MUM. The Company is the sponsor and pays for studies, while Pfizer provides compounds at no cost (or lump-sum cost for additional crizotinib). Joint ownership of clinical data and inventions[120](index=120&type=chunk)[121](index=121&type=chunk)[122](index=122&type=chunk)[123](index=123&type=chunk)[124](index=124&type=chunk)[125](index=125&type=chunk) - Cancer Research UK and University of Manchester License Agreement: Exclusive worldwide license for PARG inhibitors. The Company paid a **£250,000** option exercise fee in January 2022 and incurred **£750,000** in milestone payments in April 2023 for IDE161 Phase 1/2 clinical trial. Potential for up to **£18.75 million** in additional development/regulatory milestones and low single-digit tiered royalties[126](index=126&type=chunk)[127](index=127&type=chunk)[128](index=128&type=chunk)[129](index=129&type=chunk)[130](index=130&type=chunk) - Amgen Clinical Trial Collaboration and Supply Agreement (July 2022): Evaluated IDE397 with AMG 193 (PRMT5 inhibitor) in MTAP-null solid tumors. Mutually agreed to wind down the combination study in February 2025[131](index=131&type=chunk) - Gilead Clinical Study Collaboration and Supply Agreement (November 2023 & February 2025): Evaluates IDE397 in combination with Trodelvy (Trop-2 ADC) in MTAP-deletion urothelial cancer and NSCLC. The Company is the sponsor and bears study costs, while Gilead supplies Trodelvy. Each party retains commercial rights to its compounds[132](index=132&type=chunk)[133](index=133&type=chunk)[134](index=134&type=chunk) - Merck Clinical Trial Collaboration and Supply Agreement (March 2024): Evaluates IDE161 with KEYTRUDA (anti-PD-1 therapy) in MSI-High and MSS endometrial cancer. The Company sponsors and pays for the study, Merck provides KEYTRUDA at no cost. Joint ownership of clinical data, each party retains commercial rights[135](index=135&type=chunk)[136](index=136&type=chunk) - Biocytogen Option and License Agreement (July 2024): Option for exclusive worldwide license for B7H3/PTK7 TOP1i-payload BsADC program. Paid **$6.5 million** upfront/exercise fee. Targeting IND submission for IDE034 in H2 2025. Potential for **$400.0 million** in total milestones (up to **$100.0 million** development/regulatory) and low to mid single-digit royalties[138](index=138&type=chunk)[139](index=139&type=chunk) - Hengrui Pharma License Agreement (December 2024): Exclusive worldwide license (outside Greater China) for IDE849 (DLL3 TOP1i ADC). Received U.S. IND clearance in April 2025 for Phase 1 trial in solid tumors. Hengrui Pharma eligible for **$1.045 billion** in total payments (**$75.0 million** upfront, up to **$200.0 million** development/regulatory milestones) and mid-single to low-double digit royalties[140](index=140&type=chunk)[141](index=141&type=chunk) [11. Revenue Recognition](index=29&type=section&id=11.%20Revenue%20Recognition) Explains the company's revenue recognition policies, particularly for collaboration agreements and milestone payments - The Company recognized no revenue for the three and six months ended June 30, 2025 and 2024[144](index=144&type=chunk) - All performance obligations related to the upfront payment under the GSK Collaboration Agreement were completed as of December 31, 2023. Future collaboration revenue is contingent on additional milestone payments as they are earned[145](index=145&type=chunk)[171](index=171&type=chunk) - Development and regulatory milestones from the GSK Collaboration Agreement were fully constrained at inception due to uncertainty, and are recognized only when earned. The Company earned **$7.0 million** from GSK in August 2023 for IDE705 IND acceptance and **$7.0 million** in October 2024 for IDE275 IND acceptance[146](index=146&type=chunk)[147](index=147&type=chunk)[150](index=150&type=chunk) [12. Net Loss Per Share Attributable to Common Stockholders](index=30&type=section&id=12.%20Net%20Loss%20Per%20Share%20Attributable%20to%20Common%20Stockholders) Presents the calculation of net loss per common share, including basic and diluted figures, and treatment of dilutive securities | Metric | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2024 | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | | :---------------------------------------- | :------------------------------- | :------------------------------- | :----------------------------- | :----------------------------- | | Net loss attributable to common stockholders (in thousands) | $(77,491) | $(52,772) | $(149,669) | $(92,344) | | Weighted-average common shares outstanding, basic and diluted | 88,472,197 | 77,962,730 | 88,414,586 | 76,535,607 | | Net loss per share, basic and diluted | $(0.88) | $(0.68) | $(1.69) | $(1.21) | - Potentially dilutive securities, including **11,255,169** options to purchase common stock as of June 30, 2025, were excluded from diluted net loss per share computation because their inclusion would have been antidilutive[154](index=154&type=chunk) [13. Segment Information](index=31&type=section&id=13.%20Segment%20Information) Describes the company's operating segments and provides disaggregated research and development expenses by program - The Company operates as a single operating and reportable segment focused on oncology-focused precision medicine research and development. The President and CEO serves as the chief operating decision maker (CODM)[155](index=155&type=chunk) | Disaggregated R&D Expenses (in thousands) | Three Months Ended June 30, 2025 | Three Months Ended June 30, 2024 | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | | :---------------------------------------- | :------------------------------- | :------------------------------- | :----------------------------- | :----------------------------- | | Darovasertib | $25,091 | $14,895 | $48,109 | $25,764 | | IDE397 | $3,790 | $4,064 | $7,531 | $6,991 | | IDE161 | $1,568 | $2,059 | $4,016 | $4,754 | | Personnel related and stock-based compensation | $17,201 | $14,534 | $33,015 | $26,789 | | Other research and development expenses | $26,576 | $18,981 | $52,441 | $33,040 | | Total research and development expenses | $74,226 | $54,533 | $145,112 | $97,338 | [14. Subsequent Events](index=31&type=section&id=14.%20Subsequent%20Events) Reports on events occurring after the balance sheet date but before financial statements were issued, requiring disclosure - The Company evaluated all subsequent events from June 30, 2025, through the filing date of this Quarterly Report on Form 10-Q and found no significant events requiring recognition or disclosure[158](index=158&type=chunk) [Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations](index=32&type=section&id=Item%202.%20Management's%20Discussion%20and%20Analysis%20of%20Financial%20Condition%20and%20Results%20of%20Operations) Provides management's perspective on financial condition and results, focusing on pipeline, operating expenses, liquidity, and capital [Overview](index=32&type=section&id=Overview) Introduces the company's business model, clinical pipeline, upcoming milestones, and overall financial position - IDEAYA Biosciences is a precision medicine oncology company focused on discovering, developing, and commercializing transformative therapies for cancer, utilizing small-molecule drug discovery, structural biology, and bioinformatics[160](index=160&type=chunk) - The clinical pipeline includes six potential first-in-class product candidates: Darovasertib (PKC inhibitor for uveal melanoma), IDE397 (MAT2A inhibitor for MTAP-deletion solid tumors), and IDE849 (DLL3 TOP1i ADC for SCLC, NETs, and other DLL3 expressing tumors)[161](index=161&type=chunk)[162](index=162&type=chunk) - Key upcoming data readouts include median PFS data for darovasertib in 1L metastatic UM by end of 2025, initial safety and visual benefit data for neoadjuvant darovasertib in primary UM at R&D Day (Sept 8th), and clinical efficacy/safety data for IDE849 in SCLC at IASLC 2025 (Sept 6-9)[161](index=161&type=chunk) - Three preclinical programs are advancing towards IND submissions: IDE892 (MTA-cooperative PRMT5 inhibitor) in mid-2025, IDE034 (B7H3/PTK7 bispecific TOP1i ADC) in Q4 2025, and IDE574 (KAT6/7 dual inhibitor) in Q4 2025[168](index=168&type=chunk) - The Company had **$991.9 million** in cash, cash equivalents, and marketable securities as of June 30, 2025, expected to fund operations for at least 12 months[164](index=164&type=chunk)[169](index=169&type=chunk) - Net losses were **$149.7 million** for H1 2025 (vs **$92.3 million** for H1 2024), with an accumulated deficit of **$772.5 million** as of June 30, 2025. Significant operating losses are expected to continue and increase[165](index=165&type=chunk)[166](index=166&type=chunk) [Components of Operating Results](index=34&type=section&id=Components%20of%20Operating%20Results) Defines the key revenue and expense categories that constitute the company's operating results, including R&D and G&A - The Company has not generated product sales revenue and does not expect to until regulatory approval and commercialization of product candidates. Revenue consists exclusively of collaboration revenue from the GSK Collaboration Agreement, which fluctuates based on milestone payments[171](index=171&type=chunk) - Research and development expenses include payroll, personnel-related costs, stock-based compensation, fees to CMOs/CROs for manufacturing and clinical activities (darovasertib, IDE397, IDE849, IDE161, IDE275/GSK959, IDE705/GSK101), laboratory supplies, product licenses, and allocated overhead[172](index=172&type=chunk) - General and administrative expenses primarily cover payroll, personnel-related costs, stock-based compensation, professional fees (legal, patent, consulting, accounting, tax), allocated overhead, and other operating expenses[179](index=179&type=chunk) - Interest income and other income, net, primarily consists of interest earned on cash, cash equivalents, and marketable securities[181](index=181&type=chunk) [Results of Operations](index=38&type=section&id=Results%20of%20Operations) Analyzes financial performance over specific periods, detailing changes in R&D, G&A expenses, and net loss | Metric (in thousands) | Three Months Ended June 30, 2025 | Three Months Ended March 31, 2025 | Change | % Change | | :-------------------- | :------------------------------- | :-------------------------------- | :----- | :------- | | Research and development | $74,226 | $70,886 | $3,340 | 5% | | General and administrative | $14,580 | $13,503 | $1,077 | 8% | | Loss from operations | $(88,806) | $(84,389) | $(4,417) | 5% | | Interest income and other income, net | $11,315 | $12,211 | $(896) | -7% | | Net loss | $(77,491) | $(72,178) | $(5,313) | 7% | - Research and development expenses increased by **$3.3 million (5%)** in Q2 2025 compared to Q1 2025, driven by personnel-related expenses and fees to CROs, CMOs, and consultants[184](index=184&type=chunk) - General and administrative expenses increased by **$1.1 million (8%)** in Q2 2025 compared to Q1 2025, primarily due to personnel-related expenses[185](index=185&type=chunk) | Metric (in thousands) | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | Change | % Change | | :-------------------- | :----------------------------- | :----------------------------- | :----- | :------- | | Research and development | $145,112 | $97,338 | $47,774 | 49% | | General and administrative | $28,083 | $18,606 | $9,477 | 51% | | Loss from operations | $(173,195) | $(115,944) | $(57,251) | 49% | | Interest income and other income, net | $23,526 | $23,600 | $(74) | -0% | | Net loss | $(149,669) | $(92,344) | $(57,325) | 62% | - Research and development expenses increased by **$47.8 million (49%)** in H1 2025 compared to H1 2024, mainly due to increased fees to CROs, CMOs, and consultants (**$37.4 million**), personnel-related expenses (**$6.2 million**), and laboratory supplies/facilities costs (**$4.2 million**)[188](index=188&type=chunk) - General and administrative expenses increased by **$9.5 million (51%)** in H1 2025 compared to H1 2024, primarily due to personnel-related expenses (**$5.2 million**) and consulting/legal patent expenses (**$4.3 million**)[189](index=189&type=chunk) [Liquidity and Capital Resources; Plan of Operations](index=39&type=section&id=Liquidity%20and%20Capital%20Resources%3B%20Plan%20of%20Operations) Discusses the company's financial resources, funding sources, future capital needs, and cash flow activities - The Company's operations are funded primarily by common stock sales and GSK collaboration payments. As of June 30, 2025, cash, cash equivalents, and marketable securities totaled approximately **$991.9 million**[191](index=191&type=chunk) - During H1 2025, the Company sold **984,000** shares for **$25.0 million** net proceeds under its at-the-market offering program, with **$156.6 million** remaining available[193](index=193&type=chunk) - The Company had net losses of **$149.7 million** for H1 2025 and an accumulated deficit of **$772.5 million** as of June 30, 2025. Existing capital is expected to fund operations for at least the next 12 months[195](index=195&type=chunk) - Additional capital will be required for future development and commercialization, potentially through equity/debt financings or collaborations. Failure to raise capital could lead to delays or termination of development programs[197](index=197&type=chunk)[199](index=199&type=chunk) - Material cash requirements include operating lease obligations, with total future minimum lease payments of **$46.6 million** as of June 30, 2025[71](index=71&type=chunk)[201](index=201&type=chunk)[202](index=202&type=chunk)[203](index=203&type=chunk) | Cash Flow Summary (in thousands) | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | | :------------------------------- | :----------------------------- | :----------------------------- | | Net cash used in operating activities | $(122,816) | $(76,695) | | Net cash provided by (used in) investing activities | $125,735 | $(285,414) | | Net cash provided by financing activities | $27,348 | $388,294 | | Net increase in cash, cash equivalents and restricted cash | $30,267 | $26,185 | [Critical Accounting Policies](index=43&type=section&id=Critical%20Accounting%20Policies) Highlights accounting policies requiring significant management judgment and estimates, crucial to financial statements - The financial statements are prepared under U.S. GAAP, requiring management estimates and assumptions for assets, liabilities, revenue, and expenses. No material changes to critical accounting policies were reported for H1 2025 compared to the 2024 Annual Report on Form 10-K[215](index=215&type=chunk)[216](index=216&type=chunk) [Item 3. Quantitative and Qualitative Disclosures About Market Risk](index=44&type=section&id=Item%203.%20Quantitative%20and%20Qualitative%20Disclosures%20About%20Market%20Risk) Assesses market risk exposure, primarily interest rate sensitivity, concluding risks are not significant due to investment characteristics - As of June 30, 2025, the Company held approximately **$991.9 million** in cash, cash equivalents, and marketable securities, primarily in bank deposits, money market funds, U.S. government securities, commercial paper, and corporate bonds[217](index=217&type=chunk) - The primary objective of investment activities is capital preservation. Due to the short-term duration of investments and the maturity of U.S. government treasury bonds prior to liquidity needs, the Company believes its exposure to interest rate risk is not significant[218](index=218&type=chunk) - Inflation and exchange rate fluctuations have not had a significant impact on the Company's results of operations for the periods presented[219](index=219&type=chunk) [Item 4. Controls and Procedures](index=44&type=section&id=Item%204.%20Controls%20and%20Procedures) Evaluates disclosure controls and procedures effectiveness, concluding they were effective with no material changes to internal control - Management acknowledges that controls and procedures provide only reasonable assurance and require judgment in evaluating benefits versus costs[220](index=220&type=chunk) - The Principal Executive Officer and Principal Financial Officer concluded that the Company's disclosure controls and procedures were effective at the reasonable assurance level as of June 30, 2025[221](index=221&type=chunk) - No changes in internal control over financial reporting occurred during the period that materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting[222](index=222&type=chunk) [PART II—OTHER INFORMATION](index=38&type=section&id=PART%20II%E2%80%94OTHER%20INFORMATION) Presents additional information not covered in financial statements, including legal proceedings, risk factors, equity sales, and exhibits [Item 1. Legal Proceedings](index=38&type=section&id=Item%201.%20Legal%20Proceedings) States that the company is not currently involved in any litigation or legal proceedings expected to have a material adverse effect - The Company is not currently involved in any litigation or legal proceedings deemed to have a material adverse effect on its business[224](index=224&type=chunk) - Litigation, regardless of outcome, can negatively impact the business due to defense/settlement costs and diversion of management resources[224](index=224&type=chunk) [Item 1A. Risk Factors](index=45&type=section&id=Item%201A.%20Risk%20Factors) Refers to risk factors detailed in the Annual Report on Form 10-K, confirming no material changes as of the current report date - Readers should consider the risk factors detailed in the Annual Report on Form 10-K filed February 18, 2025[225](index=225&type=chunk) - As of the date of this 10-Q, there have been no material changes to the previously disclosed risk factors[225](index=225&type=chunk) [Item 2. Unregistered Sales of Equity Securities and Use of Proceeds](index=46&type=section&id=Item%202.%20Unregistered%20Sales%20of%20Equity%20Securities%20and%20Use%20of%20Proceeds) Reports no unregistered sales of equity securities, no applicable use of proceeds from registered securities, and no issuer purchases - No unregistered sales of equity securities occurred[227](index=227&type=chunk) - The section on 'Use of Proceeds from the Sale of Registered Securities' is not applicable[228](index=228&type=chunk) - No issuer purchases of equity securities were made[228](index=228&type=chunk) [Item 3. Defaults Upon Senior Securities](index=46&type=section&id=Item%203.%20Defaults%20Upon%20Senior%20Securities) Indicates that there were no defaults upon senior securities during the reporting period - This item is not applicable, indicating no defaults upon senior securities[229](index=229&type=chunk) [Item 4. Mine Safety Disclosures](index=46&type=section&id=Item%204.%20Mine%20Safety%20Disclosures) States that there are no mine safety disclosures applicable to the company - This item is not applicable, indicating no mine safety disclosures[230](index=230&type=chunk) [Item 5. Other information](index=46&type=section&id=Item%205.%20Other%20information) Reports that no Section 16 officers or directors adopted or terminated trading plans for company securities during the period - No Section 16 officers or directors adopted or terminated trading plans for Company securities during Q2 2025[231](index=231&type=chunk) [Item 6. Exhibits](index=47&type=section&id=Item%206.%20Exhibits) Provides a comprehensive list of exhibits filed with the Quarterly Report, including organizational documents, agreements, and certifications - The exhibit index lists various documents, including the Amended and Restated Certificate of Incorporation and Bylaws, forms of Common Stock Certificate and Pre-funded Warrants, Non-Employee Director Compensation Program, Employment Agreement, and certifications (31.1, 31.2, 32.1)[234](index=234&type=chunk) - XBRL Instance Document, Taxonomy Extension Schema, and Cover Page Interactive Data File are included[234](index=234&type=chunk) - Certification Exhibit 32.1 is not deemed filed with the SEC and is not incorporated by reference into other filings[235](index=235&type=chunk) [SIGNATURES](index=49&type=section&id=SIGNATURES) Contains the required signatures for the Quarterly Report on Form 10-Q, confirming its submission by the Principal Executive and Financial Officers - The report is signed by Yujiro Hata, President and Chief Executive Officer (Principal Executive Officer), and Joshua Bleharski, Ph.D., Chief Financial Officer (Principal Financial Officer), on August 5, 2025[238](index=238&type=chunk)[239](index=239&type=chunk)[240](index=240&type=chunk)[241](index=241&type=chunk)

[Executive Summary & Business Update](index=1&type=section&id=Executive%20Summary%20%26%20Business%20Update) The company reports Q2 2025 results, highlighting key clinical catalysts, upcoming IND submissions, and a strong cash position [Company Overview](index=1&type=section&id=Company%20Overview) IDEAYA Biosciences is a precision oncology company focused on developing and commercializing transformative cancer medicines - IDEAYA Biosciences is an oncology company focused on advancing the discovery, development, and commercialization of transformative precision medicines to address unmet medical needs in cancer[2](index=2&type=chunk) [Key Highlights & Upcoming Catalysts](index=1&type=section&id=Key%20Highlights%20%26%20Upcoming%20Catalysts) The company anticipates multiple clinical data updates, three IND submissions, and key trial results by year-end 2025 - **Six clinical data updates** are guided from now to year-end across three clinical stage programs, including two oral presentations accepted at major medical conferences[3](index=3&type=chunk) - Targeted top-line randomized median PFS results for the darovasertib and crizotinib combination in 1L HLA-A2 negative MUM are expected by year-end 2025, with potential to enable a **U.S. accelerated approval filing**[3](index=3&type=chunk) - **Three IND submissions** are on track by year-end 2025, including IDE892 (PRMT5), IDE034 (B7H3/PTK7 bispecific TOP1i ADC), and IDE574 (KAT6/7)[3](index=3&type=chunk) - The company held approximately **$992 million** in cash, cash equivalents, and marketable securities as of June 30, 2025, anticipated to fund operations into 2029[3](index=3&type=chunk) [Pipeline Developments and Upcoming Milestones](index=2&type=section&id=Pipeline%20Developments%20and%20Upcoming%20Milestones) This section details progress across key clinical programs including darovasertib, IDE397, and IDE849, with significant milestones expected [Darovasertib](index=2&type=section&id=Darovasertib) Darovasertib is advancing in metastatic and neoadjuvant uveal melanoma, with key data readouts and a Phase 3 trial underway [Metastatic Uveal Melanoma (MUM)](index=2&type=section&id=Metastatic%20Uveal%20Melanoma%20(MUM)) The Phase 2/3 trial for MUM is progressing toward key PFS and OS data readouts by year-end 2025 - Median progression-free survival (PFS) data from the Phase 2/3 trial of darovasertib in combination with crizotinib in first-line (1L) HLA-A2-negative MUM is on track to be reported by year-end 2025, with potential to enable a **U.S. accelerated approval filing**[5](index=5&type=chunk) - **Over 350 patients** have been enrolled in the Phase 2/3 trial as of August 4, 2025, with full enrollment of approximately 400 patients expected by year-end[5](index=5&type=chunk) - Median overall survival (OS) data from a single-arm, Phase 2 trial of darovasertib in combination with crizotinib will be presented at a medical conference in Q4 2025, including data from **over 40 patients** (HLA-A2-negative and positive)[5](index=5&type=chunk) [Neoadjuvant Therapy for Primary Uveal Melanoma (UM)](index=2&type=section&id=Neoadjuvant%20Therapy%20for%20Primary%20Uveal%20Melanoma%20(UM)) Initial data for neoadjuvant darovasertib will be presented soon, with a Phase 3 registration trial initiated in Q3 2025 - Initial safety and visual benefit data from the Phase 2 clinical trial of darovasertib monotherapy in **over 20 plaque brachytherapy-eligible patients** will be reported at IDEAYA's R&D Day on September 8th[5](index=5&type=chunk) - Additional data from **over 90 patients** in both enucleation-eligible and plaque brachytherapy-eligible cohorts will be shared as a Proffered Paper Oral Presentation at ESMO (October 17-21, 2025)[5](index=5&type=chunk) - A randomized **Phase 3 registration-enabling trial (OptimUM-10)** of darovasertib in the neoadjuvant setting for primary UM was initiated in Q3 2025, following a successful Type D meeting with the FDA[5](index=5&type=chunk)[6](index=6&type=chunk) [IDE397 (MAT2A)](index=3&type=section&id=IDE397%20(MAT2A)) IDE397 is being evaluated in combination with Trodelvy®, with initial data from urothelial cancer cohorts expected shortly - IDEAYA is conducting a Phase 1/2 clinical trial with Gilead to evaluate IDE397 in combination with Trodelvy® in patients with MTAP-deletion urothelial cancer (UC) and non-small cell lung cancer (NSCLC)[10](index=10&type=chunk) - Initial Phase 1 safety and efficacy data from two expansion cohorts in MTAP-deletion UC patients will be provided at IDEAYA's R&D Day on September 8th, with additional data targeted for a medical conference in the first half of 2026[10](index=10&type=chunk) [IDE849 (DLL3 TOP1i ADC)](index=3&type=section&id=IDE849%20(DLL3%20TOP1i%20ADC)) Clinical data for IDE849 in SCLC will be presented by partner Hengrui Pharma, while a U.S. Phase 1 trial is underway - Hengrui Pharma, IDEAYA's partner, will present clinical safety and efficacy data from **over 70 patients** in a multi-site, open-label Phase 1 clinical trial for IDE849 in China for SCLC at the IASLC 2025 World Conference on Lung Cancer (September 6-9, 2025)[10](index=10&type=chunk) - IDEAYA initiated a Phase 1 trial in the U.S. in SCLC in May 2025, with patient dosing in NETs and other DLL3-expressing tumors targeted by year-end 2025[10](index=10&type=chunk) [Other Programs](index=3&type=section&id=Other%20Programs) The pipeline includes PARG, Werner Helicase, and Pol Theta Helicase inhibitors, with several programs in Phase 1 trials - IDE161, a potential first-in-class PARG inhibitor, is in Phase 1 dose optimization, with plans to initiate a Phase 1 combination trial of IDE849 and IDE161 by the end of 2025[10](index=10&type=chunk) - IDE275 (GSK959), a Werner Helicase inhibitor, is in Phase 1 dose escalation in patients with MSI-High solid tumors, developed in collaboration with GSK[10](index=10&type=chunk) - IDE705 (GSK101), a Pol Theta Helicase inhibitor, is in a Phase 1 clinical trial in combination with niraparib (PARP inhibitor) in BRCA-positive or other HRD-positive tumors, also developed with GSK[10](index=10&type=chunk)[11](index=11&type=chunk) - A Phase 2 expansion in HRD-positive solid tumors would trigger a **$10 million milestone payment** from GSK[14](index=14&type=chunk) [Corporate Updates](index=4&type=section&id=Corporate%20Updates) The company announces its upcoming R&D Day, strategic organizational scaling, and plans for three IND submissions by year-end [R&D Day](index=4&type=section&id=R%26D%20Day) An R&D Day in September 2025 will feature clinical data updates and highlight future growth drivers - IDEAYA will host an in-person and virtual R&D Day on September 8th, 2025, from 8:00-10:00 AM ET in New York City[14](index=14&type=chunk) - The event will feature multiple clinical data updates across the pipeline and highlight future growth drivers and upcoming milestones, with speakers including senior leadership and key opinion leaders[14](index=14&type=chunk) [Strategic Initiatives & Personnel](index=4&type=section&id=Strategic%20Initiatives%20%26%20Personnel) The organization is scaling its commercial and medical affairs functions ahead of a potential product launch - IDEAYA continues efforts to scale the organization in preparation for the potential U.S. launch of darovasertib, including key hires within the commercial, medical affairs, and market access functions[14](index=14&type=chunk) - Gary Palmer, M.D., joined as Senior Vice President, Medical Affairs, bringing over 25 years of global leadership experience in medical affairs across multiple therapeutic areas, including oncology[14](index=14&type=chunk) [Investigational New Drug (IND) Submissions](index=4&type=section&id=Investigational%20New%20Drug%20(IND)%20Submissions) Three IND applications for novel oncology candidates are planned for submission by the end of 2025 - IDEAYA plans to submit three IND applications before the end of the year:[14](index=14&type=chunk) - IDE892, a potential best-in-class MTA-cooperative PRMT5 inhibitor, in mid-2025[14](index=14&type=chunk) - IDE034, a potential first-in-class B7H3/PTK7 bispecific TOP1i ADC, in the fourth quarter of 2025[14](index=14&type=chunk) - IDE574, a potential first-in-class KAT6/7 dual inhibitor, in the fourth quarter of 2025[14](index=14&type=chunk) [Financial Results for the Quarter Ended June 30, 2025](index=5&type=section&id=Financial%20Results%20for%20the%20Quarter%20Ended%20June%2030%2C%202025) This section details the company's Q2 2025 financial performance, including its cash position, operating expenses, and net loss [Cash Position](index=5&type=section&id=Cash%20Position) The company maintains a strong cash position of $991.9 million, expected to fund operations into 2029 **Cash, Cash Equivalents, and Marketable Securities** | Date | Amount (Millions USD) | | :--- | :--- | | June 30, 2025 | $991.9 | | March 31, 2025 | $1,050.0 | - The decrease was primarily driven by net cash used in operations[15](index=15&type=chunk) - The company's cash position is anticipated to **fund operations into 2029**[3](index=3&type=chunk) [Operating Expenses](index=5&type=section&id=Operating%20Expenses) R&D and G&A expenses increased due to higher clinical trial activity and personnel-related costs **Operating Expenses (QoQ)** | Expense Category | Q2 2025 (Millions USD) | Q1 2025 (Millions USD) | Change (QoQ) | Primary Reason | | :--- | :--- | :--- | :--- | :--- | | Research and development | $74.2 | $70.9 | +$3.3 | Higher clinical trial and personnel-related expenses | | General and administrative | $14.6 | $13.5 | +$1.1 | Higher personnel-related expenses | [Net Loss](index=5&type=section&id=Net%20Loss) Net loss increased to $77.5 million for the quarter, driven by higher operating expenses **Net Loss (QoQ)** | Metric | Q2 2025 (Millions USD) | Q1 2025 (Millions USD) | Change (QoQ) | | :--- | :--- | :--- | :--- | | Net Loss | $77.5 | $72.2 | +$5.3 | | Net Loss per Share (basic & diluted) | $(0.88) | $(0.82) | $(0.06) | - Total stock compensation expense for the three months ended June 30, 2025, was **$11.9 million**, compared to $10.2 million for the same period in 2024[18](index=18&type=chunk) [About IDEAYA Biosciences](index=5&type=section&id=About%20IDEAYA%20Biosciences) This section outlines the company's mission to develop transformative precision oncology therapies [Company Mission and Approach](index=5&type=section&id=Company%20Mission%20and%20Approach) IDEAYA leverages expertise in drug discovery and biomarkers to develop targeted, first-in-class cancer therapies - IDEAYA is a precision medicine oncology company committed to the discovery, development, and commercialization of transformative therapies for cancer[19](index=19&type=chunk) - Their approach integrates expertise in small-molecule drug discovery, structural biology, and bioinformatics with robust internal capabilities in identifying and validating translational biomarkers[19](index=19&type=chunk) - The company's mission is to bring forth the next wave of precision oncology therapies that are more selective, more effective, and deeply personalized with the goal of altering the course of disease and improving clinical outcomes for patients with cancer[19](index=19&type=chunk) - IDEAYA has built a deep pipeline of product candidates focused on synthetic lethality and antibody-drug conjugates (ADCs) for molecularly defined solid tumor indications[19](index=19&type=chunk) [Forward-Looking Statements](index=5&type=section&id=Forward-Looking%20Statements) This section contains important disclaimers regarding forward-looking statements and associated risks [Disclaimer and Risks](index=5&type=section&id=Disclaimer%20and%20Risks) Forward-looking statements are subject to substantial risks and uncertainties inherent in drug development - The press release contains forward-looking statements related to the timing and content of clinical program updates, regulatory updates, clinical trial data readouts, potential therapeutic benefits, timing of development and regulatory milestones, timing of new IND applications, and the extent to which existing cash will fund operations[20](index=20&type=chunk) - Such forward-looking statements involve substantial risks and uncertainties that could cause actual results to differ significantly, including those inherent in the drug development process, early stage of development, trial design, regulatory approval, manufacturing, intellectual property, and cash sufficiency[20](index=20&type=chunk)[21](index=21&type=chunk) - IDEAYA undertakes no obligation to update or revise any forward-looking statements[21](index=21&type=chunk) [Financial Statements](index=7&type=section&id=Financial%20Statements) This section provides the unaudited condensed statements of operations and balance sheet data [Condensed Statements of Operations and Comprehensive Loss](index=7&type=section&id=Condensed%20Statements%20of%20Operations%20and%20Comprehensive%20Loss) The statement details operating expenses and net loss for the three and six months ended June 30, 2025 **Condensed Statements of Operations and Comprehensive Loss (Unaudited, in thousands, except per share data)** | | Three Months Ended June 30, 2025 | Three Months Ended March 31, 2025 | Six Months Ended June 30, 2025 | Six Months Ended June 30, 2024 | | :--- | :--- | :--- | :--- | :--- | | **Operating expenses:** | | | | | | Research and development | $74,226 | $70,886 | $145,112 | $97,338 | | General and administrative | $14,580 | $13,503 | $28,083 | $18,606 | | **Total operating expenses** | **$88,806** | **$84,389** | **$173,195** | **$115,944** | | Loss from operations | $(88,806) | $(84,389) | $(173,195) | $(115,944) | | Interest income and other income, net | $11,315 | $12,211 | $23,526 | $23,600 | | **Net loss** | **$(77,491)** | **$(72,178)** | **$(149,669)** | **$(92,344)** | | Unrealized (losses) gains on marketable securities | $(64) | $773 | $709 | $(1,978) | | **Comprehensive loss** | **$(77,555)** | **$(71,405)** | **$(148,960)** | **$(94,322)** | | Net loss per share, basic and diluted | $(0.88) | $(0.82) | $(1.69) | $(1.21) | | Weighted-average shares outstanding | 88,472,197 | 88,356,335 | 88,414,586 | 76,535,607 | [Condensed Balance Sheet Data](index=8&type=section&id=Condensed%20Balance%20Sheet%20Data) The balance sheet shows cash and total assets as of June 30, 2025, compared to December 31, 2024 **Condensed Balance Sheet Data (Unaudited, in thousands)** | | June 30, 2025 | December 31, 2024 | | :--- | :--- | :--- | | Cash, equivalents and marketable securities | $991,869 | $1,082,151 | | Total assets | $1,041,270 | $1,124,091 | | Total liabilities | $81,617 | $64,944 | | Total liabilities and stockholders' equity | $1,041,270 | $1,124,091 |

Core Insights - IDEAYA Biosciences is focused on advancing precision medicines for cancer, with a strong pipeline and upcoming clinical data updates expected by year-end 2025 [1][2]. Pipeline Developments - The Phase 2/3 trial of darovasertib and crizotinib in 1L HLA-A2-negative metastatic uveal melanoma (MUM) is on track to report median progression-free survival (PFS) data by year-end 2025, which could enable a U.S. accelerated approval filing [4][5]. - Initial median overall survival data from over 40 patients in a single-arm Phase 2 trial will be presented at a medical conference in Q4 2025 [4][5]. - A randomized Phase 3 trial, OptimUM-10, will enroll approximately 520 patients in the neoadjuvant setting for primary UM, initiated in Q3 2025 [6]. Upcoming Milestones - IDEAYA will host a 10-year Anniversary R&D Day on September 8, 2025, to present multiple clinical data updates and strategic vision [2][10]. - Three investigational new drug (IND) applications are on track for submission by year-end 2025, including IDE892, IDE034, and IDE574 [4][11]. Financial Results - As of June 30, 2025, IDEAYA had approximately $991.9 million in cash, cash equivalents, and marketable securities, down from $1.05 billion as of March 31, 2025 [14][23]. - Research and development expenses for Q2 2025 totaled $74.2 million, an increase from $70.9 million in Q1 2025, primarily due to higher clinical trial expenses [15]. - The net loss for Q2 2025 was $77.5 million, compared to a net loss of $72.2 million in Q1 2025 [17].

Core Insights - IDEAYA Biosciences announced that results from a global Phase 2 study of neoadjuvant darovasertib in primary uveal melanoma will be presented at the 2025 ESMO meeting in Berlin [1][2] - The presentation will focus on the effects of darovasertib across plaque brachytherapy and enucleation cohorts, highlighting its potential impact on disease management [2][3] - The company has initiated a randomized Phase 3 neoadjuvant registrational trial (OptimUM-10) for darovasertib in primary uveal melanoma [6] Company Overview - IDEAYA Biosciences is a precision medicine oncology company focused on developing transformative therapies for cancer [3] - The company integrates drug discovery, structural biology, and bioinformatics to create targeted therapies for specific patient populations [3] - IDEAYA has a robust pipeline that includes therapies based on synthetic lethality and antibody-drug conjugates [3] Clinical Study Details - The upcoming presentation will include data from over 90 patients in both plaque brachytherapy and enucleation-eligible cohorts [6] - Darovasertib has received U.S. FDA Breakthrough Therapy Designation for neoadjuvant use in uveal melanoma patients requiring enucleation [6]

Core Insights - IDEAYA Biosciences, Inc. will host an in-person and virtual R&D Day on September 8, 2025, to present clinical data updates and discuss growth drivers and upcoming milestones [1][2] - The event will feature members of IDEAYA's senior leadership team and key opinion leaders [3] - IDEAYA is celebrating its ten-year anniversary and aims to highlight its strategic vision and emerging clinical pipeline [2] Company Overview - IDEAYA is a precision medicine oncology company focused on discovering, developing, and commercializing transformative therapies for cancer [4] - The company integrates small molecule drug discovery, structural biology, and bioinformatics to develop potentially first-in-class targeted therapies [4] - IDEAYA has a robust pipeline that includes targeted therapies focused on synthetic lethality and antibody-drug conjugates (ADCs) [4]