Senior Manager, SEC Reporting and Technical Accounting

Non-Solicitation Policy and Notice to Agencies and Recruiters: IDEAYA's Non-Solicitation Policy strictly prohibits agencies and recruiters from any contact and communication with IDEAYA employees, managers, and leaders to submit unsolicited candidate resumes and/or to solicit business partnerships . Submission of unsolicited candidate resumes by agencies or recruiters with or without a contract in place with IDEAYA Biosciences Inc. will not create any implied obligation. Failure to comply with this policy will result in disqualification from current and future business opportunities with IDEAYA Biosciences. All recruiting and talent agency decisions are strictly managed by the internal IDEAYA Human Resources function. All communication by external agencies and recruiters must be directed to humanresources@ideayabio.com. We ask that you only email your interest once. Job Summary About IDEAYA Biosciences: IDEAYA is a precision medicine oncology company committed to the discovery, development, and commercialization of transformative therapies for cancer. Our approach integrates expertise in small-molecule drug discovery, structural biology and bioinformatics with robust internal capabilities in identifying and validating translational biomarkers to develop tailored, potentially first-in-class targeted therapies aligned to the genetic drivers of disease. We have built a deep pipeline of product candidates focused on synthetic lethality and antibody-drug conjugates, or ADCs, for molecularly defined solid tumor indications. Our 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. When you're at IDEAYA, you will be in the midst of brilliant minds working on precision medicine therapies to help cancer patients. We are passionate and committed about being on the forefront of oncology medicine, which means we all have a high internal drive that is at the very core of every person at IDEAYA. We are inquisitive, ask deep questions, and are data-driven innovators who like to collaborate and use team work to move science forward. For more information, please see www.ideayabio.com. Location: South San Francisco, CA. Position Summary: IDEAYA is seeking a Senior Manager of SEC Reporting and Technical Accounting to join the Finance team. The Senior Manager, SEC Reporting and Technical Accounting will play a key leadership role in IDEAYA's external reporting, technical accounting, and financial compliance activities. Reporting to the Senior Director, Finance, this individual will lead the preparation and review of SEC filings, evaluate complex transactions under U.S. GAAP, support the Company's SOX program, and oversee equity accounting and related reporting. The role requires strong technical judgment, disciplined project management, and the ability to communicate clearly with executive leadership, external auditors, and cross-functional partners. The successful candidate will be a hands-on leader who can operate effectively in a fast-paced public-company environment, improve processes and controls, and develop scalable reporting practices as IDEAYA continues to grow. This position is based in our South San Francisco headquarter office and required to be onsite four days per week per our company policy. Reporting to: Senior Director, Finance Job Description What you’ll do: Lead the end-to-end preparation, review, and filing of Forms 10-K and 10-Q, and support other SEC filings, including Forms 8-K and the annual proxy statement. Own key components of the external reporting process, including financial statements, footnotes, MD&A, disclosure checklists, tie-out documentation, and supporting workpapers. Establish and manage the quarterly and annual reporting calendar, coordinate inputs across functions, and drive timely resolution of review comments and open items. Research, analyze, and document complex accounting matters and significant transactions; prepare high-quality technical accounting memoranda and present conclusions to management and external auditors. Monitor new and proposed U.S. GAAP accounting standards, SEC rules, and disclosure requirements; assess potential impacts and lead implementation and related disclosure updates. Prepare and review materials for the Audit Committee, Board of Directors, and senior management related to financial reporting, technical accounting, and control matters. Serve as a primary liaison with external auditors for quarterly reviews and annual audits, including coordination of requests, technical consultations, and issue resolution. Support the Company's SOX compliance program by evaluating control design and operating effectiveness, improving documentation, and partnering with process owners and internal and external stakeholders. Oversee equity accounting and reporting, including stock-based compensation, earnings per share, weighted-average shares, diluted share calculations, and equity-related disclosures. Provide oversight of stock administration activities and coordinate with the transfer agent, equity platform provider, Human Resources, Legal on equity matters. Partner with third-party advisors on selected corporate tax matters, including provision support, and other compliance or reporting needs. Support month-end and quarter-end close activities for areas within scope. Identify opportunities to streamline reporting processes, strengthen controls, improve data quality, and enhance the scalability of accounting operations and systems. Provide coaching, review, and project leadership to team members and external service providers; help foster a culture of accountability, collaboration, and continuous improvement. Requirements: Bachelor's degree in Accounting, Finance, or a related field; active CPA license required. 8 or more years of progressive accounting experience, including a combination of public accounting and public-company industry experience; biotechnology or life sciences experience strongly preferred. Strong knowledge of U.S. GAAP, SEC reporting requirements, financial statement presentation, and disclosure practices. Demonstrated experience preparing and reviewing Forms 10-K and 10-Q, technical accounting memoranda, and supporting documentation for external audits. Experience with complex accounting areas such as stock-based compensation, earnings per share, equity transactions, collaboration arrangements, leases, and other significant or non-routine transactions. Strong understanding of SOX-compliant processes, internal controls, and public-company close and reporting environments. Excellent written and verbal communication skills, with the ability to translate complex accounting matters into clear, decision-useful conclusions. Strong organizational and project-management skills, sound judgment, attention to detail, and the ability to manage multiple priorities and deadlines. Collaborative, solutions-oriented leadership style and the ability to work effectively across Finance, Legal, Human Resources, Tax, FP&A, Investor Relations, and other functions. Experience with NetSuite, an equity administration platform, and SEC reporting software is preferred. All employees are expected to act with integrity and in full compliance with applicable laws, regulations, and IDEAYA policies, including IDEAYA’s Code of Conduct. Employees m