Senior Manager, External Reporting

Overview We are seeking a Senior Manager, External Reporting, to join our Accounting and External Reporting team. This role leads the preparation and filing of SEC reports and managing compensation accounting, including stock-based compensation. The Senior Manager will partner closely with Finance leadership and cross-functional teams to ensure accurate, timely, and compliant external reporting. This is a hands‑on role suited for a detail‑oriented leader who thrives in a fast‑paced, dynamic environment. This position reports to the Assistant Controller and works closely with Legal, Tax, Treasury, Finance, and Human Resources. This position is hybrid and will be primarily located in Cambridge, MA . Responsibilities Lead preparation and filing of SEC reports (10-Q, 10-K, 8-K), including financial statements, footnote disclosures, and MD&A Manage the external reporting calendar and coordinate cross‑functional inputs to meet deadlines Support quarterly earnings releases, investor decks, and other external communications Assist with proxy statement preparation, including all calculations presented in the Compensation Discussion & Analysis disclosures Support technical accounting research for significant or non‑routine transactions Oversee compensation accounting, including stock‑based compensation, incentive programs, and payroll accruals Develop and maintain appropriate internal controls as business process owner, with documentation supporting Sarbanes‑Oxley (SOX) compliance Identify and drive process improvements, including automation and workflow enhancements Partner with external auditors and support preparation of disclosure and audit committee presentations Collaborate with Accounting, Legal, Tax, Treasury, Finance, and HR to ensure accurate disclosures Lead, mentor, and develop team members Support special projects and other external reporting initiatives as needed Qualifications Bachelor's and/or Master's degree in Accounting preferred CPA required 7+ years of experience in public accounting and/or industry Strong expertise in U.S. GAAP, SEC reporting, and SOX compliance Global clinical and commercial biotech experience preferred SAP experience preferred Proven ability to manage multiple priorities and meet deadlines in a fast‑paced environment Demonstrates sound judgment and discretion with sensitive information U.S. Pay Range $139,400.00 - $188,600.00 The pay range reflects the full‑time base salary range we expect to pay for this role at the time of posting. Base pay will be determined based on a number of factors including, but not limited to, relevant experience, skills, and education. This role is eligible for an annual short‑term incentive award (e.g., bonus or sales incentive) and an annual long‑term incentive award (e.g., equity). Alnylam's robust Total Rewards package is designed to support your overall health and well‑being. We offer comprehensive benefits including medical, dental, and vision coverage, life and disability insurance, a lifestyle reimbursement program, flexible spending and health savings accounts and a 401(k) with a generous company match. Eligible employees enjoy paid time off, wellness days, holidays, and two company‑wide recharge breaks. We also offer generous family resources and leave. Our commitment to your well‑being reflects our belief that caring for our people fuels the impact we create together. Learn more about these and additional benefits offered by Alnylam by visiting the Benefits section of the Careers website: At Alnylam, we commit to an inclusive recruitment process and equal employment opportunity. Qualified applicants will receive consideration for employment without regard to their sex, gender or gender identity, sexual orientation, race, color, ethnicity, national origin, ancestry, citizenship, religion, creed, physical or mental disability, pregnancy status or related conditions, genetic information, veteran or military status, marital or familial status, political affiliation, age, or any other factor protected by federal, state, or local law. Alnylam is an E-Verify Employer. #J-18808-Ljbffr Alnylam Pharmaceuticals