Senior Equity Administrator, CoStar Group – Arlington, VA or Richmond, VA

CoStar • Arlington, VA

7d • Onsite

About The Position

CoStar Group is seeking a Senior Equity Administrator to serve as the hands-on subject matter expert responsible for the accurate administration, compliance, and continuous improvement of the company’s global equity compensation programs and Employee Stock Purchase Plan (ESPP), as well as support for executive equity and proxy disclosure requirements. This role provides deep technical expertise and ensures accurate, compliant, and scalable delivery of equity processes across multiple countries.

Requirements

• Bachelor’s degree in Finance, Accounting, Human Resources, or related field from an accredited, not-for-profit, in-person college/university.
• 5+ years of experience in equity compensation administration.
• 2+ years of experience administering equity compensation programs at a large corporate organization.
• Strong knowledge of global equity administration, tax, and regulatory requirements (including Section 423, 409A, Section 16, Rule 144).
• Experience supporting proxy disclosures and ASC 718 financial reporting processes.
• Advanced Excel/data analysis skills; high attention to detail and control orientation.
• Experience with stock plan administration platforms (e.g., Fidelity, Morgan Stanley/ETRADE, Shareworks).
• A track record of commitment to prior employers.

Nice To Haves

• ESPP experience.
• Certified Equity Professional (CEP) designation or progress toward certification.
• Exposure to or interest in AI-enabled HR tools and technologies.

Responsibilities

• Administer global equity programs, including RSAs, RSUs, PSUs, and stock options across multiple jurisdictions.
• Manage the full lifecycle of equity awards, including grant processing, vesting, exercises, releases, and cancellations, ensuring accuracy and timeliness.
• Build strong partnerships with Legal, Payroll, and Accounting to support efficient and compliant administration of equity plans.
• Coordinate with regional stakeholders to address country-specific requirements, including tax, securities, and payroll considerations.
• Lead end-to-end administration of the ESPP, including enrollments, offering launches, purchase calculations, share reconciliations, and payroll deductions.
• Ensure compliance with applicable regulatory requirements, including IRC Section 423, 409A, Section 16, Rule 144, and global securities laws.
• Support administration of executive equity transactions, including pre-clearance, trading windows, and coordination with legal counsel.
• Maintain strong internal controls and audit readiness across equity programs.
• Partner with Legal, Finance, and Compensation teams to support equity-related disclosures in the proxy statement (e.g., equity tables, CD&A support, footnote data validation).
• Assist in preparation of reports supporting financial disclosures under ASC 718, including grant date fair value and expense tracking.
• Support data validation for SEC filings and other external reporting requirements.
• Maintain and optimize stock plan administration system (Shareworks), ensuring data accuracy and integrity.
• Reconcile equity data across HRIS, payroll, and equity platforms.
• Support system implementations, upgrades, and integrations.
• Serve as a subject matter expert to employees, executives, HR partners, and leaders on equity programs and ESPP participation.
• Develop and deliver clear communications and educational materials to enhance understanding of equity compensation.
• Identify and implement process improvements to enhance efficiency, control, and employee experience.
• Lead or support special projects, including new country rollouts, plan amendments, or program enhancements.

Benefits

• Generous compensation and performance-based incentives.
• Internal training and tuition reimbursement.
• Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug
• Life, legal, and supplementary insurance
• Virtual and in person mental health counseling services for individuals and family
• Commuter and parking benefits
• 401(K) retirement plan with matching contributions
• Employee stock purchase plan
• Paid time off
• Tuition reimbursement
• On-site fitness center and/or reimbursed fitness center membership costs (location dependent)
• Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks

What This Job Offers

• Job Type: Full-time
• Career Level: Senior