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

CoStar Group

CoStar Group

Arlington, VA, USA

Posted on May 12, 2026
Senior Equity Administrator, CoStar Group – Arlington, VA or Richmond, VA

Job Description

Who is CoStar Group?

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives.

We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers. We’ve continually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors. We continue that effort today and are always working to improve and drive innovation. This is how we deliver for our customers, our employees, and investors. By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate.

Role Overview: Senior Equity Administrator

Richmond, VA or Arlington, VA | In-office, Monday Friday

We are open to providing relocation support for the right candidate.

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. Provides deep technical expertise and ensures accurate, compliant, and scalable delivery of equity processes across multiple countries.

Key Responsibilities

Global Equity Plan Administration

  • 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.

Compliance, Governance & Executive Equity

  • 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.

Proxy & Reporting Support

  • 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.

Systems & Data Management

  • 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.

Employee & Stakeholder Support

  • 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.

Process Improvement & Projects

  • 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.

Scope & Impact

  • Recognized as a technical expert in equity administration, particularly in ESPP and global program execution.

  • Owns complex, high-risk processes, including executive transactions and proxy data support.

  • Operates independently with minimal supervision.

  • Influences cross-functional stakeholders (Legal, Tax, Payroll, Finance) through deep subject matter expertise.

Basic Qualifications

  • 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/E*TRADE, Shareworks).

  • A track record of commitment to prior employers.

Preferred Qualifications

  • ESPP experience.

  • Certified Equity Professional (CEP) designation or progress toward certification.

  • Exposure to or interest in AI-enabled HR tools and technologies.

What’s In It For You?

If you are a driven professional looking for a high-growth, high-reward career, CoStar Group offers the ideal opportunity. Be part of a best-in-class company with strong year-over-year growth that invests in your success. Enjoy a rewarding atmosphere where you can learn, excel, and grow.

When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.

We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training and tuition reimbursement.

Our benefits package includes (but is not limited to):

  • 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

Sponsorship

We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply. However, please note that CoStar Group is not able to provide visa sponsorship for this position.

CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing