FACTSET RESEARCH SYSTEMS INC

This summary does not contain all information stockholders should consider, and we encourage stockholders to read the entire Proxy Statement carefully.

Proposal 1 — Election of Directors

The Board of Directors (the "Board") of FactSet Research Systems Inc. ("FactSet," the "Company," "we," "our," or "us") has nominated each of the ten individuals indicated below to serve a term as a director. All are independent other than Mr. Viswanathan, our Chief Executive Officer ("CEO"). If elected at the Meeting, each director is expected to serve until the 2027 Annual Meeting of Stockholders. Below is a summary of the ten nominees.

AC Audit Committee CTC Compensation and Talent Committee NCGC Nominating and Corporate Governance Committee

♦ Member C Committee Chair

For a detailed discussion of our Board of Directors, our corporate governance practices and our director nominees, please see "Corporate Governance" beginning on page 4 and "Proposal 1: Election of Directors" on page 18.

Proposal 2 — Ratification of Independent Registered Public Accounting Firm

The Audit Committee has appointed Ernst & Young LLP as the Company's independent registered public accounting firm for the fiscal year ending August 31, 2027. A resolution is being presented to our stockholders requesting ratification of Ernst & Young LLP's appointment. See "Proposal 2: Ratification of Independent Registered Public Accounting Firm" beginning on page 20.

Proposal 3 — Advisory Vote on Executive Compensation

We are submitting an advisory resolution to approve the compensation of our Named Executive Officers ("NEOs").

2026 Proxy Statement 1

Our executive compensation program is overseen by our Compensation and Talent Committee ("Compensation Committee") to encourage decisions and behaviors that align with the long-term interests of our stockholders. The Compensation Committee has designed the executive compensation policies for our NEOs to meet the following goals and principles:

•Pay for performance, as measured by our collective operating performance as a company and individual performance toward executing our strategy, accelerating growth, and contributing to company-wide results.

•Align with stockholder value by promoting a long-term ownership mindset and attracting, motivating and retaining our talent who drive stockholder value over time.

•Balance an executive officer’s compensation between short-term and long-term performance objectives that enhance stockholder value by linking rewards to measurable corporate and individual performance.

•Maintain executive compensation at levels commensurate with relative contributions of other members of senior management.

•Use a blend of quantitative financial performance and qualitative factors as key considerations in determining individual executive compensation payments.

•Attract and retain talented personnel by considering compensation offered for similar positions by other companies in the technology and financial information industries.

For a detailed discussion of our compensation practices, see "Compensation Discussion & Analysis" beginning on page 22, "Executive Compensation" beginningon page 48, and "Proposal 3: Advisory Vote on Executive Compensation" beginning on page 60.

2026 Proxy Statement 3