FACTSET RESEARCH SYSTEMS INC (FDS) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: FACTSET RESEARCH SYSTEMS INC (FDS) CIK: 0001013237 --- Reporting Owner --- Name: Warren Joshua CIK: 0002000217 Role: Officer (EVP, Chief Financial Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-01 | Code: A (Grant or award) Shares: +2,272 | Price: $0.00 Shares Owned After: 2,272 | Ownership: D (Direct) Footnotes: [F1] Restricted stock units vest 50% on the third anniversary date of the grant and 50% on the fourth anniversary date of the grant. --- Derivative Transactions --- [Transaction #1] Security: Employee Stock Option (right to buy) Date: 2026-05-01 | Code: A (Grant or award) Shares: +8,567 | Price: $0.00 Exercisable: N/A | Expires: 2036-05-01 Shares Owned After: 8,567 | Ownership: D (Direct) Footnotes: [F2] Options vest 50% on the third anniversary date of the grant and 50% on the fourth anniversary date of the grant. --- Footnotes (Complete Index) --- F1: Restricted stock units vest 50% on the third anniversary date of the grant and 50% on the fourth anniversary date of the grant. F2: Options vest 50% on the third anniversary date of the grant and 50% on the fourth anniversary date of the grant. --- Signature --- /s/ WINNIFRED LEWIS, Attorney in Fact for Joshua Warren (2026-05-05)