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: 2026-01-08 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: FACTSET RESEARCH SYSTEMS INC (FDS) CIK: 0001013237 --- Reporting Owner --- Name: SIEGEL LAURIE CIK: 0001223626 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-01-08 | Code: M (Exercise of derivative) Shares: +2,572 | Price: $207.88 Total Value: $534,667.36 Shares Owned After: 3,609 | Ownership: D (Direct) [Transaction #2] Security: Common Stock Date: 2026-01-08 | Code: S (Open market sale) Shares: -1,984 | Price: $296.12 Total Value: $587,502.08 Shares Owned After: 1,625 | Ownership: D (Direct) Footnotes: [F1] This transaction was executed in multiple trades with sales prices ranging from $295.50 to $296.49. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. [Transaction #3] Security: Common Stock Date: 2026-01-08 | Code: S (Open market sale) Shares: -588 | Price: $296.67 Total Value: $174,441.96 Shares Owned After: 1,037 | Ownership: D (Direct) Footnotes: [F2] This transaction was executed in multiple trades with sales prices ranging from $296.52 to $296.73. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. --- Derivative Transactions --- [Transaction #1] Security: Non-Employee Director Stock Option (right to buy) Date: 2026-01-08 | Code: M (Exercise of derivative) Shares: -2,572 | Price: $0.00 Exercisable: N/A | Expires: 2026-01-15 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F3] Non-qualified stock options granted to non-employee Directors cliff vest 100% after three years from the date the options were granted. --- Footnotes (Complete Index) --- F1: This transaction was executed in multiple trades with sales prices ranging from $295.50 to $296.49. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2: This transaction was executed in multiple trades with sales prices ranging from $296.52 to $296.73. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F3: Non-qualified stock options granted to non-employee Directors cliff vest 100% after three years from the date the options were granted. --- Signature --- /s/ /s/ WINNIFRED LEWIS, Attorney in Fact for Laurie Siegel (2026-01-12)