Idex (IEX)

=== SEC Form 3 — Statement of Changes in Beneficial Ownership === Document Type: 3 Period of Report: 2026-02-18 --- Issuer --- Name: IDEX CORP /DE/ (IEX) CIK: 0000832101 --- Reporting Owner --- Name: Simmons William L. CIK: 0002110290 Role: Officer (Group Executive, FMT & FSDP) --- Holdings --- [Holding #1] Security: COMMON STOCK Ownership: D (Direct) Footnotes: [F1] Includes 1,699 restricted stock units (?RSUs?). Each RSU represents a contingent right to receive one share of the Issuer?s common stock. These RSUs vest as follows, subject to the Reporting Person?s continuous service through each such date: (i) 987 RSUs vest on September 16, 2026, and (ii) 712 RSUs vest on February 20, 2028. [Holding #2] Security: OPTIONS (RIGHT TO BUY) Ownership: D (Direct) Footnotes: [F2] Represents 454 shares remaining from an original option grant of 1,815 shares, which option is fully vested. [Holding #3] Security: OPTIONS (RIGHT TO BUY) Ownership: D (Direct) Footnotes: [F3] Represents 870 shares remaining from an original option grant of 1,740 shares, which option vests in four substantially equal annual installments beginning February 24, 2023, subject to the Reporting Person?s continuous service through each such date. [Holding #4] Security: OPTIONS (RIGHT TO BUY) Ownership: D (Direct) Footnotes: [F4] This option vests in four substantially equal annual installments beginning February 23, 2024, subject to the Reporting Person?s continuous service through each such date. [Holding #5] Security: OPTIONS (RIGHT TO BUY) Ownership: D (Direct) Footnotes: [F5] This option vests in four substantially equal annual installments beginning February 22, 2025, subject to the Reporting Person?s continuous service through each such date. [Holding #6] Security: OPTIONS (RIGHT TO BUY) Ownership: D (Direct) Footnotes: [F6] This option vests in four substantially equal annual installments beginning February 20, 2026, subject to the Reporting Person?s continuous service through each such date. --- Footnotes (Complete Index) --- F1: Includes 1,699 restricted stock units (?RSUs?). Each RSU represents a contingent right to receive one share of the Issuer?s common stock. These RSUs vest as follows, subject to the Reporting Person?s continuous service through each such date: (i) 987 RSUs vest on September 16, 2026, and (ii) 712 RSUs vest on February 20, 2028. F2: Represents 454 shares remaining from an original option grant of 1,815 shares, which option is fully vested. F3: Represents 870 shares remaining from an original option grant of 1,740 shares, which option vests in four substantially equal annual installments beginning February 24, 2023, subject to the Reporting Person?s continuous service through each such date. F4: This option vests in four substantially equal annual installments beginning February 23, 2024, subject to the Reporting Person?s continuous service through each such date. F5: This option vests in four substantially equal annual installments beginning February 22, 2025, subject to the Reporting Person?s continuous service through each such date. F6: This option vests in four substantially equal annual installments beginning February 20, 2026, subject to the Reporting Person?s continuous service through each such date. --- Signature --- /s/ /s/ Sam Rayburn, by Power of Attorney (2026-02-23)