IBM

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-02-26 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: INTERNATIONAL BUSINESS MACHINES CORP (IBM) CIK: 0000051143 --- Reporting Owner --- Name: KRISHNA ARVIND CIK: 0001629898 Role: Director, Officer (Chairman, President & CEO) --- Derivative Transactions --- [Transaction #1] Security: Rst. Stock Unit Date: 2026-02-26 | Code: A (Grant or award) Shares: +22,518 | Price: $0.00 Shares Owned After: 22,518 | Ownership: D (Direct) Footnotes: [F1] Upon lapse of the restrictions, these units are payable in cash or the company's common stock. The restrictions lapse for 5,629 of these units on February 26, 2027, 5,630 of these units on February 26, 2028, 5,629 of these units on February 26, 2029, and 5,630 of these units on February 26, 2030. [F1] Upon lapse of the restrictions, these units are payable in cash or the company's common stock. The restrictions lapse for 5,629 of these units on February 26, 2027, 5,630 of these units on February 26, 2028, 5,629 of these units on February 26, 2029, and 5,630 of these units on February 26, 2030. [F1] Upon lapse of the restrictions, these units are payable in cash or the company's common stock. The restrictions lapse for 5,629 of these units on February 26, 2027, 5,630 of these units on February 26, 2028, 5,629 of these units on February 26, 2029, and 5,630 of these units on February 26, 2030. [F1] Upon lapse of the restrictions, these units are payable in cash or the company's common stock. The restrictions lapse for 5,629 of these units on February 26, 2027, 5,630 of these units on February 26, 2028, 5,629 of these units on February 26, 2029, and 5,630 of these units on February 26, 2030. [Transaction #2] Security: Emp. Stock Option (right to buy) Date: 2026-02-26 | Code: A (Grant or award) Shares: +90,071 | Price: $0.00 Exercisable: N/A | Expires: 2036-02-25 Shares Owned After: 90,071 | Ownership: D (Direct) Footnotes: [F2] These derivative securities vest in four equal annual installments, the first vesting being on the date exercisable shown. All expire on the expiration date shown above. [F2] These derivative securities vest in four equal annual installments, the first vesting being on the date exercisable shown. All expire on the expiration date shown above. --- Footnotes (Complete Index) --- F1: Upon lapse of the restrictions, these units are payable in cash or the company's common stock. The restrictions lapse for 5,629 of these units on February 26, 2027, 5,630 of these units on February 26, 2028, 5,629 of these units on February 26, 2029, and 5,630 of these units on February 26, 2030. F2: These derivative securities vest in four equal annual installments, the first vesting being on the date exercisable shown. All expire on the expiration date shown above. --- Signature --- /s/ L. Mallardi on behalf of A. Krishna (2026-02-27)