X0508 4 2026-02-12 0000855658 LATTICE SEMICONDUCTOR CORP LSCC 0001992449 Desale Pravin 5555 NE MOORE COURT HILLSBORO OR 97124 1 SVP, R&D 1 Common Stock 2026-02-12 4 S 0 700 97.5091 D 88071 D Common Stock 2026-02-12 4 S 0 800 99.04 D 87271 D Common Stock 2026-02-12 4 S 0 1537 99.9355 D 85734 D Common Stock 2026-02-12 4 S 0 400 100.855 D 85334 D Common Stock 2026-02-12 4 S 0 300 102.1833 D 85034 D Common Stock 2026-02-12 4 S 0 200 103.71 D 84834 D Common Stock 2026-02-12 4 S 0 700 105.20470 D 84134 D Common Stock 2026-02-12 4 S 0 200 106.625 D 83934 D Common Stock 2026-02-12 4 S 0 100 107.30 D 83834 D The transaction indicated was conducted under an approved 10b5-1 Plan, adoption date of referenced 10b5-1(c) plan is: 08-28-2025. This transaction was executed in multiple trades at prices ranging from $97.14 to $98.07. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. This transaction was executed in multiple trades at prices ranging from $98.42 to $99.35. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. This transaction was executed in multiple trades at prices ranging from $99.53 to $100.47. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. This transaction was executed in multiple trades at prices ranging from $100.71 to $101.28. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. This transaction was executed in multiple trades at prices ranging from $102.02 to $102.46. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. This transaction was executed in multiple trades at prices ranging from $103.47 to $103.95. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. This transaction was executed in multiple trades at prices ranging from $104.635 to $105.62. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. This transaction was executed in multiple trades at prices ranging from $106.20 to $107.05. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. This transaction was executed in multiple trades at prices ranging from $107.30 to $107.30. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. /s/ Tracy Feanny, Attorney in Fact For: Pravin Desale 2026-02-13