David Jeffrey Richardson - 25 Feb 2026 Form 4 Insider Report for LATTICE SEMICONDUCTOR CORP (LSCC)

Role: Director
Signature: /s/ Tracy Feanny, Attorney in Fact For: David Jeffrey Richardson
Issuer symbol: LSCC
Transactions as of: 25 Feb 2026
Net transactions value: -$1,287,148
Form type: 4
Filing time: 26 Feb 2026, 14:21:52 UTC
Previous filing: 07 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
RICHARDSON DAVID JEFFREY	Director	5555 NE MOORE COURT, HILLSBORO	/s/ Tracy Feanny, Attorney in Fact For: David Jeffrey Richardson	26 Feb 2026	0001329724

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	LSCC	Common Stock	Sale	$1,137,357	-11,299	-29%	$100.66	27,218	25 Feb 2026	by Family Trust	F1
transaction	LSCC	Common Stock	Sale	$149,791	-1,480	-5.4%	$101.21	25,738	25 Feb 2026	by Family Trust	F2
holding	LSCC	Common Stock						4,193	25 Feb 2026	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This transaction was executed in multiple trades at prices ranging from $100.0960 to $101.0700. 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.
F2	This transaction was executed in multiple trades at prices ranging from $101.1300 to $101.3200. 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.

Content

This transaction was executed in multiple trades at prices ranging from $100.0960 to $101.0700. 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 $101.1300 to $101.3200. 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.