Item 6. Exhibits


Exhibit Number			Description of Exhibit
4.1			Officers' Certificate of Leidos, Inc., dated as of February 13, 2025. Incorporated by reference to Exhibit 4.1 to our Current Report on Form 8-K filed with the SEC on February 20, 2025.


4.2			Form of Global Note representing Leidos, Inc.'s 5.400% Notes due 2032 . Included in Exhibit 4.1 and incorporated by reference to Exhibit 4.2 to our Current Report on Form 8-K filed with the SEC on February 20, 2025.


4.3			Form of Global Note representing Leidos, Inc.'s 5.500% Notes due 2035. Included in Exhibit 4.1 and incorporated by reference to Exhibit 4.3 to our Current Report on Form 8-K filed with the SEC on February 20, 2025.


18			Letter regarding change in accounting principles .


22			List of Guarantors and Subsidiary Issuers of Guaranteed Securities.


31.1			Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.


31.2			Certification of Executive Vice President and Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.


32.1			Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.


32.2			Certification of Executive Vice President and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.


101			Interactive Data File. The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.


104			Cover Page Interactive Data File. The cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.


Leidos Holdings, Inc.			29

Table of Contents

PART II—OTHER INFORMATION

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date: May 6, 2025

Leidos Holdings, Inc.


/s/ Christopher R. Cage
Christopher R. Cage Executive Vice President and Chief Financial Officer and as a duly authorized officer


30			Leidos Holdings, Inc.

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