J · Jacobs Solutions Inc. · Debt

WHEREAS, the Issuer has duly authorized the creation of two series of Debt Securities denominated (i) “4.750% Senior Notes due 2031” in the initial aggregate principal amount of $800,000,000 (the “2031 Notes”) and (ii) “5.375% Senior Notes due 2036” in the initial aggregate principal amount of $500,000,000 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”);

Issuer evidence: THIRD SUPPLEMENTAL INDENTURE, dated as of March 3, 2026 (this “Third Supplemental Indenture”), made and entered into by and among Jacobs Solutions Inc., a Delaware corporation, having its principal office at 1999 Bryan Street, Suite 3500, Dallas, Texas 75201 (the “Issuer”), Jacobs Engineering Group, Inc., a Delaware corporation, having its principal office at 1999 Bryan Street, Suite 3500, Dallas, Texas 75201 (the “Guarantor”), and U.S. Bank Trust Company, National Association, as Trustee (the “Trustee”) under the indenture, dated as of February 16, 2023 (the “Indenture”) by and among the Issuer, the Guarantor and the Trustee.

Supporting evidence: There is hereby created under the Indenture two series of Debt Securities known and designated as the “4.750% Senior Notes due 2031” and “5.375% Senior Notes due 2036.” The aggregate principal amount of 2031 Notes and 2036 Notes that may be authenticated and delivered under this Third Supplemental Indenture is initially limited to $800,000,000 and $500,000,000, respectively, except for Notes authenticated and delivered upon reregistration of, transfer of, or in exchange for, or in lieu of, other Notes pursuant to Sections 2.07, 2.08, 2.09 or 9.04 of the Indenture.

Supporting evidence: The Stated Maturity for the 2031 Notes shall be March 3, 2031 for payment of principal of the 2031 Notes. The Stated Maturity for the 2036 Notes shall be March 3, 2036 for payment of principal of the 2036 Notes.

Supporting evidence: The 2031 Notes shall bear interest at the rate of 4.750% per annum from March 3, 2026 or the most recent interest payment date to which interest has been paid or duly provided for, payable semi-annually in arrears on March 3 and September 3 of each year (beginning September 3, 2026), to the Persons in whose names the 2031 Notes are registered at the close of business on February 18 or August 18, as the case may be, next preceding such interest payment date, until principal thereof is paid or made available for payment.

Supporting evidence: WHEREAS, the Issuer has duly authorized the creation of two series of Debt Securities denominated (i) “4.750% Senior Notes due 2031” in the initial aggregate principal amount of $800,000,000 (the “2031 Notes”) and (ii) “5.375% Senior Notes due 2036” in the initial aggregate principal amount of $500,000,000 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”);

Supporting evidence: WHEREAS, the Issuer has duly authorized the creation of two series of Debt Securities denominated (i) “4.750% Senior Notes due 2031” in the initial aggregate principal amount of $800,000,000 (the “2031 Notes”) and (ii) “5.375% Senior Notes due 2036” in the initial aggregate principal amount of $500,000,000 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”);

On March 3, 2026, Jacobs Solutions Inc. (the “Company”) completed the previously announced offering (the “Offering”) of $800,000,000 aggregate principal amount of its 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of its 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). The Notes are fully and unconditionally guaranteed (the “Guarantees”) by Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”). The Notes and the Guarantees were offered pursuant to a prospectus supplement, dated February 24, 2026, to the prospectus dated February 2, 2026, that forms a part of the Company and the Guarantor’s automatic shelf registration statement on Form S-3ASR (File Nos. 333-293127 and 333-293127-01) previously filed with the Securities and Exchange Commission.

Issuer evidence: On March 3, 2026, Jacobs Solutions Inc. (the “Company”) completed the previously announced offering (the “Offering”) of $800,000,000 aggregate principal amount of its 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of its 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). The Notes are fully and unconditionally guaranteed (the “Guarantees”) by Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”). The Notes and the Guarantees were offered pursuant to a prospectus supplement, dated February 24, 2026, to the prospectus dated February 2, 2026, that forms a part of the Company and the Guarantor’s automatic shelf registration statement on Form S-3ASR (File Nos. 333-293127 and 333-293127-01) previously filed with the Securities and Exchange Commission.

Supporting evidence: Interest on the Notes is payable semi-annually in arrears on each March 3 and September 3, commencing on September 3, 2026, until maturity. The 2031 Notes will bear interest at 4.750% per annum and will mature on March 3, 2031. The 2036 Notes will bear interest at 5.375% per annum and will mature on March 3, 2036.

Supporting evidence: On March 3, 2026, Jacobs Solutions Inc. (the “Company”) completed the previously announced offering (the “Offering”) of $800,000,000 aggregate principal amount of its 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of its 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). The Notes are fully and unconditionally guaranteed (the “Guarantees”) by Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”). The Notes and the Guarantees were offered pursuant to a prospectus supplement, dated February 24, 2026, to the prospectus dated February 2, 2026, that forms a part of the Company and the Guarantor’s automatic shelf registration statement on Form S-3ASR (File Nos. 333-293127 and 333-293127-01) previously filed with the Securities and Exchange Commission.

Supporting evidence: On March 3, 2026, Jacobs Solutions Inc. (the “Company”) completed the previously announced offering (the “Offering”) of $800,000,000 aggregate principal amount of its 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of its 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). The Notes are fully and unconditionally guaranteed (the “Guarantees”) by Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”). The Notes and the Guarantees were offered pursuant to a prospectus supplement, dated February 24, 2026, to the prospectus dated February 2, 2026, that forms a part of the Company and the Guarantor’s automatic shelf registration statement on Form S-3ASR (File Nos. 333-293127 and 333-293127-01) previously filed with the Securities and Exchange Commission.

On February 24, 2026, Jacobs Solutions Inc. (the “Company”), Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”), and BofA Securities, Inc., BNP Paribas Securities Corp. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, entered into an underwriting agreement (“Underwriting Agreement”) pursuant to which the Company agreed to issue and sell $800,000,000 aggregate principal amount of 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”) in an underwritten public offering and the full and unconditional guarantee (the “Guarantees”) of the Notes by the Guarantor (the “Offering”).

Issuer evidence: On February 24, 2026, Jacobs Solutions Inc. (the “Company”), Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”), and BofA Securities, Inc., BNP Paribas Securities Corp. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, entered into an underwriting agreement (“Underwriting Agreement”) pursuant to which the Company agreed to issue and sell $800,000,000 aggregate principal amount of 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”) in an underwritten public offering and the full and unconditional guarantee (the “Guarantees”) of the Notes by the Guarantor (the “Offering”).

Supporting evidence: Underwriting Agreement

Supporting evidence: On February 24, 2026, Jacobs Solutions Inc. (the “Company”), Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”), and BofA Securities, Inc., BNP Paribas Securities Corp. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, entered into an underwriting agreement (“Underwriting Agreement”) pursuant to which the Company agreed to issue and sell $800,000,000 aggregate principal amount of 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”) in an underwritten public offering and the full and unconditional guarantee (the “Guarantees”) of the Notes by the Guarantor (the “Offering”).

Supporting evidence: On February 24, 2026, Jacobs Solutions Inc. (the “Company”), Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”), and BofA Securities, Inc., BNP Paribas Securities Corp. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, entered into an underwriting agreement (“Underwriting Agreement”) pursuant to which the Company agreed to issue and sell $800,000,000 aggregate principal amount of 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”) in an underwritten public offering and the full and unconditional guarantee (the “Guarantees”) of the Notes by the Guarantor (the “Offering”).

On March 3, 2026, Jacobs Solutions Inc. (the “Company”) completed the previously announced offering (the “Offering”) of $800,000,000 aggregate principal amount of its 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of its 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). The Notes are fully and unconditionally guaranteed (the “Guarantees”) by Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”). The Notes and the Guarantees were offered pursuant to a prospectus supplement, dated February 24, 2026, to the prospectus dated February 2, 2026, that forms a part of the Company and the Guarantor’s automatic shelf registration statement on Form S-3ASR (File Nos. 333-293127 and 333-293127-01) previously filed with the Securities and Exchange Commission.

Issuer evidence: On March 3, 2026, Jacobs Solutions Inc. (the “Company”) completed the previously announced offering (the “Offering”) of $800,000,000 aggregate principal amount of its 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of its 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). The Notes are fully and unconditionally guaranteed (the “Guarantees”) by Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”). The Notes and the Guarantees were offered pursuant to a prospectus supplement, dated February 24, 2026, to the prospectus dated February 2, 2026, that forms a part of the Company and the Guarantor’s automatic shelf registration statement on Form S-3ASR (File Nos. 333-293127 and 333-293127-01) previously filed with the Securities and Exchange Commission.

Supporting evidence: Interest on the Notes is payable semi-annually in arrears on each March 3 and September 3, commencing on September 3, 2026, until maturity. The 2031 Notes will bear interest at 4.750% per annum and will mature on March 3, 2031. The 2036 Notes will bear interest at 5.375% per annum and will mature on March 3, 2036.

Supporting evidence: On March 3, 2026, Jacobs Solutions Inc. (the “Company”) completed the previously announced offering (the “Offering”) of $800,000,000 aggregate principal amount of its 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of its 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). The Notes are fully and unconditionally guaranteed (the “Guarantees”) by Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”). The Notes and the Guarantees were offered pursuant to a prospectus supplement, dated February 24, 2026, to the prospectus dated February 2, 2026, that forms a part of the Company and the Guarantor’s automatic shelf registration statement on Form S-3ASR (File Nos. 333-293127 and 333-293127-01) previously filed with the Securities and Exchange Commission.

Supporting evidence: On March 3, 2026, Jacobs Solutions Inc. (the “Company”) completed the previously announced offering (the “Offering”) of $800,000,000 aggregate principal amount of its 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of its 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”). The Notes are fully and unconditionally guaranteed (the “Guarantees”) by Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”). The Notes and the Guarantees were offered pursuant to a prospectus supplement, dated February 24, 2026, to the prospectus dated February 2, 2026, that forms a part of the Company and the Guarantor’s automatic shelf registration statement on Form S-3ASR (File Nos. 333-293127 and 333-293127-01) previously filed with the Securities and Exchange Commission.

On February 24, 2026, Jacobs Solutions Inc. (the “Company”), Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”), and BofA Securities, Inc., BNP Paribas Securities Corp. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, entered into an underwriting agreement (“Underwriting Agreement”) pursuant to which the Company agreed to issue and sell $800,000,000 aggregate principal amount of 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”) in an underwritten public offering and the full and unconditional guarantee (the “Guarantees”) of the Notes by the Guarantor (the “Offering”).

Issuer evidence: On February 24, 2026, Jacobs Solutions Inc. (the “Company”), Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”), and BofA Securities, Inc., BNP Paribas Securities Corp. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, entered into an underwriting agreement (“Underwriting Agreement”) pursuant to which the Company agreed to issue and sell $800,000,000 aggregate principal amount of 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”) in an underwritten public offering and the full and unconditional guarantee (the “Guarantees”) of the Notes by the Guarantor (the “Offering”).

Supporting evidence: Underwriting Agreement

Supporting evidence: On February 24, 2026, Jacobs Solutions Inc. (the “Company”), Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”), and BofA Securities, Inc., BNP Paribas Securities Corp. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, entered into an underwriting agreement (“Underwriting Agreement”) pursuant to which the Company agreed to issue and sell $800,000,000 aggregate principal amount of 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”) in an underwritten public offering and the full and unconditional guarantee (the “Guarantees”) of the Notes by the Guarantor (the “Offering”).

Supporting evidence: On February 24, 2026, Jacobs Solutions Inc. (the “Company”), Jacobs Engineering Group Inc., a wholly-owned subsidiary of the Company (the “Guarantor”), and BofA Securities, Inc., BNP Paribas Securities Corp. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, entered into an underwriting agreement (“Underwriting Agreement”) pursuant to which the Company agreed to issue and sell $800,000,000 aggregate principal amount of 4.750% Senior Notes due 2031 (the “2031 Notes”) and $500,000,000 aggregate principal amount of 5.375% Senior Notes due 2036 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”) in an underwritten public offering and the full and unconditional guarantee (the “Guarantees”) of the Notes by the Guarantor (the “Offering”).

WHEREAS, the Issuer has duly authorized the creation of two series of Debt Securities denominated (i) “4.750% Senior Notes due 2031” in the initial aggregate principal amount of $800,000,000 (the “2031 Notes”) and (ii) “5.375% Senior Notes due 2036” in the initial aggregate principal amount of $500,000,000 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”);

Issuer evidence: THIRD SUPPLEMENTAL INDENTURE, dated as of March 3, 2026 (this “Third Supplemental Indenture”), made and entered into by and among Jacobs Solutions Inc., a Delaware corporation, having its principal office at 1999 Bryan Street, Suite 3500, Dallas, Texas 75201 (the “Issuer”), Jacobs Engineering Group, Inc., a Delaware corporation, having its principal office at 1999 Bryan Street, Suite 3500, Dallas, Texas 75201 (the “Guarantor”), and U.S. Bank Trust Company, National Association, as Trustee (the “Trustee”) under the indenture, dated as of February 16, 2023 (the “Indenture”) by and among the Issuer, the Guarantor and the Trustee.

Supporting evidence: There is hereby created under the Indenture two series of Debt Securities known and designated as the “4.750% Senior Notes due 2031” and “5.375% Senior Notes due 2036.” The aggregate principal amount of 2031 Notes and 2036 Notes that may be authenticated and delivered under this Third Supplemental Indenture is initially limited to $800,000,000 and $500,000,000, respectively, except for Notes authenticated and delivered upon reregistration of, transfer of, or in exchange for, or in lieu of, other Notes pursuant to Sections 2.07, 2.08, 2.09 or 9.04 of the Indenture.

Supporting evidence: The Stated Maturity for the 2031 Notes shall be March 3, 2031 for payment of principal of the 2031 Notes. The Stated Maturity for the 2036 Notes shall be March 3, 2036 for payment of principal of the 2036 Notes.

Supporting evidence: The 2036 Notes shall bear interest at the rate of 5.375% per annum from March 3, 2026 or the most recent interest payment date to which interest has been paid or duly provided for, payable semi-annually in arrears on March 3 and September 3 of each year (beginning September 3, 2026), to the Persons in whose names the 2036 Notes are registered at the close of business on February 18 or August 18, as the case may be, next preceding such interest payment date, until principal thereof is paid or made available for payment.

Supporting evidence: WHEREAS, the Issuer has duly authorized the creation of two series of Debt Securities denominated (i) “4.750% Senior Notes due 2031” in the initial aggregate principal amount of $800,000,000 (the “2031 Notes”) and (ii) “5.375% Senior Notes due 2036” in the initial aggregate principal amount of $500,000,000 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”);

Supporting evidence: WHEREAS, the Issuer has duly authorized the creation of two series of Debt Securities denominated (i) “4.750% Senior Notes due 2031” in the initial aggregate principal amount of $800,000,000 (the “2031 Notes”) and (ii) “5.375% Senior Notes due 2036” in the initial aggregate principal amount of $500,000,000 (the “2036 Notes” and, together with the 2031 Notes, the “Notes”);