FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
DEMETRIOU STEVEN J.
  2. Issuer Name and Ticker or Trading Symbol
JACOBS SOLUTIONS INC. [J] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
EXECUTIVE CHAIR
(Last)
(First)
(Middle)
1999 BRYAN STREET, SUITE 3500		 3. Date of Earliest Transaction (Month/Day/Year)
09/18/2024
(Street)

DALLAS, TX 75201		 4. If Amendment, Date Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4) 		7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 09/18/2024   M(1)   15,646 (2) A (1) 542,784 D  
Common Stock 09/18/2024   M(1)   12,501 (3) A (1) 555,285 D  
Common Stock 09/18/2024   F   17,409 (4) D $ 145.54 537,876 D  
Common Stock 09/18/2024   F   10,050 (5) D $ 145.54 527,826 D  
Common Stock               23,550 I By Spouse

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5) 		6. Date Exercisable and Expiration Date
(Month/Day/Year) 		7. Title and Amount of Underlying Securities
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4) 		10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4) 		11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Performance Stock Units $ 0 (6) 09/18/2024   M(1)     15,646 (2)   (7)   (7) Common Stock 15,646 (2) (1) 0 D  
Performance Stock Units $ 0 (6) 09/18/2024   M(1)     12,501 (3)   (7)   (7) Common Stock 12,501 (3) (1) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
DEMETRIOU STEVEN J.
1999 BRYAN STREET, SUITE 3500
DALLAS, TX 75201		   X     EXECUTIVE CHAIR  

Signatures

 /s/ Justin Johnson, Attorney-in-Fact for Steven J. Demetriou   09/20/2024
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents distribution of Jacobs common stock upon vesting of performance stock units awarded on November 17, 2021 pursuant to the Jacobs Stock Incentive Plan.
(2) The number of performance stock units that vested, and therefore the number of shares of Jacobs common stock issued upon vesting, represents 63.2% of the number of performance stock units originally awarded on November 17, 2021, based on the Company's earnings per share (EPS) growth over the three-year performance period, with such percentages determined in accordance with the Employee Matters Agreement (the "EMA"), dated November 20, 2023, entered into by and between the issuer, Amazon Holdco Inc., and Amentum Parent Holdings LLC ("Amentum") in connection with the spin-off distribution of the issuer's Critical Mission Solutions and Cyber & Intelligence government services businesses and the merger of these businesses with Amentum (the "Transaction"). Per the EMA, performance stock units scheduled to vest in November 2024 received service credit for the full performance period.
(3) The number of performance stock units that vested, and therefore the number of shares of Jacobs common stock issued upon vesting, represents 50.5% of the number of performance stock units originally awarded on November 17, 2021 based on the Company's average return on invested capital (ROIC) over the three-year performance period, with such percentage determined in accordance with the EMA entered into by the issuer, Amazon Holdco Inc., and Amentum in connection with the Transaction. Per the EMA, performance stock units scheduled to vest in November 2024 received service credit for the full performance period.
(4) Represents number of shares of Jacobs common stock tendered for tax withholding upon vesting of restricted stock units pursuant to the Jacobs Stock Incentive Plan.
(5) Represents number of shares of Jacobs common stock tendered for tax withholding on distribution of Jacobs common stock upon vesting of performance stock units.
(6) Each performance stock unit represented a contingent right to receive one share of Jacobs common stock.
(7) The performance stock units vested on September 18, 2024.

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