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Employee Stock Purchase and Stock Incentive Plans (Tables) | 12 Months Ended
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Sep. 26, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Employee Stock Ownership Plan (ESOP) Disclosures | The following table summarizes the stock issuance activity under the plans for the fiscal years ended September 26, 2025, September 27, 2024 and September 29, 2023:
| For the Years Ended
| September 26, 2025 |  | September 27, 2024 |  | September 29, 2023
Aggregate Purchase Price Paid for Shares Sold (in thousands) | $ | 33,583 |  |  | $ | 42,926 |  |  | $ | 40,195 |
Aggregate Number of Shares Sold | 263,729 |  |  | 321,012 |  |  | 355,007 |
Schedule of Stock Incentive Plans and Weighted Average Grant-Date Fair Value of Restricted Stock and Restricted Stock Units | The following table sets forth certain information about the Stock Incentive Plans:
| 2023 SIP |  | 1999 ODSP |  | Total
Number of shares authorized | 29,850,000 |  |  | 1,100,000 |  |  | 30,950,000 |
Number of remaining shares reserved for issuance at September 26, 2025 | 3,229,104 |  |  | 99,833 |  |  | 3,328,937 |
Number of shares available for future awards: |  |  |  |  |
At September 26, 2025 | 3,229,104 |  |  | 99,833 |  |  | 3,328,937 |
At September 27, 2024 | 3,161,188 |  |  | 112,794 |  |  | 3,273,982 |
The following table presents the number and weighted average grant-date fair value of restricted stock and restricted stock units at September 26, 2025:
| Number of Shares |  | Weighted Average Grant-Date Fair Value
Outstanding at September 27, 2024 | 1,574,887 |  |  | $ | 104.73 |
Granted | 235,814 |  |  | $ | 154.89 |
Vested | (584,106) |  |  | $ | 100.08 |
Cancelled | (101,868) |  |  | $ | 129.84 |
Post-spin adjustment (1) | (65,727) |  |  | $ | — |
Outstanding at September 26, 2025 | 1,059,000 |  |  | $ | 116.76 |
(1)Represents the transfer of shares by the system administrator to SpinCo subsequent to September 27, 2024, the effective date of the Separation Transaction.
Schedule of Share-based Compensation, Stock Options, Activity | The following table summarizes the stock option activity for the years ended September 26, 2025, September 27, 2024 and September 29, 2023:
| Number of Stock Options |  | Weighted Average Exercise Price
Outstanding at September 30, 2022 | 439,349 |  |  | $ | 35.77 |
Exercised | (215,649) |  |  | $ | 40.61 |
Cancelled or expired | (6,219) |  |  | $ | 19.73 |
Outstanding at September 29, 2023 | 217,481 |  |  | $ | 31.43 |
Exercised | (132,898) |  |  | $ | 37.25 |
Cancelled or expired | (7,608) |  |  | $ | 20.44 |
Adjustment to Jacobs awards related to the Separation Transaction (1) | 13,821 |  |  | $ | — |
Outstanding at September 27, 2024 | 90,796 |  |  | $ | 19.03 |
Exercised | (41,618) |  |  | $ | 28.45 |
Cancelled or expired | (841) |  |  | $ | 11.68 |
Outstanding at September 26, 2025 | 48,337 |  |  | $ | 11.03 |
(1)Represents the additional Jacobs stock options issued as a result of the equitable adjustments. The related exercise prices were also equitably adjusted.
Schedule of Intrinsic Value of Options | The following table presents the total intrinsic value of stock options exercised for the fiscal years ended September 26, 2025, September 27, 2024 and September 29, 2023 (in thousands):
For the Years Ended
September 26, 2025 |  | September 27, 2024 |  | September 29, 2023
$4,257 |  | $13,790 |  | $17,635
Schedule of 2023 SIP, 1999 OSDP and StreetLight Plan | The following table presents certain other information regarding our 2023 SIP, 1999 OSDP and StreetLight Plan for the fiscal years ended September 26, 2025, September 27, 2024 and September 29, 2023:
| September 26, 2025 |  | September 27, 2024 |  | September 29, 2023
At fiscal year end: |  |  |  |  |
Range of exercise prices for options exercisable | $9.55 – $13.14 |  | $9.55 – $36.73 |  | $5.64 – $60.43
Number of options exercisable | 47,746 |  |  | 80,509 |  |  | 180,911 |
For the fiscal year: |  |  |  |  |
Range of prices relating to options exercised | $9.55 - $36.73 |  | $5.64 - $60.43 |  | $7.05 - $60.43
Schedule of Information Regarding Outstanding Options | The following table presents certain information regarding stock options outstanding at September 26, 2025:
| September 26, 2025
| Options Outstanding
Range of Exercise Prices | Number |  | Weighted Average Remaining Contractual Life (years) |  | Weighted Average Price
$9.55 - $13.14 | 48,337 |  |  | 5 |  | $ | 11.03 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity | The following table presents the number of shares of restricted stock and restricted stock units issued as common stock under the 2023 SIP for the years ended September 26, 2025, September 27, 2024 and September 29, 2023:
| For the Years Ended
| September 26, 2025 |  | September 27, 2024 |  | September 29, 2023
Restricted stock units (service condition) | 162,768 |  |  | 258,720 |  |  | 996,345 |
Restricted stock units (service and performance conditions) | 108,146 |  |  | 115,582 |  |  | 126,595 |
The following table presents the number of shares of restricted stock and restricted stock units canceled and withheld for taxes under the 2023 SIP for the years ended September 26, 2025, September 27, 2024 and September 29, 2023:
| For the Years Ended
| September 26, 2025 |  | September 27, 2024 |  | September 29, 2023
Restricted stock units (service condition) | 212,284 |  |  | 277,869 |  |  | 94,249 |
Restricted stock units (service and performance conditions) | 91,848 |  |  | 101,397 |  |  | 39,295 |
The following table provides the number of restricted stock units outstanding at September 26, 2025 under the 2023 SIP.
| September 26, 2025
Restricted stock units (service condition) | 674,965 |
Restricted stock units (service and performance conditions) | 307,554 |
The following table presents the number of shares of restricted stock and restricted stock units issued under the 1999 ODSP for the years ended September 26, 2025, September 27, 2024 and September 29, 2023:
| For the Years Ended
| September 26, 2025 |  | September 27, 2024 |  | September 29, 2023
Restricted stock units (service condition) | 12,962 |  |  | 15,647 |  |  | 14,031 |
The following table provides the number of shares of restricted stock and restricted stock units outstanding at September 26, 2025 under the 1999 ODSP:
| September 26, 2025
Restricted stock units (service condition) | 76,481 |
Schedule of fair value of shares of the 2023 SIP and StreetLight Plan | The following table presents the fair value of shares of the 2023 SIP and the StreetLight Plan (of restricted stock and restricted stock units) vested for the years ended September 26, 2025, September 27, 2024 and September 29, 2023 (in thousands):
| For the Years Ended
| September 26, 2025 |  | September 27, 2024 |  | September 29, 2023
Restricted Stock and Restricted Stock Units (service condition) | $ | 45,415 |  |  | $ | 75,625 |  |  | $ | 32,255 |
Restricted Stock Units (service, market, and performance conditions at target) | 12,258 |  |  | 23,286 |  |  | 22,060 |
Total | $ | 57,673 |  |  | $ | 98,911 |  |  | $ | 54,315 |

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