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Stockholders' Deficit (Tables) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2024 | Sep. 30, 2025
Stockholders’ Deficit [Abstract] |  |
Schedule of Shares of Common Stock Reserved for Future Issuance | The following shares of common stock are reserved for future issuance:
Convertible notes payable |  |  | 464,217 |
Stock options issued and outstanding under Old Nukk equity incentive plan |  |  | 4,823 |
Stock purchase warrants |  |  | 5,465,249 |
|  |  | 5,934,289 |
| The following shares of common stock are reserved for future issuance:
Stock options issued and outstanding |  |  | 4,823 |
Stock purchase warrants |  |  | 6,497,072 |
|  |  | 6,501,895 |
Schedule of Shares of Common Stock Issuable upon Exercise of Warrants Outstanding | The following table summarizes the shares of the Company’s common stock issuable upon exercise of warrants outstanding at December 31, 2024:
|  | Warrants Outstanding |
|  | Range of Exercise Price |  |  | Number Outstanding at December 31, 2024 |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Weighted Average Exercise Price |
Public and Private Warrants |  | $ | 92.00 |  |  |  | 837,625 |  |  |  | 0.61 |  |  | $ | 14.10 |
April 2024 Warrants |  |  | 6.88 |  |  |  | 14,535 |  |  |  | 0.01 |  |  |  | 0.02 |
June 2024 Warrants |  |  | 2.00 |  |  |  | 150,000 |  |  |  | 0.12 |  |  |  | 0.05 |
August 2024 Warrants |  |  | 2.00 |  |  |  | 175,000 |  |  |  | 0.15 |  |  |  | 0.06 |
November 2024 Warrant |  |  | 2.41 |  |  |  | 351,424 |  |  |  | 0.31 |  |  |  | 0.15 |
Pre-funded Warrants |  |  | 0.0001 |  |  |  | 1,436,666 |  |  |  | 1.30 |  |  |  | 0.00 |
Private Placement Warrant |  |  | 6.00 |  |  |  | 2,499,999 |  |  |  | 2.27 |  |  |  | 2.74 |
|  | $ | 0.0001 – 92.00 |  |  |  | 5,465,249 |  |  |  | 4.77 |  |  | $ | 17.12 |
The following table summarizes the shares of the Company’s common stock issuable upon exercise of warrants outstanding at September 30, 2024:
|  | Warrants Outstanding |
|  | Range of Exercise Price |  |  | Number Outstanding at September 30, 2024 |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Weighted Average Exercise Price |
Public and Private Warrant |  | $ | 92.00 |  |  |  | 837,625 |  |  |  | 3.02 |  |  | $ | 65.46 |
April 2024 Warrant |  |  | 6.88 |  |  |  | 14,535 |  |  |  | 0.03 |  |  |  | 0.08 |
June 2024 Warrant |  |  | 2.00 |  |  |  | 150,000 |  |  |  | 0.61 |  |  |  | 0.25 |
August 2024 Warrant |  |  | 2.00 |  |  |  | 175,000 |  |  |  | 0.72 |  |  |  | 0.30 |
|  | $ | 2.00 – 92.00 |  |  |  | 1,177,160 |  |  |  | 4.38 |  |  | $ | 66.09 |
| The following table summarizes the shares of the Company’s common stock issuable upon exercise of warrants outstanding at September 30, 2025:
|  | Warrants Outstanding |
|  | Range of Exercise Price |  |  | Number Outstanding at September 30, 2025 |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Weighted Average Exercise Price |
Public and Private Warrants |  | $ | 92.00 |  |  |  | 837,625 |  |  |  | 0.42 |  |  | $ | 11.86 |
April 2024 Warrants |  |  | 6.88 |  |  |  | 14,535 |  |  |  | 0.00 |  |  |  | 0.02 |
June 2024 Warrants |  |  | 2.00 |  |  |  | 150,000 |  |  |  | 0.09 |  |  |  | 0.05 |
November 2024 Warrant |  |  | 2.41 |  |  |  | 351,424 |  |  |  | 0.22 |  |  |  | 0.13 |
August 2025 Pre-funded Warrants |  |  | 0.0001 |  |  |  | 1,702,088 |  |  |  | 1.27 |  |  |  | 0.00 |
August 2025 Warrant |  |  | 4.40 |  |  |  | 250,000 |  |  |  | 0.19 |  |  |  | 0.17 |
September 2025 Private Placement Warrant |  |  | 5.405 |  |  |  | 3,191,400 |  |  |  | 2.42 |  |  |  | 2.65 |
|  | $ | 0.0001 – 92.00 |  |  |  | 6,497,072 |  |  |  | 4.62 |  |  | $ | 14.88 |
The following table summarizes the shares of the Company’s common stock issuable upon exercise of warrants outstanding at December 31, 2024:
|  | Warrants Outstanding |
|  | Range of Exercise Price |  |  | Number Outstanding at December 31, 2024 |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Weighted Average Exercise Price |
Public and Private Warrants |  | $ | 92.00 |  |  |  | 837,625 |  |  |  | 0.61 |  |  | $ | 14.10 |
April 2024 Warrants |  |  | 6.88 |  |  |  | 14,535 |  |  |  | 0.01 |  |  |  | 0.02 |
June 2024 Warrants |  |  | 2.00 |  |  |  | 150,000 |  |  |  | 0.12 |  |  |  | 0.05 |
August 2024 Warrants |  |  | 2.00 |  |  |  | 175,000 |  |  |  | 0.15 |  |  |  | 0.06 |
November 2024 Warrant |  |  | 2.41 |  |  |  | 351,424 |  |  |  | 0.31 |  |  |  | 0.15 |
Pre-funded Warrants |  |  | 0.0001 |  |  |  | 1,436,666 |  |  |  | 1.30 |  |  |  | 0.00 |
Private Placement Warrant |  |  | 6.00 |  |  |  | 2,499,999 |  |  |  | 2.27 |  |  |  | 2.74 |
|  | $ | 0.0001 – 92.00 |  |  |  | 5,465,249 |  |  |  | 4.77 |  |  | $ | 17.12 |
Schedule of Warrant Activities | Warrant activities for the three months ended December 31, 2024 and the years ended September 30, 2024 and 2023 were as follows:
|  | Number of Options |  |  | Weighted Average Exercise Price |
Outstanding at September 30, 2022 |  |  | 837,625 |  |  | $ | 92.00 |
Issued |  |  | — |  |  |  | — |
Outstanding at September 30, 2023 |  |  | 837,625 |  |  |  | 92.00 |
Issued |  |  | 339,535 |  |  |  | 2.21 |
Outstanding at September 30, 2024 |  |  | 1,177,160 |  |  |  | 66.10 |
Issued |  |  | 2,851,423 |  |  |  | 4.83 |
Outstanding at December 31, 2024 |  |  | 4,028,583 |  |  | $ | 22.73 |
| Warrant activities for the nine months ended September 30, 2025 were as follows:
|  | Number of Options |  |  | Weighted Average Exercise Price |
Outstanding at December 31, 2024 |  |  | 5,465,249 |  |  |  | 17.12 |
Granted |  |  | 5,143,488 |  |  |  | 3.57 |
Exercised |  |  | (4,111,665 | ) |  |  | 3.73 |
Outstanding at September 30, 2025 |  |  | 6,497,072 |  |  | $ | 14.88 |
Schedule of Issued Shares of Common Stock Consideration for Services Rendered Valued at Fair Market Value on the Grant | During the three months ended December 31, 2024, the Company issued shares of its common stock to settle obligations to vendors at fair value on the grant dates using the reported closing share price on the dates of grant as follows:
|  | Common stock shares |  |  | Fair value |  |  | Carrying value obligation |  |  | Gain (loss) on extinguishment |
October 2024 |  |  | 100,000 |  |  | $ | 200,000 |  |  | $ | 140,000 |  |  | $ | (60,000 | )
November 2024 |  |  | 254,660 |  |  |  | 559,993 |  |  |  | 392,000 |  |  |  | (167,993 | )
|  |  | 354,660 |  |  | $ | 759,993 |  |  | $ | 532,000 |  |  | $ | (227,993 | )
During the year ended September 30, 2024, the Company issued shares of its common stock to settle obligations to vendors were valued at fair value on the grant dates using the reported closing share prices on the dates of grant as follows:
|  | Common stock shares |  |  | Fair value |  |  | Carrying value obligation |  |  | Gain (loss) on extinguishment |
January 2024 |  |  | 25,338 |  |  | $ | 750,000 |  |  | $ | 750,000 |  |  | $ | — |
May 2024 |  |  | 87,500 |  |  |  | 501,000 |  |  |  | 324,601 |  |  |  | (176,399 | )
July 2024 |  |  | 148,694 |  |  |  | 374,788 |  |  |  | 262,352 |  |  |  | (112,436 | )
July 2024 |  |  | 37,500 |  |  |  | 95,400 |  |  |  | 252,000 |  |  |  | 156,600 |
July 2024 |  |  | 37,500 |  |  |  | 95,400 |  |  |  | 150,000 |  |  |  | 54,600 |
July 2024 |  |  | 25,000 |  |  |  | 63,600 |  |  |  | 63,600 |  |  |  | — |
|  |  | 361,532 |  |  | $ | 1,880,188 |  |  | $ | 1,802,553 |  |  | $ | (77,635 | )

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