Company: KITTW
Filing Date: 2025-06-30
Form Type: 424B3
Source: 0001849820-25-000159
Chunk: 57

Company: Nauticus Robotics, Inc.
Filing Date: 2025-06-30
Form: 424B3
Chunk 57
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 other than those documents or the portions of those documents not deemed to be filed, including information furnished under Item 2.02 or Item 7.01 of Form 8-K and any corresponding information furnished with respect to such Items under Item 9.01 or as an exhibit):

| ● 
 ● |     | our Annual Report on Form 10-K for fiscal year ended December 31, 2024, filed with the SEC on April 15, 2025;      
 our Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2025, filed with the SEC on May 14, 2025; |
|:--|:----|:-------------------------------------------------------------------------------------------------------------------|
| ● |     | our definitive proxy statement on Schedule 14A filed with the SEC on April 29, 2025;                               |

We also incorporate by reference into this prospectus all reports and documents that we may file with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of the initial registration statement and prior to effectiveness of the registration statement and after the date of this prospectus but prior to the termination of the offering of the securities hereunder, but excluding any information deemed furnished and not filed with the SEC.

### LEGAL MATTERS
The validity of any securities offered from time to time by this prospectus and any related prospectus supplement will be passed upon for us by Norton Rose Fulbright US LLP, Houston, Texas. Any underwriters, dealers, or agents will be advised about other issues relating to any offering by their own legal counsel named in the applicable prospectus supplement.

### EXPERTS
The consolidated financial statements of Nauticus Robotics, Inc. as of December 31, 2024 and 2023 and for the years then ended incorporated by reference have been so included in reliance on the report of Whitley Penn LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

<div align='center'>$100,000,000 Common Stock Preferred Stock</div>

#### Depositary Shares

#### Warrants
<div align='center'>28</div>

#### Rights

#### Units

#### Nauticus Robotics, Inc.

### PROSPECTUS
<div align='center'>May 29, 2025

29</div>