Company: KITTW
Filing Date: 2025-01-16
Form Type: 424B3
Source: 0001849820-25-000028
Chunk: 2

Company: Nauticus Robotics, Inc.
Filing Date: 2025-01-16
Form: 424B3
Chunk 2
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 and was based on 15,750,085 shares outstanding held by non-affiliates, and a price per share of $5.11 which was the average of the bid and asked prices of our common stock on the Nasdaq Capital Market on January 6, 2025. Therefore, the one third limitation on sales specified in General Instruction I.B.6(a) will no longer apply to additional sales made pursuant to this registration statement, which this prospectus supplement forms part of, on or subsequent to such date. This prospectus supplement shall instead be considered filed pursuant to General Instruction I.B.1. Pursuant to this prospectus supplement and in accordance with the terms of the Sales Agreement, we may offer and sell shares of our common stock having an aggregate offering price of up to approximately $7.3 mi llion from time to time through Wainwright.

We are an emerging growth company and a smaller reporting company as defined under federal securities laws and, as such, may elect to comply with certain reduced public company reporting requirements for future filings. Investing in our securities involves certain risks. See “Risk Factors” on page S-4 of the prospectus supplement and on page 1 of the accompanying prospectus, and in the documents incorporated by reference herein and therein, for a discussion of the factors you should carefully consider before deciding to purchase our common stock.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE ADEQUACY OR ACCURACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

#### H.C. Wainwright

#### & Co.
<div align='center'>The date of this prospectus supplement is Janua ry 15, 2025.

S-ii</div>

### THE OFFERING
| Common stock offered by us                                    |     | Shares of our common stock having an offering price of up to$7,338,975 or up to 1,436,199 shares, assuming the sale price of $5.11 per share, which was the average of the bid and asked prices of our common stock on the Nasdaq on January 6, 2025. The actual number of shares issued will vary depending on the sales price under this offering.  From May 20, 2024 through the date hereof, the Company issued and sold 5,858,946