Company: KITTW
Filing Date: 2025-07-11
Form Type: S-8
Source: 0001849820-25-000167
Chunk: 0

Company: Nauticus Robotics, Inc.
Filing Date: 2025-07-11
Form: S-8
Chunk 0
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<div align='center'>As filed with the Securities and Exchange Commission on July 11, 2025</div>

Registration No. 333-

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, DC 20549

#### FORM S-8

### REGISTRATION STATEMENT

#### UNDER THE SECURITIES ACT OF 1933

#### NAUTICUS ROBOTICS, INC.
<div align='center'>(Exact name of registrant as specified in its charter)</div>

| Delaware                                                       |     |                          87-1699753 |
| (State or Other Jurisdiction of Incorporation or Organization) |     | -I.R.S. Employer Identification No. |
| 17146 Feathercraft Lane, Suite 450                             |     |                                     |
| Webster, Texas                                                 |     |                               77598 |
| (Address of Principal Executive Offices)                       |     |                           -Zip Code |

<div align='center'>NAUTICUS ROBOTICS, INC. 2022 OMNIBUS INCENTIVE PLAN, AS AMENDED

(Full Title of the Plan)</div>

#### John Symington

#### General Counsel

#### Nauticus Robotics, Inc.

#### 17146 Feathercraft Lane, Suite 450

#### Webster, Texas 77598
<div align='center'>(Name and Address of Agent for Service)

(281) 942-9069

(Telephone Number, including Area Code, of Agent for Service)

Copies to:</div>

#### Robert C. Morris

#### Brandon T. Byrne

#### Norton Rose Fulbright US LLP

#### Fulbright Tower

#### 1301 McKinney, Suite 5100

#### Houston, Texas 77010
<div align='center'>(713) 651-8404</div>

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

| Large Accelerated Filer  ☐ |     | Accelerated Filer  ☐         |
| Non-Accelerated Filer  ☒   |     | Smaller Reporting Company  ☒ |
|                            |     | Emerging Growth Company  ☒