13D Filings
NAUTICUS ROBOTICS, INC.
KITT
Amendment
Ownership

0.10%

Total Shares

6,421

Issuer CIK

1849820

CUSIP

63911H306

Event Date

Nov 27, 2025

Accepted

Dec 4, 2025, 05:19 PM

Reporting Persons (2)
Joint Filing

This is a joint filing. The reported shares may overlap between reporting persons and should not be summed.

NameType% of ClassAggregateSole VotingShared Voting
Transocean Ltd.
CO
0.10%6,42106,421
Transocean International Limited
CO
0.10%6,42106,421
Disclosure Items (4)

Security Title

Common stock, par value $0.0001 per share

Issuer Name

NAUTICUS ROBOTICS, INC.

Issuer Address

17146 FEATHERCRAFT LANE, WEBSTER, TX, 77598

Item 3 is deleted in its entirety and replaced with the following: The shares reported herein as being beneficially owned by the Reporting Persons are the Earnout Shares.

Percentage of Class

Item 5 is deleted in its entirety and replaced with the following: As of the date hereof, Transocean International Limited beneficially owns 6,421 shares of the Issuer, constituting approximately 0.047% of the 13,710,615 shares of the Issuer outstanding as of November 13, 2025, as disclosed by the Issuer in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on November 14, 2025, including the Earnout Shares in accordance with Rule 13d-3(d)(1)(i). Because Transocean Ltd. controls Transocean International Limited, both Transocean Ltd. and Transocean International Limited are deemed to beneficially own the shares of the Issuer that Transocean International Limited holds directly or has a right to acquire. The percentage beneficially owned reported herein is based on 13,710,615 shares of the Issuer outstanding as of November 13, 2025, as disclosed by the Issuer in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on November 14, 2025, including the Earnout Shares in accordance with Rule 13d-3(d)(1)(i).

Number of Shares

Transocean Ltd. and Transocean International Limited have shared voting and dispositive power over the shares of the Issuer beneficially owned by Transocean International Limited.

Transactions

Except as described herein, the Reporting Persons have not effected any reportable transactions in the shares of the Issuer within the last 60 days: (1) on November 28, 2025, Transocean International Limited sold 28,185 shares of the Issuer in the open market at a price of $0.90 per share of the Issuer; (2) on December 1, 2025, Transocean International Limited sold 61,351 shares of the Issuer in the open market at a price of $0.81 per share of the Issuer; (3) on December 2, 2025, Transocean International Limited sold 32,839 shares of the Issuer in the open market at a price of $0.74 per share of the Issuer; and (4) on December 3, 2025, Transocean International Limited sold 2,021,920 shares of the Issuer in the open market at a price of $1.02 per share of the Issuer (collectively, the "Sale Transactions").

Shareholders

Except as set forth herein, no other person is known by the Reporting Persons to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such shares of the Issuer owned by the Reporting Persons.

Date of 5% Ownership

As a result of the Sale Transactions, on December 3, 2025, each of the Reporting Persons ceased to be a benefical owner of more than 5% of the outstanding shares of the Issuer based on the 13,710,615 shares of the Issuer outstanding as of November 13, 2025, as disclosed by the Issuer in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on November 14, 2025, including the Earnout Shares in accordance with Rule 13d-3(d)(1)(i).

Item 7 is supplemented to incorporate herein by reference that certain Limited Power of Attorney for SEC Reporting Purposes, dated effective as of January 7, 2025, filed as Exhibit 99.1 to the Prior 13D.

NAUTICUS ROBOTICS, INC. — Schedule 13D | 13D Filings