Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Transocean Ltd. 2. Issuer Name and Ticker or Trading Symbol Nauticus Robotics, Inc. [KITT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) TURMSTRASSE 30 3. Date of Earliest Transaction (Month/Day/Year) 10/28/2025 (Street) STEINHAUSEN, V8 6312 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, par value U.S. $0.0001 10/28/2025 C 2,144,295(1) A $1.76 2,150,716(2) I(1) By Transocean International Limited

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Convertible Senior Secured Term Loan 2023(3)

$1.76

10/28/2025

C

$3,773,958

09/18/2023

09/18/2026

Common Stock, par value U.S. $0.0001

2,144,295(1)

$ 0

0

I(1)

By Transocean International Limited

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Transocean Ltd. TURMSTRASSE 30 STEINHAUSEN, V8 6312		X

Signatures

/s/ Daniel Ro-Trock, Assistant Corporate Secretary		10/31/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	These securities are owned directly by Transocean International Limited, a Bermuda exempted company limited by shares. Transocean International Limited is a wholly owned subsidiary of Transocean Ltd. Because Transocean Ltd. controls Transocean International Limited, both Transocean Ltd. and Transocean International Limited are deemed to beneficially own the shares of common stock that Transocean International Limited holds directly or has a right to acquire.
(2)	The amount reported also includes 6,421 additional shares (the "Earnout Shares") of the Issuer's common stock issuable to the Reporting Person on or before September 9, 2027, pursuant to certain earnout conditions, as described in the Merger Agreement (as defined in the Reporting Person's Form 3 filed on September 9, 2023).
(3)	The shares of the Issuer's common stock reported herein as being beneficially owned by the Reporting Person consists of the Earnout Shares and 2,144,295 shares of the Issuer's common stock acquired on October 28, 2025 (the "Conversion Shares") by Transocean International Limited in connection with the exercise of its right to convert $3,000,000 of outstanding principal amount of loans, together with accrued interest (the "Note Conversion"), made pursuant to that certain Senior Secured Term Loan Agreement, dated as of September 18, 2023, by and among the Issuer, the collateral agent and the other lenders party thereto (as amended, the "Convertible Note"). Loans made pursuant to the Convertible Note were convertible into shares of the Issuer's common stock at a conversion price of $1.76 per share.

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