SCHEDULE 13D

CUSIP No.

63911H207

Name of reporting person

KERBER WILLIAM XAVIER III

Check the appropriate box if a member of a Group (See Instructions)

(a)

(b)

SEC use only

Source of funds (See Instructions)

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

Checkbox not checked

Citizenship or place of organization

OKLAHOMA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 1,852,696.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 1,852,696.00
10	Shared Dispositive Power 0.00

Aggregate amount beneficially owned by each reporting person

1,852,696.00

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in Row (11)

4.4 %

Type of Reporting Person (See Instructions)

SCHEDULE 13D

Item 1.

Security and Issuer

(a)

Title of Class of Securities:

Common Stock

(b)

Name of Issuer:

Nauticus Robotics, Inc.

(c)

Address of Issuer's Principal Executive Offices:

17146 FEATHERCRAFT LANE, 17146 FEATHERCRAFT LANE, WEBSTER, TEXAS , 77598.

Item 2.

Identity and Background

(a)

WILLIAM XAVIER KERBER III

(b)

3917 NE 104TH ST Oklahoma City, OK. 73131

(c)

CEO Human Mode LLC 3917 NE 104TH ST Oklahoma City, OK. 73131

(d)

During the past 5 years, Mr. Kerber has not been convicted in any criminal proceeding (excluding traffic violations or similar misdemeanors).

(e)

During the past 5 years, Mr. Kerber has not been a party to any civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding such person was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

(f)

United States

Item 3.

Source and Amount of Funds or Other Consideration

All of the shares of Common Stock were acquired using Mr. Kerber's personal funds. No loans were involved in these purchases.

Item 4.

Purpose of Transaction

As of the Issuer's recent 10-Q filing dated August 11, 2025 the Issuer stated total outstanding Common Stock of 42,267,643 shares. Mr. Kerber beneficially owns 1,852,696 shares or 4.4% of of the Issuer's outstanding Common Stock and has ceased to be a beneficial owner of five percent or more as of the date of the Issuer's 10-Q filing dated August 11, 2025.

Item 5.

Interest in Securities of the Issuer

(a)

As of the date of this Amendment No. 4, Mr. Kerber beneficially owns 1,852,696 shares or 4.4% of the Issuer's outstanding shares of Common Stock. The beneficial ownership percentages used in this Schedule are calculated based on the 42,267,643 shares of Common Stock of the Issuer outstanding as stated in the Issuer's recent 10-Q filing dated August 11, 2025.

(b)

As of the date of this Amendment No. 4, Mr. Kerber has sole voting and dispositive power of the 1,852,696 shares or 4.4 % of the Issuer's Common Stock.

(c)

Mr. Kerber has not effected any transactions in the Common Stock during the past 60 days or since his most recent Schedule 13D filing dated April 10, 2025.

(e)

Mr. Kerber ceased to be a beneficial owner of five percent or more of the Issuer's Common Stock as of the Issuer's most recent 10-Q filing dated August 11, 2025.

Item 6.

Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer

As of the filing date of this Amendment, Mr. Kerber is not involved in any contracts, arrangements, under standings or relationships related to any securities of the Issuer.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

KERBER WILLIAM XAVIER III

Signature:	WILLIAM XAVIER KERBER III
Name/Title:	WILLIAM XAVIER KERBER III
Date:	08/13/2025