Entry into a Material Definitive Agreement Third Amendment to the Term Loan Agreement As previously disclosed by the Company in its filings with the SEC, pursuant to the terms of the Senior Secured Term Loan Agreement, dated as of September 18, 2023 (as amended, restated, amended and restated, restructured, supplemented, waived and/or otherwise modified from time to time, the “Term Loan Agreement”), by and among the Company, as borrower, the lenders from time to time party thereto (the “Lende…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. On July 20, 2026, the Company issued an Original Issue Discount Senior Secured Convertible Debenture Due 2026, in the aggregate principal amount of $1,500,000.00 (the “Additional Note”), to an institutional investor ("Investor"), which is convertible into 197,369 shares of common stock of the Company calculated at a conversion price of $7.60. The Additional Note was issued pursua…

Unregistered Sales of Equity Securities . The information set forth under

Material Modification to Rights of Security Holders. The information set forth in

Unregistered Sales of Equity Securities . The information set forth in

Entry into a Material Definitive Agreement. On June 26, 2026, Nauticus Robotics, Inc. (the “Company”) entered into an Exchange Agreement (the “Exchange Agreement”) with a certain institutional investor (the “Holder”). The Exchange Agreement relates to the Senior Secured Term Loan Agreement, dated September 18, 2023, as amended (the “Term Loan Agreement”), by and among the Company and certain institutional investors. Pursuant to the Exchange Agreement, the Holder may exchange in one or more ex…

The filing pertains to an amendment of a compensatory plan, not a management change.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Entry into a Material Definitive Agreement Third Amendment to the Term Loan Agreement As previously disclosed by the Company in its filings with the SEC, pursuant to the terms of the Senior Secured Term Loan Agreement, dated as of September 18, 2023 (as amended, restated, amended and restated, restructured, supplemented, waived and/or otherwise modified from time to time, the “Term Loan Agreement”), by and among the Company, as borrower, the lenders from time to time party thereto (the “Lende…

Entry into a Material Definitive Agreement Amendment No. 2 to the Asset Purchase Agreement As previously disclosed, on March 5, 2025, Nauticus Robotics, Inc. a Delaware corporation (the “Company”), and SeaTrepid International, L.L.C., a Louisiana limited liability company, SeaTrepid Deepsea LLC, a Louisiana limited liability company, Remote Inspection Technologies, L.L.C., a Louisiana limited liability company (each, a “Seller” and collectively, “Sellers”), and certain individual selling pers…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. On May 12, 2026, the Company issued an Original Issue Discount Senior Secured Convertible Debenture Due 2026, in the aggregate principal amount of $1,556,122.00 (the “Additional Note”), to an institutional investor (“Investor”), which is convertible into 204,753 shares of common stock of the Company calculated at a conversion price of $7.60. The Additional Note was issued pursuan…

Material Modification to Rights of Security Holders. To the extent required by

Material Modification to Rights of Security Holders. To the extent required by

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant As previously disclosed, on March 5, 2025, Nauticus Robotics, Inc., a Delaware corporation (the “Company”), and SeaTrepid International, L.L.C., a Louisiana limited liability company, SeaTrepid Deepsea LLC, a Louisiana limited liability company, Remote Inspection Technologies, L.L.C., a Louisiana limited liability company (each, a “Seller” and collectively, “Sellers”), and certain…

Entry into a Material Definitive Agreement. The information set forth under

and to update the language regarding the incorporation by reference under Item 1.01, to refer to the

Unregistered Sale of Equity Securities . As previously disclosed by the Company in its filings with the SEC, on December 3, 2025, the Company entered into those certain Amendment and Exchange Agreements (collectively, the “Exchange Agreements”), by and among the Company and certain institutional investors (each, an “Investor”), pursuant to which each Investor may exchange (each, an "Exchange"), in one or more exchanges, certain original issue discount senior secured convertible debentures due…

General Counsel and Secretary — John Symington: John Symington resigned to return to private practice.

Unregistered Sales of Equity Securities . The information set forth under

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. On March 10, 2026, the Company issued an Original Issue Discount Senior Secured Convertible Debenture Due 2026, in the aggregate principal amount of $1,020,408.00 (the “Additional Note”), to an institutional investor ("Investor"), which is convertible into 1,717,281 shares of common stock of the Company calculated at a conversion price of $0.5942. The Additional Note was issued p…

Material Modification to Rights of Security Holders. The information set forth in

Entry into a Material Definitive Agreement. Securities Purchase Agreement On February 6, 2026, Nauticus Robotics, Inc., a Delaware corporation (the “Company”), entered into a Securities Purchase Agreement (the “Purchase Agreement”) and a registration rights agreement (the “Registration Rights Agreement”) with Master Investment Group (“Investor”), pursuant to which the Company agreed to issue and sell in a private offering to Investor, (1) certain shares of Series D Convertible Preferred Stock…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant On February 9, 2026, the Company issued an Original Issue Discount Senior Secured Convertible Debenture Due 2026, in the aggregate principal amount of $2,000,000.00 (the “Additional Note”), to an institutional investor ("Investor"), which is convertible into 3,365,871 shares of common stock of the Company calculated at a conversion price of $0.5942. The Additional Note was issued…

Unregistered Sales of Equity Securities . The information set forth under