shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On July 29, 2026, SEACOR Marine Holdings Inc. (the “Company”) issued a press release setting forth its earnings for the three and six months ended June 30, 2026 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorpora…

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

Entry into a Material Definitive Agreement. On May 20, 2026, SEACOR Marine Holdings Inc. (the “Company”), as parent guarantor, and SEACOR Marine Foreign Holdings Inc., as borrower and wholly-owned subsidiary of the Company (“SMFH”), entered into a letter agreement (“Letter Agreement”) for the purposes of modifying that certain credit agreement, dated as of November 27, 2024, among the Company, SMFH, certain other wholly-owned subsidiaries of the Company, as subsidiary guarantors, an affiliate…

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On April 29, 2026, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three months ended March 31, 2026 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On February 25, 2026, SEACOR Marine Holdings Inc. (the “Company”) issued a press release setting forth its earnings for the three and twelve months ended December 31, 2025 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereb…

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On October 29, 2025, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three and nine months ended September 30, 2025 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by…

Completion of Acquisition or Disposition of Assets. On September 29, 2025, SEACOR Marine Holdings Inc. (the “Company”), through two wholly-owned subsidiaries, Falcon Global Jill LLC (“FG Jill LLC”) and Falcon Global Robert LLC (“FG Robert LLC” and, together with FG Jill LLC, the “Sellers”), respectively, completed the sale of the U.S. flag liftboat L/B Jill and the U.S. flag liftboat L/B Robert (together, the “Liftboat Sales”) pursuant to memorandum of agreements entered into on August 6, 202…

Entry into a Material Definitive Agreement. On August 6, 2025, SEACOR Marine Holdings Inc. (the “Company”), through two wholly-owned subsidiaries, Falcon Global Jill LLC (“FG Jill LLC”) and Falcon Global Robert LLC (“FG Robert LLC”), respectively, entered into memorandum of agreements for the sale of the U.S. flag liftboat L/B Jill (“Jill MOA”) and the U.S. flag liftboat L/B Robert (“Robert MOA,” and together with the Jill MOA, the “MOAs”). Aggregate gross proceeds under the MOAs are expected…

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On July 30, 2025, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three and six months ended June 30, 2025 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On April 30, 2025, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three months ended March 31, 2025 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.

Other Events. On April 4, 2025, SEACOR Marine Holdings Inc. (the “Company”) purchased from certain funds affiliated with Carlyle (the “Carlyle Investors”), 1,355,761 of the Company’s common shares, at $4.90 per share, and warrants to purchase 1,280,195 shares of Common Stock at an exercise price of $0.01 per share, at $4.89 per warrant, for an aggregate purchase price of approximately $12.9 million, representing approximately 9.1% of the outstanding shares of common stock of the Company assum…

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On February 26, 2025, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three and twelve months ended December 31, 2024 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated b…

shall not be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On December 2, 2024, SEACOR Marine Holdings Inc. posted an investor presentation to its website at https://ir.seacormarine.com/events-and-presentations . A copy of the investor presentation is attached hereto as Exhibit 99.1 and incorporated herein by reference. On December 2, 2024, the Company is…

Entry into a Material Definitive Agreement. On November 27, 2024, SEACOR Marine Holdings Inc. (the “Company”), as parent guarantor, SEACOR Marine Foreign Holdings Inc. (“SMFH”), as borrower, and certain other wholly-owned subsidiaries of the Company, as subsidiary guarantors, entered into a credit agreement providing for a senior secured term loan of up to $391.0 million (the “2024 SMFH Credit Facility” and such agreement, the “2024 SMFH Credit Agreement”) with an affiliate of EnTrust Global,…

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

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On October 30, 2024, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three and nine months ended September 30, 2024 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by…

Director — Lisa P. Young: Lisa P. Young was appointed to the Board of Directors and will serve on multiple committees.

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On July 31, 2024, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three and six months ended June 30, 2024 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On May 1, 2024, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three months ended March 31, 2024 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On February 29, 2024, SEACOR Marine Holdings Inc. (the “Company”) issued a press release setting forth its earnings for the three and twelve months ended December 31, 2023 (the “Earnings Release”). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereb…

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On November 1, 2023, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three and nine months ended September 30, 2023 (the "Earnings Release"). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.

Entry into a Material Definitive Agreement. SMFH Credit Facility On September 8, 2023, SEACOR Marine Holdings Inc. (the “Company”), as parent guarantor, SEACOR Marine Foreign Holdings Inc. (“SMFH”), as borrower, and certain other wholly-owned subsidiaries of the Company, as subsidiary guarantors, entered into a credit agreement providing for a $122.0 million senior secured term loan (the “SMFH Credit Facility” and such agreement, the “SMFH Credit Agreement”) with certain affiliates of EnTrust…

Regulation FD Disclosure. On September 11, 2023, the Company issued a press release announcing the execution of the SMFH Credit Facility. The press release is attached as Exhibit 99.1 hereto and is incorporated in this

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

shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. On August 2, 2023, SEACOR Marine Holdings Inc. issued a press release setting forth its earnings for the three and six months ended June 30, 2023 (the "Earnings Release"). A copy of the Earnings Release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.