UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 SEACOR Marine Holdings Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 47-2564547 (State or Other Jurisdic ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 SEACOR Marine Holdings Inc. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) 12121 Wickchester Lane, Suite 500, Houston, TX 77079 (Address of Principal Execut ...

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SECURITIES EXCHANGE ACT OF 1934 (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 SEACOR Marine Holdings Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 47-2564547 (Sta ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 SEACOR Marine Holdings Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 47-2564547 (State or Other Jur ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 SEACOR Marine Holdings Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 47-2564547 (State or Other Jurisdi ...

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 SEACOR Marine Holdings Inc. (Exact name of ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 SEACOR Marine Holdings Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 47-2564547 (State or Other Jurisdiction of Incorporation or Organization) WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the q ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-37966 SEACOR Marine Holdings Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 47-2564547 (State or Other Jurisdic ...

Part I. [Financial Information](index=3&type=section&id=Part%20I.%20Financial%20Information) [Financial Statements (Unaudited)](index=3&type=section&id=Item%201.%20Financial%20Statements%20%28Unaudited%29) Q1 2021 net income of **$6.0 million** from a **$20.0 million** loss in Q1 2020, driven by asset sale gain and increased cash Condensed Consolidated Balance Sheet Summary (in thousands) | Account | March 31, 2021 | December 31, 2020 | | :--- | :--- | :--- | | **Total Current Assets** | $149,857 | $178,696 | | **Net Property and Equipment** | $735,168 | $753,662 | | **Total Assets** | **$973,816** | **$1,017,663** | | **Total Current Liabilities** | $91,220 | $131,804 | | **Total Liabilities** | $564,657 | $615,827 | | **Total Equity** | **$409,159** | **$401,836** | | **Total Liabilities and Equity** | **$973,816** | **$1,017,663** | Condensed Consolidated Statements of Income (Loss) Summary (in thousands) | Account | Three Months Ended March 31, 2021 | Three Months Ended March 31, 2020 | | :--- | :--- | :--- | | **Operating Revenues** | $36,512 | $35,667 | | **Operating Loss** | $(16,555) | $(23,721) | | **Loss from Continuing Operations** | $(16,914) | $(17,938) | | **Income (Loss) on Discontinued Operations** | $22,925 | $(2,054) | | **Net Income (Loss)** | **$6,011** | **$(19,992)** | | **Net Income (Loss) attributable to SEACOR Marine** | **$6,011** | **$(15,945)** | | **EPS (Basic and Diluted)** | **$0.24** | **$(0.66)** | Condensed Consolidated Statements of Cash Flows Summary (in thousands) | Cash Flow Activity | Three Months Ended March 31, 2021 | Three Months Ended March 31, 2020 | | :--- | :--- | :--- | | **Net cash used in operating activities** | $(3,375) | $(11,138) | | **Net cash provided by investing activities** | $39,440 | $3,552 | | **Net cash used in financing activities** | $(8,292) | $(5,069) | | **Net Increase (Decrease) in Cash** | **$32,223** | **$(14,474)** | - On January 12, 2021, the company completed the sale of Windcat Workboats Holdings Ltd., recognizing a gain of approximately **$22.8 million**. Net proceeds from the sale were **$38.7 million**[47](index=47&type=chunk) [Management's Discussion and Analysis of Financial Condition and Results of Operations](index=25&type=section&id=Item%202.%20Management%27s%20Discussion%20and%20Analysis%20of%20Financial%20Condition%20and%20Results%20of%20Operations) Market challenges persist, but liquidity is strong; the SEACOR Power capsizing incident poses significant risks - On April 13, 2021, the liftboat SEACOR Power capsized off the coast of Louisiana, resulting in multiple fatalities, the **constructive total loss** of the vessel, and **significant ongoing investigations** by the NTSB and U.S. Coast Guard. The company anticipates **substantial costs, potential liabilities, and reputational impact** from this incident[95](index=95&type=chunk)[96](index=96&type=chunk) - The company completed the sale of its Windcat Workboats crew transfer vessel (CTV) business on January 12, 2021, for a purchase price of **£32.8 million**, receiving net cash proceeds of approximately **US$42.6 million**[97](index=97&type=chunk) - The company received an aggregate of **$32.3 million** in cash tax refunds under the CARES Act, with **$12.5 million** received before March 31, 2021, and the remaining **$19.8 million** received in April 2021[99](index=99&type=chunk) Consolidated Results of Operations Summary (in thousands) | Metric | Q1 2021 | Q1 2020 | | :--- | :--- | :--- | | **Operating Revenues** | $36,512 | $35,667 | | **Operating Loss** | $(16,555) | $(23,721) | | **Net Income (Loss) attributable to SEACOR Marine** | $6,011 | $(15,945) | | **Direct Vessel Profit (DVP)** | $10,205 | $14,932 | [Operating Income (Loss) by Segment](index=34&type=section&id=Operating%20Income%20%28Loss%29%20by%20Segment) Segment DVP varied: U.S. Gulf of Mexico and Africa/Europe declined, Middle East/Asia fell, Latin America improved Direct Vessel Profit (DVP) by Geographic Segment (in thousands) | Region | Q1 2021 DVP | Q1 2020 DVP | Change | | :--- | :--- | :--- | :--- | | **United States (Gulf of Mexico)** | $(1,312) | $401 | $(1,713) | | **Africa and Europe** | $3,934 | $7,959 | $(4,025) | | **Middle East and Asia** | $3,353 | $5,029 | $(1,676) | | **Latin America** | $4,230 | $1,543 | $2,687 | - In the U.S. Gulf of Mexico, charter revenues fell by **$2.9 million** due to vessel repositioning and changes in fleet mix, leading to a DVP loss of **$1.3 million**[108](index=108&type=chunk)[109](index=109&type=chunk) - In Latin America, charter revenues increased by **$6.3 million**, primarily due to net fleet additions, which drove a DVP increase of **$2.7 million**[117](index=117&type=chunk)[118](index=118&type=chunk) [Liquidity and Capital Resources](index=39&type=section&id=Liquidity%20and%20Capital%20Resources) Strong liquidity with **$71.8 million** cash, bolstered by asset sale and tax refund, sufficient to meet obligations - As of March 31, 2021, the company held **$71.8 million** in cash, cash equivalents, restricted cash, and construction reserve funds. An additional **$19.8 million** in tax refunds was received in April 2021[132](index=132&type=chunk) - Unfunded capital commitments totaled **$10.1 million** for one PSV and other equipment, with **$9.2 million** payable in the remainder of 2021. An additional **$9.5 million** order for one FSV has been indefinitely deferred[130](index=130&type=chunk) Contractual Long-Term Debt Maturities (in thousands) | Period | Amount | | :--- | :--- | | Remainder 2021 | $25,356 | | 2022 | $38,484 | | 2023 | $243,703 | | 2024 | $134,523 | | 2025 | $11,365 | | Subsequent to 2025 | $60,144 | | **Total** | **$513,575** | [Quantitative and Qualitative Disclosures About Market Risk](index=42&type=section&id=Item%203.%20Quantitative%20and%20Qualitative%20Disclosures%20About%20Market%20Risk) No material change in market risk exposure during Q1 2021 compared to the 2020 Annual Report disclosures - There has been **no material change** in the Company's exposure to market risk during the three months ended March 31, 2021[144](index=144&type=chunk) [Controls and Procedures](index=43&type=section&id=Item%204.%20Controls%20and%20Procedures) Management concluded disclosure controls and procedures were effective as of March 31, 2021, with no material changes - The Company's principal executive officer and principal financial officer concluded that the Company's disclosure controls and procedures were **effective** as of March 31, 2021[145](index=145&type=chunk) - **No changes occurred** in the Company's internal control over financial reporting during the quarter that have materially affected, or are reasonably likely to materially affect, the controls[147](index=147&type=chunk) Part II. [Other Information](index=44&type=section&id=Part%20II.%20Other%20Information) [Legal Proceedings](index=44&type=section&id=Item%201.%20Legal%20Proceedings) Refers to Note 9 for legal proceedings, including a Brazilian tax notice and the SEACOR Power capsizing incident - For information on legal proceedings, the report directs readers to "**Note 9. Commitments and Contingencies**" in the financial statements[149](index=149&type=chunk) [Risk Factors](index=44&type=section&id=Item%201A.%20Risk%20Factors) Updated risk factors highlight the SEACOR Power capsizing, detailing investigations, litigation, and financial impact - The capsizing of the SEACOR Power on April 13, 2021, resulted in the **death of several crew members** and the **total loss of the vessel**. The company is responsible for **costly and lengthy salvage operations**[152](index=152&type=chunk) - The incident is under investigation by the NTSB and U.S. Coast Guard, which could take **two years or longer** and may result in **fines, penalties, or operating restrictions**[153](index=153&type=chunk) - Several civil lawsuits have been filed against the company by family members of deceased crew members, and more are possible. The outcome and potential losses are **uncertain but could be significant**[154](index=154&type=chunk) [Unregistered Sales of Equity Securities and Use of Proceeds](index=45&type=section&id=Item%202.%20Unregistered%20Sales%20of%20Equity%20Securities%20and%20Use%20of%20Proceeds) Company acquired **51,933** shares for **$261,433** to cover tax obligations from equity incentive plan vesting Common Stock Purchases in Q1 2021 | Period | Total Shares Withheld | Average Price per Share | | :--- | :--- | :--- | | Jan 1 - Jan 31, 2021 | 14,199 | $3.34 | | Feb 1 - Feb 28, 2021 | — | — | | Mar 1 - Mar 31, 2021 | 37,734 | $5.67 | | **Total Q1 2021** | **51,933** | **N/A** | [Exhibits](index=46&type=section&id=Item%206.%20Exhibits) Lists exhibits filed with Form 10-Q, including credit facility amendments, officer certifications, and XBRL data files - **Key exhibits filed** include amendments to a credit facility (**Exhibit 10.01**), CEO and CFO certifications (**Exhibits 31.1, 31.2, 32**), and interactive data files (**Exhibits 101, 104**)[163](index=163&type=chunk)