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Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed in company reports filed or submitted under the Exchange Act is accumulated and communicated to management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.
−Removed: As required by Rules 13a-15 and 15d-15 under the Exchange Act, the Chief Executive Officer and Chief Financial Officer of YAC carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as of December 31, 2021.
−Removed: Based upon their evaluation, our former Co-Chief Executive Officers and Chief Financial Officer determined that our disclosure controls and procedures were effective at a reasonable level of assurance as of December 31, 2021..
−Removed: Internal Control over Financial Reporting
−Removed: Management’s Report on Internal Controls over Financial Reporting
+Added: Pursuant to Rules 13a-15 and 15d-15 under the Exchange Act, our Chief Executive Officer and Chief Financial Officer (our principal executive officer and principal financial officer, respectively), with the participation of other members of management, carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as of December 31, 2022.
+Added: Our management does not expect that our disclosure controls and procedures will prevent or detect all errors and all fraud.
+Added: Disclosure controls and procedures, no matter how well designed, operated and managed, can provide only reasonable assurance that the objectives of the disclosure controls and procedures are met.
+Added: Because of the inherent limitations of disclosure controls and procedures, no evaluation of such disclosure controls and procedures can provide absolute assurance that all control issues and instances of fraud, if any, have been detected.
+Added: Based upon this evaluation of our disclosure controls and procedures, our Chief Executive Officer and our Chief Financial Officer determined that our disclosure controls and procedures were effective as of December 31, 2022.
+Added: Management ’
+Added: s Report on Internal Controls over Financial Reporting
The Company’s management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act.
−Removed: In our amended 2020 Annual Report, filed on May 24, 2021, our former management identified a material weakness existing as of December 31, 2020.
−Removed: Our former management, including the Co-Chief Executive Officers and the Chief Financial Officer of Yellowstone Acquisition Company, had concluded, and certified to the Company, that they had remediated the previously disclosed material weakness related to the design and implementation of controls addressing the industry-wide issues and related insufficient risk assessment of the underlying accounting for certain instruments.
−Removed: The remediation efforts involved designing and implementing enhancements to internal control over financial reporting including those related to special purpose acquisition companies and expanding the use of specialist involvement in highly complex and technical areas of accounting, including transactions related to special purpose acquisition companies.
−Removed: Our former management performed testing to verify the effective design and successful operating effectiveness of the new or enhanced controls, based upon criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013).
−Removed: As a result, our former management determined that our internal controls over financial reporting were effective as of December 31, 2021.
+Added: The Company’s internal control system is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles in the United States of America.
+Added: Due to its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.
+Added: Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation.
+Added: Management conducted an assessment of our internal control over financial reporting based upon criteria established in Internal Control —
+Added: Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013).
+Added: Based on that assessment, management determined that our internal controls over financial reporting were effective as of December 31, 2022.
Changes in Internal Control over Financial Reporting
−Removed: Except with respect to the remediated material weakness described above, there have not been any changes in our internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, during the fiscal quarter ended December 31, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
+Added: There have not been any changes in our internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, during the fiscal quarter ended December 31, 2022 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
OTHER INFORMATION
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DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
−Removed: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2022 Annual Meeting of Stockholders.
+Added: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2023 Annual Meeting of Stockholders within 120 days of December 31, 2022.
EXECUTIVE COMPENSATION
−Removed: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2022 Annual Meeting of Stockholders.
+Added: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2023 Annual Meeting of Stockholders within 120 days of December 31, 2022.
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.
−Removed: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2022 Annual Meeting of Stockholders.
+Added: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2023 Annual Meeting of Stockholders within 120 days of December 31, 2022.
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
−Removed: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2022 Annual Meeting of Stockholders.
+Added: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2023 Annual Meeting of Stockholders within 120 days of December 31, 2022.
PRINCIPAL ACCOUNTING FEES AND SERVICES
−Removed: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2022 Annual Meeting of Stockholders.
+Added: The required information is incorporated by reference from our Proxy Statement to be filed with respect to our 2023 Annual Meeting of Stockholders within 120 days of December 31, 2022.
EXHIBITS, AND FINANCIAL STATEMENT SCHEDULES
−Removed: The following documents are filed as part of this Annual Report on Form 10-K:
Financial Statements
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Financial statement schedules have been omitted since they are either not required, not applicable, or the information is otherwise included.
−Removed: The exhibits listed in the accompanying index to exhibits are filed or incorporated by reference as part of this Annual Report on Form 10-K.
+Added: See Exhibit Index at the end of this Annual Report on Form 10-K, which is incorporated by reference.
Incorporated by Reference
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Description of Securities.
−Removed: Stockholders’ Agreement, dated as of January 25, 2022, by and among Sky Harbour Group Corporation, Tal Keinan, Due West Partners LLC, Center Sky Harbour LLC, BOC Yellowstone I LLC, and BOC Yellowstone II LLC.
+Added: March 28, 2022
+Added: Stockholders’
+Added: Agreement, dated as of January 25, 2022, by and among Sky Harbour Group Corporation, Tal Keinan, Due West Partners LLC, Center Sky Harbour LLC, BOC Yellowstone I LLC, and BOC Yellowstone II LLC.
January 31, 2022
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1 to the Registration Rights Agreement, dated as of February 28, 2022 by and among Sky Harbour LLC, the Existing Sky Equityholders, BOC YAC, the Sponsor and the BOC PIPE investors.
+Added: March 28, 2022
Tax Receivable Agreement, dated as of January 25, 2022, by and among Sky Harbour Group Corporation, the Existing Sky Equityholders and the TRA Holder Representative.
4 unchanged sentences
January 31, 2022
−Removed: Sky Harbour Group Corporation 2022 Incentive Award Plan – Form of Restricted Stock Unit Agreement.
+Added: Sky Harbour Group Corporation 2022 Incentive Award Plan –
+Added: Form of Restricted Stock Unit Agreement.
January 31, 2022
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Purchase and Sale Agreement by and between AA Acquisitions, LLC and OPF Hangars Landlord LLC.
+Added: March 28, 2022
+Added: Payment Agreement dated March 7, 2022.
+Added: March 11, 2022
+Added: Employment Agreement with Tal Keinan.
+Added: March 28, 2022
+Added: First Amendment to Employment Agreement with Alexander Saltzman.
+Added: March 28, 2022
+Added: Amendment to Amended and Restated Employment Agreement with Francisco Gonzalez.
+Added: March 28, 2022
+Added: Second Amendment to Amended and Restated Employment Agreement with Francisco Gonzalez.
+Added: Form of Restricted Stock Unit Agreement (Executives)
+Added: Common Stock Purchase Agreement, dated as of August 18, 2022, by and between Sky Harbour Group Corporation and B.
+Added: Riley Principal Capital II, LLC.
+Added: August 19, 2022
+Added: Registration Rights Agreement, dated as of August 18, 2022, by and between Sky Harbour Group Corporation and B.
+Added: Riley Principal Capital II, LLC.
+Added: August 19, 2022
Letter from KPMG LLP to the SEC, dated January 31, 2022.
1 unchanged sentence
List of Subsidiaries.
+Added: Consent of EisnerAmper LLP
Certification of the Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a).
Certification of the Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a).
−Removed: Certification of the Chief Executive Officer required by Rule 13a-14(b) or Rule 15d-14(b) and 18 U.S.C.
+Added: Certification of the Chief Executive Officer required by Rule 13a-14(b) or Rule 15d-14(b) and 18  
Certification of the Chief Financial Officer required by Rule 13a-14(b) or Rule 15d-14(b) and 18 U.S.C.
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Filed herewith.
−Removed: The certifications attached as Exhibits 32.1, 32.2, and 32.3 that accompany this Report, are not deemed filed with the SEC and are not to be incorporated by reference into any filing of Yellowstone Acquisition Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Report irrespective of any general incorporation language contained in such filing.
+Added: The certifications attached as Exhibits 32.1 and 32.2 that accompany this Report, are not deemed filed with the SEC and are not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Report irrespective of any general incorporation language contained in such filing, except to the extent that the Company specifically incorporated it by reference.
Certain schedules and exhibits to this Exhibit have been omitted pursuant to Item 601(a)(5) or Item 601(b)(10)(iv), as applicable, of Regulation S-K.
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/s/ Tal Keinan
−Removed: Chief Executive (Principal Executive Officer)
+Added: Chief Executive Officer (Principal Executive Officer)
March 24, 2023
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Schmitt 
−Removed: Chief Accounting Officer
−Removed: (Principal Accounting Officer)
+Added: Chief Accounting Officer (Principal Accounting Officer)
March 24, 2023
+Added: POWER OF ATTORNEY
+Added: KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Tal Keinan, Francisco Gonzalez, and Michael W.
+Added: Schmitt and each of them, as his true and lawful attorney-in-fact and agent with full power of substitution, for him in any and all capacities, to sign any and all amendments to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent the full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully for all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his substitute, may lawfully do or cause to be done by virtue thereof.
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated:
26 unchanged sentences
March 24, 2023
+Added:    
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.