You are cordially invited to attend the Annual Meeting of Stockholders (the “Annual Meeting” or the “2022 Annual Meeting”) of Sky Harbour Group corporation, a Delaware corporation (the “Company”, “we,” “us,” or “our”) to be held on Tuesday, June 14, 2022, at 10 a.m. Eastern Time. The Annual Meeting will be held at our corporate offices located at Conference Room 1, Terminal M, 136 Tower Road, Westchester County Airport, White Plains, New York 10604.

We were a special purpose acquisition company called Yellowstone Acquisition Corp (“YAC”) prior to the closing of our business combination (the “Business Combination”) on January 25, 2022. The Business Combination represents the transactions contemplated by the Equity Purchase Agreement, dated as of August 1, 2021 (the “Equity Purchase Agreement”), between YAC and Sky Harbour LLC, a Delaware limited liability company (“Sky”), as a result of which Sky became a subsidiary of the Company. For further information on our business, please refer to our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 (the “2021 Annual Report”) filed with the Securities and Exchange Commission (the “SEC”) and provided to our stockholders together with this proxy statement.

We have elected to take advantage of Securities and Exchange Commission rules that allow companies to furnish proxy materials to their stockholders by providing notice of and access to these documents on the Internet instead of mailing printed copies. Those rules allow a company to provide its stockholders with the information they need, while lowering the costs of delivery and reducing the environmental impact of the Annual Meeting. Most of our stockholders will not receive printed copies of our proxy materials unless requested, but instead will receive a Notice of Internet Availability of Proxy Materials, or Notice, with instructions on how they may access and review our proxy materials and our 2021 Annual Report on the Internet and how they may cast their vote via the Internet. If you would like to receive a printed or e-mail copy of our proxy materials, please follow the instructions for requesting the materials in the Notice that is being sent to you.

Details regarding admission to the Annual Meeting and the business to be conducted are described in the accompanying proxy materials. We encourage you to read this information carefully.

Your vote is important. Whether or not you plan to attend the Annual Meeting, we hope you will vote as soon as possible. You may vote over the Internet, by telephone or by mailing a proxy card. Voting over the Internet, by telephone or by written proxy will ensure your representation at the Annual Meeting regardless of whether or not you attend in person. We urge you to read the accompanying materials regarding the matters to be voted on at the meeting and to submit your voting instructions using one of these voting options.

Thank you for your ongoing support of Sky Harbour Group Corporation.

The Board recommends that you vote:

Only stockholders of record at the close of business on April 18, 2022 will be entitled to vote at the Annual Meeting. On this record date, there were 14,937,581 shares of Company’s Class A common stock (“Class A Common Stock”) and 42,192,250 shares of the Company’s Class B common stock (“Class B Common Stock”) outstanding. The holders of our Class A Common Stock have the right to one vote for each share of Class A Common Stock they held as of the record date and the holders of our Class B Common Stock have the right to one vote for each share of Class B Common Stock they held as of the record date. The holders of our Class A Common Stock and Class B Common Stock are voting as a single class on all matters presented at the Annual Meeting.

Stockholders of Record. If shares of our common stock are registered directly in your name with our transfer agent, Continental Stock Transfer & Trust Company, you are considered the stockholder of record with respect to those shares, and the proxy materials were provided to you directly by us. As the stockholder of record, you have the right to grant your voting proxy directly to the individuals listed on the proxy card or to vote live at the Annual Meeting. Throughout this proxy statement, we refer to these registered stockholders as “stockholders of record.”

Street Name Stockholders. If shares of our common stock are held on your behalf in a brokerage account or by a bank or other nominee, you are considered to be the beneficial owner of shares that are held in “street name,” and the proxy materials were forwarded to you by your broker, bank or other nominee, who is considered the stockholder of record with respect to those shares. As the beneficial owner, you have the right to direct your broker, bank or other nominee as to how to vote your shares. Beneficial owners are also invited to attend the Annual Meeting.

Stockholders of record may vote over the Internet, by telephone or by mail as described below. Stockholders also may attend the Annual Meeting and vote in person. The method you use to vote will not limit your right to vote at the Annual Meeting if you decide to attend the Annual Meeting in person. Whether or not you plan to attend the Annual Meeting in person, we encourage you to vote your shares before the Annual Meeting over the Internet, by phone or by mail.

As a street name stockholder, you have the right to direct your broker, bank or other nominee regarding how to vote the shares in your account by following the instructions provided by your broker, bank or other nominee. You are also invited to attend the Annual Meeting. The proxy materials you receive from your broker, bank or other nominee will include your unique control number.

If you return a signed and dated proxy card without marking any voting selections, your shares will be voted in accordance with the recommendations of our Board stated above, namely: (i) “For” the election of all seven of our existing directors to serve until the 2023 annual meeting of stockholders; and (ii) “For” the ratification of the appointment of EisnerAmper LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2022. However, if you are a street name stockholder, you must provide voting instructions to your broker, bank or other nominee in accordance with their instructions in order for your shares to be properly voted. If any other matter is properly presented at the meeting, your proxy (one of the individuals named on your proxy card) will vote your shares using his best judgment.

As of the date of this proxy statement, we do not know of any matters to be raised at the Annual Meeting other than those referred to in this proxy statement. If other matters are properly presented at the Annual Meeting for consideration and you are a stockholder of record and have submitted a proxy card, the persons named in your proxy card will have the discretion to vote on those matters for you.

If you receive more than one set of proxy materials, your shares may be registered in more than one name or in different accounts. Please follow the voting instructions on the proxy cards in the proxy materials to ensure that all of your shares are voted.

Yes. You can revoke your proxy at any time before the final vote at the meeting. A stockholder of record may revoke a proxy in any one of three ways:

If you are a street name stockholder, you must contact your bank, broker or other nominee in order to find out how to change your vote.

Proxies may be solicited on behalf of our Board by our directors and employees. In addition to these mailed proxy materials, our directors and employees may also solicit proxies in person, by telephone, or by other means of communication. Directors and employees will not be paid any additional compensation for soliciting proxies.

We will pay for the entire cost of soliciting proxies. We may reimburse brokerage firms, banks and other agents for the cost of forwarding proxy materials to street name stockholders.

A quorum of stockholders is necessary to hold a valid meeting. A quorum will be present if the holders of a majority in voting power of shares of Class A Common Stock and Class B Common Stock outstanding as of April 18, 2022, the record date, are present or represented by proxy. Abstentions and broker non-votes will be counted towards the quorum requirement.

A broker non-vote occurs when shares held through a broker are not voted with respect to a proposal because (1) the broker has not received voting instructions from the stockholder who beneficially owns the shares and (2) the broker lacks the authority to vote the shares at its discretion. Proposal 1 regarding the election of directors is considered a non-routine matter, and a broker will lack the authority to vote uninstructed shares at their discretion on such proposals. Proposal 2 is considered a routine matter, and as a result brokers will be permitted to exercise their discretionary authority to vote for the ratification of the appointment of auditors. We encourage you to provide voting instructions to your broker, whether or not you plan to attend the Annual Meeting.

We will count a properly executed proxy card marked “Abstain” as present for purposes of determining whether a quorum is present, but the shares represented by that proxy card will not be voted at the Annual Meeting for the proposals so marked.

Preliminary voting results will be announced at the Annual Meeting. Final voting results will be available on a Current Report on Form 8-K filed with the SEC within four business days after the end of the Annual Meeting.

Tal Keinan. Tal Keinan has served as our Chairman of the Board and Chief Executive Officer since the closing of the Business Combination. Mr. Keinan assembled and has led the Sky team since its inception in October 2017. Mr. Keinan has served as Co-Founder and Executive Chairman of Clarity Capital KCPS Ltd., a global asset-management firm, since September 2005. He has served as the chairman of Koret Israel Economic Development Funds, Israel’s largest nonprofit lender to small and micro businesses, since 2010. Mr. Keinan is a veteran of the Israel Air Force, where he served for eighteen years, as an operational F-16 pilot and an air combat instructor, retiring with the rank of Lieutenant Colonel. He remains a licensed commercial pilot. Mr. Keinan holds a master’s degree in Business Administration from the Harvard Business School and is a graduate of The Israel Air Force Academy. Mr. Keinan designated himself to be a nominee to our Board pursuant to the Stockholders Agreement described below (see “Directors, Executive Officers and Corporate Governance – Stockholders’ Agreement”). We believe Mr. Keinan is qualified to serve on our Board because of his significant industry experience and deep knowledge of our Company.

Alex Saltzman. Alex Saltzman has served as our Chief Operating Officer since the closing of the Business Combination. Mr. Saltzman has served as the Chief Operating Officer of Sky since March 2021, where he sets and drives Sky’s strategy to seek to achieve robust corporate growth through actionable goals, plans, and budgets. Previously, as a partner at Alchemy Properties from July 2007 until February 2021, Mr. Saltzman directed the development of commercial and residential real estate and oversaw the entire arc of the business from acquisitions and financing through design and construction, into marketing and sales. Mr. Saltzman holds an MS in Real Estate Finance from New York University and a BA from the University of Pennsylvania. He is a former professor at the Schack Institute of Real Estate at New York University and has lectured at The Wharton School at The University of Pennsylvania.

Francisco Gonzalez. Francisco Gonzalez has served as our Chief Financial Officer since the closing of the Business Combination. Mr. Gonzalez began as the Chief Financial Officer of Sky on July 1, 2021. Mr. Gonzalez oversees all financial, capital markets, treasury, tax and accounting functions. During his previous positions from 1989 to 1991 and 1993 until 2010 at Goldman Sachs & Co. LLC, at RBC Capital Markets from 2010 until 2016, and at Fortress Investment Group from 2017 until 2018, Mr. Gonzalez led or was involved in numerous municipal bond financings, interest rate swaps and public private partnerships for infrastructure and municipal clients, with an emphasis in transportation related projects. He served as a managing director to LSN Partners/LSN Global Projects (“LSN”), a boutique infrastructure advisory firm, since June 2018. Mr. Gonzalez, who resigned from LSN upon becoming Sky’s Chief Financial Officer, has an ongoing consulting relationship with LSN as a Senior Advisor and continues to receive payments for such consulting services. Mr. Gonzalez does not receive any payments from LSN with respect to any continuing services rendered by LSN to Sky. Mr. Gonzalez holds a BA in Economics from Harvard College and an MBA from the Harvard Business School.

Michael W. Schmitt. Michael Schmitt has served as our Chief Accounting Officer since the closing of the Business Combination. Mr. Schmitt has over fourteen years of accounting and audit experience, most recently at PricewaterhouseCoopers LLP (“PwC”), where he held roles of increasing responsibility within the firm’s audit practice since 2012. While at PwC, Mr. Schmitt most recently served as an Assurance Director from July 2021 until January 2022 and an Assurance Senior Manager from July 2019 until June 2021. During Mr. Schmitt’s time at PwC, he served clients primarily in the transportation, travel, and logistics industries, inclusive of airlines, aircraft leasing and finance companies, as well and other multibillion-dollar SEC registrants in the consumer and industrial sectors. Mr. Schmitt holds a Bachelor of Science in Accountancy from Bryant University and is a licensed Certified Public Accountant and a member of the American Institute of Certified Public Accountants.

Gerald Adler. Gerald Adler has served as our Interim General Counsel and Corporate Secretary since the closing of the Business Combination. Mr. Adler has over thirty-five years of experience practicing corporate law. Before joining the Company, Mr. Adler operated a solo practice in 2020, where he advised businesses, start-ups, and venture capital and private equity firms on general corporate and commercial law matters including mergers, acquisitions, financings, capital raises, restructuring, employment matters and commercial licenses and agreements. He previously served as Chief Operating Officer and General Counsel of Paine Schwartz Partners, LLC, a private equity firm specializing in sustainable food chain investing, from 2012 until 2019, and served as a Partner in the Corporate and Securities groups of Friedman Kaplan Seiler & Adelman, LLP from 2008 until 2011, Dechert, LLP from 2005 until 2007 and Swidler Berlin Shereff Friedman from 1989 until 2004. Mr. Adler holds a Bachelor of Arts in Economics from Yeshiva University and a J.D. from the Columbia University School of Law. He is admitted to practice law in New York and is a member of the New York City Bar Association.

Walter Jackson. Walter Jackson has served as a member of our Board since the closing of the Business Combination. From 2016 to 2022, Mr. Jackson was a Portfolio Manager at Onex Credit. Previously, Mr. Jackson spent 18 years in various lending and investing capacities at Goldman Sachs. From 1997 to 2007, in Goldman Sachs Investment Banking Division, he was responsible for origination and executing bank loans and high yield financings for leveraged buyouts and corporate M&A transactions for US and international companies. From 2008 to 2015, he was responsible for various activities in Goldman Sachs Merchant Banking Division, including as Senior Credit Officer and Chief Operating Officer of the Private Debt Group where he was a member of the leadership team responsible for credit investing, capital markets, fund financing and other fund management responsibilities. Prior to joining Goldman Sachs, Mr. Jackson spent 10 years at The Bank of Nova Scotia and Credit Suisse First Boston in various leveraged lending capacities. He started his career at Ernst & Whinney in 1985 where he was involved in financial consulting for large and middle market companies. Mr. Jackson earned an MBA from Georgia State University and a B.S. from Bryan College. Mr. Jackson was designated to be a nominee to our Board by Mr. Keinan pursuant to the Stockholders Agreement described below (see “Directors, Executive Officers and Corporate Governance – Stockholders’ Agreement”). We believe Mr. Jackson is qualified to serve on our Board because of his significant financial expertise.

Alethia Nancoo. Alethia Nancoo has served as a member of our Board since the closing of the Business Combination. Ms. Nancoo has served as a partner in the Public & Infrastructure Finance Practice Group of Squire Patton Boggs (US) LLP since November 2013 and is a member of the firm's Global Board. Ms. Nancoo’s practice focuses on public, private and project debt finance, with particular emphasis on capital markets, infrastructure construction, airport, toll road and surface transportation, mixed-use multifamily housing, and water and sewer utility sectors. Ms. Nancoo previously served on the board of directors of the District of Columbia Water and Sewer Authority, where she was a member of the Finance and Governance Committees, and as a member of the Executive Committee of the District of Columbia Chamber of Commerce. Ms. Nancoo was recognized as Diversity, Equity and Inclusion Champion in Corporate Counsel Magazine’s 2021 Women, Influence & Power in Law and in the Washington Business Journal’s 2020 Minority Business Leader Awards. She is also a Fellow of the American College of Bond Counsel. Ms. Nancoo holds a B.A. in Psychology from the University of Maryland, a Masters of Education from the University of Maryland and a J.D. from the University of Wisconsin Law School. Ms. Nancoo was designated to be a nominee to our Board by Mr. Keinan pursuant to the Stockholders Agreement described below (see “Directors, Executive Officers and Corporate Governance – Stockholders’ Agreement”). We believe Ms. Nancoo is qualified to serve on our Board because of her significant experience in public and private debt finance.

Alex B. Rozek. Alex B. Rozek has served as a member of the YAC Board from the time of YAC’s initial public offering in August 2020 until the closing of the Business Combination. Mr. Rozek remained as a director of the

Company following the Business Combination. Mr. Rozek has been Co-Chairperson of the Board, Co-Chief Executive Officer and President of Boston Omaha Corporation since February 2015, when he became a member of the Board. He also serves as the Managing Member of Boulderado Partners, LLC, a private investment partnership founded in July 2007. From 2004 to 2007, Mr. Rozek served as an analyst for Water Street Capital and Friedman Billings Ramsey Group. Prior to 2004, he worked for Hunton & Williams and FedEx. Since August 2020, Mr. Rozek has served as Co-Chairperson of the Board of Directors and Co-Chief Executive Officer of Yellowstone Acquisition Company, a special purpose acquisition company which trades on the NASDAQ Capital Market and in which one of our subsidiaries serves as sponsor. Mr. Rozek is also one of three appointees from the town of Woodstock to ECFiber, a fiber telecommunications cooperative in east-central Vermont. Mr. Rozek graduated with a B.S. in Biology and a Minor in Chemistry from the University of North Carolina at Chapel Hill. Mr. Rozek was designated to be a nominee to our Board by Boston Omaha Corporation pursuant to the Stockholders Agreement described below (see “Directors, Executive Officers and Corporate Governance – Stockholders’ Agreement”). We believe Mr. Rozek is qualified to serve on our Board because of his significant experience as an investor in private and public companies.

Lysa Leiponis. Lysa Leiponis has served as a member of our Board since the closing of the Business Combination. Since January 2021, Ms. Leiponis has served as an Independent Senior Advisor at Ferrovial Airports U.S., where she advises senior executive leadership of one of the world’s leading developers and operators of airport infrastructure and provides counsel on strategic direction and growth strategy for the U.S. market. Ms. Leiponis has served as Principal and President of LL Aviation Advisors, LLC since February 2020, where she provides critical strategic advisory services to airport leaders, investors, airlines, and other industry stakeholders. Ms. Leiponis has served as a board member on the Critical Infrastructure Strategic Advisory Board of Parsons Corporation since March 2020 and as a member of the board of trustees of the Vaugh College of Aeronautics & Technology since October 2015, where she has also served as Chair of the Audit Committee from 2019 to present, Chair of the Compensation Committee from 2018 to 2019, Co-chair of the Governance Reform Committee from 2018 to 2019 and member of the Member Plant & Infrastructure and Development Committees from 2015 to 2018. Ms. Leiponis served as the Deputy Airport CEO and General Manager and as Airport CEO and General Manager of LaGuardia Airport from November 2010 until July 2013 and July 2013 until September 2019, respectively. Ms. Leiponis holds a B.S. in Accounting from Rutgers University and an M.B.A. from Pace University. Ms. Leiponis was designated to be a nominee to our Board by Mr. Keinan pursuant to the Stockholders Agreement described below (see “Directors, Executive Officers and Corporate Governance – Stockholders’ Agreement”). We believe Ms. Leiponis is qualified to serve on our Board because of her significant industry experience.

Nick Wellmon. Nick Wellmon has served as a member of our Board since the closing of the Business Combination. Since January 2020, Mr. Wellmon has served as the Founder and Managing Partner of Due West Partners, a private investment firm/family office with a differentiated and collaborative approach to investing and legacy creation. Focusing on investments in Aerospace & Defense, Diversified Industrials and Consumer Ventures, Due West empowers its companies with the resources and expertise they need to succeed at the next level. Prior to launching Due West, Mr. Wellmon was Director of Finance at Exotic Metals, a recognized leader in the aerospace and defense industry from February 2016 to January 2020. While at Exotic, Mr. Wellmon controlled the financial and strategic initiatives across the company’s business channels, and in 2019 led the sale of Exotic to Parker Hannifin Corporation. Earlier in his career, Mr. Wellmon was the Corporate Development Manager for eCommerce-startup Julep Beauty from December 2013 to February 2016, where he executed the company’s Series C capital raise led by Andreessen Horowitz and Madrona Venture Group. Mr. Wellmon also has ample experience in the investment banking industry, where he advised middle market companies on mergers, acquisitions and capital raising activities. Mr. Wellmon graduated from Wake Forest University in 2011 with a B.S. in Finance. Mr. Wellmon was designated to be a nominee to our Board by Due West Partners LLC pursuant to the Stockholders Agreement described below (see “Directors, Executive Officers and Corporate Governance – Stockholders’ Agreement”). We believe Mr. Wellmon is qualified to serve on our Board because of his significant experience in strategically growing companies in our industry.

Robert S. Rivkin. Robert S. Rivkin has served as a member of our Board since the closing of the Business Combination. Since March 2019, Mr. Rivkin has been Senior Vice President and Chief Legal Officer for United Airlines, where he leads United’s Legal Department, including the corporate, securities, finance, commercial, litigation, government contracts, intellectual property, antitrust, environmental, employment and international groups. Prior to joining United, Mr. Rivkin served as deputy mayor of the City of Chicago from August 2017 to February 2019, of counsel of Riley Safer Holmes & Cancila LLP from July 2016 to August 2017 and deputy general counsel of Delta Air Lines from May 2013 to April 2016. Prior to joining Delta, Mr. Rivkin served as general counsel

of the U.S. Department of Transportation from May 2009 to April 2013, after being nominated by President Obama and unanimously confirmed by the U.S. Senate. Mr. Rivkin has served as a director of the National Park Foundation since August 2015, a member of the Board of Trustees at the Steppenwolf Theatre Company since September 2019 and a member of the Board of Trustees of the Chicago Architecture Center since March 2020. Mr. Rivkin holds an A.B. in Social Studies from Harvard College and a J.D. from Stanford Law School, where he was an associate editor of the Stanford Law Review, and clerked for Judge Joel M. Flaum of the U.S. Court of Appeals for the 7th Circuit. Mr. Rivkin was designated to be a nominee to our Board by Center Sky Harbour LLC pursuant to the Stockholders Agreement described below (see “Directors, Executive Officers and Corporate Governance – Stockholders’ Agreement”). We believe Mr. Rivkin is qualified to serve on our Board because of his significant public company experience and his knowledge of our industry.

We have structured our corporate governance in a manner we believe closely aligns our interests with those of our stockholders. Notable features of our corporate governance structure include the following:

Our directors will stay informed about our business by attending meetings of the Board and its committees and through supplemental reports and communications. Our independent directors will meet regularly in executive sessions without the presence of our corporate officers or non-independent directors.

Under the rules of the NYSE American, a director will only qualify as an “independent director” if such person is not an officer or employee of the company or its subsidiaries and such person does not have a relationship, which, in the opinion of the Board, would interfere with the director’s exercise of independent judgment in carrying out the responsibilities of a director. Prior to the consummation of the business combination, the Board undertook a review of the independence of each director and considered whether each director has a material relationship with YAC or BOC Yellowstone LLC, a Delaware limited liability company (the “Sponsor”), that could compromise his or her ability to exercise independent judgment in carrying out his or her responsibilities. The Board determined, as a result of this review, Walter Jackson Alethia Nancoo, Lysa Leiponis, Nick Wellmon and Robert S. Rivkin are considered “independent directors” as defined under the listing requirements and rules of the NYSE American, and that Walter Jackson, Alethia Nancoo, Lysa Leiponis, and Robert S. Rivkin are considered independent for purposes of audit committee service under Rule 10A-3 under the Exchange Act. In making these determinations, the Board considered the current and prior relationships that each non-employee director has with the Company and Sky Harbour LLC (“Sky”) and all other facts and circumstances the Board deemed relevant in determining independence, including the beneficial ownership of the post-combination company’s common stock held by each non-employee director, and the transactions involving them described in the section entitled “Certain Relationships and Related Party Transactions.”

Our Corporate Governance Guidelines provide our Board with the flexibility to combine the position of Chief Executive Officer with the position of Chairman of the Board in accordance with its determination that utilizing one or the other structure would be in our best interests. Currently, Mr. Keinan serves as Chief Executive Officer and Chairman of the Board. Our Board has determined that combining the roles of Chief Executive Officer and Chairman of the Board is in the best interests of our Company and its stockholders at this time because it promotes unified leadership by Mr. Keinan and allows for a single, clear focus for management to execute the Company’s strategy and business plans.

Our Corporate Governance Guidelines provide that, if the Chairperson of the Board is not an independent director, the Board will annually designate a Lead Independent Director. Though annually designated, the Lead Independent Director is generally expected to serve in such capacity for more than one year. The Lead Independent Director’s responsibilities include presiding at executive sessions of the independent directors, serving as the focal point of communication to the Board regarding management plans and initiatives, ensuring that the role between Board oversight and management operations is respected, providing the medium for informal dialogue with and between independent directors, allowing for free and open communication within that group and performing other functions as requested by the Board from time to time. The Lead Independent Director may be redesignated at any time by a majority of the independent members of the Board.

Our Chairman of the Board is Tal Keinan. Under the NYSE American rules, Mr. Keinan is not an independent director. Thus, the Board has also appointed Lysa Leiponis as our Lead Independent Director. Our Board has concluded that our current leadership structure is appropriate at this time. However, our Board will continue to periodically review our leadership structure and may make such changes in the future as it deems appropriate.

One of the key functions of the Board is informed oversight of our risk management process. The Board administers this oversight function directly, with support from its three standing committees, the Audit Committee, the Nominating and Corporate Governance Committee and the Compensation Committee, each of which addresses risks specific to their respective areas of oversight. In particular, our Audit Committee has the responsibility to consider and discuss our major financial risk exposures and the steps our management has taken to monitor and control these exposures, including guidelines and policies to govern the process by which risk assessment and management is undertaken. The Audit Committee also monitors compliance with legal and regulatory requirements. Our Nominating and Corporate Governance Committee monitors the effectiveness of our corporate governance guidelines and code of business conduct and ethics, including whether they are successful in preventing illegal or improper liability-creating conduct. Our Compensation Committee will assess and monitor whether any of our compensation policies and programs has the potential to encourage excessive risk-taking.

We have adopted an anti-hedging policy, which is designed to prevent any of our directors, officers or employees from entering in a transaction in our securities that is designed to hedge the risks of ownership of our securities. The policy specifically prohibits the purchase or sale of puts, calls, options or other derivative securities based on our securities, as well as prohibits hedging or monetization transactions, such as forward sale contracts, by our directors, officers or employees.

Stockholders and any interested parties may communicate directly with the independent directors either by writing to the board, a board committee, or an individual director at the Company’s principal executive offices or by emailing info@skyharbour.group. Management receives all letters and emails sent and forwards proper communications to the board, a board committee, or an individual director, who facilitates an appropriate response. Management generally will not forward communications that are primarily solicitations for products or services, matters of a personal nature that are not relevant for stockholders, matters that are of a type that render them improper or irrelevant to the functioning of the board, or requests for general information about the Company.

The Board has developed and adopted a set of corporate governance principles to provide the framework within which the Board may conduct its oversight of the business and affairs of the Company. These guidelines reflect the Board’s commitment to monitoring the effectiveness of policy and decision making both at the Board and

management level, with a view to enhancing stockholder value over the long term. The Corporate Governance Guidelines set forth the practices the Board intends to follow with respect to, among other topics, the role of the Board and management, principal responsibilities and duties of the Board, Board structure and composition, Board procedures, Board committees and Board communication with Company stakeholders. A copy of our Corporate Governance Guidelines can be found on the investor relations page of our website at https://ir.skyharbour.group.

Prior to the Business Combination, the YAC Board had three standing committees: an audit committee, a compensation committee and a nominating committee. In connection with the consummation of the Business Combination and the contemporaneous disbanding of these committees, our Board formed and constituted our audit committee, compensation committee and nominating and corporate governance committee in January 2022. Our Board may establish other committees to facilitate the management of our business. Our Board and its committees will set schedules for meetings throughout the year and can also act by written consent from time to time, as appropriate. Our Board delegated various responsibilities and authority to its committees as generally described below. The committees regularly report on their activities and actions to the full Board. Each committee of our Board has a written charter approved by our Board. Members will serve on these committees until their resignation or until otherwise determined by our Board. The following table provides membership information for each of such Board committee as of the date of this proxy statement:

The standing committees of the Board consist of an Audit Committee, a Compensation Committee, and a Nominating and Corporate Governance Committee. The composition of each committee and the responsibilities of each of the committees, is described below. Members will serve on these committees until their resignation or until as otherwise determined by the Board.

The Audit Committee is composed of Ms. Leiponis, Mr. Jackson and Mr. Rivkin, with Mr. Jackson serving as chair of the committee. The Board determined that each of the foregoing meet the independence requirements of Rule 10A-3 under the Exchange Act and the applicable listing standards of the NYSE American. The Board determined that Mr. Jackson is an “audit committee financial expert” within the meaning of SEC regulations and applicable listing standards of the NYSE American. The Audit Committee’s responsibilities include:

The Compensation Committee is composed of Mr. Keinan, Ms. Leiponis, Ms. Nancoo, Mr. Jackson, Mr. Wellmon and Mr. Rozek, with Ms. Nancoo serving as chair of the committee. Under NYSE American listing standards, as a controlled company, the Company is required to have a compensation committee composed entirely of independent directors. While the Company intends to rely upon this exemption for controlled companies, the Board determined that each of Ms. Leiponis, Ms. Nancoo, Mr. Jackson and Mr. Wellmon is independent. The Compensation Committee’s responsibilities include:

The Compensation Committee may form and delegate its authority to subcommittees when appropriate.

During the fiscal year ended December 31 2021, Sky engaged Pearl Meyer & Partners, LLC (“PM”), a compensation consulting firm, to assess and make recommendations with respect to the amounts and types of compensation to provide our Chief Executive Officer and non-employee directors following the closing of the Business Combination. PM did not provide any other services to us during 2021 other than those for which it had been retained by Sky.

As part of the executive compensation process, our Compensation Committee reviewed compensation assessments provided by PM comparing our Chief Executive Officer’s compensation to that of a group of peer companies within our industry and met with PM to discuss compensation of our Chief Executive Officer, without his presence, and to receive input and advice. In making a recommendation to the Board regarding the compensation to be paid to our Chief Executive Officer, the Compensation Committee considered the recommendations of PM as well as other factors such as the impact of the COVID-19 pandemic on our operating results, the form and amount of compensation to be paid, our achievement of performance objectives and other relevant factors.

In making final decisions regarding the compensation to be paid to our Chief Executive Officer, the Board considered the same factors and gave considerable weight to the recommendations of the Compensation Committee. As part of the director compensation process, the Board considered the recommendations of PM and the Compensation Committee, as well as fees and other compensation paid to directors of a group of peer companies within our industry, the number of board and committee meetings that our directors are expected to attend, and other factors that may be relevant.

The Company’s Nominating and Corporate Governance Committee is composed of Mr. Keinan, Ms. Leiponis, Ms. Nancoo, Mr. Rivkin and Mr. Rozek, with Ms. Leiponis serving as chair of the committee. Under NYSE American listing standards, as a controlled company, the Company is required to have a nominating and corporate governance committee comprised entirely of independent directors. While the Company intends to rely upon this exemption for controlled companies, the Board determined that Ms. Leiponis, Ms. Nancoo and Mr. Rivkin are independent. The Nominating and Corporate Governance Committee’s responsibilities include:

Our Audit Committee, Compensation Committee, and Nominating and Governance Committee operate under written charters adopted by the Board. These charters are posted on the “Investor Relations” page of our website, https://ir.skyharbour.group/.

There are no family relationships among any of our directors or executive officers.

Our Bylaws limit the liability of our directors and officers to the fullest extent permitted by the Delaware General Corporation Law (the “DGCL”) and provides that we will provide them with customary indemnification and advancement and prepayment of expenses. We have entered into customary indemnification agreements with each of its executive officers and directors that provide them, in general, with customary indemnification in connection with their service to us or on our behalf.

We qualify as a “controlled company” within the meaning of the corporate governance standards of the NYSE American. Under these rules, a listed company of which more than 50% of the voting power is held by an individual, group or another company is a “controlled company” and may elect not to comply with certain corporate governance requirements, including the requirement that (i) a majority of our Board consist of independent directors, (ii) we have a compensation committee that is composed entirely of independent directors and (iii) we have a nominating and corporate governance committee that is composed entirely of independent directors.

We rely on certain of these exemptions. As a result, we do not have a compensation committee or a nominating and corporate governance committee consisting entirely of independent directors. We may also rely on the other exemptions so long as we qualify as a controlled company. To the extent we rely on any of these exemptions, holders of Class A Common Stock will not have the same protections afforded to stockholders of companies that are subject to all of the corporate governance requirements of the NYSE American.

We have adopted a code of conduct and ethics that applies to our directors, officers and employees in accordance with applicable federal securities laws, a copy of which is available on the investor relations page of our website at www.skyharbour.group. The Company will make a printed copy of the code of conduct and ethics available to any stockholder who so requests. Requests for a printed copy may be directed to: info@skyharbour.group.

If the Company amends or grants a waiver of one or more of the provisions of the Company’s code of ethics, it intends to satisfy the requirements under Item 5.05 of Item 8-K regarding the disclosure of amendments to or waivers from provisions of our that apply to our principal executive officer, principal financial officer and principal accounting officer by posting the required information on our investor relations page on our website at www.skyharbour.group. The information on this website is not part of this proxy.

During the year ended December 31, 2021, the YAC Board met 21 times. Only one of our incumbent Board members, Alex Rozek, served on the YAC board of directors prior to the closing of the Business Combination. Mr. Rozek attended all meetings of the Board or the committees of the Board that were held during the fiscal year ended December 31, 2021.

Prior to the Business Combination, the YAC Board had two committees: an audit committee and a compensation committee.. During the year ended December 31, 2021, YAC’s audit committee met 5 times, while YAC’s compensation committee did not meet..

While we do not have a formal policy regarding attendance by members of our Board at our annual meetings of stockholders, each director is encouraged to attend. We did not have an annual meeting of stockholders in 2021.

The Nominating and Corporate Governance Committee has the responsibility for reviewing and recommending to the Board candidates for director positions. The Nominating and Corporate Governance Committee will consider nominations made by stockholders. There are no differences in the manner in which the Nomination and Corporate Governance Committee evaluates nominees for director based on whether the nominee is recommended by a stockholder or whether the recommendation comes from another source. To have a candidate considered by the Nominating and Corporate Governance Committee, a stockholder must submit such stockholder’s recommendation in writing in accordance with the procedures described in the section of this Proxy Statement entitled “Other Matters—2021 Stockholder Proposals or Nominations” and must include the information specified in our Bylaws, including information concerning the nominee and information about the stockholder’s ownership of and agreements related to our stock.

The Nominating and Corporate Governance Committee, in evaluating Board candidates, considers issues such as character, integrity, judgment, diversity, age, independence, skills, education, expertise, business acumen, business experience, length of service, understanding of our business, and other commitments and the like, all in the context of an assessment of the needs of the Board at the time. The committee’s objective is to maintain a Board of individuals of the highest personal character, integrity, and ethical standards, and that reflects a range of professional backgrounds and skills relevant to our business. The Nominating and Corporate Governance Committee does not have a formal policy with respect to diversity; however, the committee considers diversity in identifying nominees for director, including personal characteristics such as race and gender, as well as diversity in the experience and skills that contribute to the Board’s performance of its responsibilities in the oversight of a global technology business.

The Nominating and Corporate Governance Committee believes that the minimum qualifications for serving as a director are that a nominee demonstrate knowledge of our industry, accomplishment in his or her field, an ability to make a meaningful contribution to the Board’s oversight of our business and affairs, independence under NYSE American rules, lack of conflicts of interest, and a record and reputation for integrity and ethical conduct in both his

or her professional and personal activities. In addition, the Nominating and Corporate Governance Committee examines a candidate’s specific experiences and skills, time availability in light of other commitments, interpersonal skills, and compatibility with the Board, and ability to complement the competency and skills of the other Board members.

The Nominating and Corporate Governance Committee annually reviews with the Board the requisite skills and characteristics of Board members, as well as the composition of the Board as a whole. This assessment includes a consideration of independence, diversity, age, skills, and experience and industry backgrounds in the context of the needs of the Board and the Company, as well as the ability of current and prospective directors to devote sufficient time to performing their duties in an effective manner. Directors are expected to exemplify the highest standards of personal and professional integrity, and to constructively challenge management through their active participation and questioning. In particular, the Nominating and Corporate Governance Committee seeks directors with established strong professional reputations and expertise in areas relevant to the strategy and operations of our business.

In performing its duties, the Nominating and Corporate Governance Committee may consult with internal or external legal counsel and expert advisers.

We and certain of our stockholders who own in the aggregate 3,399,724 shares of Class A Common Stock and 41,222,212 shares of Class B Common Stock as of the record date (the “Stockholder Parties”) entered into the Stockholders’ Agreement, pursuant to which, among other things, the Stockholder Parties agreed to vote all of our securities of that may be voted in the election of our directors held by such Stockholder Parties in accordance with the provisions of the Stockholders’ Agreement. Pursuant to the Stockholders Agreement, Tal Keinan and his permitted designees (the “Founder Holders”) have the right to designate four of our seven directors (the “Founder Designees”) at any time. Each of Due West Partners LLC (“Due West”) and its permitted designees (the “Due West Holders”), Center Sky Harbour LLC (“Center Sky”) and its permitted designees (the “Center Sky Holders”) and the Sponsor and its permitted designees (the “Sponsor Holders”) have the right to designate a director.

In the event that the Founder Holders cease collectively, as of any date after the Closing Date, to own our voting stock bearing greater than: (1) thirty-three percent (33%) of outstanding voting power of the Company held by them at the closing of the Business Combination (the “Closing”), the Founder Holders shall only be entitled to nominate three (3) members of our Board as of the date Founder Holders cease to hold the aforementioned requisite securities of the Company; (2) twenty-five percent (25%) of the outstanding voting power of the Company held by them at the Closing, the Founder Holders shall only be entitled to nominate two (2) members of the Company as of the date Founder Holders cease to hold the aforementioned requisite securities of the Company; (3) fifteen percent (15%) of the outstanding voting power of the Company held by them at the Closing, the Founder Holders shall only be entitled to nominate one (1) member of the Board as of the date Founder Holders cease to hold the aforementioned requisite securities of the Company; and (4) five percent (5%) of the outstanding voting power of the Company held by them at the Closing, the Founder Holders shall no longer be entitled to nominate any members of the Board as of the date the Founder Holders cease to hold the aforementioned requisite securities of the Company. The Stockholder Parties agree that, in the event the size of the Board is increased or decreased, the number of Founder Designees that the Founder Holders are entitled to appoint to the Board shall increase or decrease proportionately to the size of the Board. Notwithstanding the foregoing, for so long as the Founder Holders are entitled to nominate at least four (4) members of the Board, at least one (1) Founder Designee must (x) qualify as an “independent director” under NYSE American Rules and (y) qualify as an “audit committee financial expert” within the meaning of Regulation S-K of the Securities Act. The Founder Holders’ rights to designate directors shall be terminated as set forth herein

Until the Due West Fall-Away Date, the Due West Holders, by a majority of shares held by them, shall have the right to nominate, and the Board and the Stockholder Parties will appoint and vote for, the Due West Designee, who is initially designated as Nick Wellmon and shall thereafter be designated by the Due West Holders. The Due West Designee must at all times qualify as an “independent director” under NYSE American Rules. The “Due West Fall-Away Date” shall be the first date following the Closing Date on which either of the following events occurs: (A) the Due West Holders cease to own voting stock of the Company bearing greater than thirty-three percent (33%) of the outstanding voting power of the Company held by them at the Closing; or (B) Due West’s designation rights have been terminated as set forth herein.

Until the Center Sky Fall-Away Date, the Center Sky Holders, by a majority of shares held by them, shall have the right to nominate, and the Board and the Stockholder Parties will appoint and vote for, the Center Sky Designee,

who is initially designated as Robert S. Rivkin and shall thereafter be designated by the Center Sky Holders. The Center Sky Designee must at all times qualify as an “independent director” under NYSE American Rules. The “Center Sky Fall-Away Date” shall be the first date following the Closing Date on which either of the following events occurs: (A) the Center Sky Holders cease to own voting stock of the Company bearing greater than thirty-three percent (33%) of the outstanding voting power of the Company held by them at the Closing; or (B) Center Sky’s designation rights have been terminated as set forth herein.

Until the Sponsor Fall-Away Date, the Sponsor Holders, by a majority of shares held by them, shall have the right to nominate, and the Board and the Stockholder Parties will appoint and vote for, the Sponsor’s Designee, who is initially designated as Alex B. Rozek and shall thereafter be designated by the Sponsor Holders. The Sponsor’s Designee must at all times qualify as an “independent director” under NYSE American Rules. The “Sponsor Fall-Away Date” shall be the first date following the Closing Date on which either of the following events occurs: (A) the Sponsor Holders jointly cease to own voting stock of the Company bearing greater than thirty-three percent (33%) of the outstanding voting power of the Company held by them at the Closing; or (B) the Sponsor’s designation rights have been terminated as set forth herein.

The right of any of the Stockholder Parties to designate nominees for appointment to the Board as set forth above shall terminate if at any time (A) such Stockholder Designating Party or any of its affiliates becomes a Competitor of the Company, (B) such Stockholder Designating Party or any of its affiliates commences any legal proceeding against the Company, its subsidiaries or any other member of the Board; or (C) such Stockholder Designating Party or any of its affiliates has the right (whether exercised or not) to designate or appoint a member of or observer to the board of directors (or similar governing body) of any competitor. For purposes of the Stockholders’ Agreement, a “Competitor” shall mean a Person engaged, directly or indirectly (including through any partnership, limited liability company, corporation, joint venture or similar arrangement (whether now existing or formed hereafter)), in the business of developing and leasing airport real estate infrastructure in North America but shall not include any financial investment firm or collective investment vehicle that, together with its Affiliates, holds less than ten percent (10%) of the outstanding equity of any Competitor and does not, nor do any of its Affiliates, have a right to designate any members of the board of directors of any Competitor.

Pursuant to the Stockholders’ Agreement, each nominee to the Board must at all times, satisfy all requirements for service as a director under applicable law, NYSE American Rules, and other qualifications as the Board may adopt. Additionally, any such members of or nominees to the Board cannot have been disqualified as a “Bad Actor” under Section 506 of Regulation D of the Securities Act, involved in any event enumerated under Item 2(d) or € of Schedule 14D under the Exchange Act or Item 401(f) (other than Item 401(f)(1)), of Regulation S-K of the Securities Act, or be subject to any governmental order prohibiting service as a director of a public company. Further, any such nominee or director must agree to be bound to a confidentiality agreement in a form acceptable to the Company and must recuse themselves from deliberations and discussions that, in the reasonable determination of the Board, present an actual or potential conflict of interest with the Company.

In addition to any vote or consent required by the Board or stockholders of the Company, the Company may not change the size of the Board, establish any committee of the Board, change the composition or powers of any committees of the Board (subject to certain exceptions), engage any professional advisers or materially change the nature or scope of the Company’s business or enter into or abandon a line of business, in each case without the consent of a majority of the shares held by the Stockholder Parties. This consent right terminates automatically on the first date on which the combined voting power of the Stockholder Parties no longer exceeds 50% of the total voting power of the Company then outstanding.

For so long as the Sponsor Holders continue to own voting stock of the Company bearing at least twenty percent (20%) of the outstanding voting power of the Company held by them at the Closing, the Sponsor shall be entitled to designate one individual to receive notice of and to attend Board meetings on a non-voting basis (a “Board Observer”). Board Observers will receive copies of any materials distributed to members of the Board in connection with any meeting or consent solicitation. The Board may exclude such Board Observer from any portion of the Board meeting or Board materials where, in the exercise of its reasonable discretion, it believes such exclusion is necessary to preserve attorney-client privilege.

Subject to certain exceptions, each Stockholder Party’s obligation to vote its shares of the Company in accordance with the Stockholder Agreement is terminated on the first date on which such Stockholder Party no longer has the right to designate a director to the Board. Certain other obligations of each Stockholder Party terminate automatically when such Stockholder Party ceases to own shares of the Company.

Currently, our officers are appointed by the Board and serve at the discretion of the Board, rather than for specific terms of office. Our Board is authorized to appoint persons to the offices set forth in our Existing Bylaws as it deems appropriate. Our Existing Bylaws provide that our officers may consist of a Chairman of the Board, Chief Executive Officer, Chief Financial Officer, President, Vice Presidents, Secretary, Treasurer, Assistant Secretaries and such other offices as may be determined by the Board.

Because of their ownership block, our directors and executive officers as a group may be able to effectively influence the outcome of all matters requiring approval by our stockholders, including amendments to our amended and restated certificate of incorporation and approval of significant corporate transactions.

As an emerging growth company, the Company will be exempt from certain requirements related to executive compensation, including the requirements to hold a nonbinding advisory vote on executive compensation and to provide information relating to the ratio of total compensation of the Company’s chief executive officer to the median of the annual total compensation of all of the Company’s employees, each as required by the Investor Protection and Securities Reform Act of 2010, which is part of the Dodd-Frank Wall Street Reform and Consumer Protection Act.

As described above, on December 31, 2021, the Company was formerly known as YAC. At that time, the entity had no equity compensation plans.

additional documents and take such additional actions as Boston Omaha and Sky reasonably may deem to be practical and necessary to consummate the subscription. In addition, pursuant to the BOC PIPE Subscription Agreement, Boston Omaha agreed to waive any claims Boston Omaha may have at the Closing or in the future, in or to any monies held in the Trust Account, subject to certain exceptions as specified therein. The sale of BOC PIPE shares was consummated concurrently with the Closing of the Business Combination.

In connection with the BOC PIPE Subscription Agreement, Sky entered into a letter agreement with Yellowstone and Boston Omaha on December 22, 2021, in which, among other things, Sky agreed to waive the Minimum Buyer Financing Condition which required Yellowstone to deliver at least $150 million in value in accordance with Section 6.3(e) of the Equity Purchase Agreement (subject to funding of the $45,000,000 under the BOC PIPE Subscription Agreement), consented to Yellowstone transferring its listing to the New York Stock Exchange and, given the enhanced scrutiny of Special Purpose Acquisition Companies, agreed to the engagement of a nationally recognized accounting firm to provide consulting services to Sky with respect to its internal control function.

Upon completion of the Business Combination, Sky Harbour entered into the Stockholders’ Agreement, the A&R Operating Agreement of Sky and the Tax Receivables Agreement with the Existing Sky Equity Holders, including Due West. Mr. Wellmon, who has served on the Board since the Closing of the Business Combination, is the founder and Managing Partner of Due West.

In March 2021, Due West received 15,000 Series A Preferred Units in exchange for an investment in Sky of $15 million. The Series A Preferred Units converted into Sky Common Units and an equivalent number of shares of Class B Common Stock upon completion of the Business Combination.

Beginning in November 2020, the Company received funding and entered into a note payable with a related party, SH Investment Fund I LLC. The note payable bore interest at 8% per annum and had a maturity date of November 24, 2021. Amounts payable under the note were drawn by requesting “advances” from the lender, up to $1,000,000, and could be used by the Company only for certain types of expenditures that were approved in advance by the lender. On March 12, 2021, the Company issued 1,250 Series A Preferred Units in full satisfaction of the note payable by the Company to SH Investment Fund I LLC. Walter Jackson, who has served as a member of the Board since the closing of the Business Combination, invested $425,000 in the note payable, and received a commensurate amount of Series A Preferred Units upon conversion.

The registration statement for the initial public offering of YAC was declared effective on October 21, 2020. On October 26, 2020, we consummated the initial public offering of YAC of 12,500,000 Units, at $10.00 per Unit, generating gross proceeds of $125.0 million, and incurring offering costs of approximately $7.96 million (including $7.5 million in underwriters' fees). The underwriters were granted a 45-day option from October 21, 2020 to purchase up to 1,875,000 additional Units to cover over-allotments, if any, at $10.00 per Unit. On December 1, 2020, the underwriters' over-allotment option was exercised resulting in the purchase of an additional 1,098,898 Units.

In August 2020, the Sponsor acquired 5,750,000 founder shares for an aggregate purchase price of $25,000. Prior to the initial investment in the company of $25,000 by the Sponsor, we had no assets, tangible or intangible. The number of founder shares issued was determined based on the expectation that such founder shares would represent 20% of the outstanding shares upon completion of the initial public offering of YAC. The per share purchase price of the founder shares was determined by dividing the amount of cash contributed to us by an aggregate number of founder shares issued. Subsequently, we decreased the size of the offering and decreased the number of founder shares proportionally in the offering as to maintain the ownership of our initial stockholders at 20% of the issued and outstanding shares of our common stock upon the consummation of the offering. In connection with the underwriter’s exercise of the over-allotment option on December 1, 2020, we decreased the number of founder shares to 3,399,724 shares, resulting in a purchase price of $0.00735 per share of Class B Common Stock. Also in connection with the exercise of the underwriters' overallotment option, the Sponsor purchased private placement warrants at a price of $1.00 per whole warrant to purchase an additional 219,779 shares of Class A Common Stock at a price of $11.50 per share.

On November 16, 2020, the Sponsor transferred to BOC Yellowstone II LLC 206,250 shares of Class B Common Stock for no consideration. All other shares of Class B Common Stock were owned by the Sponsor. The Sponsor sold to an affiliate of the lead investor, Glazer Capital, LLC, in the initial public offering of YAC a membership interest in BOC Yellowstone II LLC for a purchase price of $309,375. The Sponsor is the sole managing member of BOC Yellowstone II LLC.

Simultaneously with the closing of the initial public offering of YAC, YAC consummated the private placement of 7,500,000 private placement warrants to the Sponsor, each exercisable to purchase one share of Class A common stock at $11.50 per share, at a price of $1.00 per private placement warrant, generating gross proceeds to YAC of $7.5 million. In connection with the partial exercise of the underwriter's over-allotment option, the Sponsor purchased an additional 219,779 private placement warrants at a price of $1.00 per private placement warrant, generating additional gross proceeds of $219,779. The private placement warrants (including the Class A Common Stock issuable upon exercise thereof) may not, subject to certain limited exceptions, be transferred, assigned or sold by the holder.

The shares of Class B Common Stock were subject to certain transfer restrictions, as described in more detail below, (i) the Sponsor, officers and directors have entered into a letter agreement with YAC, pursuant to which they agreed (A) to waive their redemption rights with respect to any Class B Common Stock and any public shares held by them in connection with the completion of the Business Combination and (B) to waive their rights to liquidating distributions from the trust account with respect to any Class B Common Stock held by them if the Company failed to complete the Business Combination within the prescribed time period, although they will be entitled to liquidating distributions from the trust account with respect to any public shares they hold if the Company failed to complete the Business Combination within such time period, (ii) the Class B Common Stock are shares of the Class B Common Stock that automatically converted into shares of the Class A Common Stock at the time of the Business Combination, on a one-for-one basis and (iii) are subject to registration rights. YAC’s officers, directors and the Sponsor derived benefit from agreeing to such provisions, but did not receive separate consideration for such waivers.

No compensation of any kind, including finder’s and consulting fees, has been paid to the Sponsor, officers and directors, or any of their respective affiliates, for services rendered prior to or in connection with the completion of the Business Combination. However, these individuals were reimbursed for any out-of-pocket expenses incurred in connection with activities on YAC’s behalf, including with respect to YAC’s formation and initial public offering and to identifying potential target businesses and performing due diligence on the Business Combinations.

On August 31, 2020, the Sponsor agreed to loan YAC up to $300,000 under a promissory note to be used for a portion of the expenses of its initial public offering. Prior to the closing of its initial public offering, YAC had borrowed $150,000 under the promissory note. The loan was repaid on October 26, 2020 out of the offering proceeds not held in the trust account.

BOC YAC has previously entered into a Series B Preferred Unit Purchase Agreement under which it has acquired $55,000,000 worth of Series B Preferred units of Sky. These units automatically converted into 5,500,000 shares of our Class A Common Stock upon the closing of the Business Combination. In addition, under the terms of the Stockholders’ Agreement, the Sponsor Holders have certain rights to designate a director for the Board.

We have adopted a written policy relating to the approval of related person transactions. A “related person transaction” is a transaction or arrangement or series of transactions or arrangements in which we participate (whether or not we are a party) and a related person has a direct or indirect material interest in such transaction. Our Audit Committee will review and approve or ratify all relationships and related person transactions between us and (i) our directors, director nominees or executive officers, (ii) any record or beneficial owner of 5% or more of our common stock or (iii) any immediate family member of any person specified in (i) and (ii). The Audit Committee will review all related person transactions and, where the Audit Committee determines that such transactions are in our best interests, approve such transactions in advance of such transaction being given effect.

As set forth in the related person transaction policy, in the course of its review and approval or ratification of a related party transaction, the Audit Committee will, in its judgment, consider in light of the relevant facts and circumstances whether the transaction is, or is not inconsistent with, our best interests, including consideration of various factors enumerated in the policy.

Any member of the Audit Committee who is a related person with respect to a transaction under review will not be permitted to participate in the discussions or approval or ratification of the transaction. Our policy also includes certain exceptions for transactions that need not be reported and provides the Audit Committee with the discretion to pre-approve certain transactions.

Our Audit Committee will review on a quarterly basis all payments that were made to our officers or directors, or our or their affiliates.

At the closing of the Business Combination, the board of directors of the Company adopted NYSE American listing standards to assess director independence. The board of directors has determined that each of Walter Jackson, Alethia Nancoo, Lysa Leiponis, Nick Wellmon and Robert S. Rivkin qualifies as “independent” under the listing requirements of NYSE American. Mr. Jackson is also an “audit committee financial expert” under the rules of the Securities and Exchange Commission.

On March 24, 2022, we entered into an employment agreement with Tal Keinan, Chief Executive Officer of the Company, effective as of January 1, 2022, which superseded all previous compensatory arrangements with Mr. Keinan (the “Keinan Employment Agreement”).

Compensation Arrangements. The Keinan Employment Agreement has an initial term of one year, subject to automatic renewal unless either party provides 60-days’ written notice of non-renewal. The Keinan Employment Agreement provides for a base salary of $500,000, subject to periodic review and increase (but not decrease) by the Compensation Committee and the Compensation Committee must review such base salary at least 90 days prior to the expiration of the Keinan Employment Agreement’s initial term. The Keinan Employment Agreement provides Mr. Keinan with a discretionary target annual incentive bonus equal to 100% of his base salary (the “Annual Bonus”) subject to certain performance metrics. Mr. Keinan’s actual Annual Bonus paid may be more or less than the target bonus. The Annual Bonus may be periodically reviewed and increased (but not decreased) at the discretion of the Company. The Keinan Employment Agreement further provides for (i) reasonable business expense reimbursements, (ii) reimbursement of Mr. Keinan’s reasonable tax preparation expenses and (iii) other standard employee benefits the Company makes available to similarly situated employees.

Equity Awards. Under the Keinan Employment Agreement, Mr. Keinan is entitled to a one-time, time-based restricted stock unit grant (the “RSU”) under our 2022 Incentive Award Plan (the “2022 Plan”). The RSU will vest over four years with 25% of the RSUs vesting on the first anniversary of the grant date and the remaining 75% of the RSUs will vest in equal monthly installments thereafter. Additionally, the RSUs will vest in full upon a Change in Control (as defined the 2022 Plan), provided Mr. Keinan executes a general release of claims and covenant not to sue. The RSUs will also be subject to vesting in full upon retirement if Mr. Keinan’s age plus years of service on his retirement date are equal to or greater than 65 (the “Rule of 65”). The RSUs will be subject to additional terms and conditions under the 2022 Plan.

Additionally, as discussed below, under the Keinan Employment Agreement, all stock option, restricted stock units and other equity-based incentive awards subject to time-based vesting criteria will vest in full (or become payable immediately, as the case may be) upon a termination of Mr. Keinan’s employment by us for any reason (i) other than “Cause;” (ii) other than death; (iii) other than “Disability”; or if Mr. Keinan resigns for “Good Reason” (as those terms are defined in the Keinan Employment Agreement).

Obligations Upon Certain Termination Events. Under the Keinan Employment Agreement, if we terminate Mr. Keinan’s employment for any reason (i) other than “Cause;” (ii) other than death; (iii) other than “Disability”; or if Mr. Keinan resigns for “Good Reason,” we will pay him, subject to the restrictions noted below, (i) a continuation of base salary for two years after the date of termination; (ii) an amount equal to the highest Annual Bonus paid to Mr. Keinan within the three years preceding termination, each (i) and (ii) in accordance with our ordinary payroll practices, and (iii) full vesting of any then-unvested, time-based equity awards.

Obligations in Connection with Death or Disability. In the event of Mr. Keinan’s death or Disability (as defined in the Keinan Employment Agreement), we will pay Mr. Keinan, subject to the restrictions noted below, (i) a prorated portion of his Annual Bonus based upon the applicable year’s target Annual Bonus multiplied by the percentage of the calendar year completed before terminating and (ii) full vesting of any then-unvested, time-based equity awards.

General Release and Restrictive Covenants. In addition, the payment of all severance benefits to Mr. Keinan is subject to him delivering an executed and irrevocable confidential separation agreement and general release of claims and his compliance with the following restrictive covenants:

On March 22, 2021, Sky entered into an employment agreement with Mr. Saltzman (the “Saltzman Employment Agreement”), which does not provide for potential payments upon a termination or change of control. For 2021, Mr. Saltzman received an annual salary of $400,000 and was eligible to receive an annual bonus. Mr. Saltzman has entered into Sky’s standard employee covenants agreement containing customary restrictive covenants. On March 24, 2021, we entered into an amendment to the Saltzman Employment Agreement in connection with his appointment as Chief Operating Officer.

On December 22, 2021, Sky entered into an amended and restated employment agreement with Mr. Gonzalez (the “Gonzalez Employment Agreement”). For 2021, Mr. Gonzalez received an annual salary of $300,000. Pursuant to the Gonzalez Employment Agreement, as part of his 2021 compensation, Mr. Gonzalez was awarded an incentive cash bonus of $1.95 million. Beginning in January 2022, Mr. Gonzalez is also eligible to receive a one-time per square foot incentive bonus, paid quarterly without duplication, which is to be determined based on the amount of new square footage of indoor space available for leasing by Sky or its subsidiaries to tenants in any given quarter. Mr. Gonzalez has entered into Sky’s standard employee covenants agreement containing customary restrictive covenants. On March 24, 2022, we entered into an amendment to the Gonzalez Employment Agreement in connection with his appointment as Chief Financial Officer. (Each amended employment agreement with Messrs. Saltzman or Gonzalez, the “Amendment.”)

Compensation Arrangements. Each Amendment provides that Messrs. Saltzman’s and Gonzalez’s base salary is subject to periodic review and increase (but not decrease) by the Compensation Committee. In the case of Mr. Saltzman, such periodic review and increase shall not commence until March 29, 2024. Each Amendment further provides for performance metrics with respect to each for Messrs. Saltzman’s and Gonzalez’s annual bonus. Each Amendment further provides for (i) reasonable business expense reimbursements; (ii) reimbursement of Messrs. Saltzman and Gonzalez’s reasonable tax preparation expenses and (iii) other standard employee benefits we make available to similarly situated employees. Existing compensation arrangements remain otherwise unaltered.

Obligations Upon Certain Termination Events. Under each Amendment, if we terminate Messrs. Saltzman’s or Gonzalez’s employment without “Cause,” or Messrs. Saltzman or Gonzalez resigns for “Good Reason” (as those terms are defined in each Amendment), we will pay Messrs. Saltzman or Gonzalez, subject to the restrictions noted below, a continuation of base salary equal to 24 months, paid in equal installments in accordance with our ordinary payroll practices. If we waive the restrictions in (i) and (ii) below in full or in part, the number of months of base salary paid as severance shall be adjusted to match such restriction period. For example, we may opt to require only a 12-month restriction period, in which case, Messrs. Saltzman or Gonzalez shall receive payment equal to that 12-month period.

General Release and Restrictive Covenants. In addition, the payment of all severance benefits to Messrs. Saltzman or Gonzalez is subject to each delivering an executed and irrevocable confidential separation agreement and general release of claims and Messrs. Saltzman’s or Gonzalez’s compliance with the following restrictive covenants:

The Keinan Employment Agreement and Amendments each provide for additional equity grants may be provided at the discretion of our board of directors or Compensation Committee. Such equity grants, if any, are subject to the Rule of 65 and additional terms and conditions as determined by our board of directors or Compensation Committee at time of grant, the 2022 Plan.

The Keinan Employment Agreement and Amendments each provide that any amount payable under the employment agreements are subject to claw-back or disgorgement, to the extent applicable, under (i) the policies or any claw-back policy adopted by us, (ii) the Dodd-Frank Wall Street Reform and Consumer Protection Act, as amended, and rules, regulations, and binding, published guidance thereunder and (iii) the Sarbanes-Oxley Act of 2002.

On March 22, 2022, the Compensation Committee approved the payment of discretionary performance bonuses with respect to 2021 to Messrs. Keinan, Saltzman and Gonzalez equal to $500,000, $200,000 and $300,000, respectively. Such bonuses were paid in early April 2022. Additionally, for 2022, the Compensation Committee approved that, upon the achievement of certain performance milestones, Mr. Keinan will be eligible to receive cash bonus up to a maximum of $500,000 in addition to any bonus he could obtain under his employment agreement.

Our named executive officers did not participate in, or otherwise receive any benefits under, any pension or retirement plan or non-qualified deferred compensation plan sponsored by us during the year ended December 31, 2021.

As of December 31, 2021, we did not have any securities authorized for issuance under equity compensation plans. In connection with the Business Combination, our stockholders approved the Sky Harbour Group Corporation 2022 Incentive Award Plan (the “2022 Plan”).

As previously disclosed in a Current Report on Form 8-K filed on January 31, 2022, on January 25, 2022, the Audit Committee of the Board of Directors approved the engagement of EisnerAmper LLP (“EA”) as the Company’s independent registered public accounting firm to audit the our consolidated financial statements as of and for the year ending December 31, 2022.

EA served as independent registered public accounting firm of Sky prior to the Business Combination. Accordingly, KPMG LLP (“KPMG”), YAC’s independent registered public accounting firm prior to the Business Combination, was informed that it would be replaced by EA as the Company’s independent registered public accounting firm following completion of its audit of YAC’s financial statements as of and for the year ended December 31, 2021, which consists only of the accounts of the pre-Business Combination special purpose acquisition company, YAC.

The audit report of KPMG on YAC’s, the Company’s legal predecessor, financial statements as of December 31, 2021 and 2020 and for the year ended December 31, 2021 and for the period from August 25, 2020 (inception) to December 31, 2020 did not contain an adverse opinion or a disclaimer of opinion, and was not qualified or modified as to uncertainties, audit scope or accounting principles.

During the period from August 25, 2020 (inception) to December 31, 2020, the year ended December 31, 2021, and the subsequent interim period through January 25, 2022, there were no (1) disagreements between YAC and KPMG on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which disagreements, if not resolved to their satisfaction would have caused them to make reference in connection with their opinion to the subject matter of the disagreements and (2) no “reportable events” (as defined in Item 304(a)(1)(v) of Regulation S-K under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) except as described in the following paragraph.

In our amended 2020 Annual Report, filed on May 24, 2021, our former management identified a material weakness existing as of December 31, 2020. 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. 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. 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). As a result, our former management determined that our internal controls over financial reporting were effective as of December 31, 2021

We have provided KPMG with a copy of the foregoing disclosures and have requested that KPMG furnish the Company with a letter addressed to the SEC stating whether it agrees with the statements made by the Company set forth above. A copy of KPMG’s letter dated January 31, 2022 is filed as Exhibit 16.1 to our Current Report on Form 8-K dated January 31, 2022. We also provided each of EA and KPMG with a copy of the foregoing additional disclosures and an opportunity to each to present its views in a brief statement to be included in this proxy statement if it believes that any of the statements made by the Company under this section “Change in Independent Registered Public Accounting Firm” are incorrect or incomplete. Each of EA and KPMG advised us that it reviewed the disclosures under this section “Change in Independent Registered Public Accounting Firm” and has no basis on which to submit such a statement.

The formal written charter for our audit committee requires that the audit committee (i) review and approve, in advance, the scope and plans for the audits and the audit fees and (ii) approve in advance (or, where permitted under the rules and regulations of the SEC, subsequently) all non-audit and tax services to be performed by the independent auditor that are not otherwise prohibited by law or regulations and any associated fees. Our audit committee may, in accordance with applicable law, establish pre-approval policies and procedures for the engagement of independent accountants to render services to the Company.

Prior to the Business Combination, all of the services listed in the table above provided by KPMG were approved by YAC in accordance with its policies then in effect. All of the services provided by KPMG subsequent to the Business Combination were approved by our audit committee.