On May 12, 2023, Joanna Coles resigned from her position as Chairperson of the Board of Directors (and as a director) of Northern Star Investment Corp. III in order to focus on other business opportunities. Additionally, on May 12, 2023 and May 15, 2023, Justine Cheng and James Vincent resigned from their positions as members of the Board of Directors of the Company, respectively, each to focus on other business opportunities.

On May 17, 2023, the Company appointed Howard Yeaton and David Shapiro to fill the vacancies on the Board of Directors created by the foregoing resignations. Each of Messrs. Yeaton and Shapiro will serve on the audit committee, compensation committee and nominating committee of the Company.

Mr. Yeaton has served as the managing principal of Financial Consulting Strategies, LLC, since 2003. Mr. Yeaton served as Interim Chief Financial Officer of Bark Inc. from November 2021 to January 2023. From October 2018 to December 2019, Mr. Yeaton served as Chief Executive Officer of Akers Biosciences Inc., a biotechnology company, now merged with MyMD Pharmaceuticals Inc. from October 2018 to August 2020, he also served as Interim Chief Financial Officer of Akers Biosciences Inc. From October 2014 to November 2019, Mr. Yeaton served as Interim Chief Financial Officer of Propel Media Inc. Mr. Yeaton is also a member of the board of directors of Northern Star Investment Corp.

II and Northern Star Investment Corp. IV. Mr. Shapiro has served as the Co-CEO of Prophetably Inc. since May 2022.

He was Senior Vice President - Corporate Development of Innovation at Thrasio from May 2021 until May 2022. Mr. Shapiro was affiliated with Propel Media from October 2011 until December 2020, most recently serving as its Chief Operating Officer from April 2016 to December 2020. Mr. Shapiro also served in a variety of other capacities while at Propel Media and its subsidiaries, including as Chief Corporate Development Officer, General Counsel and Executive Vice President, Business & Legal Affairs.

While at Propel Media, Mr. Shapiro was responsible for the company's acquisition of DeepIntent. From September 2008 to October 2011, Mr. Shapiro served as a consultant to media and Internet companies. From May 2006 to September 2008, Mr. Shapiro served as the Senior Vice President, Business & Legal Affairs and Secretary to DIC Entertainment.

Prior to that, Mr. Shapiro was a member of the Office of the CEO and the Head of Corporate Projects and Initiatives at LRN Corporation and a corporate attorney at Wilson Sonsini Goodrich and Rosati, where he specialized in venture capital financings and mergers and acquisitions for public and private technology companies. Earlier in his career, he served as an Assistant District Attorney in the Manhattan District Attorney's Office. Mr. Shapiro is also a member of the board of directors of Northern Star Investment Corp.

II.