STRE Supernova Partners Acquisition Company III Ltd

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On May 25, 2021, Supernova Partners Acquisition Company III, Ltd. (the “Company”) received a notice (“Notice”) from the New York Stock Exchange (the “NYSE”) indicating that it is not in compliance with NYSE continued listing requirements under the timely filing criteria established in Section 802.01E of the NYSE Listed Company Manual as a result of its failure to timely file the Form 10-Q for the fiscal quarter ended March 31, 2021 (the “Form 10-Q”). The Rule requires listed companies to timely file all required periodic financial reports with the Securities and Exchange Commission (“SEC”). The Notice has no immediate effect on the listing or trading of the Company’s securities on the NYSE.

On April 12, 2021, the Acting Director of the Division of Corporation Finance and Acting Chief Accountant of the SEC together issued a statement regarding the accounting and reporting considerations for warrants issued by special purpose acquisition companies entitled “Staff Statement on Accounting and Reporting Considerations for Warrants Issued by Special Purpose Acquisition Companies” (the “SEC Statement”). As result of the SEC Statement, the Company’s management reevaluated the accounting treatment of (i) the redeemable warrants that were included in the units issued by the Company in its initial public offering and (ii) the redeemable warrants that were issued in a private placement (collectively, the “Warrants”). As reported by the Company in its Form 12b-25 filed with the SEC on May 14, 2021, given the scope of the process for evaluating the impact of the SEC Statement on the Company’s financial statements, the Company was unable to file the Form 10-Q within the prescribed time period without unreasonable effort or expense. Since receiving the non-compliance notice, the Company continues to work with its independent accounting firm in order to file the Form 10-Q as expeditiously as practicable. The Company is in compliance with all other NYSE continued listing requirements.

On June 2, 2021, the Company issued a press release announcing its receipt of the Notice. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.