false 0001823587 0001823587 2025-12-15 2025-12-15 0001823587 skyh:ClassACommonStockParValue00001PerShareCustomMember 2025-12-15 2025-12-15 0001823587 skyh:WarrantsEachWholeWarrantExercisableForOneShareOfClassACommonStockAtAnExercisePriceOf1150PerShareCustomMember 2025-12-15 2025-12-15

 

 

 

 

 

Date of Report (Date of earliest event reported) December 15, 2025

 

(Exact name of registrant as specified in its charter)

 

 

 

Registrant’s telephone number, including area code

 

(Former name or former address, if changed since last report.)

 

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

 

Securities registered pursuant to Section 12(b) of the Act:

 

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

 

Emerging growth company ☒

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

 

 

 

On December 8, 2025, Sky Harbour LLC (the “Borrower”), a subsidiary of Sky Harbour Group Corporation (the “Company”) issued a non-convertible, unsecured promissory note to YA II PN, Ltd., a Cayman Islands exempt limited company, or its registered assigns (“Yorkville”), in the aggregate principal amount of $15 million (the “Yorkville Promissory Note”). The issue price for the Yorkville Promissory Note was 100% of the aggregate principal amount thereof.

 

The Yorkville Promissory Note accrues interest at a rate of 7.75% per annum (or 18% upon the occurrence of an event of default) and matures on June 8, 2027. Beginning on July 8, 2026, and continuing on the same day of each of the twelve successive months thereafter, the Borrower shall repay a portion of the outstanding balance of the Yorkville Promissory Note in an amount equal to $1,250,000. The obligations of the Borrower under the Yorkville Promissory Note are guaranteed by the Company pursuant to a separate guaranty agreement between the Company and Yorkville. The Yorkville Promissory Note contains customary representations and warranties by the Borrower and the Company and customary events of default. The proceeds of the Yorkville Promissory Note may be used for working capital and general corporate purposes.

 

On December 15, 2025, in connection with and pursuant to the Yorkville Promissory Note, the Company issued 50,000 shares (the “Registered Shares”) of the Company’s Class A common stock, par value $0.0001 per share, to Yorkville in a registered direct offering. The Registered Shares are being offered and sold pursuant to a shelf registration statement on Form S-3 (File No. 333-278275), filed with the Securities and Exchange Commission (“SEC”) on March 27, 2024, and declared effective by the SEC on April 10, 2024, and the accompanying base prospectus included therein, as supplemented by the prospectus supplement filed with the SEC on December 15, 2025. A copy of the opinion of Morrison & Foerster LLP with respect to the validity of the shares in the offering is filed herewith as Exhibit 5.1.

 

 

(d) Exhibits. The Exhibit Index set forth below is incorporated herein by reference.

 

 

 

 

 

 

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

Dated: December 15, 2025