Every 424B that Sky Harbour Group Corporation (SKYH) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow SKYH and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full SKYH filings page.
Sky Harbour Group Corporation (SKYH) is conducting a registered direct offering of 1,000,000 shares of its Class A common stock at $10.00 per share to M-COR Capital LLC, for $10,000,000 in gross proceeds. The shares are sold directly to the investor without any underwriter or placement agent, so no underwriting discounts or commissions are payable.
Net proceeds are estimated at approximately $10.0 million, which the company currently intends to use, together with existing cash, cash equivalents and marketable securities, for general corporate purposes. Shares outstanding will increase from 38,583,152 as of August 25, 2026 to 39,583,152 after the offering. The company highlights potential dilution to new investors and notes that its management has broad discretion over how the proceeds are applied.
Sky Harbour Group Corporation is conducting a registered direct offering of 4,000,000 shares of Class A common stock at $10.00 per share to certain investors, without a placement agent or underwriter, for gross proceeds of $40,000,000.
The company estimates net proceeds of about $39.8 million after offering expenses of approximately $150,000, which it currently intends to use for general corporate purposes alongside existing cash, cash equivalents and marketable securities. A 90‑day lock-up will restrict sales by directors, executive officers and certain 5% holders.
The share count will increase from 34,510,324 to 38,510,324 shares of common stock. Net tangible book value was $4.75 per share as of June 30, 2026 and would rise to $5.30 per share on an as-adjusted basis, implying an immediate dilution of about $4.70 per share to new investors, despite a $0.55 per-share accretion to existing stockholders.
Sky Harbour Group Corporation is issuing 40,000 shares of Class A common stock in a registered direct offering to Yorkville, tied to a non-convertible unsecured $10 million 2026 Yorkville Promissory Note. The company will not receive any cash proceeds from this share issuance, which serves as consideration connected to the note.
Sky Harbour recently entered into two Yorkville promissory notes totaling $25 million in principal, each bearing 7.75% annual interest and maturing on June 8, 2027, with scheduled monthly repayments beginning July 8, 2026. As of January 30, 2026, 34,031,380 Class A shares were outstanding, rising to 34,071,380 after this offering. The filing highlights that Sky Harbour already carries substantial debt, including $166.3 million of Series 2021 Bonds, a term loan facility of up to $200 million and an expected $150 million Series 2026 bond issuance, and warns that high leverage and secured debt covenants could increase default and foreclosure risks. The company also notes that prior and potential future equity and equity-linked issuances, including 7,911,580 shares sold in 2024 and 50,000 shares issued to Yorkville in 2025, may dilute existing holders and pressure the stock price.
Sky Harbour Group Corporation is offering up to $100,000,000 of Class A common stock through an at-the-market equity program under an amended and restated sales agreement with B. Riley Securities and Yorkville Securities as sales agents. As of this supplement, it has sold 110,148 shares for approximately $1.4 million, leaving about $98.6 million of stock available under the program.
The company currently intends to use any net proceeds for working capital, site acquisition and marketing, capital expenditures, general corporate purposes, and potential repayment of a $15.0 million unsecured Yorkville promissory note bearing 7.75% annual interest and maturing on June 8, 2027. The filing highlights risks including management’s broad discretion over proceeds, potential dilution from future share issuances, share price pressure from additional sales, and differing purchase prices for investors buying at different times. Yorkville’s role as both a sales agent affiliate and lender creates a disclosed conflict of interest addressed under FINRA Rule 5121.
Sky Harbour Group Corporation is issuing 50,000 shares of Class A common stock in a registered direct offering to YA II PN, Ltd. (Yorkville). The shares are being issued as equity consideration in connection with a $15 million non-convertible, unsecured promissory note to Yorkville, so Sky Harbour will not receive any cash proceeds from this stock issuance and will bear related offering expenses.
The Yorkville Promissory Note accrues interest at 7.75% per year (increasing to 18% upon an event of default), matures on June 8, 2027, and requires twelve monthly repayments of $1,250,000 beginning July 8, 2026. The note is guaranteed by Sky Harbour Group Corporation, and the proceeds may be used for working capital and general corporate purposes. Following this issuance, Class A common stock outstanding will be 33,989,673 shares as of December 11, 2025.