York Space Systems Inc. Completes $629M IPO, Formalizes Corporate Conversion and Governance
YSS is trading near its 52-week low of $32.64 (4.2% above the low).
Summary
York Space Systems Inc. announced the pricing and closing of its $629 million IPO, alongside its conversion to a Delaware corporation, appointment of a new board, and the formalization of key governance and incentive agreements.
Key Events · Financing and Capital Events · YSS
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IPO Completion and Pricing
The company priced its initial public offering (IPO) at $34.00 per share, selling 18,500,000 shares and raising $629 million. The underwriters were granted a 30-day option to purchase an additional 2,775,000 shares.
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Corporate Conversion
On January 28, 2026, the company converted from Yellowstone Midco Holdings II, LLC (a Delaware limited liability company) to York Space Systems Inc. (a Delaware corporation), filing a new certificate of incorporation and adopting new bylaws.
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New Board of Directors Appointed
Seven new directors were appointed to the company's board of directors on January 28, 2026, establishing the governance structure for the newly public entity.
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Material Definitive Agreements
In connection with the IPO, the company entered into an underwriting agreement, a tax receivable agreement, a registration rights agreement, a director nomination agreement, voting agreements, and an amended and restated consulting agreement.
Analysis · YSS · Manufacturing
This 8-K filing formally announces the pricing and closing of York Space Systems Inc.'s initial public offering (IPO), a highly significant event for the company. The IPO raised $629 million through the sale of 18.5 million shares at $34.00 per share, providing substantial capital for the company's growth. The filing also details the critical corporate conversion from a Delaware limited liability company to a Delaware corporation, which became effective on January 28, 2026. Furthermore, it outlines the appointment of seven new directors to the board and the adoption of several material definitive agreements, including an underwriting agreement, a tax receivable agreement, a registration rights agreement, a director nomination agreement, voting agreements, an amended and restated consulting agreement, and a 2026 Omnibus Incentive Plan. These comprehensive changes establish the governance and capital structure for the newly public entity, marking a pivotal moment in its corporate trajectory.
How filings like this one have moved
In the 30 days to Oct 3, 2026, 40.8% of the 314 measured filings Wiseek scored 9 moved their stock by 5% or more by the next session's close. The median move was -0.47%. These are measured outcomes after filings of this importance, not a forecast for this one.
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At the time of this filing, YSS was trading at $34.00 on NYSE in the Manufacturing sector, with a market capitalization of approximately $36.6B. The 52-week trading range was $32.64 to $38.47. This filing was assessed with positive market sentiment and an importance score of 9 out of 10.