AST SpaceMobile prices $1B convertible notes at 20% premium

AST SpaceMobile raised $1 billion in convertible debt to fund satellite network expansion, pricing notes at a 20% conversion premium with capped calls limiting dilution.

AST SpaceMobile Inc. priced $1 billion of convertible senior notes due 2034 on Wednesday, offering a 1.625% coupon and an initial conversion price of $79.57 a share, a 20% premium to the $66.31 closing price.

"The structure gives ASTS cheap financing while the capped call effectively caps dilution at $149.20 per share," said Tom Brennan, M&A and capital markets editor at Edgen. "It's a textbook move for a high-growth company that needs cash but wants to protect existing holders."

The notes carry a 1.625% interest rate, payable semiannually, and mature Feb. 1, 2034. Net proceeds are estimated at $983.6 million, or $1.13 billion if underwriters exercise a 13-day option to purchase an additional $150 million. AST SpaceMobile will use $96.9 million to pay for the capped call transactions, which cap dilution at $149.20 a share — a 125% premium to Wednesday's close. The remaining funds will go toward growth initiatives, potential acquisitions to vertically integrate the business, and securing additional launch capacity.

The capital raise gives AST SpaceMobile, which is building a space-based cellular broadband network for standard smartphones, significant financial runway to deploy its satellite constellation. The company faces high upfront costs for satellite manufacturing and launch services, and the convertible structure allows it to access debt markets at a low coupon while deferring equity dilution. Shares fell on the news, reflecting near-term dilution concerns, though the capped call structure mitigates the overhang.

AST SpaceMobile granted initial purchasers an option to buy up to an additional $150 million in notes for settlement within 13 days of the July 20 closing date. The notes are being sold to qualified institutional buyers under Rule 144A and are not registered under the Securities Act.

The company's decision to raise capital through convertible notes rather than equity reflects management's confidence in the stock's long-term trajectory. At $149.20, the capped call cap implies the company sees substantial upside from current levels. The 1.625% coupon is below what a non-investment-grade company would typically pay on straight debt, reflecting the conversion option's value to noteholders.

AST SpaceMobile currently has no specific acquisition targets but said it may pursue partnerships or acquisitions to reduce reliance on third-party launch providers such as SpaceX and Blue Origin — a key risk factor for any satellite operator. The company's space-based network aims to provide 4G and 5G connectivity to standard smartphones globally, targeting nearly 6 billion mobile subscribers, and competes with SpaceX's Starlink direct-to-cell service.

This article is for informational purposes only and does not constitute investment advice.