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Debt | 12 Months Ended
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Dec. 31, 2025
Debt Disclosure [Abstract] |
Debt | 7. Debt Long-term debt consists of the following (in thousands):
|  | As of December 31,
|  | 2025 |  |  | 2024 |  |
2032 4.25% Convertible Notes |  | $ | 50,000 |  |  | $ | - |  |
2032 2.375% Convertible Notes |  |  | 575,000 |  |  |  | - |  |
2036 2.00% Convertible Notes |  |  | 1,150,000 |  |  |  | - |  |
2034 Convertible Notes |  |  | - |  |  |  | 147,959 |  |
Prosperity Capital Equipment Loan |  |  | 12,552 |  |  |  | 15,000 |  |
Prosperity Term Loan |  |  | 4,242 |  |  |  | 4,506 |  |
Trinity Capital Equipment Loan(1) |  |  | 52,641 |  |  |  |  |
UBS Bridge Financing Loan |  |  | 420,000 |  |  |  | - |  |
Total debt |  |  | 2,264,435 |  |  |  | 167,465 |  |
Less: current portion of long-term debt |  |  | (11,999 | ) |  |  | (2,919 | ) |
Less: unamortized debt issuance costs(1) |  |  | (44,853 | ) |  |  | (8,973 | ) |
Long-term debt, net of issuance costs |  | $ | 2,207,583 |  |  | $ | 155,573 |  |
(1) Includes unamortized end of term payments of $4.0 million. The aggregate future contractual maturities of long-term debt were as follows as of December 31, 2025 (in thousands):
Year |  | As of December 31, 2025 |
2026 |  | $ | 11,946 |
2027 |  |  | 433,159 |
2028 |  |  | 18,044 |
2029 |  |  | 12,586 |
2030 |  |  | 12,077 |
Thereafter |  |  | 1,776,623 |
Total principal |  | $ | 2,264,435 |
As of December 31, 2025, the aggregate fair value of the Company’s debt was approximately $2.5 billion, which included the fair value of the 2032 4.25% Convertible Notes of $147.2 million, the 2032 2.375% Convertible Notes of $760.8 million, and the 2036 2.00% Convertible Notes of $1,156.7 million. As of December 31, 2024, the aggregate fair value of the Company’s debt was $562.4 million, which included the fair value of the 2034 Convertible Notes of $542.9 million. The fair value of the 2032 4.25% Convertible Notes was determined based on recent observable market quote in an active market and rolled forward to year-end using significant inputs derived from, or corroborated by, observable market data (Level 2 inputs). The fair value of the 2032 2.375% Convertible Notes and the 2036 2.00% Convertible Notes were determined based on observable market quotes in an active market around year-end (Level 1 inputs). The fair value of the 2034 Convertible Notes was determined based on a lattice-based binomial model using significant inputs derived from, or corroborated by, observable market data (Level 2 inputs). The fair value of remaining debt has been determined under the discounted cash flow method using significant inputs derived from, or corroborated by, observable market data (Level 2 inputs). Debt discount and issuance costs are comprised of costs incurred in connection with debt issuance and are presented in the consolidated balance sheets as a deduction to the carrying amount of the associated debt and amortized using the effective interest method to interest expense over the term of the debt. During the years ended December 31, 2025, 2024 and 2023, the Company recognized $31.8 million, $18.7 million and $4.5 million of interest expense on outstanding debt, respectively. The interest expense included amortization of debt issuance costs of $2.7 million, $3.7 million and $1.2 million for the years ended December 31, 2025, 2024 and 2023, respectively. As of December 31, 2025, the Company was in compliance with all debt covenant requirements. 2032 4.25% Convertible Notes On January 27, 2025, the Company issued $460.0 million aggregate principal amount of convertible senior notes due 2032 (the “2032 4.25% Convertible Notes”), including the exercise in full of the option granted to the initial purchasers to purchase up to $60.0 million aggregate principal amount of notes. The 2032 4.25% Convertible Notes are senior, unsecured obligations of the Company and bear interest at a fixed rate of 4.25% per year, payable semiannually in arrears on March 1 and September 1 of each year, beginning on September 1, 2025. The 2032 4.25% Convertible Notes will mature on March 1, 2032, unless earlier repurchased, redeemed, or converted. Holders may convert their notes at their option at any time prior to the close of business on the business day immediately preceding December 1, 2031 only under the following conditions: (1) during any calendar quarter commencing after the calendar quarter ending on June 30, 2025 (and only during such calendar quarter), if the last reported sale price of the Company’s Class A Common Stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any ten consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company’s Class A Common Stock and the conversion rate on each such trading day; (3) if the Company issues a notice of redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. On or after December 1, 2031 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes at any time, at the option of the holder regardless of the foregoing conditions. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of the Company’s Class A Common Stock or a combination of cash and shares of the Company’s Class A Common Stock, at the Company’s election. The Company may not redeem the notes prior to March 6, 2029. The Company may redeem for cash all or any portion of the notes, at the Company’s option, on or after March 6, 2029, but only if (1) the liquidity condition (as defined in the indenture) is satisfied and (2) the last reported sale price of the Company’s Class A Common Stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period ending on, and including, the trading day immediately preceding the date on which the Company provides notice of redemption, at a redemption price equal to 100% of the principal amount of the notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date. No sinking fund is provided for the notes. The initial conversion rate for the 2032 4.25% Convertible Notes is 37.0535 shares of Class A Common Stock per $1,000 principal amount of the notes, which represents an initial conversion price of approximately $26.99 per share of the Company’s Class A Common Stock. The conversion rate and conversion price are subject to customary adjustments upon the occurrence of certain events. In addition, holders who convert their notes in connection with a make-whole fundamental change or a notice of redemption may be entitled to an increase in the conversion rate. The 2032 4.25% Convertible Notes include customary covenants and certain events of default after which the notes may be declared immediately due and payable and set forth certain types of bankruptcy or insolvency events of default after which the notes become automatically due and payable. On July 3, 2025, July 31, 2025 and October 29, 2025, the Company completed the repurchase of $225.0 million, $135.0 million and $50.0 million, respectively, of the outstanding principal amount of the 2032 4.25% Convertible Notes in separate, privately negotiated repurchase transactions with a limited number of note holders for an aggregate repurchase price of approximately $502.9 million, $346.9 million and $161.1 million, respectively, which included accrued and unpaid interest on the repurchased 2032 4.25% Convertible Notes. The repurchase was funded with the net proceeds from a registered direct offering of 9,450,268 shares, 5,775,635 shares and 2,048,849 shares, respectively, of the Company’s Class A Common Stock to the same note holders participating in the note repurchase. The note repurchases and the shares offering were cross-conditional. The Company accounted for the note repurchases as induced conversions and recognized a $505.5 million charge to equity for $405.8 million of carrying value of the notes repurchased including accrued and unpaid interest and $99.7 million of fair value of consideration paid to holders of the 2032 4.25% Convertible Notes in excess of the value to which they were entitled to receive pursuant to the original conversion terms (“Sweetener Payment”). The Company recorded the Sweetener Payment and the $3.4 million of third party transaction costs incurred in other (expense) income, net in the Company’s consolidated statements of operations. On and around February 20, 2026, the Company completed an additional repurchase of approximately $46.5 million of the outstanding principal amount of the 2032 4.25% Convertible Notes in separate, privately negotiated repurchase transactions with a limited number of note holders for an aggregate repurchase price of approximately $180.5 million. The repurchase was funded with the net proceeds from a registered direct offering of 1,862,741 shares of the Company’s Class A Common Stock to the same note holders participating in the note repurchase. The note repurchases and the shares offering were cross-conditional. The Company will account for the note repurchase as an induced conversion. In the first quarter of 2026, the Company expects to recognize an additional charge to equity for the carrying value of the notes repurchased and the related Sweetener Payment. The induced conversion expenses will include the related Sweetener Payment and the third party transaction costs incurred and will be presented in other (expense) income, net in the Company’s consolidated financial statements. 2032 2.375% Convertible Notes On July 29, 2025, the Company issued $575.0 million aggregate principal amount of convertible senior notes due 2032 (the “2032 2.375% Convertible Notes”), including the exercise in full of the option granted to the initial purchasers to purchase up to $75.0 million aggregate principal amount of notes. The 2032 2.375% Convertible Notes are senior, unsecured obligations of the Company and bear interest at a fixed rate of 2.375% per year, payable semiannually in arrears on April 15 and October 15 of each year, beginning on April 15, 2026. The 2032 2.375% Convertible Notes will mature on October 15, 2032, unless earlier repurchased, redeemed, or converted. Holders may convert their notes at their option at any time prior to the close of business on the business day immediately preceding July 15, 2032 only under the following conditions: (1) during any calendar quarter commencing after the calendar quarter ending on December 31, 2025 (and only during such calendar quarter), if the last reported sale price of the Company’s Class A Common Stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any ten consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company’s Class A Common Stock and the conversion rate on each such trading day; (3) if the Company issues a notice of redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. On or after July 15, 2032 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes at any time, at the option of the holder regardless of the foregoing conditions. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of the Company’s Class A Common Stock or a combination of cash and shares of the Company’s Class A Common Stock, at the Company’s election. The Company may not redeem the notes prior to October 22, 2029. The Company may redeem for cash all or any portion of the notes, at the Company’s option, on or after October 22, 2029, but only if (1) the liquidity condition (as defined in the indenture) is satisfied and (2) the last reported sale price of the Company’s Class A Common Stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period ending on, and including, the trading day immediately preceding the date on which the Company provides notice of redemption, at a redemption price equal to 100% of the principal amount of the notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date. No sinking fund is provided for the notes. The initial conversion rate for the 2032 2.375% Convertible Notes is 13.8750 shares of Class A Common Stock per $1,000 principal amount of the notes, which represents an initial conversion price of approximately $72.07 per share of the Company’s Class A Common Stock. The conversion rate and conversion price are subject to customary adjustments upon the occurrence of certain events. In addition, holders who convert their notes in connection with a make-whole fundamental change or a notice of redemption may be entitled to an increase in the conversion rate. The 2032 2.375% Convertible Notes include customary covenants and certain events of default after which the notes may be declared immediately due and payable and set forth certain types of bankruptcy or insolvency events of default after which the notes become automatically due and payable. On and around February 20, 2026, the Company completed the repurchase of $250.0 million of the outstanding principal amount of the 2032 2.375% Convertible Notes in separate, privately negotiated repurchase transactions with a limited number of note holders for an aggregate repurchase price of approximately $433.7 million, which included accrued and unpaid interest on the repurchased 2032 2.375% Convertible Notes. The repurchase was funded with the net proceeds from a registered direct offering of 4,475,223 shares of the Company’s Class A Common Stock to the same note holders participating in the note repurchase. The note repurchases and the shares offering were cross-conditional. The Company will account for the note repurchase as an induced conversion. In the first quarter of 2026, the Company expects to recognize an additional charge to equity for the carrying value of the notes repurchased and the related Sweetener Payment. The induced conversion expenses will include the related Sweetener Payment and the third party transaction costs incurred and will be presented in other (expense) income, net in the Company’s consolidated financial statements. 2036 2.00% Convertible Notes On October 24, 2025, the Company issued $1,000.0 million aggregate principal amount of convertible senior notes due 2036 (the “Notes”) with an option by the initial purchasers to purchase up to an additional $150.0 million aggregate principal amount of the Notes. On October 27, 2025, the Company was notified by the initial purchasers of the Notes of the exercise in full of their option to purchase an additional $150.0 million aggregate principal amount of the Notes (the “Option Notes”, and together with the Notes, the “2036 2.00% Convertible Notes”). On October 29, 2025, the Company consummated the sale of the Option Notes to the initial purchasers. The 2036 2.00% Convertible Notes are senior, unsecured obligations of the Company and bear interest at a fixed rate of 2.00% per year, payable semiannually in arrears on January 15 and July 15 of each year, beginning on July 15, 2026. The 2036 2.00% Convertible Notes will mature on January 15, 2036, unless earlier repurchased, redeemed, or converted. Holders may convert their notes at their option at any time prior to the close of business on the business day immediately preceding October 15, 2035 only under the following conditions: (1) during any calendar quarter commencing after the calendar quarter ending on March 31, 2026 (and only during such calendar quarter), if the last reported sale price of the Company’s Class A Common Stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any ten consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Company’s Class A Common Stock and the conversion rate on each such trading day; (3) if the Company issues a notice of redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. On or after October 15, 2035 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes at any time, at the option of the holder regardless of the foregoing conditions. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of the Company’s Class A Common Stock or a combination of cash and shares of the Company’s Class A Common Stock, at the Company’s election. The Company may not redeem the notes prior to January 22, 2029. The Company may redeem for cash all or any portion of the notes, at the Company’s option, on or after January 22, 2029, but only if (1) the liquidity condition (as defined in the indenture) is satisfied and (2) the last reported sale price of the Company’s Class A Common Stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period ending on, and including, the trading day immediately preceding the date on which the Company provides notice of redemption, at a redemption price equal to 100% of the principal amount of the notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date. No sinking fund is provided for the notes. The initial conversion rate for the 2036 2.00% Convertible Notes is 10.3845 shares of Class A Common Stock per $1,000 principal amount of the notes, which represents an initial conversion price of approximately $96.30 per share of the Company’s Class A Common Stock. The conversion rate and conversion price are subject to customary adjustments upon the occurrence of certain events. In addition, holders who convert their notes in connection with a make-whole fundamental change or a notice of redemption may be entitled to an increase in the conversion rate. The 2036 2.00% Convertible Notes include customary covenants and certain events of default after which the notes may be declared immediately due and payable and set forth certain types of bankruptcy or insolvency events of default after which the notes become automatically due and payable. 2036 2.25% Convertible Notes On February 17, 2026, the Company issued $1,000.0 million aggregate principal amount of convertible senior notes due 2036 (the “2.25% Notes”) with an option by the initial purchasers to purchase up to an additional $150.0 million aggregate principal amount of the 2.25% Notes. On February 19, 2026, the Company was notified by the initial purchasers of the 2.25% Notes of the exercise of their option to purchase an additional $75.0 million aggregate principal amount of the 2.25% Notes (the “2.25% Option Notes”, and together with the 2.25% Notes, the “2036 2.25% Convertible Notes”). On February 20, 2026, the Company consummated the sale of the 2036 2.25% Convertible Notes to the initial purchasers. The 2036 2.25% Convertible Notes are senior, unsecured obligations of the Company and bear interest at a fixed rate of 2.25% per year, payable semiannually in arrears on April 15 and October 15 of each year, beginning on October 15, 2026. The 2036 2.25% Convertible Notes will mature on April 15, 2036, unless earlier converted or repurchased. Holders may convert their notes at their option at any time prior to the close of business on the business day immediately preceding January 15, 2036 only under the following conditions: (1) during any calendar quarter commencing after the calendar quarter ending on June 30, 2026 (and only during such calendar quarter), if the last reported sale price of the Company’s Class A common stock, par value $0.0001 per share, for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any ten consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of the notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of the Class A Common Stock and the conversion rate on each such trading day; or (3) upon the occurrence of specified corporate events. On or after January 15, 2036 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their notes, at any time, in integral multiples of $1,000 principal amount, at the option of the holder regardless of the foregoing conditions. Upon conversion, the Company may satisfy its conversion obligation by paying or delivering, as the case may be, cash, shares of Class A Common Stock or a combination of cash and shares of Class A Common Stock, at the Company’s election. The Company may not redeem the notes prior to the maturity date, and no sinking fund is provided for the notes. The initial conversion rate for the 2036 2.25% Convertible Notes is 8.5982 shares of Class A Common Stock per $1,000 principal amount of the notes, which represents an initial conversion price of approximately $116.30 per share of the Company’s Class A Common Stock. The conversion rate and conversion price are subject to customary adjustments upon the occurrence of certain events. In addition, following certain corporate events that occur prior to the maturity date of the notes, the Company will, under certain circumstances, increase the conversion rate of the notes for a holder who elects to convert its notes in connection with such a corporate event. The 2036 2.25% Convertible Notes include customary covenants and certain events of default after which the notes may be declared immediately due and payable and set forth certain types of bankruptcy or insolvency events of default after which the notes become automatically due and payable. 2034 Convertible Notes Pursuant to the Convertible Security Investment Agreement (the “Investment Agreement”) which the Company entered into with certain investors, the Company issued subordinated convertible notes (the “2034 Convertible Notes”) for an aggregate principal amount of $110.0 million on January 22, 2024 to AT&T Venture Investments, LLC (“AT&T”), Google LLC (“Google”) and Vodafone Ventures Limited (“Vodafone”), and for an aggregate principal amount of $35.0 million on May 23, 2024 to Verizon Communications, Inc. (“Verizon”). The 2034 Convertible Notes bear interest at a rate of 5.50% per year, payable semi-annually in arrears on June 30 and December 30 of each year, beginning on June 30, 2024. The Company had the option to pay interest on the 2034 Convertible Notes in cash or in kind. The Company elected to pay interest on the 2034 Convertible Notes in kind on June 30, 2024, resulting in the principal amount of the 2034 Convertible Notes being increased by approximately $3.0 million and interest to be accrued on such increased principal amount in subsequent interest periods. The Company elected to pay interest on the 2034 Convertible Notes in cash on December 30, 2024. On or after 12 months after date of issuance, the Company may require the holders of the 2034 Convertible Notes to convert at an initial conversion rate of 173.9130 shares of Class A Common Stock per $1,000 principal amount of 2034 Convertible Notes (equivalent to an initial conversion price of $5.75 per share of Class A Common Stock) at its option, if the VWAP of the Class A Common Stock has been at least 130% of the conversion price then in effect for 30 consecutive trading days, on the immediately succeeding trading day after the last trading day of such 30 day period. On January 22, 2025, the Company notified the holders of the 2034 Convertible Notes that the Company exercised its option to require all of such notes to be converted into shares of the Company’s Class A Common Stock. In the first quarter of 2025, the then outstanding principal amount of the 2034 Convertible Notes, which included an additional interest accrual of approximately $0.5 million, was converted into 25,818,541 shares of the Company’s Class A Common Stock and the Company’s obligation under the 2034 Convertible Notes was automatically cancelled upon such share issuance. Prosperity Capital Equipment Loan On August 14, 2023, AST LLC and certain other subsidiaries of the Company entered into a loan agreement with Lone Star State Bank of West Texas (“Lone Star”), succeeded by Prosperity Bank by merger with Lone Star, providing for a $15.0 million principal term loan secured by certain real property fixtures and equipment in one of the Company’s Texas facilities (the “Lone Star Loan Agreement”). The entire term loan amount was borrowed on September 19, 2023. Borrowings accrue interest at the Prime Rate plus 0.75%, subject to a ceiling rate. As of December 31, 2025, the effective interest rate on the borrowings is 8.25% per annum. Interest payments are due and payable on a monthly basis. Interest payments began in September 2023 and principal payments began in April 2025. Principal repayments are thereafter due in 48 equal monthly installments until January 2029, the maturity date of the loan. In connection with the Lone Star Loan Agreement, the Company deposited a cash balance of $15.0 million in the Lone Star Bank Money Market Fund. The Lone Star Loan Agreement includes certain customary affirmative and negative covenants. As part of the AST Companies (defined below) entering into the Trinity Capital Equipment Loan, the AST Companies and Prosperity Bank amended the Lone Star Loan Agreement whereby Prosperity Bank released the lien on certain real property fixtures and equipment and the AST Companies pledged the $15.0 million deposit in the Lone Star Bank Money Market Fund as a security for the loan. Prosperity Term Loan On December 8, 2021, the Company’s subsidiary, AST & Science Texas, LLC, executed an agreement to purchase real property, including offices, industrial warehouse buildings and equipment for a total purchase price of $8.0 million. In connection with the purchase, AST & Science Texas, LLC entered into an agreement (the “Term Loan Credit Agreement”) with Lone Star, succeeded by Prosperity Bank by merger with Lone Star, to issue a term promissory note for $5.0 million with a maturity date of December 8, 2028 that is secured by the property. Borrowings under the Term Loan Credit Agreement bear interest at a fixed rate equal to 4.20% per annum until December 2026, and from December 2026 until December 2028 at a fixed rate per annum equal to 4.20% subject to adjustment if the index rate as defined in the Term Loan Credit Agreement is greater than 4.20%. Interest is payable monthly in arrears commencing in January 2022. Thereafter, outstanding principal and accrued interest are due and payable in monthly installments of $40,000, commencing in January 2023 and continuing until November 2028, with the final remaining balance of unpaid principal and interest due and payable in December 2028. Trinity Capital Equipment Loan On June 27, 2025, AST LLC and certain other subsidiaries of the Company (together with AST LLC, the “AST Companies”) entered into a Master Equipment Financing Agreement (the “MEFA”) with Trinity Capital, Inc. (“Trinity”), as agent (the “Agent”) and lender, and the other lenders party (the “Lenders”), providing for a conditional commitment to provide financing of up to $100.0 million (“Trinity Capital Equipment Loan”). In 2025, the AST Companies, the Agent and the Lenders executed four five-year Equipment Financing Schedules (“Schedules”) to the MEFA (together with the Schedules, the “Agreements”) borrowing a total of $50.5 million. The borrowings carry an aggregate monthly payment of approximately $1.1 million and an end of term payment of 9% of the drawn amounts. The Company received proceeds of approximately $49.1 million, net of debt issuance costs of approximately $0.1 million, commitment fee of approximately $0.8 million and other finance charges of approximately $0.5 million. The Company has the option to prepay all or part of the outstanding principal balances under each Schedule. Any repayment of principal prior to the end of the five-year term will be subject to a prepayment fee equal to 3% to 5% of the drawn amounts, depending on the timing of the prepayment. The remaining amount of up to $49.5 million may be funded in one or more draws on or before June 30, 2027, subject to the satisfaction of various conditions. The AST Companies’ obligations under the Agreements are secured by certain of the AST Companies’ real property fixtures and equipment. The MEFA contains customary affirmative and negative covenants. The MEFA also contains certain customary events of default that, if they occur, will be deemed to occur under all Schedules. Late charges and a default rate may apply if amounts are paid late or there is another default under the Agreements. The MEFA also requires that all or a portion of the amounts under a Schedule be paid if there is a total loss with respect to the collateral. UBS Bridge Financing Loan On October 31, 2025, BackstopCo, LLC, a subsidiary of AST LLC (“BackstopCo”), entered into a loan agreement with UBS AG, Stamford Branch, as lender (the “UBS Loan Agreement”). The UBS Loan Agreement provides for a cash collateralized term loan facility (the “UBS Loan Facility”) in an aggregate principal amount of $420.0 million. The loan under the UBS Loan Facility (“UBS Bridge Financing Loan”) bears interest at a floating rate equal to Term SOFR plus 2.0% per annum and matures on the earlier of (a) October 31, 2028 and (b) the date on which the UBS Loan Facility shall be terminated or accelerated as provided in the UBS Loan Agreement. The loan under the UBS Loan Facility can be prepaid in whole or in part, without penalty or premium, subject to payment of any applicable breakage costs. The UBS Loan Facility is secured by a first-priority lien on substantially all of BackstopCo’s assets. The Company is not liable as a borrower or guarantor or otherwise for any payments owing in connection with the UBS Loan Facility. AST LLC will act as a limited guarantor under the UBS Loan Facility solely upon the occurrence of certain “bad boy” actions adverse to the lender by AST LLC or its affiliates, and the lender’s recourse to the assets of AST LLC is limited to AST LLC’s equity interests in BackstopCo. In addition, the affirmative and negative covenants contained in the UBS Loan Agreement (as described further below), apply to BackstopCo and/or AST LLC, as applicable. The UBS Loan Agreement includes customary affirmative and negative covenants, including restrictions on additional indebtedness, liens, investments, asset dispositions, mergers, affiliate transactions, and dividends, as well as requirements relating to use of proceeds and compliance with specified agreements, among other covenants as more fully described in the UBS Loan Agreement. Further, at all times following the UBS Loan Facility Closing Date until the maturity or termination of the UBS Loan Facility, BackstopCo is required to maintain cash or cash equivalents on deposit or credited to its collateral account in an amount equal to (or in excess of) 102.0% of the outstanding principal amount of the loan under the UBS Loan Facility. The UBS Loan Agreement also contains customary events of default (subject to grace periods, where applicable), including, among others, failure to pay principal or interest, cross-defaults to other agreements, breaches of representations and warranties, covenant defaults, the occurrence of a change in control and certain bankruptcy and insolvency events.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A Reference 2: http://www.xbrl.org/2003/role/disclosureRef 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