Organization and Business Operation	7 Months Ended
Dec. 31, 2025
Organization and Business Operation
Organization and Business Operation	Note 1 — Organization and Business Operation SilverBox Corp V (the “Company”) is a blank check company incorporated as a Cayman Islands exempted company on May 29, 2025. The Company was incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses (the “Business Combination”). The Company has not selected any specific Business Combination target and the Company has not, nor has anyone on its behalf, initiated any substantive discussions, directly or indirectly, with any Business Combination target. As of December 31, 2025, the Company had not commenced any operations. All activity for the period from May 29, 2025 (inception) through December 31, 2025 relates to the Company’s formation and the Initial Public Offering described below. The Company will not generate any operating revenues until after the completion of its initial Business Combination, at the earliest. The Company generates non-operating income in the form of interest income on cash and cash equivalents from the proceeds derived from the Initial Public Offering (as defined below). The Company’s sponsor is SilverBox Sponsor V LLC, a Delaware limited liability company (the “Sponsor”). The registration statement for the Company’s Initial Public Offering was declared effective on December 2, 2025. On December 4, 2025, the Company consummated the Initial Public Offering of 27,600,000 units at $10.00 per unit (the “Units”), which is discussed in Note 3 (the “Initial Public Offering”), which includes the full exercise of the underwriters’ over-allotment option of 3,600,000 Units, generating gross proceeds of $276,000,000. Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 195,000 units (the “Private Placement Units”) to the Sponsor, at a price of $10.00 per Private Placement Unit, or $1,950,000 in the aggregate. Transaction costs amounted to $9,240,771, consisting of $225,000 of cash underwriting fee (net of $25,000 underwriters’ reimbursement), $8,280,000 of deferred underwriting fee, and $735,771 of other offering costs. The Company must complete one or more initial Business Combinations having an aggregate fair market value of at least 80% of the value of the Trust Account (as defined below) (excluding any deferred underwriting commissions and taxes payable on the interest earned on the Trust Account) at the time of the signing a definitive agreement in connection with the initial Business Combination. However, the Company will only complete a Business Combination if the post-transaction company owns or acquires 50% or more of the outstanding voting securities of the target or otherwise acquires a controlling interest in the target business sufficient for it not to be required to register as an investment company under the Investment Company Act 1940, as amended (the “Investment Company Act”). There is no assurance that the Company will be able to complete a Business Combination successfully. Upon the closing of the Initial Public Offering on December 4, 2025, an amount of $276,000,000 ($10.00 per Unit) from the net proceeds of the sale of the Units, and a portion of the proceeds from the sale of the Private Placement Units, was placed in a trust account (the “Trust Account”) and will be (i) invested only in U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act, having a maturity of 185 days or less or in money market funds meeting certain conditions under Rule 2a-7 promulgated under the Investment Company Act which invest only in direct U.S. government treasury obligations or (ii) deposited in an interest bearing demand deposit account at a U.S. chartered commercial bank with consolidated assets of $100 billion or more. Except with respect to interest earned on the funds held in the Trust Account that may be released to the Company as described below, the funds held in the Trust Account will not be released from the Trust Account until the earliest to occur of (1) the Company’s completion of an initial Business Combination; (2) the redemption of any Public Shares properly submitted in connection with a shareholder vote to amend the Company’s amended and restated memorandum and articles of association (A) to modify the substance or timing of the Company’s obligation to provide for the redemption of the Company’s Public Shares in connection with the initial Business Combination or to redeem 100% of the Public Shares if the Company does not consummated the initial Business Combination within the Completion Window (as defined below) from the closing of the Initial Public Offering or (B) with respect to any other provision relating to shareholders’ rights or pre-initial Business Combination activity; and (3) the redemption of all of the Company’s Public Shares if the Company has not completed an initial Business Combination within the Completion Window, subject to applicable law. The proceeds deposited in the Trust Account could become subject to the claims of the creditors, if any, which could have priority over the claims of the Company’s public shareholders. The Company will provide its public shareholders with the opportunity to redeem, regardless of whether they abstain, vote for, or vote against, its initial Business Combination, all or a portion of their Public Shares upon the completion of the initial Business Combination either (1) in connection with a shareholder meeting called to approve the Business Combination or (2) by means of a tender offer. The decision as to whether the Company will seek shareholder approval of a proposed Business Combination or conduct a tender offer will be made by the Company, solely in its discretion, and will be based on a variety of factors such as the timing of the transaction and whether the terms of the transaction would require the Company to seek shareholder approval under applicable law or stock exchange listing requirement. The shareholders will be entitled to redeem all or a portion of the Public Shares upon the completion of the initial Business Combination at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account as of two business days prior to the consummation of the initial Business Combination, including interest, divided by the number of the outstanding Public Shares, subject to the limitations described herein. The amount in the Trust Account is initially anticipated to be $10.00 per Public Share. The ordinary shares subject to redemption are recorded at a redemption value and classified as temporary equity upon the completion of the Initial Public Offering, in accordance with Accounting Standards Codification (“ASC”) Topic 480, “Distinguishing Liabilities from Equity.” In such case, the Company will proceed with a Business Combination if the Company seeks shareholder approval and a majority of the issued and outstanding shares voted are voted in favor of the Business Combination. The Company will have only 24 months from the closing of the Initial Public Offering to complete the initial Business Combination (the “Completion Window”). However, if the Company has not completed the initial Business Combination within the Completion Window or the Company does not otherwise seek shareholder approval to amend the amended and restated memorandum and articles of association to further extend the time to complete the initial Business Combination, the Company will (1) cease all operations except for the purpose of winding up; (2) as promptly as reasonably possible but no more than ten business days thereafter, subject to lawfully available funds therefor, redeem the Public Shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest, divided by the number of the outstanding Public Shares, which redemption will completely extinguish public shareholders’ rights as shareholders (including the right to receive further liquidating distributions, if any); and (3) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining shareholders and the Company’s board of directors, dissolve and liquidate, subject in each case to the Company’s obligations under Cayman Islands law to provide for claims of creditors and the requirements of other applicable law. The Sponsor, directors and officers entered into a letter agreement with the Company, pursuant to which they agreed to (1) waive their redemption rights with respect to any Founder Shares (as defined in Note 4) and any Public Shares held by them in connection with the completion of the initial Business Combination; (2) waive their redemption rights with respect to any Founder Shares and Public Shares held by them in connection with a shareholder vote to approve an amendment to the Company’s amended and restated memorandum and articles of association (A) to modify the substance or timing of the Company’s obligation to provide for the redemption of the Company’s Public Shares in connection with the initial Business Combination or to redeem 100% of the Public Shares if the Company does not consummated its initial Business Combination within the Completion Window or (B) with respect to any other provision relating to shareholders’ rights or pre-initial Business Combination activity; (3) waive their rights to liquidating distributions from the Trust Account with respect to any Founder Shares and private placement shares they hold if the Company fails to complete its initial Business Combination within the Completion Window (although they will be entitled to liquidating distributions from the Trust Account with respect to any Public Shares they hold if the Company fails to complete the initial Business Combination within the Completion Window); and (4) vote their Founder Shares and any Public Shares purchased during or after the Initial Public Offering (including in open market and privately negotiated transactions) in favor of the initial Business Combination (except that any Public Shares such parties may purchase in compliance with the requirements of Rule 14e-5 under the Securities Exchange Act of 1934 would not be voted in favor of approving the Business Combination transaction. The Sponsor agreed that it will be liable to the Company if and to the extent any claims by a third party (other than the Company’s independent registered public accounting firm) for services rendered or products sold to the Company, or a prospective target business with which the Company has entered into a written letter of intent, confidentiality or similar agreement or Business Combination agreement, reduce the amount of funds in the Trust Account to below (1) $10.00 per Public Share or (2) the actual amount per share held in the Trust Account as of the date of the liquidation of the Trust Account if less than $10.00 per share due to reductions in the value of the trust assets, less taxes payable, provided that such liability will not apply to any claims by a third party or prospective target business who executed a waiver of any and all rights to the monies held in the Trust Account (whether or not such waiver is enforceable) nor will it apply to any claims under the Company’s indemnity of the underwriters of the Initial Public Offering against certain liabilities, including liabilities under the Securities Act (as defined in Note 2). However, the Company has not asked the Sponsor to reserve for such indemnification obligations, nor has the Company independently verified whether the Sponsor has sufficient funds to satisfy its indemnity obligations and the Company believes that the Sponsor’s only assets are securities of the Company. Therefore, the Company cannot assure that the Sponsor would be able to satisfy those obligations. None of the Company’s officers or directors will indemnify the Company for claims by third parties including, without limitation, claims by vendors and prospective target businesses. Liquidity, Capital Resources and Going Concern As of December 31, 2025, the Company had cash of $812,892 and working capital of $867,844. In order to finance transaction costs in connection with a Business Combination, the Sponsor or an affiliate of the Sponsor or certain of the Company’s directors and officers may, but are not obligated to, loan the Company funds as may be required (“Working Capital Loans”). If the Company completes a Business Combination, the Company would repay the Working Capital Loans out of the proceeds of the Trust Account released to the Company. Otherwise, the Working Capital Loans would be repaid only out of funds held outside the Trust Account. In the event that a Business Combination does not close, the Company may use a portion of proceeds held outside the Trust Account to repay the Working Capital Loans, but no proceeds held in the Trust Account would be used to repay the Working Capital Loans. Except for the foregoing, the terms of such Working Capital Loans, if any, have not been determined and no written agreements exist with respect to such loans. The Working Capital Loans would either be repaid upon consummation of a Business Combination, without interest, or, at the lender’s discretion, up to $2,500,000 of such Working Capital Loans may be convertible into units of the post-Business Combination entity at a price of $10.00 per units. The units and the underlying securities would be identical to the Private Placement Units. As of December 31, 2025, there were no amounts outstanding under the Working Capital Loans. In connection with the Company’s assessment of going concern considerations in accordance with ASC 205-40, “Presentation of Financial Statements – Going Concern,” the Company may need to raise additional capital through loans or additional investments from its Sponsor, shareholders, officers, directors, or third parties. The Company’s officers, directors and Sponsor may, but are not obligated to, loan the Company funds, from time to time or at any time, in whatever amount they deem reasonable in their sole discretion, to meet the Company’s working capital needs. Accordingly, the Company may not be able to obtain additional financing. If the Company is unable to raise additional capital, it may be required to take additional measures to conserve liquidity, which could include, but not necessarily be limited to, curtailing operations, suspending the pursuit of a potential transaction, and reducing overhead expenses. The Company cannot provide any assurance that new financing will be available to it on commercially acceptable terms, if at all. The Company’s liquidity condition raises substantial doubt about the Company’s ability to continue as a going concern. Management plans to address this uncertainty through a Business Combination. However, there can be no assurance that the Company will be able to consummate any Business Combination by the end of the Combination Period.

Organization and Business Operation

7 Months Ended

Dec. 31, 2025

Note 1 — Organization and Business Operation

SilverBox Corp V (the “Company”) is a blank check company incorporated as a Cayman Islands exempted company on May 29, 2025. The Company was incorporated for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses (the “Business Combination”). The Company has not selected any specific Business Combination target and the Company has not, nor has anyone on its behalf, initiated any substantive discussions, directly or indirectly, with any Business Combination target.

As of December 31, 2025, the Company had not commenced any operations. All activity for the period from May 29, 2025 (inception) through December 31, 2025 relates to the Company’s formation and the Initial Public Offering described below. The Company will not generate any operating revenues until after the completion of its initial Business Combination, at the earliest. The Company generates non-operating income in the form of interest income on cash and cash equivalents from the proceeds derived from the Initial Public Offering (as defined below).

The Company’s sponsor is SilverBox Sponsor V LLC, a Delaware limited liability company (the “Sponsor”). The registration statement for the Company’s Initial Public Offering was declared effective on December 2, 2025. On December 4, 2025, the Company consummated the Initial Public Offering of 27,600,000 units at $10.00 per unit (the “Units”), which is discussed in Note 3 (the “Initial Public Offering”), which includes the full exercise of the underwriters’ over-allotment option of 3,600,000 Units, generating gross proceeds of $276,000,000. Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 195,000 units (the “Private Placement Units”) to the Sponsor, at a price of $10.00 per Private Placement Unit, or $1,950,000 in the aggregate.

Transaction costs amounted to $9,240,771, consisting of $225,000 of cash underwriting fee (net of $25,000 underwriters’ reimbursement), $8,280,000 of deferred underwriting fee, and $735,771 of other offering costs.

The Company must complete one or more initial Business Combinations having an aggregate fair market value of at least 80% of the value of the Trust Account (as defined below) (excluding any deferred underwriting commissions and taxes payable on the interest earned on the Trust Account) at the time of the signing a definitive agreement in connection with the initial Business Combination. However, the Company will only complete a Business Combination if the post-transaction company owns or acquires 50% or more of the outstanding voting securities of the target or otherwise acquires a controlling interest in the target business sufficient for it not to be required to register as an investment company under the Investment Company Act 1940, as amended (the “Investment Company Act”). There is no assurance that the Company will be able to complete a Business Combination successfully.

Upon the closing of the Initial Public Offering on December 4, 2025, an amount of $276,000,000 ($10.00 per Unit) from the net proceeds of the sale of the Units, and a portion of the proceeds from the sale of the Private Placement Units, was placed in a trust account (the “Trust Account”) and will be (i) invested only in U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act, having a maturity of 185 days or less or in money market funds meeting certain conditions under Rule 2a-7 promulgated under the Investment Company Act which invest only in direct U.S. government treasury obligations or (ii) deposited in an interest bearing demand deposit account at a U.S. chartered commercial bank with consolidated assets of $100 billion or more. Except with respect to interest earned on the funds held in the Trust Account that may be released to the Company as described below, the funds held in the Trust Account will not be released from the Trust Account until the earliest to occur of (1) the Company’s completion of an initial Business Combination; (2) the redemption of any Public Shares properly submitted in connection with a shareholder vote to amend the Company’s amended and restated memorandum and articles of association (A) to modify the substance or timing of the Company’s obligation to provide for the redemption of the Company’s Public Shares in connection with the initial Business Combination or to redeem 100% of the Public Shares if the Company does not consummated the initial Business Combination within the Completion Window (as defined below) from the closing of the Initial Public Offering or (B) with respect to any other provision relating to shareholders’ rights or pre-initial Business Combination activity; and (3) the redemption of all of the Company’s Public Shares if the Company has not completed an initial Business Combination within the Completion Window, subject to applicable law. The proceeds deposited in the Trust Account could become subject to the claims of the creditors, if any, which could have priority over the claims of the Company’s public shareholders.

The Company will provide its public shareholders with the opportunity to redeem, regardless of whether they abstain, vote for, or vote against, its initial Business Combination, all or a portion of their Public Shares upon the completion of the initial Business Combination either (1) in connection with a shareholder meeting called to approve the Business Combination or (2) by means of a tender offer. The decision as to whether the Company will seek shareholder approval of a proposed Business Combination or conduct a tender offer will be made by the Company, solely in its discretion, and will be based on a variety of factors such as the timing of the transaction and whether the terms of the transaction would require the Company to seek shareholder approval under applicable law or stock exchange listing requirement. The shareholders will be entitled to redeem all or a portion of the Public Shares upon the completion of the initial Business Combination at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account as of two business days prior to the consummation of the initial Business Combination, including interest, divided by the number of the outstanding Public Shares, subject to the limitations described herein. The amount in the Trust Account is initially anticipated to be $10.00 per Public Share.

The ordinary shares subject to redemption are recorded at a redemption value and classified as temporary equity upon the completion of the Initial Public Offering, in accordance with Accounting Standards Codification (“ASC”) Topic 480, “Distinguishing Liabilities from Equity.” In such case, the Company will proceed with a Business Combination if the Company seeks shareholder approval and a majority of the issued and outstanding shares voted are voted in favor of the Business Combination.

The Company will have only 24 months from the closing of the Initial Public Offering to complete the initial Business Combination (the “Completion Window”). However, if the Company has not completed the initial Business Combination within the Completion Window or the Company does not otherwise seek shareholder approval to amend the amended and restated memorandum and articles of association to further extend the time to complete the initial Business Combination, the Company will (1) cease all operations except for the purpose of winding up; (2) as promptly as reasonably possible but no more than ten business days thereafter, subject to lawfully available funds therefor, redeem the Public Shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest, divided by the number of the outstanding Public Shares, which redemption will completely extinguish public shareholders’ rights as shareholders (including the right to receive further liquidating distributions, if any); and (3) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining shareholders and the Company’s board of directors, dissolve and liquidate, subject in each case to the Company’s obligations under Cayman Islands law to provide for claims of creditors and the requirements of other applicable law.

The Sponsor, directors and officers entered into a letter agreement with the Company, pursuant to which they agreed to (1) waive their redemption rights with respect to any Founder Shares (as defined in Note 4) and any Public Shares held by them in connection with the completion of the initial Business Combination; (2) waive their redemption rights with respect to any Founder Shares and Public Shares held by them in connection with a shareholder vote to approve an amendment to the Company’s amended and restated memorandum and articles of association (A) to modify the substance or timing of the Company’s obligation to provide for the redemption of the Company’s Public Shares in connection with the initial Business Combination or to redeem 100% of the Public Shares if the Company does not consummated its initial Business Combination within the Completion Window or (B) with respect to any other provision relating to shareholders’ rights or pre-initial Business Combination activity; (3) waive their rights to liquidating distributions from the Trust Account with respect to any Founder Shares and private placement shares they hold if the Company fails to complete its initial Business Combination within the Completion Window (although they will be entitled to liquidating distributions from the Trust Account with respect to any Public Shares they hold if the Company fails to complete the initial Business Combination within the Completion Window); and (4) vote their Founder Shares and any Public Shares purchased during or after the Initial Public Offering (including in open market and privately negotiated transactions) in favor of the initial Business Combination (except that any Public Shares such parties may purchase in compliance with the requirements of Rule 14e-5 under the Securities Exchange Act of 1934 would not be voted in favor of approving the Business Combination transaction.

The Sponsor agreed that it will be liable to the Company if and to the extent any claims by a third party (other than the Company’s independent registered public accounting firm) for services rendered or products sold to the Company, or a prospective target business with which the Company has entered into a written letter of intent, confidentiality or similar agreement or Business Combination agreement, reduce the amount of funds in the Trust Account to below (1) $10.00 per Public Share or (2) the actual amount per share held in the Trust Account as of the date of the liquidation of the Trust Account if less than $10.00 per share due to reductions in the value of the trust assets, less taxes payable, provided that such liability will not apply to any claims by a third party or prospective target business who executed a waiver of any and all rights to the monies held in the Trust Account (whether or not such waiver is enforceable) nor will it apply to any claims under the Company’s indemnity of the underwriters of the Initial Public Offering against certain liabilities, including liabilities under the Securities Act (as defined in Note 2). However, the Company has not asked the Sponsor

to reserve for such indemnification obligations, nor has the Company independently verified whether the Sponsor has sufficient funds to satisfy its indemnity obligations and the Company believes that the Sponsor’s only assets are securities of the Company. Therefore, the Company cannot assure that the Sponsor would be able to satisfy those obligations. None of the Company’s officers or directors will indemnify the Company for claims by third parties including, without limitation, claims by vendors and prospective target businesses.

Liquidity, Capital Resources and Going Concern

As of December 31, 2025, the Company had cash of $812,892 and working capital of $867,844.

In order to finance transaction costs in connection with a Business Combination, the Sponsor or an affiliate of the Sponsor or certain of the Company’s directors and officers may, but are not obligated to, loan the Company funds as may be required (“Working Capital Loans”). If the Company completes a Business Combination, the Company would repay the Working Capital Loans out of the proceeds of the Trust Account released to the Company. Otherwise, the Working Capital Loans would be repaid only out of funds held outside the Trust Account. In the event that a Business Combination does not close, the Company may use a portion of proceeds held outside the Trust Account to repay the Working Capital Loans, but no proceeds held in the Trust Account would be used to repay the Working Capital Loans. Except for the foregoing, the terms of such Working Capital Loans, if any, have not been determined and no written agreements exist with respect to such loans. The Working Capital Loans would either be repaid upon consummation of a Business Combination, without interest, or, at the lender’s discretion, up to $2,500,000 of such Working Capital Loans may be convertible into units of the post-Business Combination entity at a price of $10.00 per units. The units and the underlying securities would be identical to the Private Placement Units. As of December 31, 2025, there were no amounts outstanding under the Working Capital Loans.

In connection with the Company’s assessment of going concern considerations in accordance with ASC 205-40, “Presentation of Financial Statements – Going Concern,” the Company may need to raise additional capital through loans or additional investments from its Sponsor, shareholders, officers, directors, or third parties. The Company’s officers, directors and Sponsor may, but are not obligated to, loan the Company funds, from time to time or at any time, in whatever amount they deem reasonable in their sole discretion, to meet the Company’s working capital needs. Accordingly, the Company may not be able to obtain additional financing. If the Company is unable to raise additional capital, it may be required to take additional measures to conserve liquidity, which could include, but not necessarily be limited to, curtailing operations, suspending the pursuit of a potential transaction, and reducing overhead expenses. The Company cannot provide any assurance that new financing will be available to it on commercially acceptable terms, if at all. The Company’s liquidity condition raises substantial doubt about the Company’s ability to continue as a going concern. Management plans to address this uncertainty through a Business Combination. However, there can be no assurance that the Company will be able to consummate any Business Combination by the end of the Combination Period.