SilverBox V Launches $200M IPO, Eyes SPAC Deal Amid Dilution Concerns

TL;DR

**Avoid SBXE-WT; the sponsor's cheap founder shares and potential conflicts of interest make this SPAC a high-risk bet for public shareholders.**

AI Summary

SilverBox Corp V (SBXE-WT) filed an S-1/A on September 22, 2025, for an initial public offering of 20,000,000 units at $10.00 per unit, aiming to raise $200,000,000. Each unit comprises one Class A ordinary share and one-third of one redeemable warrant, with each whole warrant exercisable at $11.50 per share. The company is a blank check company, or SPAC, with no specific business combination target identified yet. The sponsor, SilverBox Sponsor V LLC, acquired 5,750,000 founder shares for a nominal price of $25,000, or approximately $0.004 per share, which will result in immediate and substantial dilution for public shareholders. An additional $6,250,000 is allocated for underwriting discounts and commissions, with $6,000,000 deferred until a business combination. The company will deposit $200,000,000 into a trust account, or $230,000,000 if the over-allotment option is fully exercised. The sponsor will also purchase 195,000 private placement units for $1,950,000. The company has 24 months to complete an initial business combination, or public shares will be redeemed at a per-share price equal to the trust account's value.

Why It Matters

This S-1/A filing signals SilverBox Corp V's entry into the SPAC market, aiming to raise $200 million for a future business combination. For investors, the significant dilution from the sponsor's nominal founder share purchase ($0.004 per share) presents a material risk, potentially eroding value even if a deal is struck. Employees of potential target companies face uncertainty regarding future leadership and strategic direction. The broader market will watch to see if SilverBox V can secure a compelling target in a competitive SPAC landscape, especially given the explicit conflict of interest with SilverBox Corp IV's recent business combination announcement with Parataxis Holdings.

Risk Assessment

Risk Level: high — The risk level is high due to the substantial dilution from the sponsor's founder shares, purchased at approximately $0.004 per share, compared to the public offering price of $10.00 per unit. This creates a significant conflict of interest, as the sponsor stands to profit substantially even if public shareholders experience losses. Furthermore, the filing explicitly mentions a conflict of interest with SilverBox Corp IV, another SPAC managed by the same team, which recently announced a business combination with Parataxis Holdings, indicating potential competition for target businesses.

Analyst Insight

Investors should exercise extreme caution and thoroughly evaluate the significant dilution and potential conflicts of interest before considering an investment in SBXE-WT. Given the sponsor's low cost basis and the explicit mention of conflicts, it would be prudent to wait for a definitive business combination target and assess its terms carefully, rather than investing in the blind pool.

Financial Highlights

debt To Equity

N/A

revenue

N/A

operating Margin

N/A

total Assets

$200,000,000

total Debt

N/A

net Income

N/A

eps

N/A

gross Margin

N/A

cash Position

$200,000,000

revenue Growth

N/A

Key Numbers

• $200,000,000 — Gross proceeds from IPO (Targeted amount to be raised from the initial public offering of 20,000,000 units at $10.00 each.)
• 20,000,000 — Units offered (Number of units being offered in the initial public offering.)
• $10.00 — Price per unit (Offering price for each unit in the initial public offering.)
• $0.004 — Sponsor's founder share cost (Approximate per-share price paid by SilverBox Sponsor V LLC for 5,750,000 founder shares, highlighting significant dilution.)
• $25,000 — Total cost of founder shares (Aggregate purchase price paid by the sponsor for 5,750,000 founder shares.)
• $6,250,000 — Underwriting discounts and commissions (Total amount allocated for underwriting, including $6,000,000 deferred.)
• 24 months — Time to complete business combination (Period SilverBox Corp V has to consummate an initial business combination before public shares are redeemed.)
• $11.50 — Warrant exercise price (Price at which each whole warrant entitles the holder to purchase one Class A ordinary share.)
• 195,000 — Private placement units (Number of units SilverBox Sponsor V LLC will purchase in a private placement.)
• $1,950,000 — Total private placement cost (Aggregate cost for the sponsor's purchase of private placement units.)

Key Players & Entities

• SilverBox Corp V (company) — Registrant for the S-1/A filing
• SilverBox Sponsor V LLC (company) — Sponsor of SilverBox Corp V
• Stephen Kadenacy (person) — Chief Executive Officer of SilverBox Corp V
• Santander (company) — Underwriter and advisory services provider
• Continental Stock Transfer & Trust Company (company) — Trustee for the trust account
• New York Stock Exchange (regulator) — Intended listing venue for units, Class A ordinary shares, and warrants
• United States Securities and Exchange Commission (regulator) — Regulatory body for the S-1/A filing
• SilverBox Corp IV (company) — Related SPAC with a recently announced business combination
• Parataxis Holdings (company) — Target of SilverBox Corp IV's business combination
• Jonathan Ko, Esq. (person) — Legal counsel from Paul Hastings LLP

FAQ

Risk Factors

• Dilution from Sponsor Shares [high — financial]: The sponsor acquired 5,750,000 founder shares for $25,000, or approximately $0.004 per share. This low cost basis for a significant portion of the company's equity will result in substantial dilution for public shareholders upon the completion of the IPO.
• Deferred Underwriting Commissions [medium — financial]: A significant portion of the underwriting commissions, $6,000,000 (or up to $6,900,000 if the over-allotment is fully exercised), is deferred and contingent upon the completion of a business combination. This creates a financial incentive for the underwriter to ensure a combination occurs, but also represents a future cash outflow.
• Limited Time for Business Combination [high — operational]: The company has a strict 24-month timeframe to identify and complete an initial business combination. Failure to do so will result in the redemption of public shares at the trust account value, potentially leading to a loss for public investors.
• Lack of Target Identification [high — market]: As a blank check company, SilverBox Corp V has not identified any specific business combination target and has not engaged in substantive discussions. This lack of a defined strategy introduces significant uncertainty regarding the future business and its potential success.
• Trust Account Dependency [medium — financial]: The majority of the IPO proceeds, $200,000,000 (or $230,000,000 with over-allotment), will be placed in a trust account. The value of public shares is directly tied to the performance and management of this trust, and redemptions are based on its value.
• Warrant Exercise Price and Dilution [medium — financial]: The redeemable warrants are exercisable at $11.50 per share. If a significant number of warrants are exercised, this will lead to further dilution of Class A ordinary shares, impacting the value for existing shareholders.
• SPAC Regulatory Scrutiny [medium — regulatory]: SPACs are subject to evolving regulatory scrutiny. Changes in regulations or interpretations by bodies like the SEC could impact the structure, operations, or the feasibility of business combinations, potentially affecting investor protections and company valuations.
• Sponsor Private Placement Units [low — financial]: The sponsor's purchase of 195,000 private placement units for $1,950,000 ($10.00 per unit) aligns their interests with the IPO price. However, the terms of these units, including potential dilution upon exercise of associated warrants, need careful consideration.

Industry Context

The Special Purpose Acquisition Company (SPAC) market has seen significant activity, driven by companies seeking an alternative to traditional IPOs for accessing public markets. However, the SPAC landscape is also characterized by increased regulatory scrutiny and a need for sponsors to identify viable targets within strict timelines. Competition among SPACs for attractive acquisition targets is intense, and the success of a SPAC is heavily dependent on the sponsor's expertise in deal sourcing and execution.

Regulatory Implications

As a blank check company, SilverBox Corp V is subject to the regulations governing SPACs, including disclosure requirements under the Securities Act of 1933 and the Securities Exchange Act of 1934. The SEC has increased its focus on SPACs, particularly concerning disclosures, sponsor compensation, and potential conflicts of interest, which could lead to stricter compliance burdens or changes in regulatory interpretations.

What Investors Should Do

1. Review Sponsor Dilution
2. Assess Business Combination Strategy
3. Analyze Warrant Terms
4. Monitor Trust Account Performance
5. Understand Redemption Rights

Key Dates

• 2025-09-22: Filing of S-1/A — Indicates the company's intent to proceed with an IPO and provides detailed information about its structure, offering, and risks.
• N/A: IPO Closing — The date when the offering is completed, proceeds are deposited into the trust account, and the 24-month clock for a business combination begins.
• N/A: Warrant Exercise Date — The date, 30 days after the business combination, when holders can exercise their warrants, potentially leading to further dilution.
• N/A: Warrant Expiration Date — Five years after the business combination, after which unexercised warrants expire, impacting potential future share counts.
• N/A: Business Combination Deadline — The 24-month deadline to complete a business combination, after which public shares will be redeemed if no combination is achieved.
• N/A: Separate Trading of Shares and Warrants — Expected on the 52nd day after the prospectus date, allowing investors to trade the components of the units separately.

Glossary

Blank Check Company

A shell corporation that is set up to raise capital through an IPO for the purpose of acquiring an existing company. Also known as a Special Purpose Acquisition Company (SPAC). (SilverBox Corp V is structured as a blank check company, meaning it has no operating business and its primary purpose is to find and merge with another company.)

Units

A security that combines two or more different types of securities, typically shares and warrants, offered together as a single package. (Each unit in this offering consists of one Class A ordinary share and one-third of a redeemable warrant, sold at $10.00 per unit.)

Redeemable Warrant

A financial instrument that gives the holder the right, but not the obligation, to purchase a company's stock at a specified price (exercise price) within a certain timeframe. (These warrants are exercisable at $11.50 per share and will become exercisable 30 days after the business combination.)

Founder Shares

Shares of stock issued to the founders or sponsors of a company, often at a nominal price, before the company goes public. (The sponsor acquired 5,750,000 founder shares at a very low cost, which is a significant source of potential dilution for public investors.)

Trust Account

An account established by a SPAC to hold the proceeds from its IPO. These funds are typically invested in low-risk securities and are used to fund the business combination or returned to shareholders upon liquidation. (The $200,000,000 raised in the IPO will be deposited into a trust account, forming the basis for share redemptions.)

Deferred Underwriting Commissions

A portion of the underwriting fees that is not paid at the closing of the IPO but is contingent upon the completion of a future event, such as a business combination. ($6,000,000 of the underwriting fees are deferred and will only be paid upon the successful completion of a business combination.)

Business Combination

The merger, acquisition, share exchange, or similar transaction through which a SPAC combines with an operating company. (SilverBox Corp V has 24 months to complete such a transaction; failure to do so triggers liquidation.)

Emerging Growth Company

A company that has total annual gross revenues of less than $1.235 billion (as of 2023) and is eligible for certain reduced reporting requirements under the JOBS Act. (SilverBox Corp V qualifies as an emerging growth company, allowing it to benefit from scaled disclosure requirements.)

Year-Over-Year Comparison

This is the initial S-1/A filing for SilverBox Corp V, therefore, there are no prior filings to compare financial metrics against. Key figures such as revenue, net income, and margins are not applicable at this pre-IPO stage. The filing primarily outlines the proposed offering structure, the risks associated with blank check companies, and the terms of the securities being offered.

Key Financial Figures

• $200,000,000 — BER 22, 2025 PRELIMINARY PROSPECTUS $200,000,000 SilverBox Corp V 20,000,000 Units
• $10.00 — ies. Each unit has an offering price of $10.00 and consists of one Class A ordinary sh
• $11.50 — ne Class A ordinary share at a price of $11.50 per share, subject to adjustment as des
• $100,000 — interest (less taxes payable and up to $100,000 of interest to pay dissolution expenses
• $0.0125 — 9.6875 $ 193,750,000 (1) Includes $0.0125 per unit on all units sold other than u
• $250,000 — he underwriter's over-allotment option ($250,000 in the aggregate) that shall be paid up
• $0.30 — ent option is exercised. Also, includes $0.30 per unit on all units sold (up to $6,00
• $6,000,000 — $0.30 per unit on all units sold (up to $6,000,000 in the aggregate or up to $6,900,000 in
• $6,900,000 — to $6,000,000 in the aggregate or up to $6,900,000 in the aggregate if the underwriter's o
• $200 m — ent units described in this prospectus, $200 million, or $230 million if the underwrit
• $230 million — ed in this prospectus, $200 million, or $230 million if the underwriter's option to purchase
• $25,000 — sed) for an aggregate purchase price of $25,000, or approximately $0.004 per share. The
• $0.004 — hase price of $25,000, or approximately $0.004 per share. The Class B ordinary shares
• $1,950,000 — ercised) at a price of $10.00 per unit ($1,950,000 in the aggregate) in a private placemen
• $10,000 — we will pay an affiliate of our sponsor $10,000 per month for office space, administrat

Filing Documents

• none-20250922xs1a.htm (S-1/A) — 3125KB
• none-20250922xex1d1.htm (EX-1.1) — 260KB
• none-20250922xex4d4.htm (EX-4.4) — 183KB
• none-20250922xex4d5.htm (EX-4.5) — 159KB
• none-20250922xex10d1.htm (EX-10.1) — 82KB
• none-20250922xex10d3.htm (EX-10.3) — 112KB
• none-20250922xex10d4.htm (EX-10.4) — 137KB
• none-20250922xex10d6.htm (EX-10.6) — 59KB
• none-20250922xex10d7.htm (EX-10.7) — 112KB
• none-20250922xex10d8.htm (EX-10.8) — 15KB
• none-20250922xex14.htm (EX-14) — 55KB
• none-20250922xex23d1.htm (EX-23.1) — 3KB
• none-20250922xex99d1.htm (EX-99.1) — 47KB
• none-20250922xex99d2.htm (EX-99.2) — 29KB
• none-20250922xex99d3.htm (EX-99.3) — 32KB
• none-20250922xex99d4.htm (EX-99.4) — 3KB
• none-20250922xex99d5.htm (EX-99.5) — 3KB
• 0001104659-25-092178.txt ( ) — 7132KB
• none-20250922.xsd (EX-101.SCH) — 7KB
• none-20250922_def.xml (EX-101.DEF) — 15KB
• none-20250922_lab.xml (EX-101.LAB) — 20KB
• none-20250922_pre.xml (EX-101.PRE) — 25KB
• none-20250922xs1a_htm.xml (XML) — 798KB

From the Filing

SilverBox Corp V Table of Contents As filed with the United States Securities and Exchange Commission on September 22, 2025 under the Securities Act of 1933, as amended. Registration No. 333-289783 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 SilverBox Corp V (Exact name of registrant as specified in its charter) Cayman Islands 6770 N/A (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) 8701 Bee Cave Road East Building, Suite 310 Austin, TX 78746 (512) 575-3637 (Address, including zip code, and telephone number, including area code, of registrant's principal executive offices) Stephen Kadenacy Chief Executive Officer c/o SilverBox Corp V 8701 Bee Cave Road East Building, Suite 310 Austin, TX 78746 (512) 575-3637 (Name, address, including zip code, and telephone number, including area code, of agent for service) Copies to: Jonathan Ko, Esq. Paul Hastings LLP 515 South Flower Street, 25 th Floor Los Angeles, CA 90071 (213) 683-6000 Michael Johns Michael Lockwood Maples and Calder (Cayman) LLP P.O. Box 309, Ugland House Grand Cayman KY1-1104 Cayman Islands Tel: (345) 949-8066 Ilir Mujalovic, Esq. Allen Overy Shearman Sterling US LLP 599 Lexington Avenue New York, NY 10022 (212) 848-4000 William B. Nelson, Esq. Allen Overy Shearman Sterling US LLP 800 Capitol Street, Suite 2200 Houston, Texas 77002 (713) 354-4900 Approximate date of commencement of proposed sale to the public: As soon as practicable after the effective date of this registration statement. If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box. If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act. Large accelerated filer Accelerated filer Non-accelerated filer Smaller reporting company Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. The Registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine. The information contained in this preliminary prospectus is not complete and may be changed. No securities may be sold until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell these securities, and it is not soliciting an offer to buy these securities, in any jurisdiction where the offer or sale is not permitted. Table of Contents PRELIMINARY PROSPECTUS $200,000,000 SilverBox Corp V 20,000,000 Units SilverBox Corp V is a newly incorporated blank check company for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses, which we refer to throughout this prospectus as our initial business combination. We have not selected any specific business combination target and we have not, nor has anyone on our behalf, engaged in any substantive discussions, directly or ind

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