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Boost Run and Willow Lane Announce Effectiveness of Registration Statement in Connection with Proposed Business Combination

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Boost Run (proposed NYSE: BRUN) and Willow Lane (Nasdaq: WLAC) announced that the SEC declared effective the Form S-4 for their proposed business combination.

An extraordinary general meeting for Willow Lane shareholders is set for April 30, 2026; the combined company is expected to list on Nasdaq under BRUN and warrants as BRUNW.

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Positive

  • SEC declared Form S-4 effective
  • Expected Nasdaq listing under BRUN/BRUNW
  • Extraordinary shareholder meeting set for April 30, 2026
  • Public currency and greater capital flexibility for Boost Run

Negative

  • Transaction requires Willow Lane shareholder approval on April 30, 2026
  • Closing is contingent on customary conditions; delay or failure could postpone listing

News Market Reaction – WLAC

-0.37% 4.3x vol
27 alerts
-0.37% News Effect
+6.3% Peak in 4 hr 12 min
-$755K Valuation Impact
$203.37M Market Cap
4.3x Rel. Volume

On the day this news was published, WLAC declined 0.37%, reflecting a mild negative market reaction. Argus tracked a peak move of +6.3% during that session. Our momentum scanner triggered 27 alerts that day, indicating elevated trading interest and price volatility. This price movement removed approximately $755K from the company's valuation, bringing the market cap to $203.37M at that time. Trading volume was very high at 4.3x the daily average, suggesting heavy selling pressure.

Data tracked by StockTitan Argus on the day of publication.

Key Figures

Pubco shares registered: 80,774,396 shares Pubco warrants registered: 11,470,722 warrants Installment note: $8,500,000 +5 more
8 metrics
Pubco shares registered 80,774,396 shares DEFM14A merger proxy for Boost Run business combination
Pubco warrants registered 11,470,722 warrants DEFM14A merger proxy for Boost Run business combination
Installment note $8,500,000 Consideration to Andrew Karos in transaction structure
Shares to Sellers 44,150,000 shares Equity consideration, valued at $441,500,000 at $10.00 per share
Trust account balance $133.77 million Public shareholders’ pro rata redemption base as of Record Date
Illustrative redemption value $10.57 per share Estimated per-share amount for public shareholder redemptions
Fluidstack contract $127 million over two years Boost Run commercial agreement announced Dec 15, 2025
Planned GPU deployment $250 million in Q1 2026 Latest‑generation GPUs expected to be deployed by Boost Run

Market Reality Check

Price: $17.85 Vol: Volume 105,668 is at 0.6x...
low vol
$17.85 Last Close
Volume Volume 105,668 is at 0.6x the 20-day average of 175,048, showing subdued trading into this update. low
Technical Shares at $10.68 are trading below the $11.34 200-day MA and about 29.69% under the 52-week high.

Peers on Argus

No peer stocks from the Blank Checks / Shell Companies group appeared in the mom...

No peer stocks from the Blank Checks / Shell Companies group appeared in the momentum scanner, suggesting this headline is being absorbed as a company-specific event rather than part of a wider sector move.

Historical Context

2 past events · Latest: Apr 06 (Positive)
Pattern 2 events
Date Event Sentiment Move Catalyst
Apr 06 Meeting rescheduled Positive +0.5% Extraordinary meeting moved to Apr 30, 2026 to await S-4 effectiveness.
Dec 15 AI growth update Positive +3.9% Boost Run expanded GPU, data center and financing ahead of merger.
Pattern Detected

Recent business-combination-related headlines have coincided with modestly positive price reactions, indicating the stock has tended to respond constructively to progress updates on the Boost Run deal.

Recent Company History

Over the past several months, Willow Lane’s news flow has centered on its proposed business combination with Boost Run. On Dec 15, 2025, a Boost Run ecosystem expansion update tied to the merger saw WLAC gain about 3.94%. On Apr 06, 2026, rescheduling the extraordinary general meeting to Apr 30, 2026 while awaiting S-4 effectiveness aligned with a smaller 0.52% rise. Today’s announcement that the S-4 has been declared effective continues this sequence of deal-progress milestones.

Market Pulse Summary

This announcement confirms SEC effectiveness of the Form S-4 and sets an Apr 30, 2026 extraordinary ...
Analysis

This announcement confirms SEC effectiveness of the Form S-4 and sets an Apr 30, 2026 extraordinary general meeting to approve the Boost Run business combination. Recent filings outline registration of 80,774,396 Pubco shares, 11,470,722 warrants, and an estimated trust value of $10.57 per redeemable share. Investors may focus on shareholder turnout, redemption levels, and how the merged entity deploys the planned $250 million in latest‑generation GPUs alongside key contracts such as the $127 million Fluidstack agreement.

Key Terms

registration statement on form s-4, business combination, class a common stock, warrants, +3 more
7 terms
registration statement on form s-4 regulatory
"the SEC has declared effective the Registration Statement on Form S-4"
A registration statement on Form S-4 is a formal filing with the U.S. Securities and Exchange Commission used when a company issues shares or other securities as part of a merger, acquisition, exchange offer or similar corporate deal. It bundles the transaction terms, financial statements, risk factors and shareholder vote materials so investors can assess the deal; think of it as a detailed prospectus or buyer’s packet that explains what you would own and how the deal could change your stake.
business combination financial
"in connection with the proposed business combination (the "Business Combination")"
A business combination happens when two or more companies join together to operate as one, like two friends merging their teams into a single group. This is important because it can change how companies grow, compete, and make money, often making them bigger and more powerful in the market.
class a common stock financial
"shares of Class A common stock and warrants on the Nasdaq Stock Market"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
warrants financial
"shares of Class A common stock and warrants on the Nasdaq Stock Market"
Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.
proxy statement regulatory
"A proxy statement containing the proposals to be presented at the extraordinary general meeting"
A proxy statement is a document companies send to shareholders ahead of a meeting that lays out the items up for a vote—like who will sit on the board, executive pay, and major corporate decisions—and provides background so shareholders can decide how to cast their votes or appoint someone to vote for them. Think of it as an agenda plus a ballot and briefing notes, important because the outcomes can change control, strategy, and value.
business combination agreement financial
"The Business Combination Agreement, dated as of September 15, 2025"
A business combination agreement is a detailed contract that lays out the terms for two companies to join together—covering price, how ownership will be split, the steps needed to close the deal, and what each side promises to do or avoid before closing. For investors it matters because the agreement determines potential changes in value, control, timing, and risk exposure—think of it like the playbook for a merger that shows who wins, who pays, and what could still derail the plan.
nasdaq financial
"expected listing of its shares of Class A common stock and warrants on the Nasdaq"
The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

AI-generated analysis. Not financial advice.

Extraordinary General Meeting of Willow Lane Shareholders to Approve Business Combination Scheduled for April 30, 2026

Upon Closing, Combined Company will be Named "Boost Run Inc." and is Expected to be Listed on Nasdaq

CHICAGO and NEW YORK, April 9, 2026 /PRNewswire/ -- Boost Run, LLC (the "Boost Run"), a rapidly growing provider of AI Cloud Infrastructure and high performance compute (HPC), and Willow Lane Acquisition Corp. ("Willow Lane") (Nasdaq: WLAC), a publicly-traded special purpose acquisition company, today announced that the Securities and Exchange Commission ("SEC") has declared effective the Registration Statement on Form S-4 (as amended, the "Registration Statement") in connection with the proposed business combination (the "Business Combination") entered into by Willow Lane and Boost Run on September 15, 2025.

This filing marks an important step as Boost Run Inc. ("Pubco"), the surviving public company after the closing of the Business Combination, nears the expected listing of its shares of Class A common stock and warrants on the Nasdaq Stock Market LLC ("Nasdaq") under the proposed symbols "BRUN" and "BRUNW," respectively.

"We are pleased to reach this important milestone, giving greater clarity to the timeline of our public listing. As we continue to rapidly expand our footprint in AI cloud infrastructure, the Business Combination gives us a public currency, further strengthens our balance sheet, gives us greater capital flexibility and reinforces our position as a trusted partner in the ecosystem," said Andrew Karos, Chief Executive Officer of Boost Run.

Luke Weil, Chief Executive Officer and Chairman of Willow Lane, commented: "Andrew and his team have built a business that is well-positioned within an industry supported by long-term secular trends, and Boost Run has demonstrated its ability to capitalize on this growing demand for AI cloud infrastructure. With the support of fellow shareholders at the upcoming general meeting, we believe the true potential of Boost Run can be realized."

Extraordinary General Meeting to Approve Business Combination

Willow Lane will hold an extraordinary general meeting of its shareholders at 10:00 a.m. ET on April 30, 2026, for Willow Lane shareholders of record as of March 12, 2026, to approve proposals presented to the shareholders at the extraordinary general meeting related to the Business Combination with Boost Run. A proxy statement containing the proposals to be presented at the extraordinary general meeting has been or will be filed with the SEC; copies of the definitive proxy statement will also be mailed to Willow Lane shareholders of record as of the record date.

Information about how to attend the extraordinary general meeting and vote is set forth in the proxy statement. The Business Combination Agreement, dated as of September 15, 2025 (as amended, the "Business Combination Agreement") contains certain closing conditions customary for transactions similar to the Business Combination, which have been satisfied or waived or which the parties expect to be satisfied or waived. The Business Combination is expected to close shortly after the extraordinary general meeting.

YOUR VOTE IS IMPORTANT. Willow Lane shareholders are urged to read carefully the proxy materials, including, among other things, the reasons for the unanimous recommendation by Willow Lane's board of directors that shareholders of record as of the record date vote "FOR" ALL PROPOSALS included in the proxy statement in advance of the extraordinary general meeting.

The extraordinary general meeting of Willow Lane shareholders will be held at the offices of Ellenoff Grossman & Schole LLP at 1345 Avenue of the Americas, 11th Floor, New York, NY 10105 and virtually over the Internet by means of a live audio webcast at https://www.cstproxy.com/willowspac/2026. Shareholders or their proxyholder will be able to attend and vote at the extraordinary general meeting by visiting https://www.cstproxy.com/willowspac/2026 and using a control number assigned by Continental Stock Transfer & Trust Company.

If you have questions about the proposals or if you need additional copies of the proxy statement or a proxy card, you should contact Willow Lane's proxy solicitor at: Sodali & Co., 430 Park Ave, 14th Floor, New York, NY 10022, Tel: (800) 662-9400 or (203) 658-9400 (banks and brokers can call collect), Email: WLAC@info.sodali.com

Willow Lane shareholders whose shares are held of record by a broker, bank, or other nominee should contact their broker, bank, or nominee to ensure that their shares are voted. To obtain timely delivery of copies of proxy materials, Willow Lane shareholders must request the materials no later than April 23, 2026.

Your vote FOR ALL proposals is important, no matter how many or how few shares you own.

About Boost Run

Boost Run is a leading provider of scalable cloud infrastructure purpose-built for enterprise AI and high-performance computing workloads. The platform delivers GPU compute, CPU nodes, managed Kubernetes orchestration, and shared storage through an intuitive management console and a robust API layer, enabling organizations to provision and scale resources across thousands of nodes in minutes. Organizations rely on Boost Run to power their most demanding AI workloads with the performance, security, and reliability their operations require. Boost Run maintains SOC 2 Type II, HIPAA, ISO 27001, and ISO 27701 certifications at the operator level, and partners with data center facilities that uphold equivalent security and compliance standards.

About Willow Lane

Willow Lane is a blank check company formed for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. Willow Lane's team has broad sector knowledge and brings a combination of operating, investing, financial and transactional experience. Willow Lane team has collectively identified and closed five previous SPAC business combinations, creating value for shareholders.

Additional Information and Where to Find It

Willow Lane, Boost Run and Pubco have filed relevant materials with the SEC, including the Registration Statement on Form S-4, which includes the proxy statement of Willow Lane and a prospectus in connection with Business Combination, referred to as a proxy statement/prospectus. The definitive proxy statement and other relevant documents will be mailed to shareholders of Willow Lane as of a record date established for voting on Willow Lane's proposed Business Combination with Boost Run. SHAREHOLDERS OF WILLOW LANE AND OTHER INTERESTED PARTIES ARE URGED TO READ, WHEN AVAILABLE, THE REGISTRATION STATEMENT, THE DEFINITIVE PROXY STATEMENT AND ALL OTHER RELEVANT DOCUMENTS FILED OR THAT WILL BE FILED WITH THE SEC IN CONNECTION WITH WILLOW LANE'S SOLICITATION OF PROXIES FOR THE EXTRAORDINARY GENERAL MEETING OF ITS SHAREHOLDERS TO BE HELD TO APPROVE THE BUSINESS COMBINATION BECAUSE THESE DOCUMENTS CONTAINS OR WILL CONTAIN IMPORTANT INFORMATION ABOUT WILLOW LANE, BOOST RUN, PUBCO AND THE BUSINESS COMBINATION. Shareholders will be able to obtain copies of the Registration Statement and the proxy statement/prospectus, without charge, once available, on the SEC's website at www.sec.gov or by directing a request to: Willow Lane Acquisition Corp, 250 West 57th Street, Suite 415, New York, NY 10107; or Boost Run, LLC, 5 Revere Drive, Suite 200 Northbrook, IL 60062.

Forward-Looking Statements

This press release contains certain forward-looking statements within the meaning of the federal securities laws with respect to the Business Combination, including expectations, hopes, beliefs, intentions, plans, prospects, financial results or strategies regarding Boost Run and the Business Combination. Forward-looking statements may be identified by the use of words such as "estimate," "plan," "project," "forecast," "intend," "may," "will," "expect," "continue," "should," "would," "anticipate," "believe," "seek," "target," "predict," "potential," "seem," "future," "outlook" or other similar expressions that predict or indicate future events or trends or that are not statements of historical matters, but the absence of these words does not mean that a statement is not forward-looking. These forward-looking statements include, but are not limited to, references with respect to the anticipated benefits and timing of the completion of the Business Combination; statements about Boost Run's new and expanded commercial relationships; statements about Boost Run's market opportunity and the potential growth of that market; Boost Run's strategy, outcomes and growth prospects; trends in Boost Run's industry and markets; the competitive environment in which Boost Run operates; and the ability for Boost Run to raise funds to support its business. These statements are based on various assumptions, whether or not identified in this press release, and on the current expectations of Boost Run's and Willow Lane's management and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as, and must not be relied on by any investor as, a guarantee, an assurance, a prediction or a definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict and will differ from assumptions. Many actual events and circumstances are beyond the control of Boost Run and Willow Lane.

These forward-looking statements (including projections) are predictions, and other statements about future events or conditions that are based on current expectations, estimates and assumptions and, as a result, are subject to risks and uncertainties, including the occurrence of any event, change or other circumstances that could give rise to the termination of the Business Combination Agreement; the risk that the Business Combination disrupts Boost Run's current plans and operations as a result of the announcement and consummation of the Business Combination; the inability of the parties to recognize the anticipated benefits of the Business Combination; the ability to maintain the listing of Willow Lane's securities on a national securities exchange; the ability to obtain or maintain the listing of the Pubco's securities on Nasdaq following the Business Combination, including having the requisite number of shareholders; costs related to the Business Combination; changes in business, market, financial, political and legal conditions; Boost Run's limited operating history, lack of history of operating as a public company and the rapidly evolving industry in which it operates; Boost Run's use and reporting of business and operational metrics; uncertainties surrounding Boost Run's business model; Boost Run's expectations regarding future financial performance, capital requirements and unit economics; Boost Run's competitive landscape; capital market, interest rate and currency exchange risks; Boost Run's ability to manage growth and expand its operations; Boost Run's ability to attract and retain additional customers and additional business from existing customers; Boost Run's ability to secure additional data center capacity at affordable rates; Boost Run's ability to acquire the GPUs necessary to expand its business at anticipated prices; the prices at which Boost Run will be able to sell the services it provides; Boost Run's ability to provide reliable high compute services; Boost Run's ability to successfully develop and sell new products and services; the risk that Boost Run's technology and infrastructure may not operate as expected, including but not limited to as a result of significant coding, manufacturing or configuration errors; the failure to offer high quality technical support; Boost Run's dependence on members of its senior management and its ability to attract and retain qualified personnel; uncertainty or changes with respect to taxes, trade conditions and the macroeconomic and geopolitical environment; risks related to the marketing of Boost Run's services to various government entities; uncertainty or changes with respect to laws and regulations; data protection or cybersecurity incidents and related regulations; disruption in the electrical power grid at or near one or more of Boost Run's data centers; physical security breaches; supply chain disruptions; changes in tariffs or import restrictions; Boost Run's lack of business interruption insurance; Boost Run's ability to maintain, protect and defend its intellectual property rights; the risk that the Business Combination may not be completed in a timely manner or at all, which may adversely affect the price of Willow Lane's securities; the risk that the Business Combination may not be completed by Willow Lane's business combination deadline and the potential failure to obtain an extension of the business combination deadline if sought by Willow Lane; the failure to satisfy the conditions to the consummation of the Business Combination; the outcome of any legal proceedings that may be instituted against Boost Run, Willow Lane, Pubco or others following announcement of the proposed Business Combination and transactions contemplated thereby; the risk that shareholders of Willow Lane could elect to have their shares redeemed, leaving Pubco with insufficient cash to execute its business plans; past performance by Boost Run management team may not be indicative of the future performance of Pubco after the Business Combination; the risk that an active market for the securities of Pubco after the Business Combination may not develop; and those risk factors discussed in documents of Willow Lane, Boost Run and Pubco filed, or to be filed, with the SEC. If any of these risks materialize or the assumptions prove incorrect, actual results could differ materially from the results implied by these forward-looking statements. There may be additional risks that neither Willow Lane nor Boost Run presently know or can anticipate or that Willow Lane and Boost Run currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In addition, forward-looking statements reflect Willow Lane's, Boost Run's and Pubco's expectations, plans or forecasts of future events and views as of the date of this press release. Willow Lane, Boost Run and Pubco anticipate that subsequent events and developments will cause Willow Lane's, Boost Run's and Pubco's assessments to change. However, while Willow Lane, Boost Run and Pubco may elect to update these forward-looking statements at some point in the future, Willow Lane, Boost Run and Pubco specifically disclaim any obligation to do so. Readers are referred to the most recent reports filed with the SEC by Willow Lane. Readers are cautioned not to place undue reliance upon any forward-looking statements, which speak only as of the date made, and Willow Lane, Boost Run and Pubco undertake no obligation to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise.  

Participants in the Solicitation

Boost Run, Willow Lane and Pubco and their respective directors and executive officers may be deemed under SEC rules to be participants in the solicitation of proxies from Willow Lane's shareholders in connection with the Business Combination. A list of the names of such directors and executive officers, and information regarding their interests in the Business Combination and their ownership of Willow Lane's securities are, or will be, contained in filings with the SEC relating to the Business Combination. Additional information regarding the interests of the persons who may, under SEC rules, be deemed participants in the solicitation of proxies of Willow Lane's shareholders in connection with the Business Combination, including the names and interests of Boost Run's directors and executive officers, is set forth in the proxy statement/prospectus included in the Registration Statement for the Business Combination. You may obtain free copies of these documents from the sources described above.

No Offer or Solicitation

This press release does not constitute (i) a solicitation of a proxy, consent or authorization with respect to any securities or in respect of the Business Combination or (ii) an offer to sell, a solicitation of an offer to buy or a recommendation to purchase any security of Boost Run, Willow Lane or any of their respective affiliates. This press release shall not constitute an offer to sell or the solicitation of an offer to buy any securities pursuant to the Business Combination or otherwise, nor shall there be any sale of securities in any jurisdiction in which the offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such jurisdiction. No such offering of securities shall be made except by means of a prospectus meeting the requirements of the Securities Act of 1933, as amended, or an exemption therefrom. NEITHER THE SEC NOR ANY STATE SECURITIES REGULATORY AGENCY HAS APPROVED OR DISAPPROVED THE BUSINESS COMBINATION DESCRIBED HEREIN, PASSED UPON THE MERITS OR FAIRNESS OF THE BUSINESS COMBINATION OR ANY RELATED TRANSACTIONS OR PASSED UPON THE ADEQUACY OR ACCURACY OF THE DISCLOSURE IN THIS REPORT. ANY REPRESENTATION TO THE CONTRARY CONSTITUTES A CRIMINAL OFFENSE.

Contacts
Investor Relations
April Scee
april.scee@riveron.com

Media Relations
Abby Trexler
abby.trexler@fullyvested.com

Cision View original content:https://www.prnewswire.com/news-releases/boost-run-and-willow-lane-announce-effectiveness-of-registration-statement-in-connection-with-proposed-business-combination-302737695.html

SOURCE Willow Lane Acquisition Corp.

FAQ

What did Boost Run and Willow Lane announce about the SEC filing and listing for BRUN on April 9, 2026?

The SEC declared the Form S-4 effective, clearing a key regulatory step for the deal. According to the company, this moves the proposed combination closer to a Nasdaq listing under BRUN and warrants under BRUNW, subject to shareholder approval and closing conditions.

When is the Willow Lane shareholder meeting to approve the Boost Run business combination (BRUN)?

Willow Lane scheduled an extraordinary meeting for April 30, 2026 at 10:00 a.m. ET. According to the company, shareholders of record as of March 12, 2026 will receive proxy materials and voting instructions ahead of that meeting.

What happens if Willow Lane shareholders vote to approve the Boost Run business combination (BRUN)?

If shareholders approve the proposals, the parties expect the Business Combination to close shortly thereafter. According to the company, closing will enable the surviving public company to be named Boost Run Inc. and pursue the planned Nasdaq listing.

How can Willow Lane shareholders attend and vote on the April 30, 2026 meeting for BRUN?

Shareholders can attend in person at the specified New York address or virtually via a live webcast with a control number. According to the company, voting instructions and proxy materials are available through the proxy statement and transfer agent portal.

What are the remaining conditions before Boost Run (BRUN) lists on Nasdaq after the S-4 effectiveness?

The remaining steps include securing shareholder approval and satisfying customary closing conditions required by the Business Combination Agreement. According to the company, some conditions have been satisfied or waived, with the remainder expected to be met before closing.