US Merger & Acquisition SEC Filings — June 24, 2026

USA M&A & Takeover Activity

By Gunpowder Editorial ·

5 high priority 5 total filings analysed

Executive Summary

The US M&A landscape on June 24, 2026, is characterized by a strong bifurcation between successful, high-confidence deal closures and struggling blank-check companies facing shareholder dissent. The period's most significant event is the completion of **Centessa Pharmaceuticals'** acquisition by Eli Lilly for $38.00 per share plus CVRs, a high-materiality event that removes a public company from the market.

In the SPAC space, **Alpha Star Acquisition Corp** achieved overwhelming shareholder approval for its business combination with XDATA Group, with a negligible 46 shares redeemed, signaling strong market confidence. Conversely, **Quartzsea Acquisition Corp** faced significant shareholder pushback, with 11.2% of shares redeemed to approve a simple extension, highlighting a trust deficit. The IPO of **Texas Ventures Acquisition IV Corp** adds a new $150 million vehicle to the market, while **Spring Valley Acquisition Corp. III** secured a small working capital loan to sustain operations. The aggregate data shows a clear trend: SPACs with credible targets and strong execution (Alpha Star) are rewarded, while those without a clear path (Quartzsea) face redemptions and uncertainty.

Materiality, sentiment, and priority are scored by Gunpowder’s analysis pipeline. How we score filings →

Filing types in this digest: 8-K

Tracking the trend? Catch up on the prior US Merger & Acquisition SEC Filings digest from June 23, 2026.

Investment Signals (8)

  • Acquisition by Eli Lilly completed at $38.00/share plus CVRs with potential $9.00 upside. Shareholders received immediate cash exit with a contingent upside, making this a definitive, high-certainty event. [BULLISH for deal certainty]

  • Business combination with XDATA Group received overwhelming shareholder approval (3.2M+ votes for, only 46 shares redeemed). This near-zero redemption rate signals extreme confidence in the deal's value and management.

  • Successfully priced a $150M IPO, demonstrating continued market appetite for new SPACs focused on industrial technology, logistics, energy transition, and communications. [BULLISH for SPAC IPO market]

  • Despite passing an extension vote, 11.2% of outstanding shares were redeemed, indicating significant shareholder dissatisfaction and a lack of confidence in finding a quality target.

  • Secured a $1.5M working capital loan from its sponsor, a non-dilutive (convertible to warrants) bridge. This signals the sponsor's commitment but also suggests the company is burning cash without a near-term deal. [NEUTRAL/BEARISH]

  • The deal structure included a CVR with up to $9.00 per share in milestone payments, providing a potential 23.7% upside on top of the $38.00 base price for investors who held through the close. [BULLISH for deal structure]

  • The unanimous vote on governance proposals (3.2M for, 0 against) suggests strong alignment between management and public shareholders, reducing post-merger governance risk.

  • The warrants have an $11.50 strike price, offering a leveraged play on the future business combination. With no target yet, this is a pure optionality play on management's deal-making ability. [NEUTRAL/BULLISH for warrant investors]

Risk Flags (8)

  • 1,275,382 shares (11.2% of outstanding) were redeemed to approve a simple extension. This is a massive vote of no confidence and signals a high risk of further redemptions or failure to close a deal.

  • The extension only runs to October 19, 2026, with limited one-month extensions. If no target is found, the SPAC will liquidate, resulting in a total loss of time value for investors.

  • The company required a $1.5M working capital loan from its sponsor, indicating it is depleting its cash reserves without a definitive business combination agreement. This is a classic distress signal for pre-deal SPACs.

  • The CVRs are non-transferable and contingent on achieving specific milestones. If milestones are not met, investors receive no additional payment, making the $38.00 the effective final value.

  • As a newly IPO'd SPAC, it has no identified target. The risk is that management fails to find a suitable acquisition within the 18-24 month window, leading to liquidation.

  • While the deal is approved, the combined entity (XDATA Group) must now execute on its business plan. The unanimous vote creates high expectations, and any post-merger underperformance could lead to sharp sell-offs.

  • All prior executive officers and directors resigned upon the acquisition's effectiveness. This creates a complete leadership vacuum at the subsidiary level, though it is standard for a full takeover.

  • The filing does not mention insider participation in the vote or any insider buying to support the extension. The lack of insider support alongside high redemptions is a negative signal.

Opportunities (6)

  • With the deal approved and only 46 shares redeemed, the stock should trade very close to the trust value. Any discount to trust post-announcement represents a low-risk arbitrage opportunity until the deal closes.

  • For investors who held through the close, the CVRs offer a free option on potential milestone payments of up to $9.00. If the milestones are perceived as achievable, these could trade at a premium in the private market.

  • With the IPO just priced, warrants are likely trading at a discount. Buying warrants early in a SPAC's life cycle can provide significant upside if a high-quality target is acquired.

  • If the stock is trading significantly below trust value due to the redemption news, it could present a buying opportunity for investors willing to bet on a last-minute deal or a liquidation at trust value.

  • The sponsor's willingness to provide a $1.5M loan (convertible to warrants) shows commitment. If a deal is announced, the low-cost warrants could appreciate significantly.

  • The business combination provides exposure to the XDATA Group's business. If XDATA operates in a high-growth sector (e.g., AI, data analytics), the post-merger stock could re-rate higher.

Sector Themes (5)

  • SPAC Market Divergence

    The data shows a clear 'haves and have-nots' dynamic. Alpha Star (near-zero redemptions) and Texas Ventures (successful IPO) represent the healthy end, while Quartzsea (11.2% redemptions) and Spring Valley (needs sponsor loan) represent the struggling end. The market is punishing SPACs without clear, high-quality targets.

  • Shareholder Activism in SPACs

    The 11.2% redemption rate at Quartzsea is a powerful example of shareholders using their redemption rights to express dissent. This trend is likely to continue, forcing SPAC sponsors to find better targets or face liquidation.

  • Big Pharma M&A Continues

    Eli Lilly's acquisition of Centessa for $38.00/share plus CVRs underscores the ongoing appetite for large pharmaceutical companies to acquire biotech assets, particularly those with late-stage pipelines or platforms. The CVR structure is a common tool to bridge valuation gaps.

  • Industrial Tech as a SPAC Focus

    Texas Ventures Acquisition IV Corp's explicit focus on industrial technology (logistics, energy transition, communications) highlights a thematic shift in the SPAC market towards tangible, high-growth sectors over speculative tech.

  • Sponsor Support as a Key Signal

    Spring Valley's $1.5M working capital loan demonstrates that sponsor financial support is a critical lifeline for cash-strapped SPACs. The ability of a sponsor to provide such loans is a key differentiator for a SPAC's survival probability.

Watch List (7)

  • Monitor for any announcement of a target business combination before the October 19, 2026 deadline. Further insider selling or redemptions would be a major red flag.

  • Watch for the closing date of the XDATA business combination and the subsequent Nasdaq listing. Post-merger trading volume and price action will be key indicators of market reception.

  • Monitor for the underwriters' exercise of the 45-day option to purchase up to 2.25M additional units. Also track any early target rumors or announcements.

  • Watch for any definitive business combination agreement. The company's cash position and ability to secure additional financing are critical to monitor.

  • Track public announcements from Eli Lilly regarding the progress of Centessa's pipeline assets that trigger the CVR payments. Any positive data readouts could create value for CVR holders.

  • General SPAC Market
    👁

    Monitor the performance of recently de-SPACed companies. A wave of post-merger underperformance could further dampen sentiment and increase redemption rates for pending deals.

  • Eli Lilly (LLY)
    👁

    Monitor Lilly's post-acquisition commentary on the Centessa deal. Any mention of pipeline prioritization or cost synergies will provide insight into the deal's strategic rationale.

Filing Analyses (5)
Quartzsea Acquisition Corp 8-K mixed materiality 8/10

24-06-2026

Quartzsea Acquisition Corp shareholders approved an extension of the deadline to consummate an initial business combination from June 19, 2026 to October 19, 2026, with up to four additional one-month extensions. All three proposals passed with 7,459,067 votes in favor and 1,980,763 against. However, 1,275,382 ordinary shares (approximately 11.2% of outstanding shares) were redeemed in connection with the meeting, indicating significant shareholder dissent.

  • · The record date for the meeting was May 29, 2026.
  • · The trust agreement was originally dated March 17, 2025.
  • · The extension can be done on a month-to-month basis for up to four additional one-month extensions beyond October 19, 2026.
  • · The Company will file an amendment to its Second Amended and Restated Memorandum of Association with the Cayman Islands Registrar.
Alpha Star Acquisition Corp 8-K positive materiality 9/10

24-06-2026

Alpha Star Acquisition Corporation held an Extraordinary General Meeting on June 24, 2026, where shareholders approved all seven proposals related to the business combination with XDATA Group, including the Business Combination Agreement, Reincorporation Merger, Nasdaq listing, governance changes, incentive plan, director appointments, and adjournment. The proposals received overwhelming support with over 3.2 million votes in favor and minimal opposition. Only 46 ordinary shares were tendered for redemption, indicating strong shareholder confidence. The company plans to close the transaction as soon as possible.

  • · The Business Combination Agreement was dated September 12, 2024, and amended by a Supplemental Agreement.
  • · Proposal 4 (Governance Proposal) received unanimous support with 3,206,449 votes for and none against or abstain.
  • · Proposal 7 (Adjournment Proposal) also received unanimous support.
  • · The company's securities trade on the OTC Market under symbols ALSUF, ALSAF, ALSWF, and ALSTF.
  • · The company is an emerging growth company.
Texas Ventures Acquisition IV Corp 8-K neutral materiality 9/10

24-06-2026

Texas Ventures Acquisition IV Corp (TVIV) priced its $150,000,000 initial public offering of 150,000,000 units, each consisting of one Class A ordinary share and one-half of one redeemable warrant. The units are expected to begin trading on Nasdaq on June 18, 2026, with the offering closing on June 22, 2026. The blank check company will focus on acquiring industrial technology targets, with an emphasis on companies implementing advanced technologies in sectors such as logistics, energy transition, and communications.

  • · Each warrant entitles holder to purchase one Class A ordinary share at $11.50 per share
  • · No fractional warrants will be issued; only whole warrants will trade after separation
  • · The Company has granted underwriters a 45-day option to purchase up to an additional 2,250,000 units
  • · The registration statement became effective on June 17, 2026
  • · The Company's primary focus will be on industrial technology targets including digital/energy transition, logistics, transportation, and high bandwidth services
Spring Valley Acquisition Corp. III 8-K neutral materiality 5/10

24-06-2026

Spring Valley Acquisition Corp. III has entered into a new promissory note with its sponsor, Spring Valley Acquisition III Sponsor, LLC, for up to $1.5 million in working capital advances. The note is non-interest bearing, matures upon the consummation of an initial business combination, and is convertible into warrants at the sponsor's option. No prior period comparisons are available as this is a new arrangement.

  • · The principal is repayable on the date of consummation of the initial business combination (Maturity Date).
  • · No interest accrues on the unpaid principal.
  • · Upon maturity, the sponsor may convert all or part of the outstanding principal into Working Capital Warrants at a conversion price of $0.90 per warrant.
  • · Working Capital Warrants will have the same terms as the private placement warrants from the IPO, including transfer restrictions and registration rights.
  • · The maker (company) waives any claim to or from the trust account established for the IPO proceeds.
  • · The note is governed by Delaware law and is not assignable without the other party's consent.
  • · The note includes customary default provisions: non-payment, voluntary bankruptcy, and involuntary bankruptcy with a 60-day grace period.
Centessa Pharmaceuticals plc 8-K neutral materiality 10/10

24-06-2026

Centessa Pharmaceuticals plc was acquired by Eli Lilly and Company via a court-sanctioned scheme of arrangement on June 24, 2026, becoming a wholly owned subsidiary of Lilly. Shareholders received $38.00 per share in cash plus one non-transferable contingent value right (CVR) per share, with potential additional cash payments of up to $9.00 per share upon achieving specified milestones. In connection with the acquisition, Centessa terminated its loan agreement with Oxford Finance LLC, delisted its ADSs from Nasdaq, and all prior executive officers and directors resigned, with Christopher Stokes and Kristina Mignon Wright appointed as new directors.

  • · The acquisition was conditioned on court sanction and delivery of the Court Order to the Registrar of Companies in England and Wales.
  • · The Scheme of Arrangement was sanctioned by the High Court on June 22, 2026, and became effective on June 24, 2026.
  • · Company options with exercise price below $38.00 were canceled in exchange for cash equal to the spread plus one CVR per share; underwater options (exercise price ≥ $38.00) were canceled for no consideration.
  • · All outstanding and unvested restricted stock units (RSUs) vested immediately and were canceled in exchange for cash equal to $38.00 per share plus one CVR per share.
  • · Centessa terminated its Amended and Restated Sales Agreement with Leerink Partners LLC, ending the at-the-market offering program.
  • · Trading of Centessa ADSs was halted as of 8:00 p.m. New York City time on June 23, 2026.

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