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Sculptor Capital and related entities filed an amended Schedule 13G indicating they no longer beneficially own any Class A ordinary shares of JAB Acquisition Corp I. The filing reports 0 shares beneficially owned, representing 0% of the class, with no sole or shared voting or dispositive power.
The ownership calculations reference 18,605,000 Class A ordinary shares outstanding, as disclosed in JAB Acquisition Corp I’s Form 10-Q filed August 14, 2026. Multiple affiliated Sculptor entities are listed as potential beneficial owners under SEC aggregation rules but currently report no position.
Highbridge Capital Management, LLC, a Delaware investment adviser, reports beneficial ownership of 1,638,750 Class A ordinary shares of JAB Acquisition Corp I. This represents 8.8% of the 18,605,000 Class A ordinary shares outstanding, based on the issuer’s prospectus and subsequent report after the offering and related transactions.
Highbridge has sole voting and dispositive power over these shares and no shared power. The shares are directly held by funds and accounts it advises, including Highbridge Tactical Credit Master Fund, L.P., which has rights to dividends or sale proceeds on more than 5% of the outstanding Class A ordinary shares. Highbridge states the report should not be construed as an admission of beneficial ownership for all legal purposes.
JAB Acquisition Corp I is a Cayman Islands-based special purpose acquisition company formed on March 10, 2026 to complete a business combination. On June 11, 2026 it raised $172.5 million through an IPO of 17,250,000 units and $2.6 million from 260,000 private units. As of June 30, 2026, $172,816,825 was held in a Trust Account for public shareholders, with $644,149 of cash available outside the trust for working capital. For the period from inception through June 30, 2026, the company reported net income of $113,697, driven by $316,825 of interest on trust cash, offset by $203,128 of formation and operating expenses. There were 18,605,000 Class A ordinary shares and 9,857,143 Class B ordinary shares outstanding as of August 14, 2026. Management discloses substantial doubt about the company’s ability to continue as a going concern because it must complete a business combination within 12 months of the IPO (extendable by up to six months with additional deposits) or liquidate, and it expects to incur significant costs pursuing a transaction.
Aristeia Capital, L.L.C. reports a passive ownership stake in JAB Acquisition Corp I. Aristeia is the beneficial owner of 900,000 Units, each Unit consisting of one Class A ordinary share, one redeemable warrant and one right to receive one-fourth of one Class A ordinary share.
This position represents 5.22% of the outstanding Units, based on 17,250,000 shares outstanding as of June 11, 2026. Aristeia holds sole voting and sole dispositive power over all 900,000 Units, with no shared voting or dispositive power.
JAB Acquisition Corp I has a significant shareholder reported on a Schedule 13G. Decagon Asset Management LLP and Benjamin John Durham together report beneficial ownership of 908,000 Class A ordinary shares, representing 5.26% of the outstanding Class A shares.
Both Decagon Asset Management LLP and Benjamin John Durham report sole voting power and sole dispositive power over 908,000 shares, with no shared voting or dispositive power. The filing lists JAB Acquisition Corp I’s Class A ordinary shares with a par value of $0.0001 per share and CUSIP G50004129.
Mizuho Financial Group, Inc., a Japan-based parent holding company, reports beneficial ownership of common shares of JAB Acquisition Corp I. The group holds 1,011,661 common shares of JAB Acquisition Corp I, representing 6.6% of the outstanding class.
Mizuho Financial Group has sole voting power and sole dispositive power over all 1,011,661 shares, with no shared voting or dispositive authority. The equity securities are directly held by Mizuho Securities USA LLC, a wholly owned subsidiary, and Mizuho Financial Group, Inc., Mizuho Bank, Ltd. and Mizuho Americas LLC may be deemed indirect beneficial owners.
The reporting person files as a parent holding company and certifies that its foreign regulatory regime is substantially comparable to that of equivalent U.S. institutions, and undertakes to provide additional information to the Commission staff upon request.
JAB Acquisition Corp I received a Schedule 13G from Magnetar-related entities reporting a significant passive ownership stake in its Class A ordinary shares. As of June 30, 2026, Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman together reported beneficial ownership of 900,000 Class A shares.
These shares are held across several Magnetar-managed funds and represent 5.22% of JAB Acquisition Corp I’s 17,250,000 Class A shares outstanding, based on issuer information in a June 12, 2026 Form 8-K. The reporting persons have shared voting and dispositive power over all 900,000 shares and no sole voting or dispositive power.
Feis Equities LLC and Lawrence M. Feis report beneficial ownership of Class A ordinary shares of JAB Acquisition Corp I. They collectively report ownership of 553,126 Class A ordinary shares, representing 3.02% of the class. As of July 23, 2026, the issuer had 18,345,000 Class A ordinary shares outstanding, which is the basis for the reported percentage. The reporting persons state sole voting and sole dispositive power over all 553,126 shares, with no shared voting or dispositive power. The filing also indicates ownership of 5 percent or less of the class and includes a joint filing agreement as Exhibit A.
JAB Acquisition Corp I reported that, beginning August 5, 2026, holders of its units may elect to trade separately the Class A ordinary shares, rights and warrants included in those units. The company sold 17,250,000 units in its initial public offering.
Each unit consists of one Class A ordinary share, one right to receive one-fourth of a Class A ordinary share and one redeemable warrant to purchase one Class A ordinary share at $11.50 per share, subject to adjustments. Units continue to trade on Nasdaq under the symbol JABRU, while separated Class A ordinary shares, rights and warrants trade under JAB, JABRR and JABRW, respectively. Only whole shares, rights and warrants will trade, and holders must work through their brokers and the transfer agent to separate units.
JAB Acquisition Corp I, a Cayman Islands special purpose acquisition company, reports its first results for the period from March 10, 2026 (inception) through March 31, 2026. The company had total assets of $50,230, consisting entirely of prepaid expenses, funded primarily by a related-party promissory note of $48,895, leaving shareholder’s equity of $1,335.
It recorded a net loss of $23,665, all from formation and operating expenses, and had no cash or revenues. On June 11, 2026, after quarter-end, JAB completed its SPAC initial public offering of 17,250,000 units at $10.00 each, generating $172,500,000 of gross public proceeds, plus a private placement of 260,000 units for $2,600,000. Transaction costs totaled $3,396,791, and $811,381 of cash from these transactions was available outside the trust account.
Proceeds placed in a trust account are intended to fund a future business combination, with public shareholders given redemption rights at an initial $10.00 per share benchmark, subject to specified deductions. The company has 12 months from the IPO date to complete a business combination, extendable twice by three months each by depositing $0.10 per share per extension. Management determined these deadlines and expected costs raise substantial doubt about its ability to continue as a going concern absent a timely transaction. As of July 23, 2026, there were 18,345,000 Class A and 9,857,143 Class B ordinary shares outstanding. Disclosure controls and procedures were assessed as not effective due to limited personnel and insufficient written policies.