Magnetar Financial LLC and affiliated reporting persons filed a Schedule 13G with the SEC on November 13, 2026, disclosing beneficial ownership of 2,200,000 Class A ordinary shares of Haymaker Acquisition Corp V as of September 30, 2026.

Key Highlights

  • Total beneficial ownership: Each reporting person is deemed to beneficially own 2,200,000 Class A ordinary shares, representing approximately 7.65% of shares outstanding.
  • Shares outstanding basis: The 7.65% figure was calculated using approximately 28,750,000 shares outstanding, based on information from an issuer filing dated September 24, 2026.
  • Voting and dispositive power: All 2,200,000 shares carry shared voting power and shared dispositive power; sole voting and sole dispositive power are each reported as zero.
  • Four reporting persons: The filing covers Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman, all based at 1603 Orrington Avenue, 13th Floor, Evanston, Illinois 60201.
  • Largest single fund allocation: Magnetar Constellation Master Fund, Ltd holds 594,000 of the reported shares, the largest single-fund position among the seven Magnetar Funds listed.
  • Acquisition purpose: The filing certifies that the securities "were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer."

Magnetar Fund Group Discloses Class A Share Position Across Seven Accounts

According to the filing, Magnetar Financial LLC serves as investment adviser to a group of funds collectively referred to as the Magnetar Funds, exercising voting and investment power over the shares held in those funds' accounts. Haymaker Acquisition Corp V, whose Class A ordinary shares carry a par value of $0.0001 per share and trade under CUSIP G43866105, is a special purpose acquisition company headquartered at 515 North Flagler Drive, Suite 350, West Palm Beach, FL 33401.

The 2,200,000 shares reported are distributed across seven separate fund accounts, as the filing details: 594,000 shares held by Magnetar Constellation Master Fund, Ltd; 528,000 by Magnetar Structured Credit Fund, LP; 418,000 each by Magnetar Alpha Star Fund LLC and Magnetar Xing He Master Fund Ltd; 154,000 by Magnetar Lake Credit Fund LLC; 66,000 by Magnetar Waterfront Series A LLC; and 22,000 by Magnetar Capital Master Fund Ltd. The filing reports that Magnetar Capital Partners LP is the sole member and parent holding company of Magnetar Financial, that Supernova Management LLC is the general partner of Magnetar Capital Partners, and that David J. Snyderman serves as the administrative manager of Supernova Management.

All four reporting persons are listed as Delaware-organized entities or, in the case of Mr. Snyderman, a United States citizen. The event date triggering the filing is stated as September 30, 2026, and the document was signed on November 13, 2026 by Hayley Stein as attorney-in-fact for David J. Snyderman.

What Was Disclosed

Four affiliated reporting persons under the Magnetar Capital organizational structure collectively disclosed beneficial ownership of 2,200,000 Class A ordinary shares of Haymaker Acquisition Corp V, equaling approximately 7.65% of shares outstanding as of September 30, 2026, with all voting and dispositive power held on a shared basis.