Magnetar Financial LLC and affiliated reporting persons filed a Schedule 13G with the SEC on November 13, 2026, disclosing beneficial ownership of 1,500,000 Class A ordinary shares of Pinnacle Acquisition Corp as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: Each reporting person may be deemed the beneficial owner of 1,500,000 Class A ordinary shares, par value $0.0001 per share, of Pinnacle Acquisition Corp.
  • Percent of class: The 1,500,000 shares represent approximately 7.42% of the approximately 20,225,000 shares outstanding, according to the filing.
  • Shared voting and dispositive power: All 1,500,000 shares are held with shared voting power and shared dispositive power; sole voting and sole dispositive power are each reported as 0.
  • Four reporting persons: Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC, and David J. Snyderman are each named as reporting persons.
  • Shares distributed across six funds: The position is spread across Constellation Master Fund (420,000), Structured Credit Fund (330,000), Alpha Star Fund (315,000), Xing He Master Fund (255,000), Lake Credit Fund (120,000), and Waterfront Series A Fund (60,000).
  • Event date: The date of the event requiring the filing is reported as September 30, 2026.

Magnetar Financial's 1,500,000-Share Position in Pinnacle Acquisition Corp

According to the Schedule 13G filed November 13, 2026, Magnetar Financial LLC serves as the investment adviser to the Magnetar Funds and, in that capacity, exercises voting and investment power over the shares held in those funds' accounts. Magnetar Capital Partners LP is disclosed as the sole member and parent holding company of Magnetar Financial. Supernova Management LLC is identified as the general partner of Magnetar Capital Partners, and David J. Snyderman is identified as the administrative manager of Supernova Management. All four entities share the same principal business address at 1603 Orrington Avenue, 13th Floor, Evanston, Illinois 60201.

The filing reports that the aggregate 1,500,000 shares were calculated as approximately 7.42% of the total shares outstanding, based on approximately 20,225,000 shares outstanding as reported by Pinnacle Acquisition Corp in a Form 10-Q filed on September 18, 2026, according to the Schedule 13G. Pinnacle Acquisition Corp is headquartered at 375 South County Road, Suite 220, Palm Beach, FL 33480, as stated in the filing. The CUSIP number for the Class A ordinary shares is G7115W109.

The filing's certification states 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 of the securities." No ticker symbol or exchange listing was identified in the filing text itself.

What Was Disclosed

Magnetar Financial LLC and three affiliated persons filed a Schedule 13G reporting shared beneficial ownership of 1,500,000 Class A ordinary shares of Pinnacle Acquisition Corp, equal to approximately 7.42% of the class, as of September 30, 2026.