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Sculptor Capital and affiliated entities filed Amendment No. 1 to a Schedule 13G reporting a passive ownership stake in AmperCap Acquisition Co ordinary shares. The group reports beneficial ownership of 1,021,965 ordinary shares, representing 5.12% of the class, with shared voting and dispositive power over all reported shares and no sole power. The stake is held across various investment accounts managed by Sculptor Capital LP and Sculptor Capital II LP, with upstream entities Sculptor Capital Holding Corporation, Sculptor Capital Holding II LLC, Sculptor Capital Management, Inc., and Sculptor Master Fund, Ltd. potentially deemed beneficial owners. The ownership percentage is calculated based on 19,958,575 ordinary shares outstanding as disclosed in AmperCap’s Form 10-Q filed on August 13, 2026.
AmperCap Acquisition Company, a Cayman Islands-based SPAC, completed its IPO in June 2026, issuing 12,500,000 units and an additional 1,837,500 option units. Together with 567,625 private placement units, this resulted in approximately $144,808,750 being placed in a U.S. Trust Account.
As of June 30, 2026, total assets were $146,148,905, including $145,165,937 in marketable securities held in the Trust Account and $796,296 of cash outside the Trust for working capital, producing a working capital surplus of $728,778. Net income was $192,135 for the quarter and $139,773 for the six months, driven mainly by interest on Trust investments.
The company had 19,958,575 ordinary shares outstanding, including 14,337,500 public shares classified as redeemable at $10.12 per share. AmperCap has until March 4, 2028 to complete a business combination and reports that post-IPO liquidity is sufficient to fund operations for at least one year.
Ampercap Acquisition Co has a new substantial shareholder group led by Magnetar entities. As of June 30, 2026, Magnetar Financial LLC, Magnetar Capital Partners LP, Supernova Management LLC and David J. Snyderman together were deemed to beneficially own 1,200,000 Class A ordinary shares.
These shares represent 8.05% of Ampercap’s 14,905,125 Class A shares outstanding, based on issuer data from June 18, 2026. The position is held across several Magnetar-managed funds, with all 1,200,000 shares subject to shared voting and shared dispositive power and no sole voting or dispositive authority reported.
Adage Capital Management, L.P., together with Robert Atchinson and Phillip Gross, reports beneficial ownership of 1,125,000 Ordinary Shares of AmperCap Acquisition Company. These Ordinary Shares have a par value of $0.0001 per share.
The stake represents 5.64% of the outstanding class, based on 19,958,575 Ordinary Shares outstanding after AmperCap’s offering, simultaneous private placement, partial exercise of the underwriters’ over-allotment option, and forfeiture of 13,217 shares, as referenced in the company’s prospectus and a subsequent current report. The Reporting Persons share both voting and dispositive power over these shares and disclaim that this filing alone constitutes an admission of beneficial ownership beyond what is reported.
AmperCap Acquisition Company entered into an amendment to its Administrative Services Agreement with its sponsor, AmperSPAC LLC, adjusting how a services fee of up to $5,000 per month is paid for office space, utilities, and administrative support.
Effective July 1, 2026, the fee is paid in advance on a quarterly basis during the first month of each calendar quarter, and any portion prepaid but not accrued as of the Termination Date must be refunded to the company within five business days.
AmperCap Acquisition Company: Wealthspring Capital LLC and Matthew Simpson report beneficial ownership of 990,000 ordinary shares, representing 5.47% of the class as of 06/30/2026.
The filing states these holdings are held in the form of Units, each consisting of one ordinary share and one right. The reporting persons indicate shared voting and dispositive power over the 990,000 shares and executed a joint filing agreement dated 07/09/2026.