Polar Asset Management Partners Inc. Reports New 8.2% Stake in SPACSphere Acquisition Corp (SSAC)

Polar Asset Management Partners Inc., a Canadian-based investment fund manager, has filed a Schedule 13G regarding its holdings in SPACSphere Acquisition Corp (SSAC). As of the event date on March 31, 2026, the firm reported a new position consisting of 1,490,000 Class A ordinary shares. This stake represents approximately 8.2% of the company's outstanding shares. Polar Asset Management Partners Inc. serves as the investment advisor to the Polar Multi-Strategy Master Fund (PMSMF), which directly holds the securities. The reporting person maintains sole voting and dispositive power over the entire 1,490,000 shares. The filing was made under Rule 13d-1(b), indicating that the shares were acquired in the ordinary course of business and not with the intent to influence or change the control of the issuer. This initial reporting marks a significant entry into the SPAC by the Ontario-based investment manager.