Black Hawk Acquisition CORP Schedule 13G passive stakes

First Trust Merger Arbitrage Fund and related entities have reported zero beneficial ownership in Black Hawk Acquisition Corp as of September 30, 2025.

Kerry Propper and Antonio Ruiz-Gimenez have jointly disclosed a 5.8% beneficial ownership stake in Black Hawk Acquisition Corporation, totaling 240,999 ordinary shares each.

AQR Capital Management, along with its affiliates, reported a passive beneficial ownership of 3.36% in Black Hawk Acquisition Corp, holding 139,365 ordinary shares.

W. R. Berkley Corporation and its subsidiary Berkley Insurance Company have reported a 7.4% beneficial ownership stake in Black Hawk Acquisition Corporation as of September 30, 2025.

Wolverine Asset Management and affiliated entities have reported a beneficial ownership of 8.64% in Black Hawk Acquisition Corp, totaling 358,888 ordinary shares.

Mizuho Financial Group, Inc. has filed an amended Schedule 13G, disclosing a beneficial ownership of 8.4% in Black Hawk Acquisition Corporation's Common Shares.

W. R. Berkley Corporation and its subsidiary Berkley Insurance Company have disclosed a 5.2% beneficial ownership stake in Black Hawk Acquisition Corporation.

Karpus Management, Inc. has filed an amended Schedule 13G, reporting zero beneficial ownership in Black Hawk Acquisition Corp.

Mizuho Financial Group, Inc. has filed an amended Schedule 13G, reporting a beneficial ownership of 8.6% in Black Hawk Acquisition Corporation as of March 31, 2025.

TD Securities (USA) LLC, a subsidiary of Toronto-Dominion Bank, has disclosed a beneficial ownership of 3.2% of Black Hawk Acquisition Corp's ordinary shares in an amended Schedule 13G filing.

First Trust Merger Arbitrage Fund and affiliated entities, First Trust Capital Management L.P., First Trust Capital Solutions L.P., and FTCS Sub GP LLC, have disclosed beneficial ownership stakes of 6.84% and 8.91% respectively in Black Hawk Acquisition Corp's Class A Ordinary Shares as of December 31, 2024.

TD Securities (USA) LLC, a subsidiary of Toronto Dominion Bank, has disclosed a passive 5.4% beneficial ownership stake in Black Hawk Acquisition Corp's ordinary shares as of December 31, 2024.

Mizuho Financial Group, Inc. has filed an amended Schedule 13G, revealing a 7.7% passive beneficial ownership stake in Black Hawk Acquisition Corporation as of December 31, 2024.