13F

Stock

Black Hawk Acquisition Corp

Ticker not mapped · held by 24 managers

Reported value

$22.5M

Holders

24

+3 new · −0 exited

Holders’ est. mark

$660.9K

Price effect on 20 books still in the name

Largest holder

$4.26M

MIZUHO SECURITIES USA LLC

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
MIZUHO SECURITIES USA LLC373.8K$4.26M$145.7KAdded$145.7K
WOLVERINE ASSET MANAGEMENT LLC340.8K$3.94M$102.2KAdded$59.7K
BERKLEY W R CORP309.1K$3.59M$115.9KAdded$115.9K
AQR Arbitrage LLC132.2K$1.53M$39.7KCut−$40.9K
BOOTHBAY FUND MANAGEMENT, LLC120K$1.39M$40.8KAdded$40.8K
Westchester Capital Management, LLC102K$1.18M$30.6KAdded$30.6K
METEORA CAPITAL, LLC89K$1.04M$40.1KCut−$83.7K
Yakira Capital Management, Inc.88.7K$1.03M$30.2KAdded$16.3K
D. E. Shaw & Co., Inc.75K$866.3K$22.5KAdded$22.5K
Clear Street Group Inc.74.6K$865K$20.1KAdded$200.9K
Warberg Asset Management LLC72.3K$840.8K$27.1KAdded$27.1K
Crossingbridge Advisors, LLC53K$614.5K$18KAdded$18K
Polar Asset Management Partners Inc.39.1K$453.2K$13.3KAdded$13.3K
RLH Capital LLC29.4K$342.3KHeld
Calamos Advisors LLC24.6K$284K$7.38KAdded$7.38K
GOLDMAN SACHS GROUP INC10.6K$122.8K$3.19KAdded$3.19K
Quarry LP10.5K$122.4K$3.95KAdded$3.95K
BNP PARIBAS FINANCIAL MARKETS4.57K$52.8KNew
TORONTO DOMINION BANK201$2.33K$69Added$69
UBS Group AG200$2.31K$60Added$60
MORGAN STANLEY60$693$14Added$153
SkyView Investment Advisors, LLC10K$116$3Added$3
Legacy Wealth Managment, LLC/ID2$24New
SBI Securities Co., Ltd.2$23New

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.