Insider Transactions Reported by 5 Insiders of Black Hawk Acquisition Corp

Symbol: BKHA, BKHAR, BKHAU on Nasdaq
Location: Danville, CA

Quick Takeaways

BKHA - Black Hawk Acquisition Corp has 5 insiders with reported activity on this page.
No net insider buy/sell flow is currently reported for the last year.
Recent transaction rows are not currently available.

What Changed

No meaningful buy/sell imbalance is currently visible in the one-year window.
Activity will update as new Forms 3/4/5 are filed.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Official SEC Source

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 15 Apr 2025.

Buys

Shares: 0

Insiders: 0

Sells

Shares: 0

Insiders: 0

Net

Shares: 0

Insiders: 0

Window (months)	Buy $	Sell $	Net $
0-3	$0	$0	$0
3-6	$0	$0	$0
6-9	$0	$0	$0
9-12	$0	$0	$0

Black Hawk Acquisition Corp executives and other stock owners filed with the SEC include:

Name	Relationship	Valuation	Report Date
Kent Louis Kaufman	Chairman, CEO, and CFO, Director	Mixed	20 Mar 2024
Terry W. Protto	Director	Mixed	20 Mar 2024
Brandon Miller	Director	Mixed	20 Mar 2024
Daniel M. McCabe	Director	Mixed	20 Mar 2024
Black Hawk Management LLC	10%+ Owner	Mixed	04 Apr 2024

Top shareholders of Black Hawk Acquisition Corp (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
MIZUHO FINANCIAL GROUP INC	13D/G	—	8.4%	750,000	$7,987,500	-$181,050	30 Jun 2025	13D/G
MIZUHO SECURITIES USA LLC	13F	Company	9%	373,800	$4,115,583	—	31 Dec 2025	13F
WOLVERINE ASSET MANAGEMENT LLC	13D/G 13F	Company	8.6%	358,888	$3,933,412	$0	30 Sep 2025	13D/G 13F
BERKLEY W R CORP	13F 13D/G	Company · W. R. Berkley Corporation	7.4% from 13D/G	309,134	$3,477,758	—	31 Dec 2025	13F 13D/G
TD SECURITIES (USA) LLC	13D/G	—	3.2%	282,130	$2,996,221	-$2,114,591	31 Mar 2025	13D/G
Kerry Propper	13D/G	—	5.8%	240,999	$2,687,139	$0	30 Sep 2025	13D/G
AQR Arbitrage LLC	13F	Company	— mixed-class rows	226,610 mixed-class rows	$1,681,275	—	31 Dec 2025	13F
AQR CAPITAL MANAGEMENT LLC	13D/G	—	3.4%	139,365	$1,553,920	$0	30 Sep 2025	13D/G
BOOTHBAY FUND MANAGEMENT, LLC	13F	Company	— mixed-class rows	155,375 mixed-class rows	$1,395,988	—	31 Dec 2025	13F
Westchester Capital Management, LLC	13F	Company	— mixed-class rows	111,923 mixed-class rows	$1,160,102	—	31 Dec 2025	13F
METEORA CAPITAL, LLC	13F	Company	2.4%	100,001	$1,125,011	—	31 Dec 2025	13F
Yakira Capital Management, Inc.	13F	Company	— mixed-class rows	107,980 mixed-class rows	$1,035,714	—	31 Dec 2025	13F
D. E. Shaw & Co., Inc.	13F	Company	— mixed-class rows	90,000 mixed-class rows	$863,250	—	31 Dec 2025	13F
Warberg Asset Management LLC	13F	Company	1.7%	72,323	$813,634	—	31 Dec 2025	13F
Clear Street Group Inc.	13F	Company	— mixed-class rows	105,632 mixed-class rows	$749,263	—	31 Dec 2025	13F
Crossingbridge Advisors, LLC	13F	Company	1.3%	53,024	$596,520	—	31 Dec 2025	13F
Polar Asset Management Partners Inc.	13F	Company	— mixed-class rows	59,100 mixed-class rows	$465,875	—	31 Dec 2025	13F
Harraden Circle Investments, LLC	13F	Company	— class O/S missing	249,020	$323,726	—	31 Dec 2025	13F
TORONTO DOMINION BANK	13F	Company	— mixed-class rows	238,201 mixed-class rows	$311,661	—	31 Dec 2025	13F
Calamos Advisors LLC	13F	Company	0.59%	24,591	$276,649	—	31 Dec 2025	13F
HIGHBRIDGE CAPITAL MANAGEMENT LLC	13F	Company	— class O/S missing	142,544	$185,307	—	31 Dec 2025	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.26%	10,635	$119,644	—	31 Dec 2025	13F
Quarry LP	13F	Company	0.25%	10,528	$118,440	—	31 Dec 2025	13F
SkyView Investment Advisors, LLC	13F	Company	0.24%	10,000	$113,000	—	31 Dec 2025	13F
RIVERNORTH CAPITAL MANAGEMENT, LLC	13F	Company	— class O/S missing	62,997	$80,006	—	31 Dec 2025	13F
Shaolin Capital Management LLC	13F	Company	— class O/S missing	52,666	$68,466	—	31 Dec 2025	13F
CITADEL ADVISORS LLC	13F	Company	— class O/S missing	37,781	$49,115	—	31 Dec 2025	13F
WHITEBOX ADVISORS LLC	13F	Company	— class O/S missing	25,000	$32,500	—	31 Dec 2025	13F
PERISCOPE CAPITAL INC.	13F	Company	— class O/S missing	19,700	$29,747	—	31 Dec 2025	13F
Centiva Capital, LP	13F	Company	— class O/S missing	19,445	$25,279	—	31 Dec 2025	13F
HGC Investment Management Inc.	13F	Company	— class O/S missing	10,000	$13,000	—	31 Dec 2025	13F
UBS Group AG	13F	Company	— mixed-class rows	3,200 mixed-class rows	$6,060	—	31 Dec 2025	13F
LONGFELLOW INVESTMENT MANAGEMENT CO LLC	13F	Company	— class O/S missing	1,511	$1,964	—	31 Dec 2025	13F
MORGAN STANLEY	13F	Company	0%	48	$540	—	31 Dec 2025	13F
BANK OF AMERICA CORP /DE/	13F	Company	— class O/S missing	100	$127	—	31 Dec 2025	13F
Black Hawk Management LLC	3/4/5	10%+ Owner	— class O/S missing	1,725,000	—	—	04 Apr 2024	3/4/5

Recent Insider Transactions by Companies or Individuals for Black Hawk Acquisition Corp

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
No insider transactions were found in the last 12 months for this issuer.

* An asterisk sign (*) next to the price indicates that the price is likely invalid.