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JACS · NYSE · Shell Companies

Jackson Acquisition Company II (JACS)

Blank-check company seeking a healthcare services or technology business combination.

$10.75
At close0.00 (0.00%)
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Breakdown13F · 13D/G · Form 4

Institutions47 holders · as of Mar 31, 2026 · largest filers plus last quarter's tail≈ 74.74%22.12M shares
Strategic holders1 holder · as of Nov 12, 20255.49%1.62M shares
Otherremainder≈ 19.77%5.85M shares

29.59M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

This company has 2 share classes; every stake here is a share of the whole company.

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
Barclays PLCStrategic
5.49%1.62M13Gfiled Nov 12, 2025 ↗
Hudson Bay Capital Management LPInstitution
5.14%1.52M A13Fas of Mar 31, 2026
Meteora Capital, LLCInstitution
4.12%1.22M A13Fas of Mar 31, 2026
Glazer Capital, LLCInstitution
4.04%1.20M A13Fas of Mar 31, 2026
Westchester Capital Management, LLCInstitution
4.01%1.19M A13Fas of Mar 31, 2026
AQR Arbitrage LLCInstitution
3.93%1.16M A13Fas of Mar 31, 2026
Linden Advisors LPInstitution
3.89%1.15M A13Fas of Mar 31, 2026
D. E. Shaw & Co., Inc.Institution
3.85%1.14M A13Fas of Mar 31, 2026
Wolverine Asset Management LLCInstitution
3.55%1.05M A13Fas of Mar 31, 2026
Polar Asset Management Partners Inc.Institution
3.46%1.03M A13Fas of Mar 31, 2026
Mizuho Securities USA LLCInstitution
2.42%714,774 A13Fas of Mar 31, 2026
Heights Capital Management, IncInstitution
2.37%700,000 A13Fas of Mar 31, 2026
Radcliffe Capital Management, L.P.Institution
2.28%675,001 A13Fas of Mar 31, 2026
Mint Tower Capital Management B.V.Institution
2.20%650,000 A13Fas of Mar 31, 2026
Magnetar Financial LLCInstitution
2.03%600,000 A13Fas of Mar 31, 2026
Tenor Capital Management Co., L.P.Institution
2.03%600,000 A13Fas of Mar 31, 2026
First Trust Capital Management L.P.Institution
1.90%562,500 A13Fas of Mar 31, 2026
Two Sigma Investments, LPInstitution
1.60%474,821 A13Fas of Mar 31, 2026
LMR Partners LLPInstitution
1.50%443,751 A13Fas of Mar 31, 2026
Berkley W R CorpInstitution
1.45%430,362 A13Fas of Mar 31, 2026
Bulldog Investors, LLPInstitution
1.38%408,760 A13Fas of Mar 31, 2026
Wealthspring Capital LLCInstitution
1.35%400,333 A13Fas of Mar 31, 2026
Picton Mahoney Asset ManagementInstitution
1.35%400,000 A13Fas of Mar 31, 2026
Toronto Dominion BankInstitution
1.35%400,000 A13Fas of Mar 31, 2026
Verition Fund Management LLCInstitution
1.27%374,737 A13Fas of Mar 31, 2026

13F — a manager's quarterly holdings · 13D/13G — an ownership statement filed at 5% or more

Institutions13F, as of Mar 31, 2026

47 holders · 22.12M shares · 6 new positions · 14 increased · 11 reduced · 1 closed

HolderShares% of companyChg q/qFiled
Hudson Bay Capital Management LP1.52M5.14%+32.2KMay 13, 2026
Meteora Capital, LLC1.22M4.12%+449.3KMay 15, 2026
Glazer Capital, LLC1.20M4.04%−10.1KMay 14, 2026
Westchester Capital Management, LLC1.19M4.01%0May 15, 2026
AQR Arbitrage LLC1.16M3.93%−54.2KMay 15, 2026
Linden Advisors LP1.15M3.89%0May 15, 2026
D. E. Shaw & Co., Inc.1.14M3.85%0May 15, 2026
Wolverine Asset Management LLC1.05M3.55%+66.5KMay 4, 2026

Ownership statements13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Barclays PLC6.80%1.62M13GNov 12, 2025 ↗
HGC Investment Management Inc6.29%1.50M13GFeb 14, 2025 ↗
Harraden Circle Investments, LLCincl. Harraden Circle Investors, LP, Harraden Circle Investors GP, LLC +3 more6.29%1.50M13GDec 16, 2024 ↗
Hudson Bay Capital Management LP5.61%1.34M13GAug 8, 2025 ↗
Glazer Capital, LLC5.14%1.22M13GAug 14, 2025 ↗
Meteora Capital, LLC5.11%1.22M13GMay 15, 2026 ↗

Insider tradesForm 4

Latest trades

Nothing filed in the last 12 months.

CongressHouse and Senate disclosures

Not reported.