SEC 13F Intelligence

JACKSON ACQUISITION CO II

CUSIP G4992A136

Jackson Acquisition Co II has 38 institutional holders in Filings Flow’s 13F database, together reporting 21.35M shares worth $3M as of Q1 2026. The largest reported holders are Harraden Circle Investments, LLC, Polar Asset Management Partners Inc., and Linden Advisors LP.

Institutional Holders
37
Q1 2026
Reported Value
$3M
Ticker
unmapped
private placement or foreign
Quarters Tracked
5

Ownership Trend

Institutional holders
Q1 ’25: 31Q1 ’25Q2 ’25: 38Q2 ’25Q3 ’25: 38Q3 ’25Q4 ’25: 39Q4 ’25Q1 ’26: 37Q1 ’26filingsflow.com
Total reported value
Q1 ’25: $4MQ1 ’25Q2 ’25: $6MQ2 ’25Q3 ’25: $6MQ3 ’25Q4 ’25: $5MQ4 ’25Q1 ’26: $3MQ1 ’26filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
Harraden Circle Investments, LLC$499M AUM0.07%$360,3843.12MQ1 2026
HGC Investment Management Inc.$451M AUM0.04%$165,3811.43MQ1 2026
HEIGHTS CAPITAL MANAGEMENT, INC$359M AUM0.02%$80,885700.0KQ1 2026
METEORA CAPITAL, LLC$1.4B AUM0.01%$160,922643.7KQ1 2026
Wealthspring Capital LLC$421M AUM0.01%$42,285418.7KQ1 2026
GABELLI & Co INVESTMENT ADVISERS, INC.$674M AUM0.01%$47,257408.8KQ1 2026
PERISCOPE CAPITAL INC.$902M AUM0.01%$48,263275.0KQ1 2026
Polar Asset Management Partners Inc.$5.0B AUM0.01%$267,6381.52MQ1 2026
MMCAP International Inc. SPC$1.2B AUM0.00%$57,800500.0KQ1 2026
Yakira Capital Management, Inc.$342M AUM0.00%$13,639118.0KQ1 2026
Westchester Capital Management, LLC$2.2B AUM0.00%$85,850850.0KQ1 2026
Bulldog Investors, LLP$445M AUM0.00%$14,940147.9KQ1 2026
Shaolin Capital Management LLC$2.7B AUM0.00%$82,531713.9KQ1 2026
RIVERNORTH CAPITAL MANAGEMENT, LLC$2.0B AUM0.00%$46,190399.7KQ1 2026
AQR Arbitrage LLC$6.1B AUM0.00%$139,7381.21MQ1 2026
LINDEN ADVISORS LP$17.9B AUM0.00%$228,1501.30MQ1 2026
Magnetar Financial LLC$9.8B AUM0.00%$105,300600.0KQ1 2026
K2 PRINCIPAL FUND, L.P.$1.4B AUM0.00%$13,600136.0KQ1 2026
DLD Asset Management, LP$1.1B AUM0.00%$9,49482.2KQ1 2026
HIGHBRIDGE CAPITAL MANAGEMENT LLC$3.1B AUM0.00%$26,308227.6KQ1 2026
TENOR CAPITAL MANAGEMENT Co., L.P.$6.5B AUM0.00%$46,220400.0KQ1 2026
Verition Fund Management LLC$15.4B AUM0.00%$79,933691.5KQ1 2026
StoneX Group Inc.$1.9B AUM0.00%$10,90345.4KQ4 2025OLDER
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS$19.6B AUM0.00%$87,750500.0KQ1 2026
Hudson Bay Capital Management LP$29.0B AUM0.00%$109,820950.0KQ1 2026
PICTON MAHONEY ASSET MANAGEMENT$13.5B AUM0.00%$46,240400.0KQ1 2026
Sculptor Capital LP$9.6B AUM0.00%$28,378161.7KQ1 2026
CLEAR STREET LLC$25.1B AUM0.00%$72,202257.9KQ2 2025OLDER
WHITEBOX ADVISORS LLC$8.1B AUM0.00%$20,230175.0KQ1 2026
GABELLI FUNDS LLC$14.8B AUM0.00%$32,239278.9KQ1 2026
Clear Street Group Inc.$24.6B AUM0.00%$30,037259.8KQ1 2026
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$62.2B AUM0.00%$75,140650.0KQ1 2026
MIZUHO SECURITIES USA LLC$4.2B AUM0.00%$7,28036.4KQ4 2025OLDER
LMR Partners LLP$45.4B AUM0.00%$51,298443.8KQ1 2026
TORONTO DOMINION BANK$69.7B AUM0.00%$23,212200.1KQ1 2026
BNP PARIBAS FINANCIAL MARKETS$205.8B AUM0.00%$63,036360.2KQ1 2026
Parallax Volatility Advisers, L.P.$38.6B AUM0.00%$13,00050.0KQ3 2025OLDER
Schonfeld Strategic Advisors LLC$14.2B AUM0.00%$2,75010.0KQ2 2025OLDER
D. E. Shaw & Co., Inc.$166.3B AUM0.00%$28,888250.0KQ1 2026

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.