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Jackson Acquisition Co II

JACS
Exchange
NYSE
Industry
Blank Checks
SEC CIK
0002039058

No open-market purchases or sales by Jackson Acquisition Co II insiders were filed in the last 90 days; 48 institutions reported holding it in 13F filings for Q2 2026, worth $235.5M in total; no superinvestor holds it.

Other share classesJACS.RIJACS.UN

13F holders, Q3 2025

Institutional positions in Jackson Acquisition Co II as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
42
+1 vs. Q2 2025
Shares held
22.1M
+516.5K (+2.4%) vs. Q2 2025
Total value
$229.1M
+$7.12M (+3.2%) vs. Q2 2025
New holders
5
8 more added
Sold out
4
8 more reduced

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting JACS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 42 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 34 institutionsQ2 2025: 42 institutionsQ3 2025: 42 institutionsQ4 2025: 42 institutionsQ1 2026: 47 institutionsQ2 2026: 48 institutions
Value heldQ3 2025: $229.1M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $165.7MQ2 2025: $222.0MQ3 2025: $229.1MQ4 2025: $230.1MQ1 2026: $234.0MQ2 2026: $235.5M
Institutions holding JACS and their total value by quarter
QuarterHoldersValue
Q2 202648$235.5M
Q1 202647$234.0M
Q4 202542$230.1M
Q3 202542$229.1M
Q2 202542$222.0M
Q1 202534$165.7M
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Jackson Acquisition Co II; share changes are against Q2 2025.

Institutions holding JACS in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Clear Street Group Inc.8,000$83.0K0.00%+8,000New
Schonfeld Strategic Advisors LLC29,982$311.2K0.00%−26,653−47.1%Reduced
Deltec Asset Management LLC40,000$415.2K0.07%00.0%Unchanged
Readystate Asset Management LP50,000$519.0K0.03%+50,000New
Cantor Fitzgerald, L. P.87,630$909.6K0.02%+87,630New
UBS Oconnor LLC100,000$1.04M0.03%00.0%Unchanged
BCK Capital Management LP103,311$1.07M1.14%+3,311+3.3%Added
Mizuho Securities USA LLC115,946$1.20M0.02%−134,054−53.6%Reduced
Verition Fund Management LLC149,927$1.56M0.01%−730.0%Reduced
Shaolin Capital Management LLC150,000$1.56M0.07%−217,000−59.1%Reduced
Yakira Capital Management, Inc.150,000$1.56M0.58%00.0%Unchanged
Toronto Dominion Bank150,000$1.56M0.00%+22,748+17.9%Added
Gabelli Funds LLC154,900$1.61M0.01%00.0%Unchanged
Whitebox Advisors LLC175,000$1.82M0.03%00.0%Unchanged
Gabelli & Co Investment Advisers, Inc.220,100$2.28M0.37%00.0%Unchanged
Mangrove Partners280,470$2.91M0.24%+280,470New
Berkley W R Corp346,265$3.59M0.23%00.0%Unchanged
Goldman Sachs Group Inc360,208$3.74M0.00%00.0%Unchanged
Rivernorth Capital Management, LLC399,744$4.15M0.24%+399,744New
Picton Mahoney Asset Management400,000$4.15M0.05%00.0%Unchanged
Wealthspring Capital LLC400,333$4.16M0.99%−6,150−1.5%Reduced
Bulldog Investors, LLP412,874$4.29M0.99%−3,652−0.9%Reduced
LMR Partners LLP443,751$4.61M0.06%00.0%Unchanged
Periscope Capital Inc.450,000$4.67M1.14%+125,000+38.5%Added
Two Sigma Investments, LP474,821$4.93M0.01%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys500,000$5.19M0.03%00.0%Unchanged
Radcliffe Capital Management, L.P.512,173$5.32M0.33%−24,927−4.6%Reduced
Vivaldi Asset Management, LLC567,500$5.89M0.38%00.0%Unchanged
Tenor Capital Management Co., L.P.600,000$6.23M0.08%00.0%Unchanged
Magnetar Financial LLC600,000$6.23M0.04%00.0%Unchanged
Mint Tower Capital Management B.V.650,000$6.75M0.87%00.0%Unchanged
Heights Capital Management, Inc700,000$7.27M2.31%00.0%Unchanged
Wolverine Asset Management LLC987,487$10.3M0.15%+361,165+57.7%Added
Polar Asset Management Partners Inc.1,025,000$10.6M0.22%00.0%Unchanged
D. E. Shaw & Co., Inc.1,138,500$11.8M0.01%+250,500+28.2%Added
Linden Advisors LP1,150,000$11.9M0.08%+350,000+43.8%Added
Westchester Capital Management, LLC1,186,200$12.3M0.64%00.0%Unchanged
CNH Partners LLC1,216,792$12.6M0.32%−3,000−0.2%Reduced
Glazer Capital, LLC1,229,465$12.8M0.43%+5,001+0.4%Added
Hudson Bay Capital Management LP1,338,300$13.9M0.08%00.0%Unchanged
Meteora Capital, LLC1,439,593$14.9M1.58%+221,979+18.2%Added
HGC Investment Management Inc.1,575,200$16.4M3.98%00.0%Unchanged
Sculptor Capital LP0$00.00%−717,200−100.0%Sold out
Centiva Capital, LP0$00.00%−387,912−100.0%Sold out
StoneX Group Inc.0$00.00%−99,971−100.0%Sold out
Virtu Financial LLC0$00.00%−28,407−100.0%Sold out
Clear Street LLC––––Not filed