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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, Q2 2026

Institutional positions in Jackson Acquisition Co II as of Jun 30, 2026. 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
48
+1 vs. Q1 2026
Shares held
22.1M
+18.7K (+0.1%) vs. Q1 2026
Total value
$235.5M
+$1.44M (+0.6%) vs. Q1 2026
New holders
3
8 more added
Sold out
2
9 more reduced

Compare with Q1 2026: 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 holdersQ2 2026: 48 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 heldQ2 2026: $235.5M
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, Q2 2026

Shares, value and share of portfolio for each institution holding Jackson Acquisition Co II; share changes are against Q1 2026.

Institutions holding JACS in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
SRS Capital Advisors, Inc.2,750$29.3K0.00%+2,750New
Clear Street Group Inc.7,200$76.6K0.00%−800−10.0%Reduced
Susquehanna International Group, LLP12,640$134.5K0.00%+12,640New
Abc Arbitrage SA15,000$159.6K0.02%00.0%Unchanged
StoneX Group Inc.15,017$159.8K0.01%+15,017New
HGC Investment Management Inc.25,000$266.0K0.05%00.0%Unchanged
Schonfeld Strategic Advisors LLC33,259$353.9K0.00%+3,277+10.9%Added
Deltec Asset Management LLC40,000$425.6K0.06%00.0%Unchanged
Readystate Asset Management LP50,000$532.0K0.02%00.0%Unchanged
JPMorgan Chase & Co50,000$532.5K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA50,229$534.4K0.00%00.0%Unchanged
O'Connor Alternative Investments LLC100,000$1.06M0.08%00.0%Unchanged
Gabelli Funds LLC129,900$1.38M0.01%−25,000−16.1%Reduced
Shaolin Capital Management LLC133,696$1.42M0.08%−116,310−46.5%Reduced
Yakira Capital Management, Inc.147,541$1.57M0.46%00.0%Unchanged
Whitebox Advisors LLC175,000$1.86M0.03%00.0%Unchanged
Bulldog Investors, LLP192,029$2.04M0.45%−216,731−53.0%Reduced
Sona Asset Management (US) LLC206,468$2.20M0.08%00.0%Unchanged
Gabelli & Co Investment Advisers, Inc.220,100$2.34M0.34%00.0%Unchanged
Mangrove Partners280,470$2.98M0.20%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys300,000$3.19M0.02%00.0%Unchanged
Crossingbridge Advisors, LLC312,381$3.32M0.59%−15,017−4.6%Reduced
Goldman Sachs Group Inc360,208$3.83M0.00%00.0%Unchanged
Rivernorth Capital Management, LLC359,329$3.85M0.18%−184−0.1%Reduced
Periscope Capital Inc.375,000$3.99M0.63%+50,000+15.4%Added
Verition Fund Management LLC375,946$4.00M0.03%+1,209+0.3%Added
Wealthspring Capital LLC397,783$4.23M0.95%−2,550−0.6%Reduced
Picton Mahoney Asset Management400,000$4.26M0.04%00.0%Unchanged
LMR Partners LLP443,751$4.72M0.03%00.0%Unchanged
Two Sigma Investments, LP474,821$5.05M0.00%00.0%Unchanged
Meteora Capital, LLC528,112$5.62M0.47%−691,632−56.7%Reduced
Vivaldi Asset Management, LLC562,500$5.99M0.35%00.0%Unchanged
Tenor Capital Management Co., L.P.600,000$6.38M0.09%00.0%Unchanged
Magnetar Financial LLC600,000$6.38M0.06%00.0%Unchanged
Mint Tower Capital Management B.V.650,000$6.92M0.82%00.0%Unchanged
Radcliffe Capital Management, L.P.675,001$7.18M0.55%00.0%Unchanged
Heights Capital Management, Inc700,000$7.45M1.72%00.0%Unchanged
Highbridge Capital Management LLC867,662$9.24M0.32%+745,838+612.2%Added
Mizuho Securities USA LLC905,335$9.57M0.15%+190,561+26.7%Added
Berkley W R Corp927,836$9.87M0.48%+497,474+115.6%Added
Polar Asset Management Partners Inc.1,025,000$10.9M0.20%00.0%Unchanged
Wolverine Asset Management LLC1,048,131$11.2M0.15%−2,001−0.2%Reduced
D. E. Shaw & Co., Inc.1,138,500$12.1M0.01%00.0%Unchanged
Linden Advisors LP1,150,000$12.2M0.06%00.0%Unchanged
CNH Partners LLC1,167,626$12.4M0.18%+5,064+0.4%Added
Westchester Capital Management, LLC1,186,200$12.6M0.63%00.0%Unchanged
Glazer Capital, LLC1,196,182$12.7M0.31%+5320.0%Added
Hudson Bay Capital Management LP1,520,505$16.2M0.08%00.0%Unchanged
Toronto Dominion Bank0$00.00%−400,000−100.0%Sold out
CSS LLC0$00.00%−35,424−100.0%Sold out