Jackson Acquisition Company II
Jackson Acquisition Company II (JACS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · JACS · as of Sep 30, 2025
Ownership Breakdown
43
Institutional Holders
$229.08M
Total Inst. Value
▲ $7.04M vs Q2
29.59M
Shares Outstanding
freeFloat 99.37%
22.07M
13F Shares Held
▲ 508,549 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
JACS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
HGC INVESTMENT MANAGEMENT INC. blank checks | 1.58M | 5.32% | 5.32% | $16.35B | Nov 14, 2025 | — held |
METEORA CAPITAL, LLC blank checks | 1.44M | 4.87% | 4.87% | $14.94B | Nov 17, 2025 | ▲ 222.0K |
HUDSON BAY CAPITAL MANAGEMENT LP blank checks | 1.34M | 4.52% | 4.52% | $13.89B | Dec 15, 2025 | — held |
GLAZER CAPITAL, LLC blank checks | 1.23M | 4.16% | 4.16% | $12.76B | Nov 13, 2025 | ▲ 5.0K |
AQR ARBITRAGE LLC blank checks | 1.22M | 4.11% | 4.11% | $12.63B | Nov 14, 2025 | ▼ 3.0K |
WESTCHESTER CAPITAL MANAGEMENT, LLC blank checks | 1.19M | 4.01% | 4.01% | $12.31B | Nov 14, 2025 | — held |
LINDEN ADVISORS LP blank checks | 1.15M | 3.89% | 3.89% | $11.94B | Nov 14, 2025 | ▲ 350.0K |
D. E. SHAW & CO., INC. blank checks | 1.14M | 3.85% | 3.85% | $11.82B | Nov 14, 2025 | ▲ 250.5K |
POLAR ASSET MANAGEMENT PARTNERS INC. blank checks | 1.02M | 3.46% | 3.46% | $10.64B | Dec 1, 2025 | — held |
WOLVERINE ASSET MANAGEMENT LLC blank checks | 987.5K | 3.34% | 3.34% | $10.25B | Oct 28, 2025 | ▲ 361.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
8
Increased
+1.34M shares5
New Positions
first time holders9
Decreased
−617.2K shares4
Sold Out
fully exitedNet shares change (top 50)
+722.5K
+1.34M / −617.2K
Net new holders
+0
5 new / 4 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
JACS insider trading · insider activity
Source: SEC Form 4
Recent Insider Transactions
Showing 10 most recent · Common Stock only
No recent insider transactions reported.
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Jackson Acquisition Company II (JACS) is primarily owned by institutional investors, who hold approximately 74.6% of total shares outstanding. Company insiders own approximately 0.63%, while retail and public investors account for the remaining 24.79%.
The largest institutional shareholder of Jackson Acquisition Company II is HGC INVESTMENT MANAGEMENT INC., holding approximately 1.58 million shares — equal to 5.32% of outstanding shares — as of September 30, 2025.
A total of 43 institutional investors currently hold JACS stock, with a combined institutional value of approximately $229,077,711 as of the most recent 13F filing period.
Frequently asked questions
JACS ownershipJackson Acquisition Company II (JACS) is primarily owned by institutional investors, who hold approximately 74.6% of shares. The largest shareholder is HGC INVESTMENT MANAGEMENT INC. with a 5.32% stake. Company insiders hold 0.63%. Data sourced from SEC Form 13F as of September 30, 2025.