Vault-13

JACKSON ACQUISITION CO II JACS

COM SHS CL A · Common Stock · CUSIP G4992A110

48 institutional holders +1 vs Q1 2026
22,848,88222.8m shares reported held*
$243.0mreported value*
3 new 8 added 9 reduced 2 sold out net bought ≈ $7.8m (+733.5k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $10.63.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q1 25: 35Q2 25: 43Q3 25: 42Q4 25: 42Q1 26: 47Q2 26: 4848Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q1 202535
Q2 202543
Q3 202542
Q4 202542
Q1 202647
Q2 202648

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q2 25: 24 bought or addedQ2 25: 10 cut or sold outQ2 25Q3 25: 12 bought or addedQ3 25: 12 cut or sold outQ3 25Q4 25: 7 bought or addedQ4 25: 10 cut or sold outQ4 25Q1 26: 13 bought or addedQ1 26: 11 cut or sold outQ1 26Q2 26: 11 bought or addedQ2 26: 11 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q2 20252410
Q3 20251212
Q4 2025710
Q1 20261311
Q2 20261111

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$10k$20k$30kQ3 25 calls: $26.5kQ3 25 puts: $0Q3 25P/C 0.00Q4 25 calls: $0Q4 25 puts: $0Q4 25P/C —Q1 26 calls: $0Q1 26 puts: $0Q1 26P/C —Q2 26 calls: $0Q2 26 puts: $0Q2 26P/C —
Numbers
QuarterCallsPutsP/C
Q3 2025$26.5k$00.00
Q4 2025$0$0—
Q1 2026$0$0—
Q2 2026$0$0—

Biggest buyers

MIZUHO SECURITIES USA LLC Added +905,335+905.3k
HIGHBRIDGE CAPITAL MANAGEMENT LLC Added +745,838+745.8k
BERKLEY W R CORP Added +497,474+497.5k
Periscope Capital Inc. Added +50,000+50.0k
StoneX Group Inc. New +15,017+15.0k
SUSQUEHANNA INTERNATIONAL GROUP, LLP New +12,640+12.6k
AQR Arbitrage LLC Added +5,064+5.1k
Schonfeld Strategic Advisors LLC Added +3,277+3.3k
Arax Advisory Partners New +2,750+2.8k
Verition Fund Management LLC Added +1,209+1.2k

Biggest sellers

Meteora Capital, LLC Reduced -691,632-691.6k
TORONTO DOMINION BANK Sold out -400,000-400.0k
Bulldog Investors, LLP Reduced -216,731-216.7k
Shaolin Capital Management LLC Reduced -116,310-116.3k
CSS LLC/IL Sold out -35,424-35.4k
GABELLI FUNDS LLC Reduced -25,000-25.0k
Crossingbridge Advisors, LLC Reduced -15,017-15.0k
Wealthspring Capital LLC Reduced -2,550-2.5k
WOLVERINE ASSET MANAGEMENT LLC Reduced -2,001-2.0k
Clear Street Group Inc. Reduced -800-800

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BARCLAYS PLC 13G · institution +1.1 pts · filed 2025-11-12 6.8% +1.1 pts 1.6m≈ $17.3m 2025-11-12
HGC Investment Management Inc. 13G · institution new · filed 2026-02-17 6.2% new 1.5m≈ $15.7m 2026-02-17
Hudson Bay Capital Management LP 13G · institution new · filed 2025-08-08 5.6% new 1.3m≈ $14.2m 2025-08-08
GLAZER CAPITAL, LLC 13G · institution new · filed 2025-08-14 5.1% new 1.2m≈ $13.0m 2025-08-14

Fell to 5% or below in the last year: METEORA CAPITAL, LLC (2.2%, 2026-08-14), AQR CAPITAL MANAGEMENT LLC (4.9%, 2026-05-12), GOLDMAN SACHS GROUP INC (3.1%, 2026-05-11)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 MIZUHO SECURITIES USA LLC 0.16% of their portfolio NEW YORK, NY 1,620,1091.6m $17.1m $17.1m 0.16% Added +905.3k +905,335
2 Hudson Bay Capital Management LP 0.08% of their portfolio STAMFORD, CT 1,520,5051.5m $16.2m $16.2m 0.08% Unchanged
3 GLAZER CAPITAL, LLC 0.31% of their portfolio New York, NY 1,196,1821.2m $12.7m $12.7m 0.31% Added +532 +532
4 Westchester Capital Management, LLC 0.63% of their portfolio VALHALLA, NY 1,186,2001.2m $12.6m $12.6m 0.63% Unchanged
5 AQR Arbitrage LLC 0.18% of their portfolio Greenwich, CT 1,167,6261.2m $12.4m $12.4m 0.18% Added +5.1k +5,064
6 Linden Advisors LP 0.06% of their portfolio New York, NY 1,150,0001.1m $12.2m $12.2m 0.06% Unchanged
7 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 1,138,5001.1m $12.1m $12.1m 0.01% Unchanged
8 WOLVERINE ASSET MANAGEMENT LLC 0.15% of their portfolio CHICAGO, IL 1,048,1311.0m $11.2m $11.2m 0.15% Reduced -2.0k -2,001
9 Polar Asset Management Partners Inc. 0.20% of their portfolio TORONTO, A6 1,025,0001.0m $10.9m $10.9m 0.20% Unchanged
10 BERKLEY W R CORP 0.48% of their portfolio Greenwich, CT 927,836927.8k $9.9m $9.9m 0.48% Added +497.5k +497,474
11 HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.32% of their portfolio NEW YORK, NY 867,662867.7k $9.2m $9.2m 0.32% Added +745.8k +745,838
12 HEIGHTS CAPITAL MANAGEMENT, INC 1.72% of their portfolio SAN FRANCISCO, CA 700,000700.0k $7.4m $7.4m 1.72% Unchanged
13 Radcliffe Capital Management, L.P. 0.55% of their portfolio BALA CYNWYD, PA 675,001675.0k $7.2m $7.2m 0.55% Unchanged
14 Mint Tower Capital Management B.V. 0.82% of their portfolio AMSTERDAM, P7 650,000650.0k $6.9m $6.9m 0.82% Unchanged
15 TENOR CAPITAL MANAGEMENT Co., L.P. 0.09% of their portfolio NEW YORK, NY 600,000600.0k $6.4m $6.4m 0.09% Unchanged
16 Magnetar Financial LLC 0.06% of their portfolio EVANSTON, IL 600,000600.0k $6.4m $6.4m 0.06% Unchanged
17 First Trust Capital Management L.P. 0.35% of their portfolio CHICAGO, IL 562,500562.5k $6.0m $6.0m 0.35% Unchanged
18 Meteora Capital, LLC 0.47% of their portfolio Boca Raton, FL 528,112528.1k $5.6m $5.6m 0.47% Reduced -691.6k -691,632
19 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 474,821474.8k $5.1m $5.1m 0.00% Unchanged
20 LMR Partners LLP 0.03% of their portfolio LONDON, X0 443,751443.8k $4.7m $4.7m 0.03% Unchanged
21 PICTON MAHONEY ASSET MANAGEMENT 0.04% of their portfolio Toronto, A6 400,000400.0k $4.3m $4.3m 0.04% Unchanged
22 Wealthspring Capital LLC 0.95% of their portfolio WEST HARRISON, NY 397,783397.8k $4.2m $4.2m 0.95% Reduced -2.5k -2,550
23 Verition Fund Management LLC 0.03% of their portfolio GREENWICH, CT 375,946375.9k $4.0m $4.0m 0.03% Added +1.2k +1,209
24 Periscope Capital Inc. 0.63% of their portfolio Toronto, A6 375,000375.0k $4.0m $4.0m 0.63% Added +50.0k +50,000
25 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 360,208360.2k $3.8m $3.8m 0.00% Unchanged
26 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.18% of their portfolio WEST PALM BEACH, FL 359,329359.3k $3.8m $3.8m 0.18% Reduced -184 -184
27 Crossingbridge Advisors, LLC 0.59% of their portfolio PLEASANTVILLE, NY 312,381312.4k $3.3m $3.3m 0.59% Reduced -15.0k -15,017
28 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.02% of their portfolio HARRISBURG, PA 300,000300.0k $3.2m $3.2m 0.02% Unchanged
29 MANGROVE PARTNERS IM, LLC 0.20% of their portfolio Greenwich, CT 280,470280.5k $3.0m $3.0m 0.20% Unchanged
30 GABELLI & Co INVESTMENT ADVISERS, INC. 0.34% of their portfolio Rye, NY 220,100220.1k $2.3m $2.3m 0.34% Unchanged
31 SONA ASSET MANAGEMENT (US) LLC 0.08% of their portfolio NEW YORK, NY 206,468206.5k $2.2m $2.2m 0.08% Unchanged
32 Bulldog Investors, LLP 0.45% of their portfolio SADDLE BROOK, NJ 192,029192.0k $2.0m $2.0m 0.45% Reduced -216.7k -216,731
33 WHITEBOX ADVISORS LLC 0.03% of their portfolio MINNEAPOLIS, MN 175,000175.0k $1.9m $1.9m 0.03% Unchanged
34 Yakira Capital Management, Inc. 0.46% of their portfolio Westport, CT 147,541147.5k $1.6m $1.6m 0.46% Unchanged
35 Shaolin Capital Management LLC 0.08% of their portfolio Miami, FL 133,696133.7k $1.4m $1.4m 0.08% Reduced -116.3k -116,310
36 GABELLI FUNDS LLC 0.01% of their portfolio Rye, NY 129,900129.9k $1.4m $1.4m 0.01% Reduced -25.0k -25,000
37 O'Connor Alternative Investments LLC 0.08% of their portfolio NEW YORK, NY 100,000100.0k $1.1m $1.1m 0.08% Unchanged
38 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 50,22950.2k $534.4k $534.4k 0.00% Unchanged
39 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 50,00050.0k $532.5k $532.5k 0.00% Unchanged
40 READYSTATE ASSET MANAGEMENT LP 0.02% of their portfolio CHICAGO, IL 50,00050.0k $532.0k $532.0k 0.02% Unchanged
41 DELTEC ASSET MANAGEMENT LLC 0.06% of their portfolio New York, NY 40,00040.0k $425.6k $425.6k 0.06% Unchanged
42 Schonfeld Strategic Advisors LLC 0.00% of their portfolio NEW YORK, NY 33,25933.3k $353.9k $353.9k 0.00% Added +3.3k +3,277
43 HGC Investment Management Inc. 0.05% of their portfolio TORONTO, A6 25,00025.0k $266.0k $266.0k 0.05% Unchanged
44 StoneX Group Inc. 0.01% of their portfolio NEW YORK, NY 15,01715.0k $159.8k $159.8k 0.01% New
45 ABC ARBITRAGE SA 0.02% of their portfolio PARIS, I0 15,00015.0k $159.6k $159.6k 0.02% Unchanged
46 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 12,64012.6k $134.5k $134.5k 0.00% New
47 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 7,2007.2k $76.6k $76.6k 0.00% Reduced -800 -800
48 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 2,7502.8k $29.3k $29.3k 0.00% New