13F Insight
DOSSIER · 13F Holders · Q1 2026Mega-capCrowded

JACKSON ACQUISITION CO II

50 institutions still hold JACKSON ACQUISITION CO II as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G4992A110·50 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 3.6%
vs prior quarter
13F value held
$166M
48.0% inst. owned
of float
Holders
50
+19 QoQ
filers reporting
Activity
+8 / −73
+956 added · −830 reduced
this quarter
Concentration
9.70%
Hudson Bay Capital Management LP #1
top holder share
AI Holders Summary · Q1 2026

50 institutions reported JACKSON ACQUISITION CO II in Q1 2026. Hudson Bay Capital Management LP leads at 9.7% of the visible book. +19 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Hudson Bay Capital Management LP
CIK 0001393825
$16M1.5M0.06%Q1 202602
METEORA CAPITAL, LLC
CIK 0001905106
$13M1.2M0.95%Q1 202603
AQR Arbitrage LLC
CIK 0001167456
$13M1.2M0.27%Q4 202504
Westchester Capital Management, LLC
CIK 0001512805
$13M1.2M0.57%Q1 202605
LINDEN ADVISORS LP
CIK 0001279396
$12M1.1M0.07%Q1 202606
D. E. Shaw & Co., Inc.
CIK 0001009207
$12M1.1M0.01%Q4 202507
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$11M1.1M0.11%Q1 202608
Polar Asset Management Partners Inc.
CIK 0001326389
$11M1.0M0.22%Q1 202609
MIZUHO SECURITIES USA LLC
CIK 0000812291
$7M715K0.18%Q1 202610
HEIGHTS CAPITAL MANAGEMENT, INC
CIK 0001081698
$7M700K2.07%Q1 202611
Radcliffe Capital Management, L.P.
CIK 0001218275
$7M675K0.54%Q1 202612
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$6M600K0.10%Q1 202613
First Trust Capital Management L.P.
CIK 0001604488
$6M563K0.31%Q1 202614
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$5M475K0.00%Q1 202615
LMR Partners LLP
CIK 0001578621
$5M444K0.01%Q1 202616
BERKLEY W R CORP
CIK 0000011544
$5M430K0.24%Q1 202617
Bulldog Investors, LLP
CIK 0001504304
$4M409K0.97%Q1 202618
Wealthspring Capital LLC
CIK 0001844495
$4M400K1.01%Q1 202619
PICTON MAHONEY ASSET MANAGEMENT
CIK 0001539041
$4M400K0.03%Q1 202620
TORONTO DOMINION BANK
CIK 0000947263
$4M400K0.01%Q1 2026
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