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IRAB.U

Iris Acquisition Corp II Units
IRAB.U

17 hedge funds and large institutions have $51.5M invested in Iris Acquisition Corp II Units in 2026 Q1 according to their latest regulatory filings, with 17 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
17
Holders Change
+17
Holders Change %
–
% of All Funds
0.21%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
17
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
AC
Aristeia Capital
Connecticut
+$11.5M
2
LP
LMR Partners
United Kingdom
+$7.47M
3
MF
Magnetar Financial
Illinois
+$5.98M
4
MI
MMCAP International
Cayman Islands
+$5.98M
5
Millennium Management
Millennium Management
New York
+$4.23M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
AC
1
Aristeia Capital
Connecticut
$11.5M +$11.5M +1,152,750 New
LP
2
LMR Partners
United Kingdom
$7.47M +$7.47M +750,000 New
MF
3
Magnetar Financial
Illinois
$5.98M +$5.98M +600,000 New
MI
4
MMCAP International
Cayman Islands
$5.98M +$5.98M +600,000 New
Millennium Management
5
Millennium Management
New York
$4.23M +$4.23M +425,000 New
AIMCA
6
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$3.98M +$3.98M +400,000 New
CA
7
Crossingbridge Advisors
New York
$3.49M +$3.49M +350,000 New
CCC
8
Cable Car Capital
California
$2.24M +$2.24M +225,000 New
HCM
9
Heights Capital Management
California
$1.84M +$1.84M +185,000 New
PMAM
10
Picton Mahoney Asset Management
Ontario, Canada
$1.74M +$1.74M +175,000 New
CS
11
Clear Street
New York
$800K +$800K +80,358 New
Toronto Dominion Bank
12
Toronto Dominion Bank
Ontario, Canada
$747K +$747K +75,000 New
GCL
13
Glazer Capital LLC
New York
$460K +$460K +46,218 New
JP Morgan Chase
14
JP Morgan Chase
New York
$398K +$398K +40,000 New
HF
15
HRT Financial
New York
$250K +$251K +25,166 New
CL
16
CSS LLC
Illinois
$249K +$249K +25,000 New
VF
17
Virtu Financial
New York
$162K +$162K +16,219 New

IRAB.U Hedge Fund Activity: Q1 2026 in Review

17 of the 8,172 institutional investors tracked by Wall St. Rank reported a position in Iris Acquisition Corp II Units (IRAB.U) for Q1 2026, worth a combined $51.5M.

Buyers outnumbered sellers: 17 funds opened new IRAB.U positions and 0 closed out — a net gain of 17 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Aristeia Capital, opening a new position worth an estimated $11.5M.

  • 17 institutional investors held Iris Acquisition Corp II Units (IRAB.U) as of Q1 2026, up from 0 in Q4 2025.
  • Funds reported $51.5M of Iris Acquisition Corp II Units stock for Q1 2026.
  • 17 funds opened new Iris Acquisition Corp II Units positions in Q1 2026 and 0 closed out, a net change of +17 holders.
  • The largest Iris Acquisition Corp II Units buyer in Q1 2026 was Aristeia Capital, an estimated $11.5M added.

Based on aggregated 13F filings for Q1 2026.