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IRAB

Iris Acquisition Corp II
IRAB

32 hedge funds and large institutions have $106M invested in Iris Acquisition Corp II in 2026 Q1 according to their latest regulatory filings, with 32 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

62.65% more ownership

Funds ownership: 0% → 62.65% (+63%)

Holders
32
Holders Change
+32
Holders Change %
–
% of All Funds
0.39%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
32
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$13.3M
2
TCM
Tenor Capital Management
New York
+$9.84M
3
SAMU
SONA Asset Management (US)
New York
+$8.37M
4
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
+$7.88M
5
LA
Linden Advisors
New York
+$7.88M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
Adage Capital Partners
1
Adage Capital Partners
Massachusetts
$13.3M +$13.3M +1,350,000 New
TCM
2
Tenor Capital Management
New York
$9.82M +$9.84M +1,000,000 New
SAMU
3
SONA Asset Management (US)
New York
$8.35M +$8.37M +850,000 New
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
4
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$7.86M +$7.88M +800,000 New
LA
5
Linden Advisors
New York
$7.86M +$7.88M +800,000 New
AA
6
AQR Arbitrage
Connecticut
$5.68M +$5.69M +578,464 New
BNP Paribas Financial Markets
7
BNP Paribas Financial Markets
France
$5.37M +$5.38M +546,532 New
D.E. Shaw & Co
8
D.E. Shaw & Co
New York
$4.13M +$4.14M +420,600 New
SCM
9
Shaolin Capital Management
Florida
$3.93M +$3.94M +400,000 New
FTCM
10
First Trust Capital Management
Illinois
$3.93M +$3.94M +399,998 New
WA
11
Whitebox Advisors
Minnesota
$3.68M +$3.69M +375,200 New
RCM
12
Radcliffe Capital Management
Pennsylvania
$2.94M +$2.95M +299,570 New
Two Sigma Investments
13
Two Sigma Investments
New York
$2.67M +$2.68M +271,875 New
CC
14
Centiva Capital
New York
$2.46M +$2.47M +250,700 New
CCM
15
Context Capital Management
California
$2.46M +$2.46M +250,000 New
HIM
16
HGC Investment Management
Ontario, Canada
$2.46M +$2.46M +250,000 New
PC
17
Periscope Capital
Ontario, Canada
$2.37M +$2.37M +241,000 New
LPC
18
Lineage Point Capital
Florida
$2.16M +$2.17M +220,000 New
GCL
19
Glazer Capital LLC
New York
$1.99M +$1.99M +202,310 New
RCM
20
Rivernorth Capital Management
Florida
$1.96M +$1.97M +200,000 New
Verition Fund Management
21
Verition Fund Management
Connecticut
$1.96M +$1.97M +200,000 New
WRBC
22
W.R. Berkley Corp
Connecticut
$1.95M +$1.96M +198,960 New
MTCM
23
Mint Tower Capital Management
Netherlands
$1.47M +$1.48M +150,000 New
PAMP
24
Polar Asset Management Partners
Ontario, Canada
$983K +$984K +100,000 New
KC
25
Kepos Capital
New York
$982K +$984K +100,000 New
1
2

IRAB Hedge Fund Activity: Q1 2026 in Review

32 of the 8,134 institutional investors tracked by Wall St. Rank reported a position in Iris Acquisition Corp II (IRAB) for Q1 2026, worth a combined $106M.

Buyers outnumbered sellers: 32 funds opened new IRAB positions and 0 closed out — a net gain of 32 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Adage Capital Partners, opening a new position worth an estimated $13.3M.

  • 32 institutional investors held Iris Acquisition Corp II (IRAB) as of Q1 2026, up from 0 in Q4 2025.
  • Funds reported $106M of Iris Acquisition Corp II stock for Q1 2026.
  • 32 funds opened new Iris Acquisition Corp II positions in Q1 2026 and 0 closed out, a net change of +32 holders.
  • The largest Iris Acquisition Corp II buyer in Q1 2026 was Adage Capital Partners, an estimated $13.3M added.

Based on aggregated 13F filings for Q1 2026.