HolderBook

IRIS ACQUISITION CORP II (IRAB)

Institutional ownership reported to the SEC as of Q2 2026, across 2 quarters.

39
Reporting holders
$146.0M
Reported value
0.0%
Held as options
+11
Holder change

Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.

Holders

FilerValueShares Their book Held Change
ADAGE CAPITAL PARTNERS GP, L.L.C.$13.4M1,350,0000.02%2qHELD
ARISTEIA CAPITAL, L.L.C.$11.5M1,159,8280.15%newNEW
TENOR CAPITAL MANAGEMENT Co., L.P.$9.9M1,000,0000.14%2qHELD
SONA ASSET MANAGEMENT (US) LLC$8.4M850,0000.18%2qHELD
Linden Advisors LP$7.9M800,0000.04%2qHELD
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$7.9M800,0000.01%2qHELD
Magnetar Financial LLC$6.0M600,0000.05%newNEW
MMCAP International Inc. SPC$6.0M600,0000.51%newNEW
AQR Arbitrage LLC$5.8M584,9640.08%2q+1.1%+$64.5K
BNP PARIBAS FINANCIAL MARKETS$5.4M546,5320.00%2qHELD
MILLENNIUM MANAGEMENT LLC$4.2M425,0000.00%newNEW
D. E. Shaw & Co., Inc.$4.2M420,6010.00%2qHELD
Verition Fund Management LLC$4.0M400,0000.01%2q+100.0%+$2.0M
Alberta Investment Management Corp$4.0M400,0000.02%newNEW
First Trust Capital Management L.P.$4.0M399,9980.23%2qHELD
WHITEBOX ADVISORS LLC$3.7M375,2000.05%2qHELD
Crossingbridge Advisors, LLC$3.5M350,0000.61%newNEW
Radcliffe Capital Management, L.P.$3.0M299,5700.23%2qHELD
TWO SIGMA INVESTMENTS, LP$2.7M271,8750.00%2qHELD
Centiva Capital, LP$2.5M250,7000.02%2qHELD
Context Capital Management, LLC$2.5M250,0000.05%2qHELD
HGC Investment Management Inc.$2.5M250,0000.49%2qHELD
Periscope Capital Inc.$2.4M241,0000.21%2qHELD
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS$2.3M229,6620.01%2q+188.3%+$1.5M
Cable Car Capital, LP$2.2M225,0000.05%newNEW
Lineage Point Capital LP$2.2M220,0000.45%2qHELD
Shaolin Capital Management LLC$2.0M200,7790.10%2q-49.8%-$2.0M
BERKLEY W R CORP$2.0M198,9600.09%2qHELD
RIVERNORTH CAPITAL MANAGEMENT, LLC$2.0M200,0000.09%2qHELD
HEIGHTS CAPITAL MANAGEMENT, INC$1.8M185,0000.42%newNEW
PICTON MAHONEY ASSET MANAGEMENT$1.7M175,0000.01%newNEW
Polar Asset Management Partners Inc.$993.0K100,0000.02%2qHELD
Hudson Bay Capital Management LP$982.5K98,9380.00%2qHELD
WOLVERINE ASSET MANAGEMENT LLC$645.9K65,0470.01%newNEW
MOORE CAPITAL MANAGEMENT, LP$496.5K50,0000.01%2qHELD
MIZUHO SECURITIES USA LLC$492.5K50,0000.00%newNEW
Clear Street Group Inc.$305.4K30,7560.00%2q-67.7%-$641.5K
CSS LLC/IL$248.2K25,0000.01%newNEW
Schonfeld Strategic Advisors LLC$148.9K15,0000.00%2qHELD
GLAZER CAPITAL, LLC$2.0K206,3210.05%2q+2.0%
Mint Tower Capital Management B.V.$1.5K150,0000.17%2qHELD
Kepos Capital LP$993100,0001.35%2qHELD
Virtu Financial LLC$14814,8700.00%2q-43.0%

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-08-1213G/ATHE GOLDMAN SACHS GROUP, INC. SPACwith 1 co-filers1.2%

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 202639$146.0M14,694,41012320.0%
Q1 202628$101.7M10,351,74028000.0%