13F Insight
DOSSIER · 13F Holders · Q1 2026

IRIS ACQUISITION CORP II

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

CUSIP G4940M109·29 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$90M
visible holders
Holders
29
filers reporting
Concentration
14.80%
ADAGE CAPITAL PARTNERS GP, L.L.C. #1
top holder share
AI Holders Summary · Q1 2026

29 institutions reported IRIS ACQUISITION CORP II in Q1 2026. ADAGE CAPITAL PARTNERS GP, L.L.C. leads at 14.8% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$13M1.4M0.02%Q1 202602
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$10M1.0M0.15%Q1 202603
SONA ASSET MANAGEMENT (US) LLC
CIK 0001856405
$8M850K0.18%Q1 202604
LINDEN ADVISORS LP
CIK 0001279396
$8M800K0.04%Q1 202605
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
CIK 0001535845
$8M800K0.01%Q1 202606
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$5M547K0.00%Q1 202607
Shaolin Capital Management LLC
CIK 0001766806
$4M400K0.15%Q1 202608
First Trust Capital Management L.P.
CIK 0001604488
$4M400K0.21%Q1 202609
WHITEBOX ADVISORS LLC
CIK 0001257391
$4M375K0.05%Q1 202610
Radcliffe Capital Management, L.P.
CIK 0001218275
$3M300K0.22%Q1 202611
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$3M272K0.00%Q1 202612
Context Capital Management, LLC
CIK 0001301396
$2M250K0.05%Q2 202613
Centiva Capital, LP
CIK 0001692507
$2M251K0.02%Q1 202614
HGC Investment Management Inc.
CIK 0001711200
$2M250K0.54%Q1 202615
PERISCOPE CAPITAL INC.
CIK 0001695320
$2M241K0.26%Q1 202616
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS
CIK 0001083190
$2M230K0.01%Q2 202617
GLAZER CAPITAL, LLC
CIK 0001076809
$2M202K0.04%Q1 202618
RIVERNORTH CAPITAL MANAGEMENT, LLC
CIK 0001447578
$2M200K0.10%Q1 202619
Verition Fund Management LLC
CIK 0001454027
$2M200K0.01%Q1 202620
BERKLEY W R CORP
CIK 0000011544
$2M199K0.10%Q1 2026
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