Iris Acquisition IRAB Institutional Ownership

NYSE IRAB

$10.01 +0.00 (+0.00%)

As of: Nov 6, 2026 · 9:40 AM EST

Institutions by Trading Activity

42 Institutions

Increased 15 35.7%

Unchanged 24 57.1%

Reduced 3 7.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

32.56%

Shares Held by Institutions

14.92Mn

of 45.81Mn outstanding

▲+37.72% QoQ

Shares Outstanding

45.81Mn

30.89Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+10 vs prior quarter

Net Shares Added (QoQ)

+4.09Mn

accumulated since last quarter

Value of Holdings

$149.31Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Nov 5, 2026

Iris Acquisition Corp II (NYSE:IRAB) counted 42 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

These investors accounted for 32.56% of Iris Acquisition's outstanding shares in Q2 2026.
Total shares held in Iris Acquisition rose 37.72% versus Q1 2026.
Of the 42 holders of IRAB in Q2 2026, 15 added to their positions, 3 reduced their stakes and 24 left their positions unchanged.
Altogether, institutional holders owned 14.92Mn IRAB shares at the end of Q2 2026, up 4.09Mn from the prior quarter.
As of June 30, 2026, the biggest holder of Iris Acquisition was Adage Capital Partners GP, L.L.C. with 1.35Mn shares, or 2.95% of shares outstanding.
Holders that added the most shares of Iris Acquisition in Q2 2026 were Commonwealth of Pennsylvania Public School Empls Retrmt SYS (+150K shares), AQR Arbitrage LLC (+6.5K shares), Glazer Capital, LLC (+4.01K shares) and D. E. Shaw & Co., Inc. (+1 share).
Holders that trimmed the most shares of Iris Acquisition in Q2 2026 while keeping a position were Shaolin Capital Management LLC (-199.22K shares), Clear Street Group Inc. (-64.6K shares) and Virtu Financial LLC (-11.2K shares).
Iris Acquisition's 10 largest institutional shareholders as of Q2 2026 were Adage Capital Partners GP, L.L.C. (1.35Mn shares), Aristeia Capital, L.L.C. (1.16Mn shares), Tenor Capital Management Co., L.P. (1Mn shares), Sona Asset Management (US) LLC (850K shares), Linden Advisors LP (800K shares), Healthcare of Ontario Pension Plan Trust Fund (800K shares), MMCAP International Inc. SPC (600K shares), Magnetar Financial LLC (600K shares), AQR Arbitrage LLC (584.96K shares) and BNP Paribas Financial Markets (546.53K shares), per Business Quant data.

Form 13F Holdings

42 Institutional Holders

Report period 30 Jun, 2026

Total shares held 14.92Mn

Of outstanding 32.56%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	ADAGE CAPITAL PARTNERS GP, L.L.C.	0001165408	1,350,000	2.95%	0	0.00%	$13.41Mn
2	ARISTEIA CAPITAL, L.L.C.	0001080171	1,159,828	2.53%	▲1,159,828	0.00%	$11.52Mn
3	TENOR CAPITAL MANAGEMENT Co., L.P.	0001346554	1,000,000	2.18%	0	0.00%	$9.93Mn
4	SONA ASSET MANAGEMENT (US) LLC	0001856405	850,000	1.86%	0	0.00%	$8.44Mn
5	LINDEN ADVISORS LP	0001279396	800,000	1.75%	0	0.00%	$7.94Mn
5	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	0001535845	800,000	1.75%	0	0.00%	$7.94Mn
6	MMCAP International Inc. SPC	0001304857	600,000	1.31%	▲600,000	0.00%	$5.96Mn
6	Magnetar Financial LLC	0001352851	600,000	1.31%	▲600,000	0.00%	$6.00Mn
7	AQR Arbitrage LLC	0001167456	584,964	1.28%	▲6,500	+1.12%	$5.80Mn
8	BNP PARIBAS FINANCIAL MARKETS	0001166588	546,532	1.19%	0	0.00%	$5.43Mn
9	MILLENNIUM MANAGEMENT LLC	0001273087	425,000	0.93%	▲425,000	0.00%	$4.22Mn
10	D. E. Shaw & Co., Inc.	0001009207	420,601	0.92%	▲1	+0.00%	$4.18Mn
11	Alberta Investment Management Corp	0001463559	400,000	0.87%	▲400,000	0.00%	$3.97Mn
12	First Trust Capital Management L.P.	0001604488	399,998	0.87%	0	0.00%	$3.97Mn
13	WHITEBOX ADVISORS LLC	0001257391	375,200	0.82%	0	0.00%	$3.73Mn
14	Crossingbridge Advisors, LLC	0001770024	350,000	0.76%	▲350,000	0.00%	$3.48Mn
15	Radcliffe Capital Management, L.P.	0001218275	299,570	0.65%	0	0.00%	$2.97Mn
16	TWO SIGMA INVESTMENTS, LP	0001179392	271,875	0.59%	0	0.00%	$2.70Mn
17	Centiva Capital, LP	0001692507	250,700	0.55%	0	0.00%	$2.49Mn
18	Context Capital Management, LLC	0001301396	250,000	0.55%	0	0.00%	$2.48Mn

Showing 1 to 20 of 42 holders