IBACR · IB Acquisition Corp. · Holdings

$0.09 -0.02 (-17.59%) At close · Oct 21

Market Cap

$54.39M

5.01M

Volume · Oct 21 200 Avg daily vol (3M) 11.25K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of IBACR: 13F, 13D and 13G, insiders and funds →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

Quarter:

Holders: 26

Total Value: $0

Total Shares: 5,702,961

Institutional Ownership Trend

9 quarters

Who Holds IBACR

Last 8 quarters through Jun 30, 2026

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026: 26 filers, like-for-like change -9.9%; actively managed books -9.9%.

Holder type	Share	Filers	Change	New
Registered adviser	68.2%	14	-10.6%	1
Exempt adviser	3.5%	1	0.0%	0
Bank	7.0%	2	-20.0%	0
Broker-dealer	0.8%	1	-2.1%	0
Adviser	0.0%	0	—	0
Unknown	20.4%	8	-5.5%	0

Style	Share	Filers	Change	New
Systematic-like	19.7%	4	0.0%	0
Concentrated	10.0%	5	-0.2%	0
Diversified active	70.2%	17	-13.6%	1
Not measured	0.0%	0	—	0
Unknown	0.0%	0	—	0

Turnover	Share	Filers	Change	New
Low turnover	2.0%	3	0.0%	0
Medium turnover	47.7%	11	-3.2%	1
High turnover	46.8%	11	-16.8%	0
Unknown	3.6%	1	0.0%	0
Not measured	0.0%	0	—	0

Holding horizon	Share	Filers	Change	New
Short horizon	74.2%	14	-11.3%	0
Medium horizon	1.3%	1	0.0%	0
Long horizon	11.1%	7	-12.6%	1
Unknown	13.4%	4	-0.1%	0
Not measured	0.0%	0	—	0

13F book size	Share	Filers	Change	New
Under $1B	41.4%	9	-2.7%	0
$1B to $10B	44.6%	11	-15.7%	0
$10B to $100B	10.9%	3	-11.6%	1
$100B or more	3.0%	3	-4.9%	0
Not measured	0.0%	0	—	0

Client base	Share	Filers	Change	New
Individuals and high net worth	1.0%	3	+45.8%	1
Pooled investment vehicles	43.5%	8	-16.0%	0
Registered funds and BDCs	8.8%	2	0.0%	0
Other investment advisers	14.9%	1	-0.9%	0
Unknown	31.8%	12	-8.5%	0

Private funds	Share	Filers	Change	New
Hedge funds	49.6%	10	-14.3%	0
Private equity funds	15.3%	2	-0.9%	0
Real estate funds	0.3%	1	new	1
No private funds	6.5%	2	0.0%	0
Mixed private funds	0.0%	0	—	0
Private funds, type not stated	0.0%	0	—	0
Unknown	28.3%	11	-9.4%	0

Location	Share	Filers	Change	New	Exited
United States	69.2%	20	-11.8%	1	0
Outside the US	30.8%	6	-5.4%	0	0

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

26 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

0.000% of filers hold it in their top 10

Mar 31, 2026: 0

Holders above 5%

median weight —

Mar 31, 2026: 0

Crowding

—

shares outstanding is an issuer-wide count, not one listing's

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

shares outstanding is an issuer-wide count, not one listing's

Top 10 holders

77.1%

of 13F shares, Herfindahl 0.078

Active holders

-9.9%

like-for-like share change of active filers

5% stakes on record

0 13D, 1 13G (1 institutional, 0 passive, 0 exempt)

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Shared Holders

Companies IBACR's active holders also own, quarter ended Sep 30, 2025

#	Company	Shared holders	Similarity
1	AFJK Aimei Health Technology Co., Ltd.	4	0.504
2	RANG Range Capital Acquisition Corp.	4	0.504
3	TVAI Thayer Ventures Acquisition Corp II	4	0.471
4	QSEA Quartzsea Acquisition Corp	4	0.471
5	SZZL Sizzle Acquisition Corp. II	3	0.447
6	BKHA Black Hawk Acquisition Corp	3	0.447
7	FSHP Flag Ship Acquisition Corp	3	0.447
8	SOCA Solarius Capital Acquisition Corp.	5	0.445
9	LPAA Launch One Acquisition Corp.	4	0.422
10	KVACF Keen Vision Acquisition Corp.	3	0.408

Shareholder Targets

13F filers that own its peers but not IBACR, quarter ended Sep 30, 2025

Found through its holder-overlap peers: AFJK, RANG, TVAI, QSEA, SZZL, BKHA, FSHP, SOCA, LPAA, KVACF, EURK, NPAC, IPEX, KFII, LPBB, KCHV, TACH, BLUW, PMTR, GTERA. 71 filers in all.

#	Filer	In peers	Of book	Largest peers
1	Magnetar Financial LLC Registered adviser, Concentrated	$180,202,898 14 held	1.32%	TACH, LPBB, LPAA
2	Linden Advisors LP Registered adviser, Diversified active	$141,235,343 14 held	15.3%	TVAI, PMTR, KCHV
3	MIZUHO SECURITIES USA LLC Unknown, Index-like	$96,639,195 20 held	2.05%	KCHV, LPAA, KVACF
4	LMR Partners LLP Exempt adviser, Systematic-like	$86,940,638 10 held	2.13%	LPAA, NPAC, GTERA
5	GLAZER CAPITAL, LLC Registered adviser, Diversified active	$85,370,427 16 held	10.8%	KFII, BLUW, KCHV
6	Alberta Investment Management Corp Non-US, Concentrated	$83,417,562 9 held	0.700%	PMTR, NPAC, KFII
7	PICTON MAHONEY ASSET MANAGEMENT Non-US, Diversified active	$79,310,187 11 held	1.08%	LPAA, KFII, NPAC
8	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US, Diversified active	$71,786,099 7 held	0.140%	TACH, NPAC, PMTR
9	MILLENNIUM MANAGEMENT LLC Registered adviser, Systematic-like	$60,973,283 10 held	0.050%	TACH, BLUW, SZZL
10	ARISTEIA CAPITAL, L.L.C. Registered adviser, Diversified active	$59,976,182 9 held	4.28%	KCHV, NPAC, TVAI

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.

Holder count: +1

Institutional value: —

Shares held: -9.9%

Top Buyers

vs Mar 31, 2026

No qualifying movers this quarter.

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid HIGHBRIDGE CAPITAL MANAGEMENT LLC	−471,421	150,000
Large TORONTO DOMINION BANK	−100,000	400,000
Small HEIGHTS CAPITAL MANAGEMENT, INC	−58,061	42,118
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	−8,810	21,962
Small Wealthspring Capital LLC	−7,859	851,160

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)	Open
Large Arax Advisory Partners	18,220	$0

Top Sold-Out Positions

vs Mar 31, 2026

No fully closed positions this quarter.

Filter: New 1 Increased 0 Reduced 9 Sold out 0 Unchanged 16

Holder type: Registered adviser 14 Exempt adviser 1 Bank 2 Broker-dealer 1 Unknown 8

Showing 26 of 26

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

TORONTO DOMINION BANK IBACR

—

400,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	400,000	$0	—	Defined

Yakira Capital Management, Inc. IBACR

—

197,531

SkyView Investment Advisors, LLC IBACR

—

75,000

SUSQUEHANNA INTERNATIONAL GROUP, LLP IBACR

—

21,962

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	21,962	$0	—	Other

FLOW TRADERS U.S. LLC IBACR

—

48,277

HIGHBRIDGE CAPITAL MANAGEMENT LLC IBACR

—

150,000

Decagon Asset Management LLP IBACR

—

159,411

Arax Advisory Partners IBACR

—

18,220

AQR Arbitrage LLC IBACR

—

732,521

UBS Group AG IBACR

—

1,009

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Securities LLC	1,009	$0	—	Defined

Context Capital Management, LLC IBACR

—

200,000

Westchester Capital Management, LLC IBACR

—

349,019

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtus Investment Advisers, LLC	349,019	$0	—	Other

D. E. Shaw & Co., Inc. IBACR

—

150,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	150,000	$0	—	Defined

WEXFORD CAPITAL LP IBACR

—

139,950

Polar Asset Management Partners Inc. IBACR

—

500,000

CONDOR CAPITAL MANAGEMENT IBACR

—

20,194

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	20,194	$0	—	Sole

Wealthspring Capital LLC IBACR

—

851,160

Evercore Wealth Management, LLC IBACR

—

19,576

TENOR CAPITAL MANAGEMENT Co., L.P. IBACR

—

100,000

Mint Tower Capital Management B.V. IBACR

—

500,000

RIVERNORTH CAPITAL MANAGEMENT, LLC IBACR

—

150,000

Periscope Capital Inc. IBACR

—

197,600

BOOTHBAY FUND MANAGEMENT, LLC IBACR

—

462,793

TWO SIGMA SECURITIES, LLC IBACR

—

13,466

Clear Street Group Inc. IBACR

—

203,154

HEIGHTS CAPITAL MANAGEMENT, INC IBACR

—

42,118

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CVI Investments, Inc.	42,118	$0	—	Other

Key facts CIK 1998781 CUSIP 44934N108