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BWIV · Blue Water Acquisition Corp. IV · Shareholders & Ownership

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$9.98 +0.00 (+0.00%) At close · Oct 27
Market Cap
$177.23M
Shares
17.76M
Volume · Oct 27 182 Avg daily vol (3M) 24.28K

Every disclosed holder of BWIV in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns BWIV

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 9,950,040 56.03%
Insiders (Forms 3, 4, 5) 0 0.00%
13D/G-only blocks 5,066,667 28.53%
Remaining 2,741,627 15.44%
Registered funds (N-PORT, not summed) 210,000 1.18%

Shares outstanding: 17,758,334, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of BWIV

# Holder Shares
1
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F CIK 1165408 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,125,000
2
Magnetar Financial LLC
13F CIK 1352851 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
950,000
3
Wealthspring Capital LLC
13F CIK 1844495 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
636,319
4
Linden Advisors LP
13F CIK 1279396 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
625,000
5
Alberta Investment Management Corp
13F CIK 1463559 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
600,000
6
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
13F CIK 1535845 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
500,000
7
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F CIK 1447578 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
500,000
8
MILLENNIUM MANAGEMENT LLC
13F CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
475,000
9
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS
13F CIK 1083190 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
400,000
10
SONA ASSET MANAGEMENT (US) LLC
13F CIK 1856405 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
350,000
11
WHITEBOX ADVISORS LLC
13F CIK 1257391 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
350,000
12
TENOR CAPITAL MANAGEMENT Co., L.P.
13F CIK 1346554 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
300,000
13
BNP PARIBAS ARBITRAGE, SA
13F CIK 1166588 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
299,972
14
AQR Arbitrage LLC
13F CIK 1167456 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
293,324
15
Radcliffe Capital Management, L.P.
13F CIK 1218275 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
275,100
16
Blue Water Acquisition IV LLC
Insider CIK 2083181 · Mar 23, 2026
10% Owner, issuer-wide, not summed
275,000
16.1
Blue Water Acquisition IV LLC
13G CIK 2083181 · Unknown · Mar 19, 2026
Rule 13d-1(d), exempt investor
5,066,667
17
Hernandez Joseph
Insider CIK 1598384 · Mar 23, 2026
Director, Chief Executive Officer, 10% Owner, issuer-wide, not summed
275,000
18
Kryger Capital LLC
13F CIK 2123957 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
245,791
19
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
226,562
20
Verition Fund Management LLC
13F CIK 1454027 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
217,884
21
MOORE CAPITAL MANAGEMENT, LP
13F CIK 1448574 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
200,000
22
GLAZER CAPITAL, LLC
13F CIK 1076809 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
199,309
23
WOLVERINE ASSET MANAGEMENT LLC
13F CIK 1279891 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
190,125
24
Clear Street Group Inc.
13F CIK 1881567 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
173,251
25
BERKLEY W R CORP
13F CIK 11544 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
149,160
26
DELTEC ASSET MANAGEMENT LLC
13F CIK 1269950 · Registered investment adviser · Sep 30, 2026
100,000
27
First Trust Alternative Opportunities Fund
Fund · Registered fund · Jun 30, 2026
First Trust Alternative Opportunities Fund, not summed
100,000
27.1
RiverNorth Opportunities Fund Inc.
Fund · Registered fund · Jun 30, 2026
RIVERNORTH OPPORTUNITIES FUND INC., not summed
100,000
28
K2 PRINCIPAL FUND, L.P.
13F CIK 1461790 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
100,000
29
Mint Tower Capital Management B.V.
13F CIK 1666606 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
100,000
30
Periscope Capital Inc.
13F CIK 1695320 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
99,800
31
Shaolin Capital Management LLC
13F CIK 1766806 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
90,725
32
HEIGHTS CAPITAL MANAGEMENT, INC
13F CIK 1081698 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
60,000
33
DLD Asset Management, LP
13F CIK 1578299 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
50,000
34
Hudson Bay Capital Management LP
13F CIK 1393825 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
23,718
35
ABC ARBITRAGE SA
13F CIK 2049221 · Unknown · Sep 30, 2026
20,000
36
DV Trading LLC
13F CIK 1721757 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
10,000
37
TrueMark Investments, LLC
13F CIK 1974457 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
10,000
37.1
Rivernorth Enhanced Pre-Merger SPAC ETF
Fund S000092118 · Registered fund · Jun 30, 2026
Elevation Series Trust, not summed
10,000
38
Arax Advisory Partners
13F CIK 1586767 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,000

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Key facts CIK 2082847 CUSIP G1368A104 13F (30d) 2 filings 2 filers