BWIV · Blue Water Acquisition Corp. IV · Shareholders & Ownership
Substantial doubt about the company's ability to continue as a going concern.
“As of June 30, 2026 and December 31, 2025, the Company had no cash and working capital (deficit) of $518,220 and $(181,480), respectively. The Company has incurred and expects to continue to incur significant costs in pursuit of its financing and acquisition plans. These conditions raise substantial doubt about the Company’s ability to continue as a going concern one year from the issuance date of the financial statements. Management plans to address this uncertainty by issuing working capital loans, as necessary, and consummating an initial business combination. However, there is no assurance that the Company’s plans to raise capital or to consummate an initial business combination will be successful. The financial statements contained elsewhere in this report do not include any adjustments that might result from the outcome of this uncertainty.”View the 10-Q filed Aug 14, 2026
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 | As of | Notes |
|---|---|---|---|---|
| 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 |
|
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.