Who owns Blue Water Acquisition Corp. IV?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of BWIV from SEC Form 13F filings across 35 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 35 institutions disclosed 10.0M shares of Blue Water Acquisition Corp. IV worth $98.5M — about 54.8% of shares outstanding; the largest disclosed holder is ADAGE CAPITAL PARTNERS GP, L.L.C.. Source: SEC Form 13F filings, parsed by EvidInvest.
35
13F holders
$98.5M
value, 2026 filers
54.8%
of shares outstanding (10.0M sh)
35
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of BWIV's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ADAGE CAPITAL PARTNERS GP, L.L.C.NEW | 1.1M | $11.1M | 0.0% | 6.2% | new |
| 2 | Magnetar Financial LLCNEW | 950,000 | $9.4M | 0.1% | 5.2% | new |
| 3 | Wealthspring Capital LLCNEW | 636,319 | $6.3M | 1.4% | 3.5% | new |
| 4 | Linden Advisors LPNEW | 625,000 | $6.2M | 0.0% | 3.4% | new |
| 5 | Alberta Investment Management CorpNEW | 600,000 | $5.9M | 0.0% | 3.3% | new |
| 6 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUNDNEW | 500,000 | $5.0M | 0.0% | 2.8% | new |
| 7 | RIVERNORTH CAPITAL MANAGEMENT, LLCNEW | 500,000 | $5.0M | 0.2% | 2.8% | new |
| 8 | MILLENNIUM MANAGEMENT LLCNEW | 475,000 | $4.7M | 0.0% | 2.6% | new |
| 9 | COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYSNEW | 400,000 | $4.0M | 0.0% | 2.2% | new |
| 10 | SONA ASSET MANAGEMENT (US) LLCNEW | 350,000 | $3.5M | 0.1% | 1.9% | new |
| 11 | WHITEBOX ADVISORS LLCNEW | 350,000 | $3.5M | 0.0% | 1.9% | new |
| 12 | TENOR CAPITAL MANAGEMENT Co., L.P.NEW | 300,000 | $3.0M | 0.0% | 1.7% | new |
| 13 | BNP PARIBAS FINANCIAL MARKETSNEW | 299,972 | $3.0M | 0.0% | 1.7% | new |
| 14 | AQR Arbitrage LLCNEW | 293,324 | $2.9M | 0.0% | 1.6% | new |
| 15 | Radcliffe Capital Management, L.P.NEW | 275,100 | $2.7M | 0.2% | 1.5% | new |
| 16 | Kryger Capital LLCNEW | 245,791 | $2.5M | 0.1% | 1.4% | new |
| 17 | TWO SIGMA INVESTMENTS, LPNEW | 226,562 | $2.2M | 0.0% | 1.2% | new |
| 18 | Verition Fund Management LLCNEW | 217,884 | $2.2M | 0.0% | 1.2% | new |
| 19 | MOORE CAPITAL MANAGEMENT, LPNEW | 200,000 | $2.0M | 0.0% | 1.1% | new |
| 20 | GLAZER CAPITAL, LLCNEW | 199,309 | $2.0M | 0.0% | 1.1% | new |
| 21 | WOLVERINE ASSET MANAGEMENT LLCNEW | 190,125 | $1.9M | 0.0% | 1% | new |
| 22 | Clear Street Group Inc.NEW | 173,251 | $1.7M | 0.0% | 1% | new |
| 23 | BERKLEY W R CORPNEW | 149,160 | $1.5M | 0.1% | 0.8% | new |
| 24 | DELTEC ASSET MANAGEMENT LLCNEW | 100,000 | $990,000 | 0.1% | 0.6% | new |
| 25 | Mint Tower Capital Management B.V.NEW | 100,000 | $990,000 | 0.1% | 0.6% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.