Blue Water Acquisition Corp. IV

Overview

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• TickerBWIV on NYSE¹
• IndustryBlank Checks¹
• HeadquartersGreenwich, Connecticut¹
• Incorporated inCayman Islands²
• Business address15 E. Putnam Avenue, Suite 363, Greenwich, Ct 06830²
• Filer category, Emerging growth company²

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Corporate structure

Blue Water Acquisition Corp. IV sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

Leadership

Who has led Blue Water Acquisition Corp. IV, and when. Pick a name to see everywhere that person has worked.

• Chief financial officerMartha F. Ross Mar 19, 2026 to now³

Timeline

1. Aug 18, 20268-K Executive or director change⁸
2. May 14, 20268-K Executive or director change⁹
3. May 6, 20268-K Other events¹⁰
4. Apr 28, 20268-K Regulation FD disclosure¹¹
5. Mar 27, 20268-K Other events¹²
6. Mar 25, 20268-K Entered a material agreement; Unregistered sale of shares; Executive or director change¹³

Filings

32 filings to the SEC since October 2021: 2 quarterly reports, 6 major events, 9 insider forms, 4 large holders, 11 other. The latest 20:

1. Aug 25, 20263 EDGAR
2. Aug 18, 20268-K EDGAR
3. Aug 14, 202610-Q EDGAR
4. May 15, 202610-Q EDGAR
5. May 14, 20268-K EDGAR
6. May 13, 2026SCHEDULE 13G EDGAR
7. May 13, 2026SCHEDULE 13G EDGAR
8. May 6, 20268-K EDGAR
9. Apr 28, 2026425 EDGAR
10. Apr 28, 20268-K EDGAR
11. Apr 15, 2026SCHEDULE 13G EDGAR
12. Apr 9, 2026SCHEDULE 13G EDGAR
13. Mar 27, 20268-K EDGAR
14. Mar 25, 20268-K EDGAR
15. Mar 24, 20264 EDGAR
16. Mar 24, 20264 EDGAR
17. Mar 23, 20263 EDGAR
18. Mar 20, 2026424B4 EDGAR
19. Mar 19, 2026EFFECT EDGAR
20. Mar 19, 20263 EDGAR

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

2 open-market trades by officers, directors and large owners since October 2021: 2 buys and 0 sales. Grants, option exercises and gifts are left out.

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

• Adage Capital Management, L.P.SCHEDULE 13G, 1 filing May 13, 2026¹⁴
• Magnetar Financial LLCSCHEDULE 13G, 1 filing May 13, 2026¹⁵
• Blue Water Acquisition IV LLCSCHEDULE 13G, 1 filing Apr 15, 2026¹⁶
• Wealthspring Capital LLCSCHEDULE 13G, 1 filing Apr 9, 2026¹⁷

SEC filer profile

How Blue Water Acquisition Corp. IV is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

• Name on EDGARBlue Water Acquisition Corp. IV¹
• CIK0002082847
• Filer status<br>emerging growth company¹
• Incorporated inCayman Islands¹
• Fiscal year endsDecember 31¹
• Industry code (SIC)6770 Blank Checks¹
• SEC reviewing officeOffice of Real Estate & Construction, Division of Corporation Finance¹
• Business address15 E. Putnam Avenue, Suite 363, Greenwich, CT 06830¹
• Phone646-303-0737¹
• On EDGAR sinceDec 5, 2025¹
• Filings32 in all: 3 (7), 8-K (6), SCHEDULE 13G (4), 10-Q (2), 4 (2), CORRESP (2), S-1/A (2), 424B4 (1)¹
  All 14 form types

  425 (1), 8-A12B (1), CERT (1), EFFECT (1), S-1 (1), UPLOAD (1)

• Latest filingsQuarterly report (10-Q) Aug 14, 2026
  Latest 8-K (8-K) Aug 18, 2026