SCHEDULE 13D

BLUE WTR ACQUISITION CORP. I

Class A Ordinary Shares, $0.0001 par value · CUSIP: G1368E106

Event date: 2025-11-25

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Yorkville BW Acquisition Sponsor, LLCReported CIK 0002098097

  Shares: 6,755,000.00 · Class: 20.9%

• YA II PN, Ltd.

  Shares: 6,755,000.00 · Class: 20.9%

• YA Global Investments II (U.S.), LP

  Shares: 6,755,000.00 · Class: 20.9%

• Yorkville Advisors Global, LP

  Shares: 6,755,000.00 · Class: 20.9%

• Yorkville Advisors Global II, LLC

  Shares: 6,755,000.00 · Class: 20.9%

• YAII GP, LP

  Shares: 6,755,000.00 · Class: 20.9%

• YAII GP II, LLC

  Shares: 6,755,000.00 · Class: 20.9%

• Mark Angelo

  Shares: 6,755,000.00 · Class: 20.9%

• SC-Sigma Global Partners, LP

  Shares: 6,755,000.00 · Class: 20.9%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.