Mark Angelo - 11 Aug 2026 Form 4 Insider Report for Blue Water Acquisition Corp. III (BLUW)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: BLUW
Reported as of: 11 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 13 Aug 2026, 19:27:18 UTC
Prior SEC filing: 15 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Mark Angelo

Key filing fact

Mark Angelo filed Form 4 for Blue Water Acquisition Corp. III (BLUW) on 13 Aug 2026.

Key facts

This page summarizes Mark Angelo's Form 4 filing for Blue Water Acquisition Corp. III (BLUW).
2 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 13 Aug 2026, 19:27.

Change

Previous filing in this sequence was filed on 15 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (2)

CIK 0001271848 Primary reporting owner

ANGELO MARK

Relationship: Director, 10%+ Owner
Address: C/O YORKVILLE ACQUISITION CORP, 1012 SPRINGFIELD AVENUE, MOUNTAINSIDE
Signature: /s/ Mark Angelo
Signature date: 13 Aug 2026

CIK 0002098097

Yorkville BW Acquisition Sponsor, LLC

Relationship: 10%+ Owner
Address: C/O YORKVILLE ACQUISITION CORP, 1012 SPRINGFIELD AVENUE, MOUNTAINSIDE
Signature: /s/ Mark Angelo, Yorkville BW Acquisition Sponsor, LLC
Signature date: 13 Aug 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

BLUW transaction Derivative

Convertible Working Capital Note

Award

Transaction value
Shares: +75,000
Change %
Price
Shares after: 75,000
Date: 11 Aug 2026
Ownership: By Yorkville BW Acquisition Sponsor, LLC
Underlying class: Class A ordinary shares
Underlying amount: 75,000
Exercise price
Footnotes: F1, F2, F3, F4

BLUW transaction Derivative

Convertible Working Capital Note

Award

Transaction value
Shares: +75,000
Change %
Price
Shares after: 75,000
Date: 11 Aug 2026
Ownership: By Yorkville BW Acquisition Sponsor, LLC
Underlying class: Class A ordinary shares
Underlying amount: 75,000
Exercise price
Footnotes: F1, F2, F3, F4

BLUW transaction Derivative

Convertible Working Capital Note

Award

Transaction value
Shares: +37,500
Change %
Price
Shares after: 37,500
Date: 11 Aug 2026
Ownership: By Yorkville BW Acquisition Sponsor, LLC
Underlying class: Warrants
Underlying amount: 37,500
Exercise price
Footnotes: F1, F2, F3, F4

BLUW transaction Derivative

Convertible Working Capital Note

Award

Transaction value
Shares: +37,500
Change %
Price
Shares after: 37,500
Date: 11 Aug 2026
Ownership: By Yorkville BW Acquisition Sponsor, LLC
Underlying class: Warrants
Underlying amount: 37,500
Exercise price
Footnotes: F1, F2, F3, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

On August 11, 2026, the Issuer entered into an Amended and Restated Working Capital Note ("Note") promising to pay Yorkville BW Acquisition Sponsor, LLC ( "Sponsor") $750,000. All amounts due under the Note may be converted into 75,000 units. Each unit consists of one Class A ordinary share ("Ordinary Shares") and one-half of one warrant to purchase one Ordinary Share, resulting in 75,000 Ordinary Shares and warrants to purchase 37,500 Ordinary shares of the Issuer at the discretion of the Sponsor upon the consummation of the business combinations. The warrants shall have the same terms and conditions as the warrants issued in the initial public offering. The acquisition of the Note by the Sponsor, and the beneficial acquisition of the Note by the Sponsor's members, is an exempt transaction under Rule 16b-3, promulgated by the U.S. Securities and Exchange Commission pursuant to the Securities Act of 1934, as amended.

Footnote F2

The principal balance of the Note shall be payable by the Issuer on the earlier of the date on which the Issuer consummates its initial business combination or the date that the winding up of the Issuer is effective, and is convertible at the Sponsor's election upon the consummation of the initial business combination.

Footnote F3

The Issuer's Ordinary Shares and warrants are described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-285075).

Footnote F4

Yorkville Advisors Global, LP ("Yorkville LP") is the manager of the Sponsor and holds voting and investment discretion over the securities held by the Sponsor. YA II PN, Ltd. ("YA II PN") is a member of the Sponsor. Yorkville LP is the investment manager of YA II PN, and Yorkville Advisors Global II, LLC ("Yorkville LLC") is the General Partner of Yorkville LP. Mr. Angelo serves as President of Yorkville LLC and makes all investment decisions for YA II PN. As such, Mr. Angelo may be deemed to have beneficial ownership of the securities held by the Sponsor. Mr. Angelo disclaims any beneficial ownership of the reported securities, except to the extent of his pecuniary interest therein.