# EDGAR Filing Document

**Accession Number:** 0002050501
**File Stem:** 0001271848-26-000002
**Filing Date:** 2026-2
**Character Count:** 9932
**Document Hash:** 1d866082e5ee08ba6e46b24c66c19f37
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001271848-26-000002.hdr.sgml**: 20260217

**ACCESSION NUMBER**: 0001271848-26-000002

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260126

**FILED AS OF DATE**: 20260217

**DATE AS OF CHANGE**: 20260217

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** ANGELO MARK
- **CENTRAL INDEX KEY:** 0001271848

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42692
- **FILM NUMBER:** 26644142

**MAIL ADDRESS:**
- **STREET 1:** 101 HUDSON STREET
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302

**FORMER NAME:**
- **FORMER CONFORMED NAME:** ANGELO MARC
- **DATE OF NAME CHANGE:** 20031202
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Yorkville BW Acquisition Sponsor, LLC
- **CENTRAL INDEX KEY:** 0002098097

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** FL
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42692
- **FILM NUMBER:** 26644141

**BUSINESS ADDRESS:**
- **STREET 1:** 1012 SPRINGFIELD AVENUE
- **CITY:** MOUNTAINSIDE
- **STATE:** NJ
- **ZIP:** 07092
- **BUSINESS PHONE:** 908-906-5127

**MAIL ADDRESS:**
- **STREET 1:** 1012 SPRINGFIELD AVENUE
- **CITY:** MOUNTAINSIDE
- **STATE:** NJ
- **ZIP:** 07092
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Blue Water Acquisition Corp. III
- **CENTRAL INDEX KEY:** 0002050501
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 15 E. PUTNUM AVENUE
- **STREET 2:** SUITE 363
- **CITY:** GREENWICH
- **STATE:** CT
- **ZIP:** 06830
- **BUSINESS PHONE:** 646-303-0737

**MAIL ADDRESS:**
- **STREET 1:** 15 E. PUTNUM AVENUE
- **STREET 2:** SUITE 363
- **CITY:** GREENWICH
- **STATE:** CT
- **ZIP:** 06830

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>ANGELO MARK<br><sub>(Last) (First) (Middle)</sub><br>C/O BLUE WATER ACQUISITION CORP. III<br>1012 SPRINGFIELD AVENUE<br><sub>(Street)</sub><br>MOUNTAINSIDE, NJ 07092<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-01-26 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Blue Water Acquisition Corp. III [ BLUW ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Yorkville BW Acquisition Sponsor, LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O BLUE WATER ACQUISITION CORP. III<br>1012 SPRINGFIELD AVENUE<br><sub>(Street)</sub><br>MOUNTAINSIDE, NJ 07092<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-01-26 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Blue Water Acquisition Corp. III [ BLUW ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Convertible Working Capital Note<sup>(1)</sup> | 10<sup>(2)</sup> | 2026-01-26 |  | A<sup>(1)</sup> |  | 1 |  | <sup>(2)(3)</sup> | <sup>(2)(3)</sup> | Units<sup>(2)(3)</sup> | 50000<sup>(2)(3)</sup> | 500000<sup>(1)</sup> | 1 | I | See Footnote<sup>(4)</sup> |

---

### Footnotes:

(1) On January 26, 2026, the Issuer issued a convertible promissory note (the "Working Capital Note") in the principal amount of $500,000.00 to Yorkville BW Acquisition Sponsor, LLC (the "Sponsor"), in order to provide the Issuer with additional working capital. The acquisition of the Working Capital Note by the Sponsor, and through it, the beneficial acquisition of the Working Capital Note by the Sponsor's members and interest holders, is an exempt transaction under Rule 16b-3, promulgated by the U.S. Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended.

(2) Pursuant to the terms of the Working Capital Note, the principal balance shall not accrue interest; 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 Company's initial business combination. Should the Sponsor elect to convert all or a portion of the principal balance, the elected principal balance amount will convert, at a price of $10.00 per unit, into units identical to the private placement units issued in connection with the Issuer's initial public offering, rounded down to the nearest whole number.

(3) Each unit will consist of (a) one Class A ordinary share and (b) one-half of one warrant to purchase one Class A ordinary share, at an exercise price of $11.50 per share, which will become exercisable at the later of (i) 12 months from the closing of the Issuer's initial public offering and (ii) 30 days after the completion of the Issuer's initial business combination, and expiring 5 years after the completion of the Issuer's initial business combination, or earlier upon redemption or liquidation.

(4) 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.

**Signature:** /s/ Mark Angelo  
**Date:** 2026-02-17

**Signature:** /s/ Mark Angelo, Yorkville BW Acquisition Sponsor, LLC  
**Date:** 2026-02-17

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**