Blue Water IV (NASDAQ: BWIV) CEO-linked sponsor reports private unit and warrant buys

Rhea-AI Filing Summary

Blue Water Acquisition Corp. IV director and CEO Joseph Hernandez reported indirect purchases linked to the company’s sponsor LLC. The filing shows 275,000 Class A ordinary shares and 137,500 warrants, all held indirectly. Each warrant allows purchase of one Class A share at $11.50 per share.

The footnotes explain these are 275,000 private units owned by Blue Water Acquisition IV LLC, the sponsor, bought at $10.00 per unit for an aggregate $2,750,000. Each unit includes one Class A share and one-half warrant. Hernandez, as managing member, has voting and dispositive power but disclaims beneficial ownership beyond his pecuniary interest. The warrants become exercisable after the company’s initial public offering and business combination milestones and expire five years after the business combination.

Insights

Equity analyst

CEO-associated entity reports indirect purchases of private units and warrants, but these are sponsor-held and structurally defined.

The filing details indirect open-market style purchases totaling 275,000 Class A ordinary shares and 137,500 related warrants, all held by the sponsor entity Blue Water Acquisition IV LLC. Each unit was priced at $10.00, for an aggregate $2,750,000, and carries a half-warrant exercisable at $11.50 per share.

Hernandez is the managing member of the sponsor and has voting and dispositive power, yet he explicitly disclaims beneficial ownership beyond his pecuniary interest. The warrants only become exercisable after specified IPO and business combination timing thresholds and expire five years after the business combination, so actual dilution and cash flows depend on future corporate milestones and market conditions not detailed here.

Insider Trade Summary

2 transactions reported

Net Buy 2 txns

Insider Hernandez Joseph

Role Chief Executive Officer

Bought 412,500 shs ($0.00)

Type	Security	Shares	Price	Value
Purchase	Warrants to purchase Class A ordinary shares	137,500	$0.00	--
Purchase	Class A ordinary shares	275,000	$0.00	--

Holdings After Transaction: Warrants to purchase Class A ordinary shares — 137,500 shares (Indirect, See footnote); Class A ordinary shares — 275,000 shares (Indirect, See footnote)

Footnotes (1)

1. Reflects the 275,000 private units owned by Blue Water Acquisition IV LLC, the Issuer's sponsor (the "sponsor"). Each private unit consists of one Class A ordinary share and one-half of one warrant, with each whole warrant entitling the holder thereof to purchase one Class A ordinary share for $11.50 per share, subject to adjustment. The private units were purchased at $10.00 per unit for an aggregate purchase price of $2,750,000. Joseph Hernandez is the managing member of the sponsor and has voting and dispositive power over the securities held of record by the sponsor. Mr. Hernandez disclaims any beneficial ownership of the securities held by the sponsor, except to the extent of his pecuniary interest therein. The warrants included in the private units will become exercisable at the later of 12 months from the closing of the Issuer's initial public offering and 30 days after the completion of its initial business combination and will expire five years after the completion of the initial business combination or earlier upon redemption or liquidation.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Hernandez Joseph

(Last) (First) (Middle)

C/O BLUE WATER ACQUISITION CORP. III

15 E PUTNAM AVENUE, SUITE 363

(Street)

GREENWICH CONNECTICUT 06830

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Blue Water Acquisition Corp. IV [ BWIV ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/23/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A ordinary shares	03/23/2026		P		275,000	A	(1)	275,000	I	See footnote(1)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Warrants to purchase Class A ordinary shares	$11.5	03/23/2026		P		137,500		(2)	(2)	Class A ordinary shares	137,500	(1)	137,500	I	See footnote(1)

Explanation of Responses:

1. Reflects the 275,000 private units owned by Blue Water Acquisition IV LLC, the Issuer's sponsor (the "sponsor"). Each private unit consists of one Class A ordinary share and one-half of one warrant, with each whole warrant entitling the holder thereof to purchase one Class A ordinary share for $11.50 per share, subject to adjustment. The private units were purchased at $10.00 per unit for an aggregate purchase price of $2,750,000. Joseph Hernandez is the managing member of the sponsor and has voting and dispositive power over the securities held of record by the sponsor. Mr. Hernandez disclaims any beneficial ownership of the securities held by the sponsor, except to the extent of his pecuniary interest therein.

2. The warrants included in the private units will become exercisable at the later of 12 months from the closing of the Issuer's initial public offering and 30 days after the completion of its initial business combination and will expire five years after the completion of the initial business combination or earlier upon redemption or liquidation.

	/s/ Joseph Hernandez	03/24/2026
	** Signature of Reporting Person	Date
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.
* Form 4: SEC 1474 (03-26)

FAQ

What did BWIV CEO Joseph Hernandez report buying in this filing?

He reported indirect purchases tied to 275,000 Class A ordinary shares and 137,500 warrants. These securities are held by the sponsor, Blue Water Acquisition IV LLC, not personally, and arise from 275,000 private units that each include one share and one-half warrant.

How are the Blue Water Acquisition Corp. IV private units structured?

Each private unit consists of one Class A ordinary share and one-half of one warrant. Every whole warrant entitles the holder to buy one Class A share at $11.50 per share, giving combined equity and future purchase optionality in a single security package.

What price did the BWIV sponsor pay for the private units?

The sponsor, Blue Water Acquisition IV LLC, purchased 275,000 private units at $10.00 per unit. This results in an aggregate purchase price of $2,750,000, establishing the sponsor’s cost basis for the associated Class A ordinary shares and attached warrants described in the filing footnotes.

When do the Blue Water Acquisition Corp. IV warrants become exercisable?

The warrants become exercisable at the later of 12 months after the IPO closing and 30 days after the initial business combination. They then remain outstanding for five years after the business combination, unless earlier redeemed or the company is liquidated, according to the disclosure.

Does Joseph Hernandez directly own the BWIV private units and warrants?

The securities are held by Blue Water Acquisition IV LLC, the sponsor, not in his personal name. Hernandez is the sponsor’s managing member with voting and dispositive power but disclaims beneficial ownership except for any pecuniary interest he has in that entity’s holdings.

What is the exercise price of the Blue Water Acquisition Corp. IV warrants?

Each whole warrant entitles the holder to purchase one Class A ordinary share at an exercise price of $11.50 per share. This fixed strike price defines the cost to convert warrants into equity after the specified exercisability conditions are met.