Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Spoto Mark 2. Issuer Name and Ticker or Trading Symbol HawkEye 360, Inc. [HAWK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O HAWKEYE 360, INC., 450 SPRINGPARK PLACE, SUITE 500 3. Date of Earliest Transaction (Month/Day/Year) 05/08/2026 (Street) HERNDON, VA 20170 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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 Common Stock 05/08/2026 C 2,279,591 A (1) 2,319,211 I See footnote(2) Common Stock 05/08/2026 C 1,389,294 A (1) 1,413,578 I See footnote(3) Common Stock 05/08/2026 C 789,044 A (1) 960,042 I See footnote(4) Common Stock 05/08/2026 M 10,867 A (5) 970,909 I See footnote(4) Common Stock 05/08/2026 D 4,671 D (5) 966,238 I See footnote(4)

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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 Underlying Securities (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 of Derivative Security: 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
Series A-2 Preferred Stock	(1)	05/08/2026		C			1,371,302	(1)	(1)	Common Stock	1,371,302	$ 0	0	I	See Footnote(2)
Series A-2 Preferred Stock	(1)	05/08/2026		C			835,740	(1)	(1)	Common Stock	835,740	$ 0	0	I	See Footnote(3)
Series A-3 Preferred Stock	(1)	05/08/2026		C			311,186	(1)	(1)	Common Stock	311,186	$ 0	0	I	See Footnote(2)
Series A-3 Preferred Stock	(1)	05/08/2026		C			189,652	(1)	(1)	Common Stock	189,652	$ 0	0	I	See Footnote(3)
Series B Preferred Stock	(1)	05/08/2026		C			513,701	(1)	(1)	Common Stock	513,701	$ 0	0	I	See Footnote(2)
Series B Preferred Stock	(1)	05/08/2026		C			313,073	(1)	(1)	Common Stock	313,073	$ 0	0	I	See Footnote(3)
Series C Preferred Stock	(1)	05/08/2026		C			343,934	(1)	(1)	Common Stock	343,934	$ 0	0	I	See Footnote(4)
Series D Preferred Stock	(1)	05/08/2026		C			221,391	(1)	(1)	Common Stock	221,391	$ 0	0	I	See Footnote(4)
Series D-1 Preferred Stock	(1)	05/08/2026		C			83,402	(1)	(1)	Common Stock	83,402	$ 0	0	I	See Footnote(2)
Series D-1 Preferred Stock	(1)	05/08/2026		C			50,829	(1)	(1)	Common Stock	50,829	$ 0	0	I	See Footnote(3)
Series D-1 Preferred Stock	(1)	05/08/2026		C			223,719	(1)	(1)	Common Stock	223,719	$ 0	0	I	See Footnote(4)
Warrant to Purchase Common Stock	$11.1747	05/08/2026		M			10,867	(5)	(5)	Common Stock	10,867	$ 0	0	I	See Footnote(4)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Spoto Mark C/O HAWKEYE 360, INC. 450 SPRINGPARK PLACE, SUITE 500 HERNDON, VA 20170	X

Signatures

/s/ Michael S. Turner, Attorney-in-Fact		05/12/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock and Series D-1 Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering (IPO) for no additional consideration, on a 1-for-1 basis, and had no expiration date.
(2)	These securities are owned directly by Razor's Edge Fund II, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II, LP except to the extent of his pecuniary interest therein.
(3)	These securities are owned directly by Razor's Edge Fund II-A, LP. Razor's Edge Ventures II, LLC is the general partner of Razor's Edge Fund II-A, LP. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by Razor's Edge Fund II-A, LP. The reporting person disclaims beneficial ownership of the securities held by Razor's Edge Fund II-A, LP except to the extent of his pecuniary interest therein.
(4)	These securities are owned directly by REII Sidecar 2, LLC. Razor's Edge Ventures II, LLC is the manager of REII Sidecar 2, LLC. The reporting person is a managing member of Razor's Edge Ventures II, LLC and may be deemed to be the beneficial owner of the securities held by REII Sidecar 2, LLC. The reporting person disclaims beneficial ownership of the securities held by REII Sidecar 2, LLC except to the extent of his pecuniary interest therein.
(5)	The warrant to acquire common stock automatically net exercised into shares of the Issuer's common stock immediately prior to consummation of the IPO. The warrant had an exercise price of $11.1747 per share. The holder paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 4,671 of the warrant shares to pay the exercise price and issuing to the holder the remaining 6,196 shares.

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