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 * DEWALT DAVID G 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 __X__ 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 467,726 A (1) 467,726 D Common Stock 05/08/2026 C 5,841,537 A (1) 6,911,018 I See footnote(2) Common Stock 05/08/2026 M 30,645 A (3) 6,941,663 I See footnote(2) Common Stock 05/08/2026 D 12 D (3) 6,941,651 I See Footnote(2) Common Stock 05/08/2026 M 85,273 A (4) 7,026,924 I See footnote(2) Common Stock 05/08/2026 D 33 D (4) 7,026,891 I See Footnote(2) Common Stock 05/08/2026 M 13,535 A (5) 7,040,426 I See footnote(2) Common Stock 05/08/2026 D 5,818 D (5) 7,034,608 I See footnote(2) Common Stock 05/08/2026 C 2,114,806 A (1) 2,114,806 I See footnote(6)

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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-1 Preferred Stock	(1)	05/08/2026		C			120,242	(1)	(1)	Common Stock	120,242	$ 0	0	D
Series A-1 Preferred Stock	(1)	05/08/2026		C			32,719	(1)	(1)	Common Stock	32,719	$ 0	0	I	See Footnote(2)
Series A-1 Preferred Stock	(1)	05/08/2026		C			271,102	(1)	(1)	Common Stock	271,102	$ 0	0	I	See Footnote(6)
Series A-2 Preferred Stock	(1)	05/08/2026		C			133,023	(1)	(1)	Common Stock	133,023	$ 0	0	D
Series A-2 Preferred Stock	(1)	05/08/2026		C			36,196	(1)	(1)	Common Stock	36,196	$ 0	0	I	See Footnote(2)
Series A-2 Preferred Stock	(1)	05/08/2026		C			299,917	(1)	(1)	Common Stock	299,917	$ 0	0	I	See Footnote(6)
Series A-3 Preferred Stock	(1)	05/08/2026		C			45,008	(1)	(1)	Common Stock	45,008	$ 0	0	D
Series A-3 Preferred Stock	(1)	05/08/2026		C			12,247	(1)	(1)	Common Stock	12,247	$ 0	0	I	See Footnote(2)
Series A-3 Preferred Stock	(1)	05/08/2026		C			101,477	(1)	(1)	Common Stock	101,477	$ 0	0	I	See Footnote(6)
Series B Preferred Stock	(1)	05/08/2026		C			116,825	(1)	(1)	Common Stock	116,825	$ 0	0	D
Series B Preferred Stock	(1)	05/08/2026		C			31,789	(1)	(1)	Common Stock	31,789	$ 0	0	I	See Footnote(2)
Series B Preferred Stock	(1)	05/08/2026		C			263,398	(1)	(1)	Common Stock	263,398	$ 0	0	I	See Footnote(6)
Series C Preferred Stock	(1)	05/08/2026		C			37,589	(1)	(1)	Common Stock	37,589	$ 0	0	D
Series C Preferred Stock	(1)	05/08/2026		C			5,017,739	(1)	(1)	Common Stock	5,017,739	$ 0	0	I	See Footnote(2)
Series C Preferred Stock	(1)	05/08/2026		C			84,751	(1)	(1)	Common Stock	84,751	$ 0	0	I	See Footnote(6)
Series D Preferred Stock	(1)	05/08/2026		C			15,039	(1)	(1)	Common Stock	15,039	$ 0	0	D
Series D Preferred Stock	(1)	05/08/2026		C			220,162	(1)	(1)	Common Stock	220,162	$ 0	0	I	See Footnote(2)
Series D Preferred Stock	(1)	05/08/2026		C			33,909	(1)	(1)	Common Stock	33,909	$ 0	0	I	See Footnote(6)
Series D-1 Preferred Stock	(1)	05/08/2026		C			278,635	(1)	(1)	Common Stock	278,635	$ 0	0	I	See Footnote(2)
Series E Preferred Stock	(1)	05/08/2026		C			212,050	(1)	(1)	Common Stock	212,050	$ 0	0	I	See Footnote(2)
Series E Preferred Stock	(1)	05/08/2026		C			1,060,252	(1)	(1)	Common Stock	1,060,252	$ 0	0	I	See Footnote(6)
Warrant to Purchase Common Stock	$0.01	05/08/2026		M			30,645	(3)	(3)	Common Stock	30,645	$ 0	0	I	See Footnote(7)
Warrant to Purchase Common Stock	$0.01	05/08/2026		M			85,273	(4)	(4)	Common Stock	85,273	$ 0	0	I	See Footnote(7)
Warrant to Purchase Common Stock	$11.1747	05/08/2026		M			13,535	(5)	(5)	Common Stock	13,535	$ 0	0	I	See Footnote(7)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
DEWALT DAVID G C/O HAWKEYE 360, INC. 450 SPRINGPARK PLACE, SUITE 500 HERNDON, VA 20170	X	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-1 Preferred Stock, Series A-2 Preferred Stock, Series A-3 Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series D-1 Preferred Stock and Series E Preferred Stock automatically converted into common stock upon the closing of the Issuer's initial public offering for no additional consideration, on a 1-for-1 basis, and had no expiration date.
(2)	The shares are held of record by NightDragon Growth I, L.P. ("NightDragon I"). NightDragon Growth GP I, LLC ("NightDragon GP I") is the general partner of NightDragon I. The Reporting Person is the managing member of NightDragon GP I and may be deemed to hold voting and investment power with respect to the shares held by NightDragon I.
(3)	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 $0.01 per share. The holder paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 12 of the warrant shares to pay the exercise price and issuing to the holder the remaining 30,633 shares.
(4)	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 $0.01 per share. The holder paid the exercise price on a cashless basis, resulting in the Issuer's withholding of 33 of the warrant shares to pay the exercise price and issuing to the holder the remaining 85,240 shares.
(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 5,818 of the warrant shares to pay the exercise price and issuing to the holder the remaining 7,717 shares.
(6)	The shares are held of record by NightDragon Growth II, L.P. ("NightDragon II"). NightDragon Growth GP II, LLC ("NightDragon GP II") is the general partner of NightDragon II. The Reporting Person is the managing member of NightDragon GP II and may be deemed to hold voting and investment power with respect to the shares held by NightDragon II.
(7)	The Warrant is held of record by NightDragon I. NightDragon GP I is the general partner of NightDragon I. The Reporting Person is the managing member of NightDragon GP I and may be deemed to hold voting and investment power with respect to the shares held by NightDragon I.

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