HawkEye 360 insider exercises options at $2.78, $4.25

The two exercised option tranches were fully vested, expiring on June 8, 2031, and April 19, 2032, respectively.

Rhea-AI Filing Summary

HawkEye 360, Inc. Chief Information Officer Charles Christopher Herndon exercised fully vested options to acquire 5,729 common shares at an exercise price of $2.78 per share and 8,000 shares at $4.25 per share on October 14, 2026. The respective option tranches expire June 8, 2031, and April 19, 2032.

Insider Trade Summary

13,729 shares exercised/converted

Exercise 4 txns

Insider Herndon Charles Christopher

Role Chief Information Officer

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy) F1	5,729	$0.00	$0.00
Exercise	Stock Option (Right to Buy) F1	8,000	$0.00	$0.00
Exercise	Common Stock	5,729	$2.78	$16K
Exercise	Common Stock	8,000	$4.25	$34K

Holdings After Transaction: Stock Option (Right to Buy) — 27,417 contracts (Direct); Common Stock — 55,547 shares (Direct)

Footnotes (1)

1. F1. Fully Vested

Key Figures

Common shares acquired: 5,729 shares Exercise price: $2.78 per share Common shares acquired: 8,000 shares +1 more

4 metrics

Common shares acquired 5,729 shares Through option exercise on October 14, 2026

Exercise price $2.78 per share For the 5,729-share option exercise on October 14, 2026

Common shares acquired 8,000 shares Through option exercise on October 14, 2026

Exercise price $4.25 per share For the 8,000-share option exercise on October 14, 2026

Key Terms

Stock Option (Right to Buy), Fully Vested, Exercise Price

3 terms

Stock Option (Right to Buy) financial

"Stock Option (Right to Buy)"

Fully Vested financial

"Fully Vested"

Exercise Price financial

"5,729 shares at an exercise price of $2.78 per share"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many HAWK shares did Chief Information Officer Charles Christopher Herndon acquire through option exercises?

Charles Christopher Herndon exercised options for 5,729 shares at $2.78 per share and 8,000 shares at $4.25 per share on October 14, 2026. Both option tranches were fully vested, expiring June 8, 2031, and April 19, 2032, respectively.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 10/15/2026 - 04:24 PM EDT Accepted by SEC EDGAR 10/15/2026 - 04:23 PM EDT Learn about SEC filing dates

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^*

Herndon Charles Christopher

(Last) (First) (Middle)

C/O HAWKEYE 360, INC.

450 SPRINGPARK PLACE, SUITE 500

(Street)

HERNDON VIRGINIA 20170

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
HawkEye 360, Inc. [ HAWK ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/14/2026

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
Common Stock	10/14/2026		M		5,729	A	$2.78	47,547	D
Common Stock	10/14/2026		M		8,000	A	$4.25	55,547	D

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
Stock Option (Right to Buy)	$2.78	10/14/2026		M			5,729	(1)	06/08/2031	Common Stock	5,729	$0	16,146	D
Stock Option (Right to Buy)	$4.25	10/14/2026		M			8,000	(1)	04/19/2032	Common Stock	8,000	$0	11,271	D

Explanation of Responses:

1. Fully Vested

	/s/ Michael S. Turner, Attorney-in-Fact	10/15/2026
	** 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)