QS Energy director buys 150K shares at $0.10

QS Energy, Inc. (QSEP) director Eric Bunting reported several equity-related transactions.

Rhea-AI Filing Summary

QS Energy, Inc. (QSEP) director Eric Bunting reported several equity-related transactions. On August 27, 2026, he acquired 150,000 shares of common stock at $0.10 per share, bringing his directly held common stock to 20,789,977 shares. These shares relate to warrants that, according to a footnote, were acquired from an unrelated third party and subsequently exercised on August 27, 2026.

On August 25, 2026, he acquired and then converted 150,000 warrants with a $0.10 conversion price into common stock. Separately, on January 1, 2026, he received a grant of 333,333 stock options with a $0.15 exercise price, vesting monthly over 2026 under the company’s Director Compensation Policy.

Insider Trade Summary

150,000 shares exercised/converted

Exercise 4 txns

Insider Bunting Eric

Role Director

Type	Security	Shares	Price	Value
Other	Common Stock	150,000	$0.10	$15K
Other	Warrants F2	150,000	--	--
Conversion	Warrants	150,000	$0.10	$15K
Grant/Award	Options F1	333,333	--	--

Holdings After Transaction: Options — 555,557 contracts (Direct); Warrants — 555,557 contracts (Direct); Common Stock — 20,789,977 shares (Direct)

Footnotes (2)

1. F1. These stock options for the calendar year 2026 vest at the rate of 1/12 per month, effective 1/1/2026, with full vesting on 12/31/2026, and were issued in accordance with the Company's Director Compensation Policy.
2. F2. The reporting person acquired these warrants from an unrelated third party and were subsequently exercised by the reporting person on 08/27/2026.

Key Figures

Common stock acquired: 150,000 shares at $0.10 per share Common stock holdings after transaction: 20,789,977 shares Warrants acquired: 150,000 warrants +3 more

6 metrics

Common stock acquired 150,000 shares at $0.10 per share Acquisition on August 27, 2026

Common stock holdings after transaction 20,789,977 shares Directly held after August 27, 2026 acquisition

Warrants acquired 150,000 warrants Acquisition on August 25, 2026, each for one common share

Warrant conversion price $0.10 per share Conversion of 150,000 warrants into common stock

Stock options granted 333,333 options at $0.15 exercise price Grant effective January 1, 2026 under Director Compensation Policy

Option vesting schedule 1/12 per month; full vesting on December 31, 2026 2026 stock option grant to director

Key Terms

Conversion of derivative security, Director Compensation Policy, exercise price, underlying security

4 terms

Conversion of derivative security financial

"transaction_code_description: Conversion of derivative security"

Director Compensation Policy financial

"were issued in accordance with the Company's Director Compensation Policy"

exercise price financial

"conversion or exercise price: 0.1500"

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.

underlying security financial

"underlying_security_title: Common Stock"

FAQ

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

What common stock transaction did QSEP director Eric Bunting report?

Eric Bunting reported acquiring 150,000 shares of QS Energy, Inc. common stock on August 27, 2026 at $0.10 per share. After this transaction, his directly held common stock position was 20,789,977 shares.

How many warrants did QSEP director Eric Bunting acquire and convert?

Eric Bunting acquired 150,000 warrants on August 25, 2026, each convertible into one share of common stock at a $0.10 conversion price. These warrants covered 150,000 underlying common shares and were subsequently exercised into common stock.

What new stock options did QSEP (QSEP) grant to Eric Bunting?

On January 1, 2026, Eric Bunting received a grant of 333,333 stock options with a $0.15 per-share exercise price. The options vest at 1/12 per month from January 1, 2026, with full vesting on December 31, 2026.

What is Eric Bunting’s reported common stock holding in QSEP after these transactions?

Following the reported acquisition on August 27, 2026, Eric Bunting’s directly held common stock position in QS Energy, Inc. was 20,789,977 shares, as disclosed in the filing.

Were Eric Bunting’s QSEP transactions made under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is marked in a way that indicates the transactions were not affirmed as being made pursuant to a Rule 10b5-1 trading plan.

How do Eric Bunting’s 2026 stock options in QSEP vest?

The 2026 stock options vest at 1/12 per month, effective January 1, 2026, with full vesting on December 31, 2026. They were issued under the company’s Director Compensation Policy.

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 08/28/2026 - 04:32 PM EDT Accepted by SEC EDGAR 08/28/2026 - 04:31 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^*

Bunting Eric

(Last) (First) (Middle)

23902 FM 2978

(Street)

TOMBALL TEXAS 77375

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
QS Energy, Inc. [ QSEP ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
01/01/2026

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	08/27/2026	08/27/2026	J		150,000	A	$0.1	20,789,977	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
Options	$0.15	01/01/2026	01/01/2026	A		333,333		01/31/2026	01/01/2036	Common Stock	333,333	(1)	555,557	D
Warrants	$0.1	08/25/2026	08/25/2027	J		150,000		08/25/2026	06/08/2029	Common Stock	150,000	(2)	705,557	D
Warrants	$0.1	08/25/2026	08/25/2027	C			150,000	08/25/2026	06/08/2029	Common Stock	150,000	$0.1	555,557	D

Explanation of Responses:

1. These stock options for the calendar year 2026 vest at the rate of 1/12 per month, effective 1/1/2026, with full vesting on 12/31/2026, and were issued in accordance with the Company's Director Compensation Policy.

2. The reporting person acquired these warrants from an unrelated third party and were subsequently exercised by the reporting person on 08/27/2026.

	/s/ Eric Bunting	08/28/2026
	** 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)