Tax-driven stock sale by Nextpower (NXT) CFO under Rule 10b5-1

Rhea-AI Filing Summary

Nextpower Inc. Chief Financial Officer Charles D. Boynton reported a mandatory share sale tied to tax withholding. On May 22, 2026, 34,193 shares of common stock were sold at $125.81 per share to satisfy taxes from vesting and conversion of RSUs.

These transactions were required under the company’s "sell-to-cover" policy adopted on March 2, 2023 pursuant to Rule 10b5-1 and its equity incentive plan, and are described as non-discretionary for the reporting person. After this activity, Boynton directly held 372,870 shares of Nextpower common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider BOYNTON CHARLES D

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Other	Common Stock	34,193	$125.81	$4.30M

Holdings After Transaction: Common Stock — 372,870 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 34,193 shares Sale price: $125.81 per share Shares held after transaction: 372,870 shares +1 more

4 metrics

Shares sold 34,193 shares Sell-to-cover RSU tax withholding on May 22, 2026

Sale price $125.81 per share Price for the reported sell-to-cover transaction

Shares held after transaction 372,870 shares CFO direct ownership following the transaction

Policy adoption date March 2, 2023 Adoption of Rule 10b5-1 sell-to-cover policy

Key Terms

sell-to-cover, RSUs, Rule 10b5-1, equity incentive plan

4 terms

sell-to-cover financial

"Reflects the number of shares required to be sold pursuant to a "sell-to-cover" transaction"

Sell-to-cover is when part of newly issued or exercised company stock is immediately sold to pay required taxes and fees, so the recipient keeps the remaining shares. For investors this matters because it reduces the number of shares insiders or employees actually hold after a grant, can create small, routine share sales that aren’t signal of cashing out, and slightly increases share supply on the market—like selling a portion of a paycheck to cover the tax bill.

RSUs financial

"in connection with the vesting and conversion of RSUs"

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

Rule 10b5-1 regulatory

"policy adopted by the Issuer on March 2, 2023 pursuant to the requirements of Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

equity incentive plan financial

"under its equity incentive plan, and do not represent discretionary trades"

An equity incentive plan is a program that gives employees, executives or directors the right to receive company stock or options to buy stock as part of their pay. Think of it as offering slices of future company profit to motivate people to boost long‑term performance; for investors it matters because it can align employee goals with shareholder value but also increases the number of shares outstanding, which can dilute existing ownership.

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^*

BOYNTON CHARLES D

(Last) (First) (Middle)

C/O NEXTPOWER INC.

6200 PASEO PADRE PARKWAY

(Street)

FREMONT CALIFORNIA 94555

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Nextpower Inc. [ NXT ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026

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	05/22/2026		J(1)		34,193(1)	D	$125.81	372,870	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

Explanation of Responses:

1. Reflects the number of shares required to be sold pursuant to a "sell-to-cover" transaction in order to satisfy the tax withholding obligations in connection with the vesting and conversion of RSUs. These sales are mandated by the Issuer's "sell-to-cover" policy adopted by the Issuer on March 2, 2023 pursuant to the requirements of Rule 10b5-1 and its authority under its equity incentive plan, and do not represent discretionary trades by the Reporting Person.

	/s/ Philip Reuther, as attorney-in-fact for Charles Boynton	05/26/2026
	** 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 insider transaction did Nextpower (NXT) report for its CFO?

Nextpower CFO Charles D. Boynton reported a mandatory sale of 34,193 common shares. The sale was to cover tax withholding from RSU vesting and is described as non-discretionary under the company’s equity incentive plan and sell-to-cover policy.

At what price were the Nextpower (NXT) shares sold in the CFO’s transaction?

The reported 34,193 Nextpower common shares were sold at $125.81 per share. This price applies to the tax-related sell-to-cover transaction linked to the vesting and conversion of restricted stock units (RSUs) for the company’s Chief Financial Officer.

How many Nextpower (NXT) shares does the CFO hold after this Form 4?

Following the reported tax-related sale, CFO Charles D. Boynton directly holds 372,870 Nextpower common shares. This post-transaction figure is disclosed in the filing and reflects his remaining direct ownership after satisfying the RSU tax withholding obligation.

Was the Nextpower (NXT) CFO’s share sale discretionary?

The filing states the CFO’s sale was not discretionary. It was mandated by Nextpower’s sell-to-cover policy, adopted March 2, 2023 under Rule 10b5-1 and the company’s equity incentive plan, solely to satisfy tax withholding on RSU vesting.

What is the purpose of the sell-to-cover transaction reported by Nextpower (NXT)?

The sell-to-cover transaction’s purpose was to satisfy tax withholding obligations from vesting and conversion of RSUs. Nextpower’s policy requires selling enough shares to cover taxes, so the CFO’s reported sale reflects this automatic mechanism rather than an elective market trade.