Howard Wenger - 20 May 2026 Form 4 Insider Report for Nextpower Inc. (NXT)

Reporting relationship: President, Director
Issuer ticker: NXT
Reported as of: 20 May 2026
Net transaction value: -$2,048,579
SEC form: 4
Accepted by SEC: 22 May 2026, 20:17:51 UTC
Prior SEC filing: 20 May 2026
Next SEC filing: 26 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Philip Reuther, as attorney-in-fact for Howard Wenger

Key filing fact

Howard Wenger filed Form 4 for Nextpower Inc. (NXT) on 22 May 2026.

Key facts

This page summarizes Howard Wenger's Form 4 filing for Nextpower Inc. (NXT).
10 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 22 May 2026, 20:17.

Change

Previous filing in this sequence was filed on 20 May 2026.
Current net transaction value: -$2,048,579.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001387222 Primary reporting owner

Wenger Howard

Relationship: President, Director
Address: C/O NEXTPOWER INC., 6200 PASEO PADRE PARKWAY, FREMONT
Signature: /s/ Philip Reuther, as attorney-in-fact for Howard Wenger
Signature date: 22 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NXT transaction

Common Stock

Sale

Transaction value: $2,048,579
Shares: -16,090
Change %: -3.1%
Price: $127.32
Shares after: 508,582
Date: 20 May 2026
Ownership: Direct
Footnotes: F1

NXT transaction

Common Stock

Options Exercise

Transaction value
Shares: +124,497
Change %: +24%
Price: $21.00^*
Shares after: 633,079
Date: 20 May 2026
Ownership: Direct
Footnotes: F2, F3

NXT transaction

Common Stock

Other

Transaction value
Shares: -15,568
Change %: -2.5%
Price: $119.99^*
Shares after: 617,511
Date: 21 May 2026
Ownership: Direct
Footnotes: F3, F4

NXT transaction

Common Stock

Other

Transaction value
Shares: -37,412
Change %: -6.1%
Price: $121.07^*
Shares after: 580,099
Date: 21 May 2026
Ownership: Direct
Footnotes: F3, F5

NXT transaction

Common Stock

Other

Transaction value
Shares: -44,828
Change %: -7.7%
Price: $121.94^*
Shares after: 535,271
Date: 21 May 2026
Ownership: Direct
Footnotes: F3, F6

NXT transaction

Common Stock

Other

Transaction value
Shares: -21,528
Change %: -4%
Price: $122.82^*
Shares after: 513,743
Date: 21 May 2026
Ownership: Direct
Footnotes: F3, F7

NXT transaction

Common Stock

Other

Transaction value
Shares: -3,747
Change %: -0.73%
Price: $124.18^*
Shares after: 509,996
Date: 21 May 2026
Ownership: Direct
Footnotes: F3, F8

NXT transaction

Common Stock

Other

Transaction value
Shares: -1,314
Change %: -0.26%
Price: $124.89^*
Shares after: 508,682
Date: 21 May 2026
Ownership: Direct
Footnotes: F3, F9

NXT transaction

Common Stock

Other

Transaction value
Shares: -100
Change %: -0.02%
Price: $125.66^*
Shares after: 508,582
Date: 21 May 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

NXT transaction Derivative

Stock Option (Right to Buy)

Options Exercise

Transaction value
Shares: -124,497
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 20 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 124,497
Exercise price: $21.00
Footnotes: F2, F10

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 10 footnotes

Footnote F1

The sale reported in this Form 4 was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on August 18, 2025.

Footnote F2

Reflects an award of performance-based options ("Performance Options") to purchase shares of the Issuer's common stock ("Common Stock") that vested and became exercisable as of April 1, 2026 upon the achievement of both a continuous service requirement and the achievement of certain Nextpower equity valuation growth conditions. These Performance Options contain unique restrictions which (i) provide a limited period of time following vesting to exercise such Performance Options (i.e., by no later than March 15, 2027) or otherwise such Performance Options terminate and (ii) cap the maximum "gain" value realizable by Mr. Wenger upon exercise of the total award of Performance Options at 250% of the aggregate exercise price (the "Max Benefit Limit").

Footnote F3

The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on August 18, 2025. A portion of this sale includes the sale of shares of Common Stock required to be sold in order to satisfy the exercise price and tax withholding obligations in connection with the exercise of the Performance Options.

Footnote F4

The price reported in Column 4 is a weighted average price. The reported securities were sold in multiple transactions at prices ranging from $119.46 to $120.43, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission (SEC), upon request, full information regarding the number of shares sold at each separate price within such ranges.

Footnote F5

The price reported in Column 4 is a weighted average price. The reported securities were sold in multiple transactions at prices ranging from $120.47 to $121.46, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission (SEC), upon request, full information regarding the number of shares sold at each separate price within such ranges.

Footnote F6

The price reported in Column 4 is a weighted average price. The reported securities were sold in multiple transactions at prices ranging from $121.47 to $122.46, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission (SEC), upon request, full information regarding the number of shares sold at each separate price within such ranges.

Footnote F7

The price reported in Column 4 is a weighted average price. The reported securities were sold in multiple transactions at prices ranging from $122.47 to $123.46, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission (SEC), upon request, full information regarding the number of shares sold at each separate price within such ranges.

Footnote F8

The price reported in Column 4 is a weighted average price. The reported securities were sold in multiple transactions at prices ranging from $123.49 to $124.48, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission (SEC), upon request, full information regarding the number of shares sold at each separate price within such ranges.

Footnote F9

The price reported in Column 4 is a weighted average price. The reported securities were sold in multiple transactions at prices ranging from $124.58 to $125.34, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission (SEC), upon request, full information regarding the number of shares sold at each separate price within such ranges.

Footnote F10

As a result of the application of the Max Benefit Limit, 123,122 Performance Options were forfeited and cancelled without any consideration.