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Nextpower Inc. (NXT) COO executes Rule 10b5-1 stock sale, keeps large stake

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Nextpower Inc. Chief Operating Officer Nicholas Marco Miller sold 22,427 shares of Common Stock in an open-market transaction on May 29, 2026 at $156.00 per share. The sale was made under a pre-arranged Rule 10b5-1 trading plan adopted on December 12, 2025. Following this transaction, he directly holds 186,194 shares of Nextpower Inc. common stock.

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Insights

COO executes pre-planned stock sale, retains substantial stake.

Chief Operating Officer Nicholas Marco Miller completed an open-market sale of 22,427 shares of Nextpower Inc. Common Stock at $156.00 per share on May 29, 2026. This is a discretionary sale rather than option exercise or tax withholding.

The filing shows he continues to own 186,194 shares directly after the trade, indicating a sizable remaining position. A footnote states the sale was effected under a Rule 10b5-1 trading plan adopted on December 12, 2025, suggesting the timing was pre-scheduled rather than opportunistic.

Because the transaction is both pre-planned and leaves a large ongoing holding, it typically carries limited informational value about management’s view of the company. Future Form 4 filings will provide additional visibility into any ongoing activity under this 10b5-1 plan.

Insider Miller Nicholas Marco
Role Chief Operating Officer
Sold 22,427 shs ($3.50M)
Type Security Shares Price Value
Sale Common Stock 22,427 $156.00 $3.50M
Holdings After Transaction: Common Stock — 186,194 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Shares sold 22,427 shares Open-market sale of Common Stock on May 29, 2026
Sale price $156.00 per share Price for the May 29, 2026 open-market sale
Shares owned after sale 186,194 shares Direct Common Stock holdings following the transaction
Rule 10b5-1 plan adoption date December 12, 2025 Date the trading plan governing this sale was adopted
Rule 10b5-1 trading plan regulatory
"The sale reported in this Form 4 was effected pursuant to a 10b5-1 trading plan adopted..."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Common Stock financial
""security_title": "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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).
X
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*
Miller Nicholas Marco
(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Operating Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/29/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock05/29/2026S(1)22,427(1)D$156186,194D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The sale reported in this Form 4 was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 12, 2025.
/s/ Philip Reuther, as attorney-in-fact for Nicholas Marco Miller06/01/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Nextpower Inc. (NXT) report for its COO?

Nextpower Inc. reported that COO Nicholas Marco Miller sold 22,427 shares of Common Stock in an open-market transaction at $156.00 per share. After this sale, he directly owns 186,194 shares, indicating he maintains a substantial equity stake in the company.

At what price did the Nextpower Inc. (NXT) COO sell shares and on what date?

The COO of Nextpower Inc., Nicholas Marco Miller, sold 22,427 shares at $156.00 per share on May 29, 2026. This was an open-market sale of Common Stock reported in his Form 4 insider trading disclosure.

How many Nextpower Inc. (NXT) shares does the COO hold after the reported sale?

Following the reported transaction, COO Nicholas Marco Miller directly holds 186,194 shares of Nextpower Inc. Common Stock. This post-transaction holding shows he retains a significant personal exposure to the company’s equity despite the recent open-market sale.

Was the Nextpower Inc. (NXT) COO’s stock sale made under a Rule 10b5-1 plan?

Yes. The Form 4 states the sale was effected pursuant to a Rule 10b5-1 trading plan adopted on December 12, 2025. Such plans pre-schedule trades, reducing the significance of transaction timing as a signal of the insider’s near-term market views.

Does the Form 4 suggest the Nextpower Inc. (NXT) COO is exiting his position?

The Form 4 does not indicate an exit. After selling 22,427 shares at $156.00 per share, COO Nicholas Marco Miller still directly owns 186,194 shares. This remaining position indicates he continues to hold a substantial stake in Nextpower Inc.