PRIMECAP reports 6.95M Nextpower (NXT) shares in amended 13G

Rhea-AI Filing Summary

PRIMECAP Management Co. filed an amended Schedule 13G reporting its beneficial ownership in Nextpower Inc. as of 12/31/2025. PRIMECAP reports beneficial ownership of 6,951,597 shares, representing 4.68% of Nextpower’s outstanding class.

The firm has sole power to vote 6,904,179 shares and sole power to dispose of 6,951,597 shares, with no shared voting or dispositive power. PRIMECAP certifies the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Nextpower.

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Nextpower Inc.

(Name of Issuer)

COM

(Title of Class of Securities)

65290E101

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 65290E101

1

Names of Reporting Persons

PRIMECAP MANAGEMENT CO/CA/

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 6,904,179.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 6,951,597.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,951,597.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.68 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Nextpower Inc.
(b)	Address of issuer's principal executive offices: 6200 Paseo Padre Parkway, Fremont, CALIFORNIA 94555
Item 2.
(a)	Name of person filing: PRIMECAP MANAGEMENT CO/CA/
(b)	Address or principal business office or, if none, residence: 177 EAST COLORADO BLVD. 11TH FLOOR PASADENA, California 91105
(c)	Citizenship: PRIMECAP MANAGEMENT CO/CA/ - UNITED STATES
(d)	Title of class of securities: COM
(e)	CUSIP No.: 65290E101
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 6,951,597
(b)	Percent of class: 4.68 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: PRIMECAP MANAGEMENT CO/CA/ - 6,904,179
	(ii) Shared power to vote or to direct the vote: PRIMECAP MANAGEMENT CO/CA/ - 0
	(iii) Sole power to dispose or to direct the disposition of: PRIMECAP MANAGEMENT CO/CA/ - 6,951,597
	(iv) Shared power to dispose or to direct the disposition of: PRIMECAP MANAGEMENT CO/CA/ - 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

PRIMECAP MANAGEMENT CO/CA/

Signature:	Jorge Antonio Rodriguez
Name/Title:	Deputy Chief Compliance Officer
Date:	02/10/2026

FAQ

What does PRIMECAP’s Schedule 13G/A filing reveal about Nextpower Inc. (NXT)?

The filing shows PRIMECAP Management Co. beneficially owns 6,951,597 Nextpower shares, or 4.68% of the class, as of December 31, 2025. It reports sole voting power over 6,904,179 shares and sole dispositive power over all 6,951,597 shares.

How many Nextpower Inc. (NXT) shares does PRIMECAP beneficially own?

PRIMECAP Management Co. reports beneficial ownership of 6,951,597 Nextpower shares. This stake represents 4.68% of the outstanding class as disclosed in the filing. The firm also notes it has sole dispositive power over the same 6,951,597 shares with no shared authority.

What percentage of Nextpower Inc. (NXT) does PRIMECAP own according to this filing?

PRIMECAP Management Co. reports owning 4.68% of Nextpower Inc.’s class of securities. This percentage is based on 6,951,597 shares beneficially owned as of December 31, 2025, and is explicitly stated under the ownership section of the Schedule 13G/A amendment.

Does PRIMECAP seek to influence control of Nextpower Inc. (NXT)?

PRIMECAP certifies the securities were acquired and are held in the ordinary course of business. It states they were not acquired and are not held to change or influence control of Nextpower, nor in connection with any transaction having that control-related purpose or effect.

What voting and dispositive powers does PRIMECAP have over Nextpower Inc. (NXT) shares?

PRIMECAP has sole voting power over 6,904,179 Nextpower shares and no shared voting power. It also has sole dispositive power over 6,951,597 shares and no shared dispositive power, meaning it alone decides how these reported shares are voted and disposed of.

Why is PRIMECAP’s Nextpower Inc. (NXT) stake labeled as 5 percent or less?

The filing’s ownership section notes that PRIMECAP’s stake is 5 percent or less of the class. Its 6,951,597 shares represent 4.68% of Nextpower’s outstanding securities, placing the position below the 5% threshold while still requiring Schedule 13G reporting.