Comparable stake leader
FMR LLC
SEC ownership of Nextpower Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001852131.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
11 Aug 2026
- Public ticker
- NXT on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
FMR LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
FMR LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
11 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001852131
- Issuer location
- Fremont, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Nextpower Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
FMR LLC
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
11 Aug 2026
13F
13D/G
3/4/5
Lead comparable stake: 12%
13D/G row: FMR LLC
Showing 1-8 of 50 holder rows.
Quick read
FMR LLC leads the comparable SEC ownership view at 12%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens FMR LLC's linked filing trail.
Comparable ownership
Top 5
FMR LLC
12%
BlackRock, Inc.
12%
VANGUARD CAPITAL MANAGEMENT LLC
5.1%
PRIMECAP MANAGEMENT CO/CA/
4.7%
Daniel S. Shugar
0.79%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| FMR LLC |
13F
13D/G
Company
|
12%
from 13D/G
|
$2,234,275,260
18,753,360 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
12%
from 13D/G
|
$2,518,689,641
21,140,588 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.1%
|
$908,361,971
7,535,147 shares
|
$0 | 31 Mar 2026 |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
13D/G
Company
|
4.7%
from 13D/G
|
$796,899,701
6,688,767 shares
|
— | 30 Jun 2026 |
| Daniel S. Shugar |
3/4/5
Chief Executive Officer, Director
|
0.79%
|
$92,701,659
1,197,675 shares
|
-$25,125,876 | 10 Aug 2026 |
| Howard Wenger |
3/4/5
President, Director
|
0.28%
|
$43,993,769
419,868 shares
|
-$12,868,842 | 11 Aug 2026 |
| Charles D. Boynton |
3/4/5
Chief Financial Officer
|
0.24%
|
$54,416,715
358,500 shares
|
-$1,839,510 | 01 Jun 2026 |
| Bruce Ledesma |
3/4/5
Chief Legal & Compliance Ofc
|
0.16%
|
$30,062,517
249,439 shares
|
-$437,571 | 18 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$54,867,857.
Buys
$0
Insiders: 0
Sells
$54,867,857
Insiders: 9
Net
-$54,867,857
Shares: -508,216
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 508,216
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 122,858 | $0 | $13,861,292 | -$13,861,292 |
| 3-6 | 0 | 245,495 | $0 | $29,113,886 | -$29,113,886 |
| 6-9 | 0 | 43,225 | $0 | $3,965,333 | -$3,965,333 |
| 9-12 | 0 | 96,638 | $0 | $7,927,346 | -$7,927,346 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 26 reporting-owner rows connected to Nextpower Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
26
Largest Forms 3/4/5 holder
TPG GP A, LLC
Net 12M change
-$54,867,858
Latest report
21 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| TPG GP A, LLC | 10%+ Owner | $478,318,166 | Mixed | 05 Feb 2024 | ||
| Daniel S. Shugar | Chief Executive Officer, Director | $92,701,659 | -$25,125,876 | -21% | Mixed | 10 Aug 2026 |
| Charles D. Boynton | Chief Financial Officer | $54,416,715 | -$1,839,510 | -3.3% | Filing P/S | 01 Jun 2026 |
| Howard Wenger | President, Director | $43,993,769 | -$12,868,842 | -23% | Filing P/S | 11 Aug 2026 |
| Bruce Ledesma | Chief Legal & Compliance Ofc | $30,062,517 | -$437,571 | -1.4% | Mixed | 18 Jun 2026 |
| Nicholas Marco Miller | Chief Operating Officer | $29,046,264 | -$6,619,353 | -19% | Filing P/S | 29 May 2026 |
| David P. Bennett | Chief Accounting Officer | $18,130,237 | -$4,927,758 | -21% | Mixed | 18 Jun 2026 |
| Leah Schlesinger | GC, Ch Eth & Compl Off'r & Sec | $7,747,018 | Mixed | 30 Jun 2024 | ||
| Paul Lundstrom | Director | $2,210,812 | Mixed | 02 Jan 2024 | ||
| Willy C. Shih | Director | $2,172,557 | Mixed | 19 Aug 2026 | ||
| William D. Watkins | Director | $1,831,750 | -$1,511,370 | -45% | Mixed | 19 Aug 2026 |
| David Scott Offer | Director | $1,659,767 | Mixed | 02 Jan 2024 | ||
| Brandi Elizabeth Thomas | Director | $722,152 | -$676,619 | -48% | Filing P/S | 19 Aug 2026 |
| Michael P. Hartung | Director | $613,661 | Mixed | 02 Jan 2024 | ||
| Julia Blunden | Director | $230,604 | -$860,959 | -79% | Filing P/S | 21 Aug 2026 |
| Jeffrey B. Guldner | Director | $195,776 | Mixed | 19 Aug 2026 | ||
| Rebecca Sidelinger | Director | $165,744 | Mixed | 02 Jan 2024 | ||
| Mark Menezes | Director | $25,454 | Mixed | 19 Aug 2026 | ||
| Monica Karuturi | Director | $25,454 | Mixed | 19 Aug 2026 | ||
| Robert Vinje | Chief Operating Officer | Mixed | 15 Jun 2026 |
Recent insider transactions for Nextpower Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Julia Blunden | NXT | Common Stock | Sale | -57.4% | $310,501 | $84.10 | -3,692 | 2,742 | 24 Aug 2026 | Direct |
| Julia Blunden | NXT | Common Stock | Sale | -36.6% | $327,922 | $88.08 | -3,723 | 6,434 | 21 Aug 2026 | Direct |
| Brandi Elizabeth Thomas | NXT | Common Stock | Sale | -48.4% | $676,619 | $91.25 | -7,415 | 7,914 | 19 Aug 2026 | Direct |
| Monica Karuturi | NXT | Common Stock | Award | 66.7% | 2,742 | 6,853 | 19 Aug 2026 | Direct | ||
| William D. Watkins | NXT | Common Stock | Award | 29.3% | 3,455 | 15,232 | 19 Aug 2026 | Direct | ||
| Brandi Elizabeth Thomas | NXT | Common Stock | Award | 21.8% | 2,742 | 15,329 | 19 Aug 2026 | Direct | ||
| Willy C. Shih | NXT | Common Stock | Award | 5.49% | 2,742 | 52,698 | 19 Aug 2026 | Direct | ||
| Mark Menezes | NXT | Common Stock | Award | 66.7% | 2,742 | 6,853 | 19 Aug 2026 | Direct | ||
| Jeffrey B. Guldner | NXT | Common Stock | Award | 34.9% | 2,742 | 10,603 | 19 Aug 2026 | Direct | ||
| Julia Blunden | NXT | Common Stock | Award | 37% | 2,742 | 10,157 | 19 Aug 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Sale | -2.59% | $1,171,021 | $104.78 | -11,176 | 419,868 | 11 Aug 2026 | Direct |
| Daniel S. Shugar | NXT | Common Stock | Sale | -7.2% | $6,971,025 | $103.07 | -67,636 | 871,131 | 10 Aug 2026 | Direct |
| Julia Blunden | NXT | Common Stock | Sale | -23.6% | $222,537 | $97.22 | -2,289 | 7,415 | 05 Aug 2026 | Direct |
| Lindsey Roon Wiedmann | NXT | Common Stock | Award | 13,898 | 13,898 | 20 Jul 2026 | Direct | |||
| Bruce Ledesma | NXT | Common Stock | Other | -4.02% | -10,436 | 249,439 | 22 Jun 2026 | Direct | ||
| Daniel S. Shugar | NXT | Common Stock | Other | -3.1% | -30,077 | 938,767 | 22 Jun 2026 | Direct | ||
| David P. Bennett | NXT | Common Stock | Other | -7.66% | -13,368 | 161,201 | 22 Jun 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Other | -3.59% | -16,041 | 431,044 | 22 Jun 2026 | Direct | ||
| Bruce Ledesma | NXT | Common Stock | Options Exercise | 8.49% | 20,326 | 259,875 | 18 Jun 2026 | Direct | ||
| Bruce Ledesma | NXT | Restricted Stock Units | Options Exercise | -100% | -20,326 | 0 | 18 Jun 2026 | Direct | ||
| Daniel S. Shugar | NXT | Common Stock | Options Exercise | 6.27% | 57,165 | 968,844 | 18 Jun 2026 | Direct | ||
| Daniel S. Shugar | NXT | Restricted Stock Units | Options Exercise | -100% | -57,165 | 0 | 18 Jun 2026 | Direct | ||
| David P. Bennett | NXT | Common Stock | Options Exercise | 17% | 25,407 | 174,569 | 18 Jun 2026 | Direct | ||
| David P. Bennett | NXT | Restricted Stock Units | Options Exercise | -100% | -25,407 | 0 | 18 Jun 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Options Exercise | 7.32% | 30,488 | 447,085 | 18 Jun 2026 | Direct | ||
| Howard Wenger | NXT | Restricted Stock Units | Options Exercise | -100% | -30,488 | 0 | 18 Jun 2026 | Direct | ||
| Robert Vinje | NXT | Common Stock | Award | 15,262 | 15,262 | 15 Jun 2026 | Direct | |||
| Daniel S. Shugar | NXT | Common Stock | Other | -2.29% | -21,402 | 911,679 | 05 Jun 2026 | Direct | ||
| Daniel S. Shugar | NXT | Common Stock | Options Exercise | 2.35% | 21,402 | 933,081 | 04 Jun 2026 | Direct | ||
| Daniel S. Shugar | NXT | Stock Option (Right to Buy) | Options Exercise | -100% | -21,402 | 0 | 04 Jun 2026 | Direct | ||
| Charles D. Boynton | NXT | Common Stock | Sale | -1.24% | $683,055 | $151.79 | -4,500 | 358,500 | 01 Jun 2026 | Direct |
| Daniel S. Shugar | NXT | Common Stock | Other | -5.69% | -55,000 | 911,679 | 01 Jun 2026 | Direct | ||
| Daniel S. Shugar | NXT | Common Stock | Options Exercise | 6.03% | 55,000 | 966,679 | 29 May 2026 | Direct | ||
| Daniel S. Shugar | NXT | Stock Option (Right to Buy) | Options Exercise | -19.1% | -55,000 | 233,571 | 29 May 2026 | Direct | ||
| Nicholas Marco Miller | NXT | Common Stock | Sale | -10.8% | $3,498,612 | $156.00 | -22,427 | 186,194 | 29 May 2026 | Direct |
| Daniel S. Shugar | NXT | Common Stock | Other | -5.69% | -55,000 | 911,679 | 27 May 2026 | Direct | ||
| Daniel S. Shugar | NXT | Common Stock | Options Exercise | 6.03% | 55,000 | 966,679 | 26 May 2026 | Direct | ||
| Daniel S. Shugar | NXT | Stock Option (Right to Buy) | Options Exercise | -16% | -55,000 | 288,571 | 26 May 2026 | Direct | ||
| Nicholas Marco Miller | NXT | Common Stock | Other | -25.1% | -69,885 | 208,621 | 26 May 2026 | Direct | ||
| Charles D. Boynton | NXT | Common Stock | Other | -2.65% | -9,870 | 363,000 | 26 May 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Other | -2.31% | -9,870 | 416,597 | 26 May 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Sale | -12.8% | $8,162,614 | $130.25 | -62,670 | 426,467 | 26 May 2026 | Direct |
| Daniel S. Shugar | NXT | Common Stock | Other | -2.12% | -19,740 | 911,679 | 26 May 2026 | Direct | ||
| Daniel S. Shugar | NXT | Common Stock | Sale | -2.72% | $3,513,093 | $134.72 | -26,077 | 931,419 | 26 May 2026 | Direct |
| Bruce Ledesma | NXT | Common Stock | Other | -2.67% | -6,581 | 239,549 | 26 May 2026 | Direct | ||
| Bruce Ledesma | NXT | Common Stock | Sale | -1.3% | $437,571 | $134.72 | -3,248 | 246,130 | 26 May 2026 | Direct |
| David P. Bennett | NXT | Common Stock | Other | -0.82% | -1,234 | 149,162 | 26 May 2026 | Direct | ||
| Nicholas Marco Miller | NXT | Common Stock | Options Exercise | 29.5% | 63,470 | 278,506 | 22 May 2026 | Direct | ||
| Nicholas Marco Miller | NXT | Stock Option (Right to Buy) | Options Exercise | -100% | -63,470 | 0 | 22 May 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Other | -2.08% | -10,394 | 489,137 | 22 May 2026 | Direct |
* marks a reported price that did not pass the local price check.