Comparable stake leader
BlackRock, Inc.
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
18 Jun 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
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
18 Jun 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
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
18 Jun 2026
13F
13D/G
3/4/5
Lead comparable stake: 14%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 14%.
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 BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
14%
FMR LLC
14%
VANGUARD CAPITAL MANAGEMENT LLC
5.1%
PRIMECAP MANAGEMENT CO/CA/
4.7%
Daniel S. Shugar
0.85%
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 |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
14%
from 13D/G
|
$2,998,398,850
24,872,657 shares
|
— | 31 Mar 2026 |
| FMR LLC |
13F
13D/G
Company
|
14%
from 13D/G
|
$2,441,009,459
20,248,938 shares
|
— | 31 Mar 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
|
$815,020,105
6,760,847 shares
|
— | 31 Mar 2026 |
| Daniel S. Shugar |
3/4/5
Chief Executive Officer, Director
|
0.85%
|
$117,608,579
1,265,311 shares
|
-$18,154,850 | 18 Jun 2026 |
| Howard Wenger |
3/4/5
President, Director
|
0.29%
|
$58,965,465
431,044 shares
|
-$12,097,030 | 18 Jun 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
|
0.17%
|
$30,062,517
249,439 shares
|
-$830,126 | 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: -$46,547,897.
Buys
$0
Insiders: 0
Sells
$46,547,897
Insiders: 7
Net
-$46,547,897
Shares: -434,968
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 434,968
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 168,574 | $0 | $22,559,617 | -$22,559,617 |
| 3-6 | 0 | 108,848 | $0 | $11,328,786 | -$11,328,786 |
| 6-9 | 0 | 95,968 | $0 | $8,648,849 | -$8,648,849 |
| 9-12 | 0 | 61,578 | $0 | $4,010,645 | -$4,010,645 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 25 reporting-owner rows connected to Nextpower Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
25
Largest Forms 3/4/5 holder
TPG GP A, LLC
Net 12M change
-$46,547,897
Latest report
18 Jun 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 | $117,608,579 | -$18,154,850 | -13% | Mixed | 18 Jun 2026 |
| Howard Wenger | President, Director | $58,965,465 | -$12,097,030 | -17% | Mixed | 18 Jun 2026 |
| Charles D. Boynton | Chief Financial Officer | $54,416,715 | -$1,839,510 | -3.3% | Filing P/S | 01 Jun 2026 |
| Bruce Ledesma | Chief Legal & Compliance Ofc | $30,062,517 | -$830,126 | -2.7% | 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 2025 | ||
| William D. Watkins | Director | $1,831,750 | -$2,079,270 | -53% | Mixed | 30 Jan 2026 |
| David Scott Offer | Director | $1,659,767 | Mixed | 02 Jan 2024 | ||
| Michael P. Hartung | Director | $613,661 | Mixed | 02 Jan 2024 | ||
| Brandi Elizabeth Thomas | Director | $417,709 | Mixed | 19 Aug 2025 | ||
| Julia Blunden | Director | $282,324 | Mixed | 19 Aug 2025 | ||
| Jeffrey B. Guldner | Director | $195,776 | Mixed | 19 Aug 2025 | ||
| Rebecca Sidelinger | Director | $165,744 | Mixed | 02 Jan 2024 | ||
| Mark Menezes | Director | $25,454 | Mixed | 19 Aug 2025 | ||
| Monica Karuturi | Director | $25,454 | Mixed | 19 Aug 2025 | ||
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ||
| Howard Wenger | NXT | Common Stock | Sale | -1.78% | $1,095,352 | $121.02 | -9,051 | 499,531 | 22 May 2026 | Direct |
| Daniel S. Shugar | NXT | Common Stock | Other | -2.12% | -20,787 | 957,496 | 22 May 2026 | Direct | ||
| Nicholas Marco Miller | NXT | Common Stock | Other | -2.93% | -6,497 | 215,036 | 22 May 2026 | Direct | ||
| Bruce Ledesma | NXT | Common Stock | Other | -2.7% | -6,930 | 249,378 | 22 May 2026 | Direct | ||
| David P. Bennett | NXT | Common Stock | Other | -1.7% | -2,599 | 150,396 | 22 May 2026 | Direct | ||
| Charles D. Boynton | NXT | Common Stock | Other | -8.4% | -34,193 | 372,870 | 22 May 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Other | -19.7% | -124,497 | 508,582 | 21 May 2026 | Direct | ||
| Daniel S. Shugar | NXT | Common Stock | Other | -5.32% | -55,000 | 978,283 | 21 May 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Options Exercise | 24.5% | 124,497 | 633,079 | 20 May 2026 | Direct | ||
| Howard Wenger | NXT | Common Stock | Sale | -3.07% | $2,048,579 | $127.32 | -16,090 | 508,582 | 20 May 2026 | Direct |
| Howard Wenger | NXT | Stock Option (Right to Buy) | Options Exercise | -100% | -124,497 | 0 | 20 May 2026 | Direct | ||
| Daniel S. Shugar | NXT | Common Stock | Options Exercise | 5.62% | 55,000 | 1,033,283 | 20 May 2026 | Direct | ||
| Daniel S. Shugar | NXT | Stock Option (Right to Buy) | Options Exercise | -13.8% | -55,000 | 343,571 | 20 May 2026 | Direct | ||
| Nicholas Marco Miller | NXT | Common Stock | Sale | -9.96% | $3,120,741 | $127.32 | -24,511 | 221,533 | 20 May 2026 | Direct |
* marks a reported price that did not pass the local price check.