Comparable stake leader
BlackRock, Inc.
SEC ownership of POWER INTEGRATIONS INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000833640.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
29 May 2026
- Public ticker
- POWI on Nasdaq
- Parsed ownership sources
- 13F, 13D/G, and 3/4/5
- Largest SEC-reported holder
- BlackRock, Inc.
- Latest 13D/G holder
- BlackRock, Inc.
- Latest parsed ownership date
- 29 May 2026
- Issuer CIK
- 0000833640
- Issuer location
- San Jose, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of POWER INTEGRATIONS 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
29 May 2026
13F
13D/G
3/4/5
Lead comparable stake: 15%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 15%.
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.
15%
VANGUARD PORTFOLIO MANAGEMENT LLC
9%
STATE STREET CORP
6.1%
WELLINGTON MANAGEMENT GROUP LLP
6%
VANGUARD CAPITAL MANAGEMENT LLC
5.3%
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
|
15%
from 13D/G
|
$436,313,550
8,521,749 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
9%
|
$257,221,069
5,023,849 shares
|
$0 | 31 Mar 2026 |
| STATE STREET CORP |
13F
13D/G
Company · STATE STREET CORPORATION
|
6.1%
from 13D/G
|
$157,585,562
3,077,843 shares
|
— | 31 Mar 2026 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
Company
|
6%
|
$183,011,023
3,356,153 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.3%
|
$150,141,850
2,932,458 shares
|
$0 | 31 Mar 2026 |
| Neuberger Berman Group LLC |
13F
13D/G
Company
|
4.5%
from 13D/G
|
$201,374,662
3,933,099 shares
|
— | 31 Mar 2026 |
| Balu Balakrishnan |
3/4/5
Director
|
0.5%
|
$24,331,728
279,516 shares
|
-$25,486,554 | 28 May 2026 |
| Jennifer A. Lloyd |
3/4/5
President and CEO
|
0.27%
|
$6,972,918
149,345 shares
|
-$154,705 | 27 Feb 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: -$31,586,218.
Buys
$0
Insiders: 0
Sells
$31,586,218
Insiders: 7
Net
-$31,586,218
Shares: -426,632
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 426,632
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 335,085 | $0 | $27,339,224 | -$27,339,224 |
| 3-6 | 0 | 38,825 | $0 | $1,795,466 | -$1,795,466 |
| 6-9 | 0 | 1,710 | $0 | $62,695 | -$62,695 |
| 9-12 | 0 | 51,012 | $0 | $2,388,832 | -$2,388,832 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 23 reporting-owner rows connected to POWER INTEGRATIONS INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
23
Largest Forms 3/4/5 holder
Balu Balakrishnan
Net 12M change
-$31,586,218
Latest report
29 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Balu Balakrishnan | Director | $24,331,728 | -$25,486,554 | -51% | Filing P/S | 28 May 2026 |
| Clifford Walker | VP Corporate Development | $7,213,953 | Filing P/S | 02 Apr 2025 | ||
| Jennifer A. Lloyd | President and CEO | $6,972,918 | -$154,705 | -2.2% | Mixed | 27 Feb 2026 |
| Sandeep Nayyar | Chief Financial Officer | $5,463,043 | Filing P/S | 02 Apr 2025 | ||
| Sunil Gupta | Sr. Vice President, Operations | $5,386,442 | -$2,102,749 | -28% | Filing P/S | 29 May 2026 |
| William George | Director | $5,177,411 | Mixed | 01 Jul 2022 | ||
| David Mh Matthews | Chief Technical Officer | $4,146,111 | Filing P/S | 28 May 2024 | ||
| Yang Chiah Yee | VP, Worldwide Sales | $3,350,905 | Filing P/S | 17 Jun 2024 | ||
| Nancy Erba | Chief Financial Officer | $2,291,887 | Mixed | 02 Feb 2026 | ||
| Radu Barsan | VP of Technology, Engineering | $2,219,831 | Filing P/S | 02 Apr 2025 | ||
| Steven Sharp | Director | $1,968,398 | Mixed | 17 Nov 2021 | ||
| Nicholas Brathwaite | Director | $1,925,216 | -$1,199,413 | -38% | Filing P/S | 27 May 2026 |
| Doug Bailey | Former VP Marketing | $1,696,157 | -$2,295,073 | -58% | Filing P/S | 22 Aug 2025 |
| Michael Balow | Sr. VP, Worldwide Sales | $1,677,721 | Median | 15 May 2026 | ||
| Balakrishnan S. Iyer | Director | $1,403,223 | Mixed | 01 Jul 2025 | ||
| Gagan Jain | VP, Worldwide Sales | $1,327,077 | -$343,300 | -21% | Filing P/S | 02 Apr 2026 |
| Wendy Arienzo | Director | $1,009,199 | Mixed | 01 Jul 2025 | ||
| Anita Ganti | Director | $721,022 | Mixed | 01 Jul 2025 | ||
| Nancy Lee Gioia | Director | $423,386 | Mixed | 01 Jul 2025 | ||
| Ravi Vig | Director | $395,474 | Mixed | 01 Jul 2025 |
Recent insider transactions for POWER INTEGRATIONS 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Sunil Gupta | POWI | Common Stock | Sale | -9.63% | $573,960 | $83.67 | -6,860 | 64,379 | 29 May 2026 | Direct |
| Balu Balakrishnan | POWI | Common Stock | Sale | -30.8% | $10,743,130 | $86.44 | -124,287 | 279,516 | 28 May 2026 | by Trust |
| Nicholas Brathwaite | POWI | Common Stock | Sale | -7.21% | $149,679 | $86.62 | -1,728 | 22,226 | 27 May 2026 | Direct |
| Sunil Gupta | POWI | Common Stock | Sale | -18.2% | $1,306,245 | $82.18 | -15,894 | 71,239 | 26 May 2026 | Direct |
| Nicholas Brathwaite | POWI | Common Stock | Sale | -21.7% | $550,462 | $82.71 | -6,655 | 23,954 | 26 May 2026 | Direct |
| Balu Balakrishnan | POWI | Common Stock | Sale | -22.7% | $9,690,190 | $81.72 | -118,573 | 403,803 | 26 May 2026 | by Trust |
| Balu Balakrishnan | POWI | Common Stock | Sale | -9.35% | $3,810,033 | $70.71 | -53,880 | 522,376 | 21 May 2026 | by Trust |
| Michael Balow | POWI | Common Stock | Award | 32,768 | 32,768 | 15 May 2026 | Direct | |||
| Nicholas Brathwaite | POWI | Common Stock | Sale | -18.4% | $499,272 | $72.41 | -6,895 | 30,609 | 13 May 2026 | Direct |
| Gagan Jain | POWI | Common Stock | Sale | -1.21% | $16,254 | $51.93 | -313 | 25,556 | 02 Apr 2026 | Direct |
| Jennifer A. Lloyd | POWI | Common Stock | Award | 95.7% | 73,038 | 149,345 | 27 Feb 2026 | Direct | ||
| Gagan Jain | POWI | Common Stock | Sale | -10.2% | $167,859 | $48.22 | -3,481 | 30,769 | 25 Feb 2026 | Direct |
| Balu Balakrishnan | POWI | Common Stock | Sale | -0.86% | $235,752 | $47.20 | -4,995 | 576,256 | 10 Feb 2026 | by Trust |
| Sunil Gupta | POWI | Common Stock | Sale | -1.3% | $58,474 | $45.97 | -1,272 | 96,933 | 10 Feb 2026 | Direct |
| Balu Balakrishnan | POWI | Common Stock | Sale | -1.08% | $296,302 | $46.53 | -6,368 | 581,251 | 09 Feb 2026 | by Trust |
| Jennifer A. Lloyd | POWI | Common Stock | Sale | -4.17% | $154,705 | $46.57 | -3,322 | 76,307 | 09 Feb 2026 | Direct |
| Sunil Gupta | POWI | Common Stock | Sale | -1.41% | $65,244 | $46.57 | -1,401 | 98,205 | 09 Feb 2026 | Direct |
| Gagan Jain | POWI | Common Stock | Disposed to Issuer | -2.67% | -938 | 34,250 | 09 Feb 2026 | Direct | ||
| Balu Balakrishnan | POWI | Common Stock | Award | 2.14% | 12,288 | 587,619 | 06 Feb 2026 | by Trust | ||
| Jennifer A. Lloyd | POWI | Common Stock | Award | 7.98% | 5,885 | 79,629 | 06 Feb 2026 | Direct | ||
| Sunil Gupta | POWI | Common Stock | Award | 4.01% | 3,840 | 99,606 | 06 Feb 2026 | Direct | ||
| Gagan Jain | POWI | Common Stock | Award | 7.76% | 2,534 | 35,188 | 06 Feb 2026 | Direct | ||
| Gagan Jain | POWI | Common Stock | Sale | -0.48% | $7,157 | $45.58 | -157 | 32,654 | 03 Feb 2026 | Direct |
| Sunil Gupta | POWI | Common Stock | Sale | -2.21% | $98,826 | $45.58 | -2,168 | 95,766 | 03 Feb 2026 | Direct |
| Balu Balakrishnan | POWI | Common Stock | Sale | -1.72% | $451,112 | $44.75 | -10,080 | 575,331 | 03 Feb 2026 | by Trust |
| Nancy Erba | POWI | Common Stock | Award | 64,487 | 64,487 | 02 Feb 2026 | Direct | |||
| Balu Balakrishnan | POWI | Common Stock | Sale | -0.94% | $260,036 | $46.59 | -5,581 | 585,206 | 29 Jan 2026 | by Trust |
| Gagan Jain | POWI | Common Stock | Award | 66.4% | 11,432 | 28,644 | 27 Jan 2026 | Direct | ||
| Sunil Gupta | POWI | Common Stock | Award | 34.3% | 22,865 | 89,570 | 27 Jan 2026 | Direct | ||
| Gagan Jain | POWI | Common Stock | Sale | -5.66% | $34,915 | $33.80 | -1,033 | 17,212 | 24 Nov 2025 | Direct |
| Robert Eric Verity | POWI | Common Stock | Sale | -1.33% | $4,424 | $40.21 | -110 | 8,167 | 04 Nov 2025 | Direct |
| Gagan Jain | POWI | Common Stock | Sale | -0.6% | $4,464 | $40.22 | -111 | 18,245 | 04 Nov 2025 | Direct |
| Robert Eric Verity | POWI | Common Stock | Award | 40.9% | 2,402 | 8,277 | 03 Nov 2025 | Direct | ||
| Gagan Jain | POWI | Common Stock | Sale | -2.42% | $18,892 | $41.43 | -456 | 18,356 | 24 Sep 2025 | Direct |
| Doug Bailey | POWI | Common Stock | Sale | -29.5% | $710,586 | $47.38 | -14,998 | 35,800 | 22 Aug 2025 | Direct |
| Doug Bailey | POWI | Common Stock | Sale | -25.1% | $788,403 | $46.41 | -16,989 | 50,798 | 18 Aug 2025 | Direct |
| Doug Bailey | POWI | Common Stock | Sale | -20% | $796,084 | $46.86 | -16,989 | 67,787 | 14 Aug 2025 | Direct |
| Gagan Jain | POWI | Common Stock | Sale | -9.77% | $93,759 | $46.05 | -2,036 | 18,812 | 12 Aug 2025 | Direct |
| Jennifer A. Lloyd | POWI | Common Stock | Award | 73,482 | 73,482 | 01 Aug 2025 | Direct | |||
| Anita Ganti | POWI | Common Stock | Award | 38.8% | 3,473 | 12,425 | 01 Jul 2025 | Direct | ||
| Balakrishnan S. Iyer | POWI | Common Stock | Award | 16.8% | 3,473 | 24,181 | 01 Jul 2025 | Direct | ||
| Nancy Lee Gioia | POWI | Common Stock | Award | 90.8% | 3,473 | 7,296 | 01 Jul 2025 | Direct | ||
| Wendy Arienzo | POWI | Common Stock | Award | 25% | 3,473 | 17,391 | 01 Jul 2025 | Direct | ||
| Ravi Vig | POWI | Common Stock | Award | 103.9% | 3,473 | 6,815 | 01 Jul 2025 | Direct | ||
| Gregg A. Lowe | POWI | Common Stock | Award | 477.1% | 3,473 | 4,201 | 01 Jul 2025 | Direct | ||
| Nicholas Brathwaite | POWI | Common Stock | Award | 10.2% | 3,473 | 37,504 | 01 Jul 2025 | Direct |
* marks a reported price that did not pass the local price check.