As of November 6, 2026, Power Integrations Inc. is a publicly traded company (Nasdaq: POWI); its largest reported holder is BlackRock, with 14.9% on Schedule 13G/A of January 21, 2026, then Vanguard (9.05%). The largest insider holding is Balu Balakrishnan, a director, with 279,516 shares (0.50% of shares outstanding) held indirectly through a trust, per Form 4 of May 29, 2026 (Schedule 13G/A, January 21, 2026).
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Is Power Integrations Inc. a real, registered company?
- Power Integrations Inc files with the SEC under CIK 833640 (its SEC filings).
- Its shares are listed under the ticker POWI on Nasdaq (SEC company record).
- Incorporated in California; business address in San Jose, California, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under POWER INTEGRATIONS INC in our court records and SEC 8-K records (as of 2026-11-06).
- Layoffs: 1 exit or restructuring plan reported on Form 8-K, Item 2.05 (latest filed 2026-02-05).
- Leadership changes: the latest reported is Sunil Gupta, Senior Vice President, Operations (Form 8-K filed 2026-08-14). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Wellington Management (filed 2026-05-15).
Who are Power Integrations Inc.'s owners and officers?
Power Integrations Inc.: incorporated in California; business address in San Jose, California; industry Semiconductors & Related Devices (Form D, 2026-08-14).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-06-04 | Neuberger Berman Group LLC | 4.5% |
| Schedule 13G, 2026-05-15 | Wellington Management Group LLP | 6% |
| Schedule 13G, 2026-04-30 | Vanguard Capital Management | 5.28% |
| Schedule 13G, 2026-04-29 | Vanguard Portfolio Management | 9.05% |
| Schedule 13G/A, 2026-03-27 | The Vanguard Group | 0% |
| Schedule 13G, 2026-02-09 | State Street Corporation | 6.1% |
| Schedule 13G/A, 2026-01-30 | The Vanguard Group | 13.65% |
| Schedule 13G/A, 2026-01-21 | Blackrock, Inc. | 14.9% |
| Schedule 13G, 2025-11-10 | State Street Corporation | 5.1% |
Questions about who owns Power Integrations Inc.
Who owns Power Integrations Inc.?
On this page, 5 holders' latest ownership filings report 5% or more of Power Integrations Inc.: Blackrock, Inc. (14.9%, Schedule 13G/A, filed 2026-01-21), Vanguard Portfolio Management (9.05%, Schedule 13G, filed 2026-04-29), State Street Corporation (6.1%, Schedule 13G, filed 2026-02-09), Wellington Management Group LLP (6%, Schedule 13G, filed 2026-05-15) and Vanguard Capital Management (5.28%, Schedule 13G, filed 2026-04-30).
Who are the largest shareholders of Power Integrations Inc.?
By the share each holder's latest filing reports, the largest holders of Power Integrations Inc. on this page are Blackrock, Inc. (14.9%), Vanguard Portfolio Management (9.05%) and State Street Corporation (6.1%).
When did Blackrock, Inc. buy into Power Integrations Inc.?
The filings give report dates, not purchase dates. The earliest filing from Blackrock, Inc. on this page is the Schedule 13G/A, filed 2026-01-21, reporting 14.9%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 9 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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What the Full Report on Power Integrations Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-08-14 | Sunil Gupta | Senior Vice President, Operations | departed | 2026-08-25 |
| Form 8-K, 2026-05-07 | Mike Balow | Senior Vice President, Worldwide Sales | appointed |
Which insiders own Power Integrations Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a director: 279,516 shares (0.50% of shares outstanding), held indirectly through a trust (Form 4, 2026-05-29).
- , the vice president corporate development: 141,765 shares (0.25% of shares outstanding) (Form 4, 2025-04-04).
- , the chief executive and president: 136,655 shares (0.24% of shares outstanding) (Form 4, 2026-07-27).
- , the chief financial officer: 107,357 shares (0.19% of shares outstanding) (Form 4, 2025-04-04).
- , the chief financial officer: 64,487 shares (0.12% of shares outstanding) (Form 4, 2026-02-04).
Shares outstanding: 55,882,039 as of 2026-11-02, from the company's latest SEC cover page.
How much has Power Integrations Inc. raised?
No fundraising or offering filing from Power Integrations Inc. is on file with us.
Red flags found
1 exit or restructuring plan on Form 8-K (latest Form 8-K, 2026-02-05).
Keep reading
More on Power Integrations Inc. and the records around it.
Power Integrations Inc. elsewhere on the record
- Leadership changes Aug 2026
- 5%+ stake filings Jun 2026
- Layoff notices Feb 2026
Companies that share a holder
- Neuberger Berman Group LLC also filed stake reports on 37 other companies: Stock Yards Bancorp, Inc. (Nov 2026), TRANSCAT INC (Nov 2026), Hagerty Inc CLass A (Oct 2026)
- Wellington Management Group LLP also filed stake reports on 240 other companies: Hub Group, Inc. (Oct 2026), Latham Group, Inc. (Oct 2026), Redwood Trust, Inc. (Oct 2026)
- STATE STREET CORPORATION also filed stake reports on 343 other companies: TRADE DESK INC/THE (Oct 2026), CENTRUS ENERGY CORP (Sep 2026), ACADIA PHARMACEUTICALS INC (Aug 2026)
Related pages
LayoffsLeadership changes5%+ holders
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