SCHEDULE: Vanguard Discloses 9.05% Stake in Power Integrations

Vanguard Portfolio Management has reported a beneficial ownership of 9.05% in Power Integrations Inc. common stock as of March 31, 2026.

Summary

• Vanguard Portfolio Management, along with its affiliates Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC, has disclosed a significant ownership stake in Power Integrations Inc.
• The filing indicates beneficial ownership of 5,023,849 shares of common stock, representing 9.05% of the class.
• This ownership includes shares held by Vanguard funds and other managed accounts where Vanguard Portfolio Management exercises dispositive power.
• The reporting is made in accordance with SEC Release No. 34-39538, which addresses the reporting of securities beneficially owned by investment management firms and their affiliates.
• The securities were acquired and are held in the ordinary course of business and not for the purpose of influencing control of the issuer.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing. It is a routine disclosure of ownership by a major investment firm and does not inherently signal positive or negative performance for the company itself.

Positives

• Vanguard's substantial investment suggests confidence in Power Integrations' long-term prospects.
• The disclosure confirms Vanguard's role as a significant institutional investor, which can provide stability and credibility.

Negatives

• The filing does not contain any negative financial or operational information about Power Integrations itself, as it is a disclosure of ownership by Vanguard.

Risks

• While not explicitly stated as risks for Power Integrations, significant ownership by a large institutional investor can sometimes lead to increased scrutiny or pressure regarding corporate strategy and performance.
• The filing does not detail any specific risks related to Power Integrations' business operations or financial health.

Future Outlook

This filing is a disclosure of current ownership and does not contain forward-looking statements or guidance from Power Integrations Inc. regarding its future performance.

Management Comments

• "In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by Vanguard Portfolio Management LLC and the following affiliates of Vanguard Portfolio Management LLC or business divisions of such affiliates: Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC."
• "This Schedule 13G includes securities held by Vanguard funds, or sleeves thereof, over which Vanguard Portfolio Management LLC exercises dispositive power, in addition to securities held by clients over which the affiliates or business divisions of such affiliates indicated above exercise dispositive and/or voting power."
• "This Schedule 13G does not include securities, if any, beneficially owned by other subsidiaries or affiliates of Vanguard Portfolio Management LLC, or business divisions of such subsidiaries whose ownership of securities is disaggregated from that of the reporting business unit in accordance with such release."
• "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."

Industry Context

StockSavvy.ai notes that significant stake disclosures by major asset managers like Vanguard are common and often reflect long-term investment strategies. This filing indicates Vanguard's continued interest in the semiconductor industry, specifically in Power Integrations' niche.

Stakeholder Impact

• Shareholders: The disclosure confirms a significant institutional investor's presence, which can be viewed positively for stock stability and potential future engagement.
• Management: The filing reiterates that Vanguard's investment is not intended to influence control, aligning with standard institutional investment practices.
• Creditors: No direct impact is indicated.

Next Steps

• Vanguard will continue to hold or manage its stake in Power Integrations Inc. according to its investment strategies.
• Power Integrations Inc. will continue its business operations as disclosed in its other SEC filings.

Key Dates

Keywords

Power Integrations, Vanguard, Schedule 13G, Beneficial Ownership, Institutional Investor, Common Stock, SEC Filing, Vanguard Portfolio Management, Vanguard Fiduciary Trust Company, Vanguard Global Advisers