SCHEDULE: Vanguard Boosts Plexus Stake to 13.65%

The Vanguard Group has increased its beneficial ownership in Plexus Corp to 13.65% of common stock, holding 3,683,845 shares as of September 30, 2025.

Summary

• The Vanguard Group reported beneficial ownership of 3,683,845 shares of Plexus Corp Common Stock.
• This represents 13.65% of the class of securities.
• The filing is an Amendment No. 17 to Schedule 13G, indicating a change in ownership from previous reports.
• The Vanguard Group, classified as an Investment Adviser, holds these securities in the ordinary course of business.
• The securities were not acquired or held for the purpose of changing or influencing the control of Plexus Corp.

Sentiment

Score: 7

Explanation: The increased institutional ownership by a major investment firm like The Vanguard Group is generally viewed positively as it signals confidence in the issuer's long-term prospects, although the filing itself is purely a disclosure of ownership and not a performance report.

Positives

• Increased institutional ownership by a major investment firm like The Vanguard Group can signal confidence in Plexus Corp's long-term prospects.
• The substantial stake of 13.65% indicates a significant commitment from a prominent institutional investor.

Future Outlook

This filing does not contain forward-looking statements or guidance from Plexus Corp. It solely reports The Vanguard Group's beneficial ownership position.

Industry Context

The Vanguard Group is one of the world's largest investment management companies, known for its low-cost index funds and ETFs. Its significant stake in Plexus Corp reflects a strategic allocation within its managed portfolios, often indicative of a long-term, passive investment approach consistent with its investment adviser classification. Such a large position by a major institutional investor can be seen as a vote of confidence in the company's market position and operational stability within the electronics manufacturing services industry.

Comparison to Industry Standards

• The Vanguard Group's investment strategy typically involves broad market exposure and passive indexing, meaning its holdings often reflect the market capitalization of companies within specific indices. A 13.65% stake in Plexus Corp suggests the company is a significant component within relevant indices or actively managed funds where Vanguard has a mandate to invest.
• Compared to other institutional investors, Vanguard's disclosure of a substantial stake without seeking control is standard for a Schedule 13G filing, which is used by passive investors holding more than 5% of a company's stock.

Stakeholder Impact

• Shareholders may view the increased institutional ownership by The Vanguard Group as a positive signal, potentially bolstering investor confidence and market perception of Plexus Corp.
• The presence of a large, passive institutional investor like Vanguard typically contributes to market stability and liquidity for the company's stock.

Key Dates

Recommendation

The filing indicates a significant increase in institutional ownership by The Vanguard Group, a major investment firm. While this signals confidence in Plexus Corp, a Schedule 13G filing primarily discloses ownership and does not provide comprehensive financial or operational details to warrant a 'buy' or 'sell' recommendation. Existing shareholders may view this as a positive affirmation, suggesting a 'hold' position.

Keywords

Plexus Corp, Vanguard Group, Common Stock, Schedule 13G, Institutional Ownership, Equity Stake, Investment Adviser