SCHEDULE: Frontier Capital Discloses 3.93% Stake in Ultra Clean Holdings

Frontier Capital Management Co., LLC has reported beneficial ownership of 1,787,451 shares, representing 3.93% of the outstanding common stock of Ultra Clean Holdings, Inc., as of March 31, 2026.

Summary

• Frontier Capital Management Co., LLC has filed a Schedule 13G, indicating an amendment to a previous filing.
• As of March 31, 2026, Frontier Capital Management Co., LLC beneficially owns 1,787,451 shares of Ultra Clean Holdings, Inc. common stock.
• This ownership stake represents 3.93% of the total class of securities.
• The filing indicates sole voting power over 1,002,952 shares and sole dispositive power over 1,787,451 shares.
• The company is organized in Delaware and is classified as an investment adviser.
• The filing certifies that 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's a routine disclosure of ownership by an investment firm and does not inherently signal positive or negative performance for the underlying company.

Positives

• Frontier Capital Management Co., LLC holds a significant minority stake (3.93%) in Ultra Clean Holdings, Inc., suggesting confidence in the company's value.
• The filing confirms that the shares are held in the ordinary course of business, implying a standard investment strategy rather than a hostile takeover attempt.

Risks

• While not explicitly stated as a risk in this filing, any significant change in ownership by a large shareholder like Frontier Capital could potentially impact market perception or future strategic decisions of Ultra Clean Holdings.
• The filing does not provide forward-looking statements or specific business updates, so potential future challenges for Ultra Clean Holdings are not detailed here.

Future Outlook

This filing is a disclosure of beneficial ownership and does not contain forward-looking statements or financial guidance for Ultra Clean Holdings, Inc.

Management Comments

• "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."
• "After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct."

Industry Context

StockSavvy.ai notes that Schedule 13G filings are common for institutional investors accumulating significant stakes in publicly traded companies. Frontier Capital's disclosure of a 3.93% stake in Ultra Clean Holdings (UCT) places them as a notable shareholder, though just below the 5% threshold that typically triggers more detailed disclosures or public commentary.

Stakeholder Impact

• Shareholders: The disclosure may provide some comfort to other shareholders by indicating a significant institutional investor's continued interest in Ultra Clean Holdings, Inc. However, the filing itself does not directly impact share price or dividends.
• Management of Ultra Clean Holdings: The company's management is aware of Frontier Capital's ownership level, which is a standard aspect of public company investor relations.

Next Steps

• Frontier Capital Management Co., LLC will continue to hold its shares in Ultra Clean Holdings, Inc. in the ordinary course of business.
• Ultra Clean Holdings, Inc. will continue its operations as disclosed in its other filings.

Key Dates

Keywords

Ultra Clean Holdings, Frontier Capital Management, Schedule 13G, SEC Filing, Beneficial Ownership, Common Stock, Investment Adviser, Securities Exchange Act