Chicago Capital LLC Boosts Stake in Amphenol Corporation

The investment firm increased its holdings in the electronics manufacturer by 27.7% in Q4 2025.

Apr. 18, 2026 at 7:37am

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An extreme close-up of intricately engineered industrial components and machinery, conveying the robust, reliable nature of Amphenol's products and the firm's position within the global electronics supply chain.Chicago investment firm's increased stake in Amphenol signals confidence in the electronics manufacturer's ability to power the global technology ecosystem.Chicago Today

Chicago Capital LLC, an investment management firm based in Chicago, Illinois, increased its stake in Amphenol Corporation (NYSE: APH) by 27.7% during the fourth quarter of 2025, according to a recent filing with the Securities and Exchange Commission. The firm now owns 137,070 shares of the electronics maker's stock, valued at $18.5 million.

Why it matters

Amphenol is a leading global manufacturer of electronic and fiber optic connectors, interconnect systems, and related components, serving a diverse set of end markets including automotive, telecommunications, and industrial. The increase in Chicago Capital's stake suggests the firm sees continued growth potential in Amphenol's business.

The details

According to the SEC filing, Chicago Capital purchased an additional 29,693 shares of Amphenol during the fourth quarter, bringing its total holdings to 137,070 shares. The firm's position in Amphenol now represents 27.7% of its total portfolio. Several other institutional investors have also been accumulating Amphenol shares in recent quarters, indicating broad confidence in the company's outlook.

  • Chicago Capital LLC disclosed its increased stake in Amphenol in a 13F filing on April 18, 2026, covering the fourth quarter of 2025.
  • Amphenol reported its Q4 2025 earnings on January 28, 2026.

The players

Chicago Capital LLC

An investment management firm based in Chicago, Illinois that has increased its stake in Amphenol Corporation.

Amphenol Corporation

A leading global manufacturer of electronic and fiber optic connectors, interconnect systems, and related components, serving a diverse set of end markets.

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What’s next

Investors will be watching to see if Chicago Capital continues to increase its position in Amphenol in the coming quarters, which could signal the firm's confidence in the company's long-term growth prospects.

The takeaway

The increase in Chicago Capital's stake in Amphenol reflects the investment firm's belief in the electronics manufacturer's ability to navigate industry challenges and capitalize on emerging trends in its diverse end markets.