Baillie Gifford Trims Stake in Tetra Tech

Asset management firm reduces holdings in industrial products company

Apr. 14, 2026 at 7:35am

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An extreme close-up of heavy, industrial machinery in muted tones of grey, copper, and black, conceptually representing the complex financial forces shaping the future of the engineering firm Tetra Tech.A dramatic close-up of the intricate machinery powering Tetra Tech's financial future, reflecting the shifting institutional landscape.Pasadena Today

Baillie Gifford & Co. has reduced its position in Tetra Tech, Inc. (NASDAQ:TTEK) by 18.0% in the fourth quarter, according to a recent SEC filing. The fund now owns 428,775 shares of the industrial products company's stock, down from 523,150 shares previously.

Why it matters

This move by a major institutional investor like Baillie Gifford could signal a shift in sentiment around Tetra Tech, which provides consulting and engineering services focused on water, environment, infrastructure, and energy sectors. Tracking changes in institutional ownership can provide insights into how the market views a company's prospects.

The details

According to the filing, Baillie Gifford sold 94,375 shares of Tetra Tech during the fourth quarter. The fund now owns about 0.16% of the company's outstanding shares, down from 0.20% previously. Tetra Tech's stock price has fluctuated in recent months, trading between $29.56 and $43.14 over the past 52 weeks.

  • Baillie Gifford reduced its Tetra Tech holdings in the fourth quarter of 2025.

The players

Baillie Gifford & Co.

A global asset management firm based in Edinburgh, Scotland that manages over $300 billion in client assets.

Tetra Tech, Inc.

An engineering and consulting firm focused on water, environment, infrastructure, resource management, and energy sectors, headquartered in Pasadena, California.

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What they’re saying

“We must continue to monitor Tetra Tech's performance and market position as this institutional ownership change could signal a shift in sentiment.”

— Analyst

What’s next

Investors will be watching to see if other major institutional holders make similar moves with their Tetra Tech positions in the coming quarters.

The takeaway

This reduction in Baillie Gifford's stake in Tetra Tech is a notable development that bears watching, as changes in institutional ownership can provide clues about the market's view of the company's prospects.