EX-99.1 2 tm2625143d1_ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 NEWS RELEASE September 10, 2026 ────────────────────── Tetra Tech Announces $500 Million Increase to its Share Repurchase Program Pasadena, California. Tetra Tech, Inc. (NASDAQ: TTEK), a global provider of high-end technical and engineering services, Leading with Science ® in water, environment and sustainable infrastructure, announced today that its Board of Directors approved an addtional $500 million share repurchase authorization. This more than doubles the amount remaining under the Company’s existing share repurchase program at the end of the third quarter of fiscal 2026, increasing total available share repurchases to $898 million. For the twelve months ended the third quarter of fiscal 2026, Tetra Tech generated $567 million in cash flow from operations and returned $322 million to shareholders through share repurchases and dividends. During this period, the Company also advanced its Leading with Science® differentiation with the completion of strategic acquisitions that added new clients and technical capabilities. The strong cash flow also enabled the Company to continue deleveraging its balance s…
Open exhibit ↗Current Report · Items 8.01, 9.01 · 8-K
Tetra Tech, Inc.
TTEKNASDAQEQUITYCurrent
Other Events
Item 8.01. Other Events. On September 10, 2026, Tetra Tech announced that its Board of Directors has authorized a $500 million increase to its share repurchase program. A copy of the press release is attached to this Current Report as Exhibit 99.1.
Company context
Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide. With more than 25,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science ® to address the entire water cycle, protect and restore the environment, and design sustainable and resilient infrastructure. For more information about Tetra Tech, please visit tetratech.com or follow us on LinkedIn and Facebook.