Quick Answer
TETRA TECH INC reported Shares Outstanding of 261.42 million shares for fiscal year 2025.
TETRA TECH INC Shares Outstanding — Annual History
| Fiscal Year | Shares Outstanding | YoY Change |
|---|---|---|
| 2025 | 261.42M | -2.4% |
| 2024 | 267.72M | +0.6% |
| 2023 | 266.24M | +402.5% |
| 2022 | 52.98M | -1.9% |
| 2021 | 53.98M | +0.3% |
| 2020 | 53.80M | -1.4% |
| 2019 | 54.56M | -1.4% |
| 2018 | 55.35M | -0.9% |
| 2017 | 55.87M | -2.0% |
| 2016 | 57.04M | -3.9% |
| 2015 | 59.38M | -5.1% |
| 2014 | 62.59M | -2.4% |
| 2013 | 64.13M | +0.5% |
| 2012 | 63.84M | +2.1% |
| 2011 | 62.49M | +1.2% |
| 2010 | 61.76M | +0.8% |
| 2009 | 61.26M | — |
Quarterly Shares Outstanding
| Quarter Ending | Shares Outstanding | YoY | QoQ |
|---|---|---|---|
| December 31, 2025 | 260.81M | -2.7% | -0.2% |
| September 30, 2025 | 261.42M | -2.4% | -0.5% |
| June 30, 2025 | 262.75M | +390.8% | -0.3% |
| March 31, 2025 | 263.50M | +392.6% | -1.7% |
| December 31, 2024 | 268.03M | +401.3% | +0.1% |
| September 30, 2024 | 267.72M | +402.8% | +400.1% |
| June 30, 2024 | 53.53M | +0.5% | +0.1% |
| March 31, 2024 | 53.50M | +0.5% | +0.1% |
- TETRA TECH INC showed a decrease of -2.4% in Shares Outstanding compared to the prior fiscal year.
- Over the 2009–2025 period, TETRA TECH INC’s shares outstanding has grown by 326.8% (from 61.26 million shares to 261.42 million shares).
- The most recent figure is from TETRA TECH INC’s fiscal year 2025 report (Form 10-K), filed with the SEC on November 20, 2025.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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