TETRA TECH INC Common Stock Shares Outstanding

• TETRA TECH INC showed a decrease of -2.4% in Common Stock Shares Outstanding from 2024 to 2025.
• This data is from TETRA TECH INC's annual report (Form 10-K), filed with the SEC on November 20, 2025.
• XBRL data for this metric is available from 2009 to 2025 (17 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
• Quarterly values from 10-Q filings: Q2 2010: 61.74 million shares | Q4 2010: 61.97 million shares | Q1 2011: 62.33 million shares | Q2 2011: 62.46 million shares | Q4 2011: 62.75 million shares | Q1 2012: 63.37 million shares | Q2 2012: 63.57 million shares | Q4 2012: 64.37 million shares | Q1 2013: 64.93 million shares | Q2 2013: 64.80 million shares | Q4 2013: 64.74 million shares | Q1 2014: 65.07 million shares | Q2 2014: 64.35 million shares | Q4 2014: 62.17 million shares | Q1 2015: 60.33 million shares | Q2 2015: 60.16 million shares | Q4 2015: 58.91 million shares | Q1 2016: 58.08 million shares | Q2 2016: 57.55 million shares | Q4 2016: 57.22 million shares | Q1 2017: 57.20 million shares | Q2 2017: 56.76 million shares | Q4 2017: 55.99 million shares | Q1 2018: 55.75 million shares | Q2 2018: 55.33 million shares | Q4 2018: 55.33 million shares | Q1 2019: 54.95 million shares | Q2 2019: 54.73 million shares | Q4 2019: 54.57 million shares | Q1 2020: 54.14 million shares | Q2 2020: 53.89 million shares | Q4 2020: 54.19 million shares | Q1 2021: 54.16 million shares | Q2 2021: 54.07 million shares | Q4 2021: 54.00 million shares | Q1 2022: 53.68 million shares | Q2 2022: 53.32 million shares | Q4 2022: 53.23 million shares | Q1 2023: 53.23 million shares | Q2 2023: 53.24 million shares | Q4 2023: 53.47 million shares | Q1 2024: 53.50 million shares | Q2 2024: 53.53 million shares | Q4 2024: 268.03 million shares | Q1 2025: 263.50 million shares | Q2 2025: 262.75 million shares | Q3 2025: 261.42 million shares | Q4 2025: 260.81 million shares.
• Over the full 17 years of available data (2009 to 2025), TETRA TECH INC's Common Stock Shares Outstanding has grown by 326.8%.
• Historical annual values: Fiscal year 2025: 261.42 million shares | Fiscal year 2024: 267.72 million shares | Fiscal year 2023: 266.24 million shares | Fiscal year 2022: 52.98 million shares | Fiscal year 2021: 53.98 million shares | Fiscal year 2020: 53.80 million shares | Fiscal year 2019: 54.57 million shares | Fiscal year 2018: 55.35 million shares | Fiscal year 2017: 55.87 million shares | Fiscal year 2016: 57.04 million shares | Fiscal year 2015: 59.38 million shares | Fiscal year 2014: 62.59 million shares | Fiscal year 2013: 64.13 million shares | Fiscal year 2012: 63.84 million shares | Fiscal year 2011: 62.50 million shares | Fiscal year 2010: 61.76 million shares | Fiscal year 2009: 61.26 million shares.
• Data sourced from SEC EDGAR public filings as of August 10, 2026.

Last verified: August 10, 2026