Tetra Tech annual shares outstanding
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
Tetra Tech Shares Outstanding History (TTEK)
Tetra Tech reported 261.4M shares outstanding at the end of fiscal 2025.
View full Tetra Tech company overviewTetra Tech annual shares outstanding history
| Fiscal year | Period ended | Shares outstanding | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-09-28 | 261.4M | −6.3M | −2.35% |
| 2024 | 2024-09-29 | 267.7M | 1.5M | +0.56% |
| 2023 | 2023-10-01 | 266.2M | −1.06B | −79.90% |
| 2022 | 2022-10-02 | 1.32B | −25.0M | −1.85% |
| 2021 | 2021-10-03 | 1.35B | 4.6M | +0.34% |
| 2020 | 2020-09-27 | 1.34B | −19.2M | −1.41% |
| 2019 | 2019-09-29 | 1.36B | −19.6M | −1.42% |
| 2018 | 2018-09-30 | 1.38B | −13.1M | −0.94% |
| 2017 | 2017-10-01 | 1.40B | −29.2M | −2.05% |
| 2016 | 2016-10-02 | 1.43B | −58.5M | −3.94% |
| 2015 | 2015-09-27 | 1.48B | −80.3M | −5.13% |
| 2014 | 2014-09-28 | 1.56B | −38.6M | −2.41% |
| 2013 | 2013-09-29 | 1.60B | 7.4M | +0.47% |
| 2012 | 2012-09-30 | 1.60B | 33.5M | +2.15% |
| 2011 | 2011-10-02 | 1.56B | 18.5M | +1.20% |
| 2010 | 2010-10-03 | 1.54B | 12.4M | +0.81% |
| 2009 | 2009-09-27 | 1.53B | — | — |
Tetra Tech quarterly shares outstanding
Q4.09
Q3.10
Q4.10
Q1.11
Q2.11
Q3.11
Q4.11
Q1.12
Q2.12
Q3.12
Q4.12
Q1.13
Q2.13
Q3.13
Q4.13
Q1.14
Q2.14
Q3.14
Q3.14
Q4.14
Q1.15
Q2.15
Q3.15
Q3.15
Q4.15
Q1.16
Q2.16
Q3.16
Q3.16
Q4.16
Q1.17
Q2.17
Q3.17
Q4.17
Q1.18
Q2.18
Q3.18
Q4.18
Q1.19
Q2.19
Q3.19
Q4.19
Q1.20
Q2.20
Q3.20
Q4.20
Q1.21
Q2.21
Q3.21
Q4.21
Q1.22
Q2.22
Q3.22
Q4.22
Q1.23
Q2.23
Q3.23
As of Sep 6, 2023
Q4.23
Q1.24
Q2.24
Q3.24
Q4.24
Q1.25
Q2.25
Q3.25
Q4.25
Q1.26
Q2.26
Q3.26
| Fiscal quarter | Period ended | Shares outstanding | Change | YoY change |
|---|---|---|---|---|
| Q3 2026 | 2026-06-28 | 256.0M | −6.7M | −2.55% |
| Q2 2026 | 2026-03-29 | 259.5M | −4.0M | −1.51% |
| Q1 2026 | 2025-12-28 | 260.8M | −7.2M | −2.69% |
| Q4 2025 | 2025-09-28 | 261.4M | −6.3M | −2.35% |
| Q3 2025 | 2025-06-29 | 262.8M | −4.9M | −1.83% |
| Q2 2025 | 2025-03-30 | 263.5M | −1.07B | −80.30% |
| Q1 2025 | 2024-12-29 | 268.0M | −1.07B | −79.95% |
| Q4 2024 | 2024-09-29 | 267.7M | 1.5M | +0.56% |
| Q3 2024 | 2024-06-30 | 267.7M | −1.06B | −79.89% |
| Q2 2024 | 2024-03-31 | 1.34B | 6.7M | +0.51% |
| Q1 2024 | 2023-12-31 | 1.34B | 6.0M | +0.45% |
| Q4 2023 | 2023-10-01 | 266.2M | −1.06B | −79.90% |
| As of Sep 6, 2023 | 2023-09-06 | 1.33B | — | — |
| Q3 2023 | 2023-07-02 | 1.33B | −1.9M | −0.14% |
| Q2 2023 | 2023-04-02 | 1.33B | −11.4M | −0.85% |
| Q1 2023 | 2023-01-01 | 1.33B | −19.3M | −1.43% |
| Q4 2022 | 2022-10-02 | 1.32B | −25.0M | −1.85% |
| Q3 2022 | 2022-07-03 | 1.33B | −18.8M | −1.39% |
| Q2 2022 | 2022-04-03 | 1.34B | −11.9M | −0.88% |
| Q1 2022 | 2022-01-02 | 1.35B | −4.8M | −0.36% |
| Q4 2021 | 2021-10-03 | 1.35B | 4.6M | +0.34% |
| Q3 2021 | 2021-06-27 | 1.35B | 4.6M | +0.34% |
| Q2 2021 | 2021-03-28 | 1.35B | 400,000 | +0.03% |
| Q1 2021 | 2020-12-27 | 1.35B | −9.3M | −0.68% |
| Q4 2020 | 2020-09-27 | 1.34B | −19.2M | −1.41% |
| Q3 2020 | 2020-06-28 | 1.35B | −21.0M | −1.53% |
| Q2 2020 | 2020-03-29 | 1.35B | −20.1M | −1.47% |
| Q1 2020 | 2019-12-29 | 1.36B | −19.0M | −1.38% |
| Q4 2019 | 2019-09-29 | 1.36B | −19.6M | −1.42% |
| Q3 2019 | 2019-06-30 | 1.37B | −15.1M | −1.09% |
| Q2 2019 | 2019-03-31 | 1.37B | −20.1M | −1.44% |
| Q1 2019 | 2018-12-30 | 1.38B | −16.6M | −1.18% |
| Q4 2018 | 2018-09-30 | 1.38B | −13.1M | −0.94% |
| Q3 2018 | 2018-07-01 | 1.38B | −35.8M | −2.52% |
| Q2 2018 | 2018-04-01 | 1.39B | −36.4M | −2.54% |
| Q1 2018 | 2017-12-31 | 1.40B | −30.8M | −2.15% |
| Q4 2017 | 2017-10-01 | 1.40B | −29.2M | −2.05% |
| Q3 2017 | 2017-07-02 | 1.42B | −19.6M | −1.36% |
| Q2 2017 | 2017-04-02 | 1.43B | −21.9M | −1.50% |
| Q1 2017 | 2017-01-01 | 1.43B | −42.3M | −2.87% |
| Q4 2016 | 2016-10-02 | 1.43B | −58.5M | −3.94% |
| Q3 2016 · Jul 25 | 2016-07-25 | 1.43B | −49.2M | −3.33% |
| Q3 2016 · Jun 26 | 2016-06-26 | 1.44B | −65.4M | −4.35% |
| Q2 2016 | 2016-03-27 | 1.45B | −56.4M | −3.74% |
| Q1 2016 | 2015-12-27 | 1.47B | −81.5M | −5.24% |
| Q4 2015 | 2015-09-27 | 1.48B | −80.3M | −5.13% |
| Q3 2015 · Jul 27 | 2015-07-27 | 1.48B | −89.5M | −5.72% |
| Q3 2015 · Jun 28 | 2015-06-28 | 1.50B | −104.7M | −6.51% |
| Q2 2015 | 2015-03-29 | 1.51B | −118.4M | −7.28% |
| Q1 2015 | 2014-12-28 | 1.55B | −64.2M | −3.97% |
| Q4 2014 | 2014-09-28 | 1.56B | −38.6M | −2.41% |
| Q3 2014 · Jul 28 | 2014-07-28 | 1.57B | — | — |
| Q3 2014 · Jun 29 | 2014-06-29 | 1.61B | −11.3M | −0.70% |
| Q2 2014 | 2014-03-30 | 1.63B | 3.6M | +0.22% |
| Q1 2014 | 2013-12-29 | 1.62B | 9.1M | +0.57% |
| Q4 2013 | 2013-09-29 | 1.60B | 7.4M | +0.47% |
| Q3 2013 | 2013-06-30 | 1.62B | 30.7M | +1.93% |
| Q2 2013 | 2013-03-31 | 1.62B | 38.8M | +2.45% |
| Q1 2013 | 2012-12-30 | 1.61B | 40.6M | +2.59% |
| Q4 2012 | 2012-09-30 | 1.60B | 33.5M | +2.15% |
| Q3 2012 | 2012-07-01 | 1.59B | 27.7M | +1.77% |
| Q2 2012 | 2012-04-01 | 1.58B | 26.1M | +1.67% |
| Q1 2012 | 2012-01-01 | 1.57B | 19.4M | +1.25% |
| Q4 2011 | 2011-10-02 | 1.56B | 18.5M | +1.20% |
| Q3 2011 | 2011-07-03 | 1.56B | 18.0M | +1.17% |
| Q2 2011 | 2011-04-03 | 1.56B | — | — |
| Q1 2011 | 2011-01-02 | 1.55B | — | — |
| Q4 2010 | 2010-10-03 | 1.54B | 12.4M | +0.81% |
| Q3 2010 | 2010-06-27 | 1.54B | — | — |
| Q4 2009 | 2009-09-27 | 1.53B | — | — |
Tetra Tech Share Buyback History
A share buyback, also called a stock repurchase, is when a company uses cash to buy its own shares. Tetra Tech share buyback history shows the reported cash used for repurchases. Buybacks can reduce shares outstanding, but issuance, stock-based compensation, acquisitions, and stock splits can change the share count separately.
Tetra Tech used $250.0M to repurchase common stock in fy 2025. Across the latest 5 reported fiscal years, total share repurchases were $510.0M. The latest reported quarter showed $100.0M of share repurchases.
| Fiscal year | Period ended | Share repurchases |
|---|---|---|
| 2025 | 2025-09-28 | $250.0M |
| 2024 | 2024-09-29 | $0 |
| 2023 | 2023-10-01 | $0 |
| 2022 | 2022-10-02 | $200.0M |
| 2021 | 2021-10-03 | $60.0M |
| 2020 | 2020-09-27 | $117.2M |
| 2019 | 2019-09-29 | $100.0M |
| 2018 | 2018-09-30 | $75.0M |
| 2017 | 2017-10-01 | $100.0M |
| 2016 | 2016-10-02 | $99.5M |
TickerStat uses SEC-reported cash payments for common-stock repurchases. The amounts describe capital returned through buybacks; they are not a forecast or a measure of the number of shares retired.
Tetra Tech shares outstanding trends
Over the last five fiscal years, Tetra Tech's shares outstanding moved from 1.34B to 261.4M, a change of −1.08B. The latest reported quarter, Q3 2026, shows 256.0M.
About the metric
What shares outstanding means
Shares outstanding is the number of common shares held by investors at a reporting-period end. The count can change because of stock issuance, repurchases, conversions, acquisitions, or stock splits.
Calculation and source
SEC-reported period-end shares
TickerStat displays period-end common shares from SEC filings and adjusts older values to the current share basis when a stock-split conversion ratio is reported directly or evidenced by a later filing’s restated historical share balance. After repeated reverse splits, an old period can represent less than one current-basis share; this is a split-adjusted equivalent, not a literal historical certificate count. Values remain as reported when no reliable split ratio is available. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Tetra Tech source filings ↗Community posts
Tetra Tech adds $500 million to its share-repurchase capacity
Tetra Tech’s ($TTEK) board approved an additional $500 million share-repurchase authorization, increasing available capacity to $898 million. The expansion more than doubles the amount remaining at the end of its fiscal third quarter. The c ...
