Listed

Tetra Tech Inc

TTEKNasdaqCIK 831641IndustrialsFiscal year ends Sep 27

Standardized line items from XBRL company facts, the last twelve quarters. Negative values are in parentheses. A figure marked d is derived from year-to-date figures.

Income statement

Revenue$1.31bn, Q3 FY2026
Operating income$157.9m, Q3 FY2026
Net income$109.8m, Q3 FY2026
Tetra Tech Inc, income statement, quarterly
Line itemUnitQ4 FY20232023-10-01Q1 FY20242023-12-31Q2 FY20242024-03-31Q3 FY20242024-06-30Q4 FY20242024-09-29Q1 FY20252024-12-29Q2 FY20252025-03-30Q3 FY20252025-06-29Q4 FY20252025-09-28Q1 FY20262025-12-28Q2 FY20262026-03-29Q3 FY20262026-06-28
Revenue$m1,261Revenue, Q4 FY2023, three months to 2023-10-01$1.26bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure1,228Revenue, Q1 FY2024, three months to 2023-12-31$1.23bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure1,252Revenue, Q2 FY2024, three months to 2024-03-31$1.25bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure1,344Revenue, Q3 FY2024, three months to 2024-06-30$1.34bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure1,374Revenue, Q4 FY2024, three months to 2024-09-29$1.37bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure1,421Revenue, Q1 FY2025, three months to 2024-12-29$1.42bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure1,322Revenue, Q2 FY2025, three months to 2025-03-30$1.32bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure1,370Revenue, Q3 FY2025, three months to 2025-06-29$1.37bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure1,330Revenue, Q4 FY2025, three months to 2025-09-28$1.33bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure1,211Revenue, Q1 FY2026, three months to 2025-12-28$1.21bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure1,220Revenue, Q2 FY2026, three months to 2026-03-29$1.22bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure1,309Revenue, Q3 FY2026, three months to 2026-06-28$1.31bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Cost of revenue$mnot reportednot reportednot reportednot reportednot reported223Cost of revenue, Q1 FY2025, three months to 2024-12-29$223.2m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure218Cost of revenue, Q2 FY2025, three months to 2025-03-30$218.4m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure217Cost of revenue, Q3 FY2025, three months to 2025-06-29$216.8m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure167Cost of revenue, Q4 FY2025, three months to 2025-09-28$166.8m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure173Cost of revenue, Q1 FY2026, three months to 2025-12-28$173.5m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure171Cost of revenue, Q2 FY2026, three months to 2026-03-29$170.5m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure200Cost of revenue, Q3 FY2026, three months to 2026-06-28$200.0m. XBRL concept us-gaap:CostOfGoodsAndServicesSold. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Gross profit$m212Gross profit, Q4 FY2023, three months to 2023-10-01$212.1m. XBRL concept us-gaap:GrossProfit. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure190Gross profit, Q1 FY2024, three months to 2023-12-31$190.5m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure207Gross profit, Q2 FY2024, three months to 2024-03-31$207.5m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure223Gross profit, Q3 FY2024, three months to 2024-06-30$223.2m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure245Gross profit, Q4 FY2024, three months to 2024-09-29$245.3m. XBRL concept us-gaap:GrossProfit. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure221Gross profit, Q1 FY2025, three months to 2024-12-29$221.5m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure214Gross profit, Q2 FY2025, three months to 2025-03-30$214.2m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure252Gross profit, Q3 FY2025, three months to 2025-06-29$251.5m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure274Gross profit, Q4 FY2025, three months to 2025-09-28$274.1m. XBRL concept us-gaap:GrossProfit. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure220Gross profit, Q1 FY2026, three months to 2025-12-28$220.4m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure214Gross profit, Q2 FY2026, three months to 2026-03-29$214.1m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure243Gross profit, Q3 FY2026, three months to 2026-06-28$243.2m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Operating income$m107Operating income, Q4 FY2023, three months to 2023-10-01$107.4m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure111Operating income, Q1 FY2024, three months to 2023-12-31$111.1m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure118Operating income, Q2 FY2024, three months to 2024-03-31$117.7m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure129Operating income, Q3 FY2024, three months to 2024-06-30$128.6m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure143Operating income, Q4 FY2024, three months to 2024-09-29$143.3m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure22.5Operating income, Q1 FY2025, three months to 2024-12-29$22.5m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure39.6Operating income, Q2 FY2025, three months to 2025-03-30$39.6m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure165Operating income, Q3 FY2025, three months to 2025-06-29$165.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure181Operating income, Q4 FY2025, three months to 2025-09-28$181.3m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure141Operating income, Q1 FY2026, three months to 2025-12-28$141.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure132Operating income, Q2 FY2026, three months to 2026-03-29$131.5m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure158Operating income, Q3 FY2026, three months to 2026-06-28$157.9m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Interest expense$mnot reported9.6Interest expense, Q1 FY2024, three months to 2023-12-31$9.6m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure9.9Interest expense, Q2 FY2024, three months to 2024-03-31$9.9m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure9.9Interest expense, Q3 FY2024, three months to 2024-06-30$9.9m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure15.2Interest expense, Q4 FY2024, three months to 2024-09-29$15.2m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure7.2Interest expense, Q1 FY2025, three months to 2024-12-29$7.2m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure8.5Interest expense, Q2 FY2025, three months to 2025-03-30$8.5m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure8.3Interest expense, Q3 FY2025, three months to 2025-06-29$8.3m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure16.6Interest expense, Q4 FY2025, three months to 2025-09-28$16.6m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure7.1Interest expense, Q1 FY2026, three months to 2025-12-28$7.1m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure8.8Interest expense, Q2 FY2026, three months to 2026-03-29$8.8m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure7.2Interest expense, Q3 FY2026, three months to 2026-06-28$7.2m. XBRL concept us-gaap:InterestExpenseNonoperating. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Income tax$m40.7Income tax, Q4 FY2023, three months to 2023-10-01$40.7m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure26.5Income tax, Q1 FY2024, three months to 2023-12-31$26.5m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure31.3Income tax, Q2 FY2024, three months to 2024-03-31$31.3m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure32.9Income tax, Q3 FY2024, three months to 2024-06-30$32.9m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure39.3Income tax, Q4 FY2024, three months to 2024-09-29$39.3m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure14.5Income tax, Q1 FY2025, three months to 2024-12-29$14.5m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure25.7Income tax, Q2 FY2025, three months to 2025-03-30$25.7m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure42.8Income tax, Q3 FY2025, three months to 2025-06-29$42.8m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure46.6Income tax, Q4 FY2025, three months to 2025-09-28$46.6m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure36.4Income tax, Q1 FY2026, three months to 2025-12-28$36.4m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure33.5Income tax, Q2 FY2026, three months to 2026-03-29$33.5m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure41.0Income tax, Q3 FY2026, three months to 2026-06-28$41.0m. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Net income$m53.6Net income, Q4 FY2023, three months to 2023-10-01$53.6m. XBRL concept us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure75.0Net income, Q1 FY2024, three months to 2023-12-31$75.0m. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure76.4Net income, Q2 FY2024, three months to 2024-03-31$76.4m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure85.8Net income, Q3 FY2024, three months to 2024-06-30$85.8m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure96.2Net income, Q4 FY2024, three months to 2024-09-29$96.2m. XBRL concept us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.8Net income, Q1 FY2025, three months to 2024-12-29$778.0k. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure5.4Net income, Q2 FY2025, three months to 2025-03-30$5.4m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure114Net income, Q3 FY2025, three months to 2025-06-29$113.8m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure128Net income, Q4 FY2025, three months to 2025-09-28$127.7m. XBRL concept us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure105Net income, Q1 FY2026, three months to 2025-12-28$105.2m. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure93.8Net income, Q2 FY2026, three months to 2026-03-29$93.8m. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure110Net income, Q3 FY2026, three months to 2026-06-28$109.8m. XBRL concept us-gaap:ProfitLoss. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Diluted EPS$ per share0.20Diluted EPS, Q4 FY2023, three months to 2023-10-01$0.20 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure0.28Diluted EPS, Q1 FY2024, three months to 2023-12-31$0.28 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.28Diluted EPS, Q2 FY2024, three months to 2024-03-31$0.28 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.32Diluted EPS, Q3 FY2024, three months to 2024-06-30$0.32 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.35Diluted EPS, Q4 FY2024, three months to 2024-09-29$0.35 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.00Diluted EPS, Q1 FY2025, three months to 2024-12-29$0.00 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure0.02Diluted EPS, Q2 FY2025, three months to 2025-03-30$0.02 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure0.43Diluted EPS, Q3 FY2025, three months to 2025-06-29$0.43 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure0.48Diluted EPS, Q4 FY2025, three months to 2025-09-28$0.48 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.40Diluted EPS, Q1 FY2026, three months to 2025-12-28$0.40 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure0.36Diluted EPS, Q2 FY2026, three months to 2026-03-29$0.36 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure0.42Diluted EPS, Q3 FY2026, three months to 2026-06-28$0.42 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Basic EPS$ per share0.20Basic EPS, Q4 FY2023, three months to 2023-10-01$0.20 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure0.28Basic EPS, Q1 FY2024, three months to 2023-12-31$0.28 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.29Basic EPS, Q2 FY2024, three months to 2024-03-31$0.29 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.32Basic EPS, Q3 FY2024, three months to 2024-06-30$0.32 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.36Basic EPS, Q4 FY2024, three months to 2024-09-29$0.36 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.00Basic EPS, Q1 FY2025, three months to 2024-12-29$0.00 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure0.02Basic EPS, Q2 FY2025, three months to 2025-03-30$0.02 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure0.43Basic EPS, Q3 FY2025, three months to 2025-06-29$0.43 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure0.49Basic EPS, Q4 FY2025, three months to 2025-09-28$0.49 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure0.40Basic EPS, Q1 FY2026, three months to 2025-12-28$0.40 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure0.36Basic EPS, Q2 FY2026, three months to 2026-03-29$0.36 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure0.42Basic EPS, Q3 FY2026, three months to 2026-06-28$0.42 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure

Balance sheet

Cash and equivalents$230.8m, Q3 FY2026
Long-term debt$801.1m, Q3 FY2026
Shareholders' equity$1.85bn, Q3 FY2026
Tetra Tech Inc, balance sheet, quarterly
Line itemUnitFY20232023-10-01Q1 FY20242023-12-31Q2 FY20242024-03-31Q3 FY20242024-06-30FY20242024-09-29Q1 FY20252024-12-29Q2 FY20252025-03-30Q3 FY20252025-06-29FY20252025-09-28Q1 FY20262025-12-28Q2 FY20262026-03-29Q3 FY20262026-06-28
Cash and equivalents$m169Cash and equivalents, FY2023, at 2023-10-01$168.8m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure199Cash and equivalents, Q1 FY2024, at 2023-12-31$198.7m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-02-02, accession 0000831641-24-000008.Report this figure210Cash and equivalents, Q2 FY2024, at 2024-03-31$210.3m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-05-03, accession 0000831641-24-000029.Report this figure212Cash and equivalents, Q3 FY2024, at 2024-06-30$212.3m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-08-02, accession 0000831641-24-000035.Report this figure233Cash and equivalents, FY2024, at 2024-09-29$232.7m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure248Cash and equivalents, Q1 FY2025, at 2024-12-29$248.1m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure179Cash and equivalents, Q2 FY2025, at 2025-03-30$179.4m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure243Cash and equivalents, Q3 FY2025, at 2025-06-29$242.8m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure167Cash and equivalents, FY2025, at 2025-09-28$167.5m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure269Cash and equivalents, Q1 FY2026, at 2025-12-28$269.4m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure224Cash and equivalents, Q2 FY2026, at 2026-03-29$223.6m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure231Cash and equivalents, Q3 FY2026, at 2026-06-28$230.8m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Current assets$m1,356Current assets, FY2023, at 2023-10-01$1.36bn. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure1,454Current assets, Q1 FY2024, at 2023-12-31$1.45bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-02-02, accession 0000831641-24-000008.Report this figure1,480Current assets, Q2 FY2024, at 2024-03-31$1.48bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-05-03, accession 0000831641-24-000029.Report this figure1,506Current assets, Q3 FY2024, at 2024-06-30$1.51bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-08-02, accession 0000831641-24-000035.Report this figure1,527Current assets, FY2024, at 2024-09-29$1.53bn. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure1,632Current assets, Q1 FY2025, at 2024-12-29$1.63bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure1,666Current assets, Q2 FY2025, at 2025-03-30$1.67bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure1,620Current assets, Q3 FY2025, at 2025-06-29$1.62bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure1,621Current assets, FY2025, at 2025-09-28$1.62bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure1,604Current assets, Q1 FY2026, at 2025-12-28$1.60bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure1,542Current assets, Q2 FY2026, at 2026-03-29$1.54bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure1,580Current assets, Q3 FY2026, at 2026-06-28$1.58bn. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Total assets$m3,820Total assets, FY2023, at 2023-10-01$3.82bn. XBRL concept us-gaap:Assets. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure3,951Total assets, Q1 FY2024, at 2023-12-31$3.95bn. XBRL concept us-gaap:Assets. 10-Q filed 2024-02-02, accession 0000831641-24-000008.Report this figure4,071Total assets, Q2 FY2024, at 2024-03-31$4.07bn. XBRL concept us-gaap:Assets. 10-Q filed 2024-05-03, accession 0000831641-24-000029.Report this figure4,085Total assets, Q3 FY2024, at 2024-06-30$4.08bn. XBRL concept us-gaap:Assets. 10-Q filed 2024-08-02, accession 0000831641-24-000035.Report this figure4,193Total assets, FY2024, at 2024-09-29$4.19bn. XBRL concept us-gaap:Assets. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure4,179Total assets, Q1 FY2025, at 2024-12-29$4.18bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure4,184Total assets, Q2 FY2025, at 2025-03-30$4.18bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure4,353Total assets, Q3 FY2025, at 2025-06-29$4.35bn. XBRL concept us-gaap:Assets. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure4,282Total assets, FY2025, at 2025-09-28$4.28bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure4,265Total assets, Q1 FY2026, at 2025-12-28$4.26bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure4,362Total assets, Q2 FY2026, at 2026-03-29$4.36bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure4,388Total assets, Q3 FY2026, at 2026-06-28$4.39bn. XBRL concept us-gaap:Assets. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Current liabilities$m1,208Current liabilities, FY2023, at 2023-10-01$1.21bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure1,161Current liabilities, Q1 FY2024, at 2023-12-31$1.16bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-02-02, accession 0000831641-24-000008.Report this figure1,194Current liabilities, Q2 FY2024, at 2024-03-31$1.19bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-05-03, accession 0000831641-24-000029.Report this figure1,246Current liabilities, Q3 FY2024, at 2024-06-30$1.25bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-08-02, accession 0000831641-24-000035.Report this figure1,220Current liabilities, FY2024, at 2024-09-29$1.22bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure1,267Current liabilities, Q1 FY2025, at 2024-12-29$1.27bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure1,517Current liabilities, Q2 FY2025, at 2025-03-30$1.52bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure1,376Current liabilities, Q3 FY2025, at 2025-06-29$1.38bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure1,379Current liabilities, FY2025, at 2025-09-28$1.38bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure1,221Current liabilities, Q1 FY2026, at 2025-12-28$1.22bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure1,229Current liabilities, Q2 FY2026, at 2026-03-29$1.23bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure1,334Current liabilities, Q3 FY2026, at 2026-06-28$1.33bn. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Long-term debt$m880Long-term debt, FY2023, at 2023-10-01$879.5m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2024-08-02, accession 0000831641-24-000035.Report this figure945Long-term debt, Q1 FY2024, at 2023-12-31$945.3m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2024-02-02, accession 0000831641-24-000008.Report this figure951Long-term debt, Q2 FY2024, at 2024-03-31$951.0m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2024-05-03, accession 0000831641-24-000029.Report this figure862Long-term debt, Q3 FY2024, at 2024-06-30$861.8m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2024-08-02, accession 0000831641-24-000035.Report this figure813Long-term debt, FY2024, at 2024-09-29$812.6m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure888Long-term debt, Q1 FY2025, at 2024-12-29$888.5m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure764Long-term debt, Q2 FY2025, at 2025-03-30$764.2m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure862Long-term debt, Q3 FY2025, at 2025-06-29$862.5m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure763Long-term debt, FY2025, at 2025-09-28$763.4m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure834Long-term debt, Q1 FY2026, at 2025-12-28$834.3m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure880Long-term debt, Q2 FY2026, at 2026-03-29$880.2m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure801Long-term debt, Q3 FY2026, at 2026-06-28$801.1m. XBRL concept us-gaap:LongTermDebtNoncurrent. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure
Current portion of debt$m0.0Current portion of debt, FY2023, at 2023-10-01$0. XBRL concept us-gaap:LongTermDebtCurrent. 10-K filed 2023-11-22, accession 0000831641-23-000082.Report this figurenot reportednot reportednot reported0.0Current portion of debt, FY2024, at 2024-09-29$0. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figurenot reported250Current portion of debt, Q2 FY2025, at 2025-03-30$250.0m. XBRL concept us-gaap:LongTermDebtCurrent. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figurenot reportednot reportednot reportednot reportednot reported
Shareholders' equity$m1,403Shareholders' equity, FY2023, at 2023-10-01$1.40bn. XBRL concept us-gaap:StockholdersEquity. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure1,538Shareholders' equity, Q1 FY2024, at 2023-12-31$1.54bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2024-02-02, accession 0000831641-24-000008.Report this figure1,585Shareholders' equity, Q2 FY2024, at 2024-03-31$1.58bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2024-05-03, accession 0000831641-24-000029.Report this figure1,666Shareholders' equity, Q3 FY2024, at 2024-06-30$1.67bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2024-08-02, accession 0000831641-24-000035.Report this figure1,830Shareholders' equity, FY2024, at 2024-09-29$1.83bn. XBRL concept us-gaap:StockholdersEquity. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure1,692Shareholders' equity, Q1 FY2025, at 2024-12-29$1.69bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure1,574Shareholders' equity, Q2 FY2025, at 2025-03-30$1.57bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-05-08, accession 0000831641-25-000019.Report this figure1,742Shareholders' equity, Q3 FY2025, at 2025-06-29$1.74bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-08-01, accession 0000831641-25-000023.Report this figure1,780Shareholders' equity, FY2025, at 2025-09-28$1.78bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure1,846Shareholders' equity, Q1 FY2026, at 2025-12-28$1.85bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure1,863Shareholders' equity, Q2 FY2026, at 2026-03-29$1.86bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure1,852Shareholders' equity, Q3 FY2026, at 2026-06-28$1.85bn. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure

Cash flow

Operating cash flow$228.9m, Q3 FY2026
Capital expenditure$3.8m, Q3 FY2026
Share repurchases$100.0m, Q3 FY2026
Tetra Tech Inc, cash flow, quarterly
Line itemUnitQ4 FY20232023-10-01Q1 FY20242023-12-31Q2 FY20242024-03-31Q3 FY20242024-06-30Q4 FY20242024-09-29Q1 FY20252024-12-29Q2 FY20252025-03-30Q3 FY20252025-06-29Q4 FY20252025-09-28Q1 FY20262025-12-28Q2 FY20262026-03-29Q3 FY20262026-06-28
Operating cash flow$m122Operating cash flow, Q4 FY2023, three months to 2023-10-01$122.4m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure9.2Operating cash flow, Q1 FY2024, three months to 2023-12-31$9.2m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure103Operating cash flow, Q2 FY2024, three months to 2024-03-31$102.9m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-05-08, accession 0000831641-25-000019. Derived: 6-month figure less the 3-month figure.Report this figure141Operating cash flow, Q3 FY2024, three months to 2024-06-30$140.9m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-08-01, accession 0000831641-25-000023. Derived: 9-month figure less the 6-month figure.Report this figure106Operating cash flow, Q4 FY2024, three months to 2024-09-29$105.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure13.1Operating cash flow, Q1 FY2025, three months to 2024-12-29$13.1m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure(5.8)Operating cash flow, Q2 FY2025, three months to 2025-03-30−$5.8m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-01, accession 0000831641-26-000011. Derived: 6-month figure less the 3-month figure.Report this figure350Operating cash flow, Q3 FY2025, three months to 2025-06-29$349.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-07-31, accession 0000831641-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure101Operating cash flow, Q4 FY2025, three months to 2025-09-28$100.8m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure72.3Operating cash flow, Q1 FY2026, three months to 2025-12-28$72.3m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure165Operating cash flow, Q2 FY2026, three months to 2026-03-29$165.3m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-01, accession 0000831641-26-000011. Derived: 6-month figure less the 3-month figure.Report this figure229Operating cash flow, Q3 FY2026, three months to 2026-06-28$228.9m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-07-31, accession 0000831641-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure
Capital expenditure$m9.6Capital expenditure, Q4 FY2023, three months to 2023-10-01$9.6m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure3.4Capital expenditure, Q1 FY2024, three months to 2023-12-31$3.4m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure4.0Capital expenditure, Q2 FY2024, three months to 2024-03-31$4.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-05-08, accession 0000831641-25-000019. Derived: 6-month figure less the 3-month figure.Report this figure3.9Capital expenditure, Q3 FY2024, three months to 2024-06-30$3.9m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-08-01, accession 0000831641-25-000023. Derived: 9-month figure less the 6-month figure.Report this figure6.8Capital expenditure, Q4 FY2024, three months to 2024-09-29$6.8m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure3.4Capital expenditure, Q1 FY2025, three months to 2024-12-29$3.4m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure5.6Capital expenditure, Q2 FY2025, three months to 2025-03-30$5.6m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-01, accession 0000831641-26-000011. Derived: 6-month figure less the 3-month figure.Report this figure3.5Capital expenditure, Q3 FY2025, three months to 2025-06-29$3.5m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-07-31, accession 0000831641-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure6.1Capital expenditure, Q4 FY2025, three months to 2025-09-28$6.1m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure4.2Capital expenditure, Q1 FY2026, three months to 2025-12-28$4.2m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure6.0Capital expenditure, Q2 FY2026, three months to 2026-03-29$6.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-01, accession 0000831641-26-000011. Derived: 6-month figure less the 3-month figure.Report this figure3.8Capital expenditure, Q3 FY2026, three months to 2026-06-28$3.8m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-07-31, accession 0000831641-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure
Dividends paid$m13.8Dividends paid, Q4 FY2023, three months to 2023-10-01$13.8m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure13.9Dividends paid, Q1 FY2024, three months to 2023-12-31$13.9m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure13.9Dividends paid, Q2 FY2024, three months to 2024-03-31$13.9m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2025-05-08, accession 0000831641-25-000019. Derived: 6-month figure less the 3-month figure.Report this figure15.5Dividends paid, Q3 FY2024, three months to 2024-06-30$15.5m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2025-08-01, accession 0000831641-25-000023. Derived: 9-month figure less the 6-month figure.Report this figure15.5Dividends paid, Q4 FY2024, three months to 2024-09-29$15.5m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure15.5Dividends paid, Q1 FY2025, three months to 2024-12-29$15.5m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure15.4Dividends paid, Q2 FY2025, three months to 2025-03-30$15.4m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2026-05-01, accession 0000831641-26-000011. Derived: 6-month figure less the 3-month figure.Report this figure17.1Dividends paid, Q3 FY2025, three months to 2025-06-29$17.1m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2026-07-31, accession 0000831641-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure17.0Dividends paid, Q4 FY2025, three months to 2025-09-28$17.0m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure16.9Dividends paid, Q1 FY2026, three months to 2025-12-28$16.9m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure16.9Dividends paid, Q2 FY2026, three months to 2026-03-29$16.9m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2026-05-01, accession 0000831641-26-000011. Derived: 6-month figure less the 3-month figure.Report this figure18.6Dividends paid, Q3 FY2026, three months to 2026-06-28$18.6m. XBRL concept us-gaap:PaymentsOfDividendsCommonStock. 10-Q filed 2026-07-31, accession 0000831641-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure
Share repurchases$m0.0Share repurchases, Q4 FY2023, three months to 2023-10-01$0. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure0.0Share repurchases, Q1 FY2024, three months to 2023-12-31$0. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2025-01-31, accession 0000831641-25-000005.Report this figure0.0Share repurchases, Q2 FY2024, three months to 2024-03-31$0. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2025-05-08, accession 0000831641-25-000019. Derived: 6-month figure less the 3-month figure.Report this figure0.0Share repurchases, Q3 FY2024, three months to 2024-06-30$0. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2025-08-01, accession 0000831641-25-000023. Derived: 9-month figure less the 6-month figure.Report this figure0.0Share repurchases, Q4 FY2024, three months to 2024-09-29$0. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure25.0Share repurchases, Q1 FY2025, three months to 2024-12-29$25.0m. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure150Share repurchases, Q2 FY2025, three months to 2025-03-30$150.0m. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2026-05-01, accession 0000831641-26-000011. Derived: 6-month figure less the 3-month figure.Report this figure25.0Share repurchases, Q3 FY2025, three months to 2025-06-29$25.0m. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2026-07-31, accession 0000831641-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure50.0Share repurchases, Q4 FY2025, three months to 2025-09-28$50.0m. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-K filed 2025-11-20, accession 0000831641-25-000032. Derived: 12-month figure less the 9-month figure.Report this figure50.0Share repurchases, Q1 FY2026, three months to 2025-12-28$50.0m. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure52.0Share repurchases, Q2 FY2026, three months to 2026-03-29$52.0m. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2026-05-01, accession 0000831641-26-000011. Derived: 6-month figure less the 3-month figure.Report this figure100Share repurchases, Q3 FY2026, three months to 2026-06-28$100.0m. XBRL concept us-gaap:PaymentsForRepurchaseOfCommonStock. 10-Q filed 2026-07-31, accession 0000831641-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure

Shares

Diluted shares (weighted)259.78m, Q3 FY2026
Tetra Tech Inc, shares, quarterly
Line itemUnitQ4 FY20232023-10-01Q1 FY20242023-12-31Q2 FY20242024-03-31Q3 FY20242024-06-30Q4 FY20242024-09-29Q1 FY20252024-12-29Q2 FY20252025-03-30Q3 FY20252025-06-29Q4 FY20252025-09-28Q1 FY20262025-12-28Q2 FY20262026-03-29Q3 FY20262026-06-28
Diluted shares (weighted)m shares269Diluted shares (weighted), Q4 FY2023, three months to 2023-10-01268,510,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-K filed 2024-11-19, accession 0000831641-24-000063.Report this figure269Diluted shares (weighted), Q1 FY2024, three months to 2023-12-31268,690,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure269Diluted shares (weighted), Q2 FY2024, three months to 2024-03-31269,375,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure270Diluted shares (weighted), Q3 FY2024, three months to 2024-06-30270,260,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure272Diluted shares (weighted), Q4 FY2024, three months to 2024-09-29271,656,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure272Diluted shares (weighted), Q1 FY2025, three months to 2024-12-29271,886,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure267Diluted shares (weighted), Q2 FY2025, three months to 2025-03-30267,439,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure265Diluted shares (weighted), Q3 FY2025, three months to 2025-06-29264,855,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure264Diluted shares (weighted), Q4 FY2025, three months to 2025-09-28264,247,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-K filed 2025-11-20, accession 0000831641-25-000032.Report this figure263Diluted shares (weighted), Q1 FY2026, three months to 2025-12-28262,731,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-01-30, accession 0000831641-26-000005.Report this figure262Diluted shares (weighted), Q2 FY2026, three months to 2026-03-29261,919,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-01, accession 0000831641-26-000011.Report this figure260Diluted shares (weighted), Q3 FY2026, three months to 2026-06-28259,779,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure

Shares outstanding: 256.04mShares outstanding, period not labelled, at 2026-07-20256,044,428 shares. XBRL concept dei:EntityCommonStockSharesOutstanding. 10-Q filed 2026-07-31, accession 0000831641-26-000017.Report this figure at Jul 20, 2026, from the cover of the 10-Q filed Jul 31, 2026.

Source: SEC EDGAR, XBRL company facts. Last ingested by Listed: Oct 24, 2026, 15:25 ET. Listed shows no prices and gives no investment advice.