TTEKNasdaqServices-Engineering ServicesFiscal year ends September 27
TETRA TECH INC
Financials through Q3 FY2026, quarter ended Jun 28, 2026Last filing: 10-Q on Jul 31, 2026
$34.63−0.09 (-0.26%)
Close on Oct 19, 2026
- Market cap
- $9.00B
- P/E (TTM)
- 20.9
- Dividend yield
- 0.71%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
98.9%
253M of 256M shares
Institutional holders
552
54 new, 84 sold out
Net institutional buying
8M
In Q2 2026
Insider trades, 12 months
1 buys · 2 sales
Net sold $782.68K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| AllianceBernstein L.P. | 2,637,734 | 5.00% | 13G (passive) amendment | Dec 31, 2023 |
| BlackRock, Inc. | 26,026,773 | 9.70% | 13G (passive) amendment | Dec 31, 2024 |
| Vanguard Capital Management | 13,656,856 | 5.23% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of TTEK | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 28,675,276 | 11.20% | $828.43M | +1,884,870 | 0.01% |
| Vanguard Portfolio Management LLC | 12,467,970 | 4.87% | $360.20M | −175,124 | 0.02% |
| Vanguard Capital Management LLC | 11,725,738 | 4.58% | $338.76M | +16,587 | 0.01% |
| Capital International Investors | 11,651,238 | 4.55% | $336.60M | +265,971 | 0.07% |
| State Street Corp | 9,761,640 | 3.81% | $282.01M | +125,728 | 0.01% |
| FMR LLC | 8,768,611 | 3.42% | $253.33M | +8,440,359 | 0.01% |
| Geode Capital Management, LLC | 6,833,071 | 2.67% | $197.44M | +1,615,623 | 0.01% |
| FIL Ltd | 5,471,691 | 2.14% | $158.08M | +639,019 | 0.11% |
| Amundi | 5,098,519 | 1.99% | $147.26M | +349,272 | 0.04% |
| Fuller & Thaler Asset Management, Inc. | 4,921,268 | 1.92% | $142.18M | +1,606,825 | 0.39% |
| Pictet Asset Management Holding SA | 4,759,290 | 1.86% | $137.50M | −4,885,502 | 0.13% |
| Wellington Management Group Llp | 4,674,089 | 1.83% | $135.03M | −129,960 | 0.02% |
| Dimensional Fund Advisors LP | 4,446,215 | 1.74% | $128.45M | +656,975 | 0.02% |
| Neuberger Berman Group LLC | 4,408,987 | 1.72% | $127.38M | −2,860,670 | 0.08% |
| Arrowstreet Capital, Limited Partnership | 4,393,728 | 1.72% | $126.93M | +3,850,262 | 0.06% |
| Invesco Ltd. | 4,116,893 | 1.61% | $118.94M | +1,181,993 | 0.01% |
| Aqr Capital Management LLC | 4,111,603 | 1.61% | $117.10M | +2,597,141 | 0.04% |
| Impax Asset Management Group plc | 3,931,741 | 1.54% | $113.59M | +101,667 | 0.74% |
| LGT Group Foundation | 3,745,171 | 1.46% | $108.20M | +583,463 | 1.22% |
| Norges Bank | 3,230,988 | 1.26% | $93.34M | New | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 552 | 253M | 98.9% | 54 / 205 | 214 / 84 | 46M | 38M |
| Q1 2026 | 592 | 246M | 96.0% | 74 / 202 | 229 / 85 | 55M | 27M |
| Q4 2025 | 610 | 244M | 95.3% | 96 / 181 | 254 / 69 | 27M | 34M |
| Q3 2025 | 595 | 251M | 98.0% | 74 / 232 | 202 / 60 | 27M | 27M |
| Q2 2025 | 587 | 250M | 97.8% | 106 / 210 | 202 / 77 | 25M | 20M |
| Q1 2025 | 565 | 246M | 95.9% | 74 / 231 | 192 / 136 | 38M | 28M |
| Q4 2024 | 636 | 237M | 92.6% | 98 / 213 | 232 / 97 | 28M | 30M |
| Q3 2024 | 644 | 240M | 93.6% | 93 / 203 | 249 / 42 | 39M | 18M |
| Q2 2024 | 600 | 245M | 95.8% | 118 / 192 | 201 / 27 | 23M | 20M |
| Q1 2024 | 512 | 243M | 94.8% | 59 / 168 | 191 / 50 | 14M | 13M |
| Q4 2023 | 509 | 242M | 94.5% | 77 / 148 | 203 / 31 | 19M | 14M |
| Q3 2023 | 469 | 236M | 92.3% | 62 / 151 | 176 / 42 | 32M | 14M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of TTEK | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 8,882,305 | 3.47% | $256.61M | 0.21% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 8,249,188 | 3.22% | $238.32M | 0.01% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 5,954,009 | 2.33% | $172.01M | 0.09% | Jun 30, 2026 |
| Fullerthaler Behavioral Small Cap Equity | 4,701,700 | 1.84% | $135.83M | 1.07% | Jun 30, 2026 |
| New Perspective Fund | 4,068,579 | 1.59% | $117.54M | 0.07% | Jun 30, 2026 |
| Vanguard Small-Cap Value Index Fund | 3,770,313 | 1.47% | $108.92M | 0.16% | Jun 30, 2026 |
| SMALLCAP World Fund Inc | 3,483,194 | 1.36% | $100.63M | 0.11% | Jun 30, 2026 |
| Fidelity Series Value Discovery Fund | 3,016,200 | 1.18% | $100.02M | 0.56% | Jul 31, 2026 |
| Vanguard Extended Market Index Fund | 2,977,514 | 1.16% | $86.02M | 0.09% | Jun 30, 2026 |
| Growth Fund | 2,192,104 | 0.86% | $63.33M | 0.11% | Jun 30, 2026 |
| Global X U.S. Infrastructure Development ETF | 1,914,460 | 0.75% | $52.63M | 0.39% | May 31, 2026 |
| Invesco S&P MidCap Quality ETF | 1,784,523 | 0.70% | $59.17M | 1.09% | Jul 31, 2026 |
| First Trust North American Energy Infrastructure Fund | 1,680,189 | 0.66% | $55.72M | 1.35% | Jul 31, 2026 |
| Growth Fund of America | 1,647,990 | 0.64% | $45.30M | 0.01% | May 31, 2026 |
| First Trust Water ETF | 1,609,682 | 0.63% | $46.50M | 2.51% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Dan L. Batrack | Chairman and CEO, Director | 335,564 | 0.13% | Dec 2, 2025 |
| Roger R. Argus | President and CEO | 40,300 | 0.02% | Feb 20, 2026 |
| Brian N. Carter | SVP, Corporate Controller | 46,496 | 0.02% | Feb 6, 2026 |
| Steven M. Burdick | EVP, CFO | 138,251 | 0.05% | Feb 6, 2026 |
| Preston Hopson | EVP, Chief Legal/Human Capital | 85,186 | 0.03% | Dec 2, 2025 |
| Leslie L. Shoemaker | EVP, Chief Sustainability | 329,528 | 0.13% | Dec 2, 2025 |
| Kirsten M. Volpi | Director | 74,218 | 0.03% | Aug 6, 2026 |
| Jeffrey R. Feeler | Director | 1,900 | 0.00% | May 15, 2026 |
| Eric W. Thornburg | Director | – | – | Apr 28, 2026 |
| Kimberly E. Ritrievi | Director | 159,043 | 0.06% | Mar 18, 2026 |
| Christiana Obiaya | Director | 9,666 | 0.00% | Feb 20, 2026 |
| M. Susan Hardwick | Director | – | – | Jan 28, 2026 |
| Gary Birkenbeuel | Director | 51,032 | 0.02% | Jan 14, 2026 |
| Prashant Gandhi | Director | 16,553 | 0.01% | Dec 2, 2025 |
| John M. Douglas | Director | 610 | 0.00% | Mar 3, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Dan L. Batrack CHIEF EXECUTIVE OFFICER, Director | Nov 18, 2031 | Sale | −15,000 | $28.76 | $431.40K | 159,029 |
| Kirsten M. Volpi Director | Aug 4, 2026 | Option exercise | +2,300 | $9.59 | $22.06K | 74,218 |
| Kirsten M. Volpi Director | Jun 4, 2026 | Option exercise | +1,700 | $9.59 | $16.30K | 71,918 |
| Jeffrey R. Feeler Director | May 15, 2026 | Buy | +1,900 | $26.41 | $50.18K | 1,900 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +2,050 | – | – | 159,043 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +2,125 | – | – | 164,658 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +1,900 | – | – | 162,533 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +795 | – | – | 160,633 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +795 | – | – | 159,838 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +1,718 | – | – | 166,376 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +2,910 | – | – | 156,993 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +1,925 | – | – | 154,083 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +2,250 | – | – | 152,158 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Option exercise | +4,500 | – | – | 149,908 |
| Kimberly E. Ritrievi Director | Mar 16, 2026 | Award | +25,883 | – | – | 192,259 |
| Christiana Obiaya Director | Feb 19, 2026 | Option exercise | +495 | – | – | 9,666 |
| Kirsten M. Volpi Director | Feb 10, 2026 | Option exercise | +1,000 | $9.59 | $9.59K | 70,218 |
| Steven M. Burdick EVP, CFO | Feb 6, 2026 | Gift | −11,100 | – | – | 138,251 |
| Brian N. Carter SVP, Corporate Controller | Feb 4, 2026 | Sale | −9,979 | $40.23 | $401.46K | 46,496 |
| Gary Birkenbeuel Director | Jan 12, 2026 | Award | +4,397 | – | – | 51,032 |
| Gary Birkenbeuel Director | Jan 12, 2026 | Option exercise | +1,590 | – | – | 46,635 |
| Kimberly E. Ritrievi Director | Jan 12, 2026 | Award | +2,208 | – | – | 145,408 |
| Christiana Obiaya Director | Nov 30, 2025 | Option exercise | +1,718 | – | – | 9,171 |
| Leslie L. Shoemaker EVP, Chief Sustainability | Nov 30, 2025 | Option exercise | +3,682 | – | – | 329,528 |
| Leslie L. Shoemaker EVP, Chief Sustainability | Nov 30, 2025 | Option exercise | +3,035 | – | – | 325,846 |
| Leslie L. Shoemaker EVP, Chief Sustainability | Nov 30, 2025 | Tax withholding | −3,707 | $34.74 | $128.78K | 325,821 |
| Prashant Gandhi Director | Nov 30, 2025 | Option exercise | +1,718 | – | – | 16,553 |
| Brian N. Carter SVP, Corporate Controller | Nov 30, 2025 | Tax withholding | −1,500 | $34.74 | $52.11K | 56,475 |
| Brian N. Carter SVP, Corporate Controller | Nov 30, 2025 | Option exercise | +1,228 | – | – | 57,975 |
| Brian N. Carter SVP, Corporate Controller | Nov 30, 2025 | Option exercise | +1,520 | – | – | 56,747 |
| Steven M. Burdick EVP, CFO | Nov 30, 2025 | Tax withholding | −4,044 | $34.74 | $140.49K | 149,219 |
| Steven M. Burdick EVP, CFO | Nov 30, 2025 | Option exercise | +3,682 | – | – | 153,263 |
| Steven M. Burdick EVP, CFO | Nov 30, 2025 | Option exercise | +3,645 | – | – | 149,581 |
| Dan L. Batrack Chairman and CEO, Director | Nov 30, 2025 | Option exercise | +21,255 | – | – | 335,564 |
| Dan L. Batrack Chairman and CEO, Director | Nov 30, 2025 | Option exercise | +19,330 | – | – | 354,894 |
| Dan L. Batrack Chairman and CEO, Director | Nov 30, 2025 | Tax withholding | −22,396 | $34.74 | $778.04K | 332,498 |
| Preston Hopson EVP, Chief Legal/Human Capital | Nov 30, 2025 | Option exercise | +2,455 | – | – | 85,186 |
| Preston Hopson EVP, Chief Legal/Human Capital | Nov 30, 2025 | Tax withholding | −2,044 | $34.74 | $71.01K | 83,142 |
| Preston Hopson EVP, Chief Legal/Human Capital | Nov 30, 2025 | Option exercise | +2,735 | – | – | 82,731 |
| Kirsten M. Volpi Director | Nov 30, 2025 | Option exercise | +1,718 | – | – | 68,218 |
| Roger R. Argus President | Nov 30, 2025 | Option exercise | +2,735 | – | – | 40,300 |
| Roger R. Argus President | Nov 30, 2025 | Tax withholding | −2,865 | $34.74 | $99.53K | 39,890 |
| Roger R. Argus President | Nov 30, 2025 | Option exercise | +2,455 | – | – | 42,755 |
| Kirsten M. Volpi Director | Nov 28, 2025 | Option exercise | +1,000 | $9.59 | $9.59K | 69,218 |
| Brian N. Carter SVP, Corporate Controller | Nov 18, 2025 | Award | +10,954 | – | – | 61,204 |
| Brian N. Carter SVP, Corporate Controller | Nov 18, 2025 | Tax withholding | −1,234 | $35.69 | $44.04K | 50,250 |
| Brian N. Carter SVP, Corporate Controller | Nov 18, 2025 | Option exercise | +1,265 | – | – | 51,484 |
| Brian N. Carter SVP, Corporate Controller | Nov 18, 2025 | Option exercise | +995 | – | – | 50,219 |
| Brian N. Carter SVP, Corporate Controller | Nov 18, 2025 | Tax withholding | −5,977 | $35.69 | $213.32K | 55,227 |
| Prashant Gandhi Director | Nov 18, 2025 | Award | +4,104 | – | – | 14,835 |
| Preston Hopson EVP, Chief Legal/Human Capital | Nov 18, 2025 | Tax withholding | −1,807 | $35.69 | $64.49K | 66,714 |
| Preston Hopson EVP, Chief Legal/Human Capital | Nov 18, 2025 | Award | +21,902 | – | – | 88,616 |
| Preston Hopson EVP, Chief Legal/Human Capital | Nov 18, 2025 | Tax withholding | −8,620 | $35.69 | $307.65K | 79,996 |
| Preston Hopson EVP, Chief Legal/Human Capital | Nov 18, 2025 | Option exercise | +2,535 | – | – | 68,521 |
| Preston Hopson EVP, Chief Legal/Human Capital | Nov 18, 2025 | Option exercise | +2,055 | – | – | 65,986 |
| Leslie L. Shoemaker EVP, Chief Sustainability | Nov 18, 2025 | Tax withholding | −3,141 | $35.69 | $112.10K | 310,539 |
| Leslie L. Shoemaker EVP, Chief Sustainability | Nov 18, 2025 | Award | +27,384 | – | – | 337,923 |
| Leslie L. Shoemaker EVP, Chief Sustainability | Nov 18, 2025 | Tax withholding | −15,112 | $35.69 | $539.35K | 322,811 |
| Leslie L. Shoemaker EVP, Chief Sustainability | Nov 18, 2025 | Option exercise | +3,170 | – | – | 313,680 |
| Leslie L. Shoemaker EVP, Chief Sustainability | Nov 18, 2025 | Option exercise | +2,520 | – | – | 310,510 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Carter Brian Officer | Feb 4, 2026 | 9,979 | $401.40K | Feb 4, 2026 | Performance Shares |
| R. Birkenbeuel Gary Director | Aug 14, 2025 | 2,390 | $86.05K | Aug 14, 2025 | Performance Shares |
| Kirsten M. Volpi Director | Feb 4, 2025 | 10,116 | $347.31K | Feb 4, 2025 | PERFORMANCE SHARES |
| Steven M. Burdick Officer | Sep 11, 2024 | 36,830 | $1.72M | Sep 11, 2024 | RESTRICTED STOCK |
| Kimberly E. Ritrievi Director | Sep 11, 2024 | 6,500 | $302.12K | Sep 11, 2024 | EXERCISED SHARES |
| Leslie L. Shoemaker Officer | Sep 10, 2024 | 78,420 | $3.53M | Sep 10, 2024 | PERFORMANCE SHARES |
| Kirsten M. Volpi Director | Sep 10, 2024 | 1,950 | $89.70K | Sep 10, 2024 | PERFORMANCE SHARES |
| Preston Hopson III Director | Aug 7, 2024 | 5,000 | $1.17M | Aug 6, 2024 | Restricted Stock Award |
| Dan L. Batrack Officer | Aug 6, 2024 | 17,924 | $4.15M | Aug 6, 2024 | Compensation |
| Joanne M. Maguire Director | Aug 5, 2024 | 862 | $194.16K | Aug 5, 2024 | STOCK OPTION EXERCISE |
| Leslie L. Shoemaker Officer | Jun 13, 2024 | 11,161 | $2.31M | Jun 13, 2024 | STOCK OPTION EXERCISE |
| Steven M. Burdick Officer | Feb 22, 2024 | 7,910 | $1.39M | Feb 22, 2024 | RESTRICTED STOCK |
| J. Kenneth Thompson Director | Feb 14, 2024 | 3,500 | $620.34K | Feb 14, 2024 | PERFORMANCE SHARES |
| Brian N. Carter Officer | Feb 9, 2024 | 5,580 | $984.98K | Feb 9, 2024 | STOCK OPTION EXERCISE |
| J. Kenneth Thompson Director | Feb 5, 2024 | 8,400 | $1.39M | Feb 5, 2024 | STOCK OPTION EXERCISE |