Quick Takeaways
- TTEK - TETRA TECH INC has 27 insiders with reported activity on this page.
- Net insider value flow over the last year: -$487,455.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 27 Insiders of TETRA TECH INC
- Symbol
- TTEK on Nasdaq
- Location
- Pasadena, CA
What Changed
- Buy value: ; sell value: $487,455.
- Net share flow: -12,369.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$487,455.
Buys
$0
Shares: 0
Insiders: 0
Sells
$487,455
Shares: 12,369
Insiders: 2
Net
-$487,455
Shares: -12,369
Insiders: -2
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 9,979 | $0 | $401,405 | -$401,405 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 2,390 | $0 | $86,050 | -$86,050 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
TETRA TECH INC executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Dan L. Batrack | Chairman and CEO, Director | $14,197,658 | Mixed | 19 Nov 2025 | ||
| William R. Brownlie | SVP, Chief Engineer | $14,143,678 | Mixed | 02 Oct 2022 | ||
| Leslie L. Shoemaker | EVP, Chief Sustainability | $11,696,970 | Mixed | 19 Nov 2025 | ||
| J. Christopher Lewis | Director | $9,582,943 | Mixed | 14 Dec 2022 | ||
| Kimberly E. Ritrievi | Director | $6,898,137 | Mixed | 16 Mar 2026 | ||
| Craig L. Christensen | Svp, Cio | $6,031,748 | Mixed | 02 Oct 2022 | ||
| Richard A. Lemmon | SVP, Corporate Administration | $5,930,744 | Mixed | 02 Oct 2022 | ||
| Steven M. Burdick | Evp, Cfo | $5,090,642 | Mixed | 06 Feb 2026 | ||
| Joanne M. Maguire | Director | $4,563,437 | Mixed | 30 Sep 2024 | ||
| Preston Hopson | EVP, Chief Legal/Human Capital | $3,228,527 | Mixed | 19 Nov 2025 | ||
| Bernard Teufele | SVP, Canada and South America | $2,136,148 | Mixed | 02 Oct 2022 | ||
| Brian N. Carter | SVP, Corporate Controller | $2,059,172 | -$401,405 | -16% | Mixed | 04 Feb 2026 |
| Derek G. Amidon | SVP, Comm./Int'l Svcs. Group | $2,054,737 | Mixed | 01 Oct 2023 | ||
| J. Kenneth Thompson | Director | $2,017,188 | Mixed | 14 Feb 2024 | ||
| Gary Birkenbeuel | Director | $1,780,711 | -$86,050 | -4.6% | Mixed | 19 Nov 2025 |
| Roger R. Argus | President and CEO | $1,715,381 | Mixed | 19 Feb 2026 | ||
| Jill Hudkins | President | $989,632 | Mixed | 27 Nov 2023 | ||
| Kirsten M. Volpi | Director | $759,700 | Mixed | 10 Feb 2026 | ||
| Prashant Gandhi | Director | $537,144 | Mixed | 19 Nov 2025 | ||
| Patrick C. Haden | Director | $507,006 | Mixed | 17 Mar 2022 | ||
| Mark A. Rynning | SVP, R&S Infrastructure | $395,793 | Mixed | 18 Nov 2021 | ||
| Christiana Obiaya | Director | $369,434 | Mixed | 19 Feb 2026 | ||
| Brendan M. O'Rourke | SVP, Enterprise Risk Mgmt. | $167,535 | Mixed | 16 Nov 2022 | ||
| John M. Douglas | Director | $17,025 | Mixed | 27 Feb 2025 | ||
| M. Susan Hardwick | Director | Mixed | 26 Jan 2026 | |||
| Jeffrey R. Feeler | Director | Mixed | 26 Jan 2026 | |||
| Eric W. Thornburg | Director | Mixed | 30 Mar 2026 |
Top shareholders of TETRA TECH INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
|
Company |
9.7%
|
25,800,544
|
$865,350,246 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
9.7%
from 13D/G
|
25,731,629
|
$863,038,830 | — | 31 Dec 2025 | |
| PICTET ASSET MANAGEMENT SA |
13D/G
|
— |
4.9%
|
13,006,243
|
$434,148,391 | -$48,471,298 | 16 Oct 2025 | |
| Pictet Asset Management Holding SA |
13F
|
Company |
4.2%
|
11,204,346
|
$375,811,134 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
3.6%
|
9,424,246
|
$316,089,211 | — | 31 Dec 2025 | |
| Capital International Investors |
13F
|
Company |
3.4%
|
9,016,577
|
$302,415,993 | — | 31 Dec 2025 | |
| Neuberger Berman Group LLC |
13F
|
Company |
3.1%
|
8,351,221
|
$280,099,964 | — | 31 Dec 2025 | |
| SANDS CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.6%
|
7,007,004
|
$235,014,914 | — | 31 Dec 2025 | |
| Amundi |
13F
|
Individual |
1.9%
|
5,095,797
|
$170,897,995 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.9%
|
5,082,342
|
$170,495,825 | — | 31 Dec 2025 | |
| FIL Ltd |
13F
|
Company |
1.8%
|
4,667,958
|
$156,563,312 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.4%
|
3,676,680
|
$123,321,966 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
1.3%
|
3,433,575
|
$115,162,106 | — | 31 Dec 2025 | |
| Impax Asset Management Group plc |
13F
|
Company |
1.2%
|
3,208,190
|
$107,602,693 | — | 31 Dec 2025 | |
| LGT Group Foundation |
13F
|
Company |
1.2%
|
3,061,289
|
$103,991,987 | — | 31 Dec 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
1.2%
|
3,078,999
|
$103,269,626 | — | 31 Dec 2025 | |
| FERNBRIDGE CAPITAL MANAGEMENT LP |
13F
|
Company |
1.2%
|
3,066,841
|
$102,861,847 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
1.1%
|
2,875,372
|
$96,439,970 | — | 31 Dec 2025 | |
| Ninety One UK Ltd |
13F
|
Company |
1.1%
|
2,802,991
|
$94,012,302 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.98%
|
2,613,627
|
$87,661,046 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.97%
|
2,570,107
|
$86,201,401 | — | 31 Dec 2025 | |
| M&G Plc |
13F
|
Company |
0.91%
|
2,405,586
|
$81,789,924 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.89%
|
2,356,548
|
$79,038,633 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.89%
|
2,350,923
|
$78,849,957 | — | 31 Dec 2025 | |
| Robeco Schweiz AG |
13F
|
Company |
0.88%
|
2,347,104
|
$78,721,868 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.87%
|
2,320,740
|
$77,837,715 | — | 31 Dec 2025 | |
| Van Berkom & Associates Inc. |
13F
|
Company |
0.86%
|
2,292,595
|
$76,894,000 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.81%
|
2,158,990
|
$72,412,525 | — | 31 Dec 2025 | |
| AVIVA PLC |
13F
|
Company |
0.77%
|
2,039,264
|
$68,396,915 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.76%
|
2,019,711
|
$67,741,098 | — | 31 Dec 2025 | |
| JANUS HENDERSON GROUP PLC |
13F
|
Company |
0.74%
|
1,961,290
|
$65,772,712 | — | 31 Dec 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.69%
|
1,826,067
|
$61,247,337 | — | 31 Dec 2025 | |
| Capital Research Global Investors |
13F
|
Company |
0.67%
|
1,775,766
|
$59,559,192 | — | 31 Dec 2025 | |
| Deutsche Girozentrale DekaBank |
13F
|
Individual |
0.11%
|
279,017
|
$59,077,000 | — | 31 Dec 2025 | |
| Copeland Capital Management, LLC |
13F
|
Company |
0.63%
|
1,663,090
|
$55,780,109 | — | 31 Dec 2025 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
0.62%
|
1,656,991
|
$55,575,478 | — | 31 Dec 2025 | |
| KING LUTHER CAPITAL MANAGEMENT CORP |
13F
|
Company |
0.6%
|
1,590,916
|
$53,359,323 | — | 31 Dec 2025 | |
| Allianz Asset Management GmbH |
13F
|
Company |
0.6%
|
1,586,886
|
$53,224,156 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.59%
|
1,554,346
|
$52,132,766 | — | 31 Dec 2025 | |
| Corient Private Wealth LLC |
13F
|
Company |
0.58%
|
1,537,293
|
$51,603,954 | — | 31 Dec 2025 | |
| Quantinno Capital Management LP |
13F
|
Company |
0.57%
|
1,518,014
|
$50,914,221 | — | 31 Dec 2025 | |
| Aberdeen Group plc |
13F
|
Company |
0.56%
|
1,499,337
|
$50,287,763 | — | 31 Dec 2025 | |
| BESSEMER GROUP INC |
13F
|
Company |
0.53%
|
1,395,039
|
$46,789,000 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.52%
|
1,385,807
|
$46,479,966 | — | 31 Dec 2025 | |
| PGGM Investments |
13F
|
Individual |
0.52%
|
1,381,017
|
$46,319,000 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.46%
|
1,216,328
|
$40,795,642 | — | 31 Dec 2025 | |
| Premier Fund Managers Ltd |
13F
|
Company |
0.43%
|
1,136,135
|
$38,607,000 | — | 31 Dec 2025 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
0.43%
|
1,132,951
|
$37,999,177 | — | 31 Dec 2025 | |
| NEUMEIER POMA INVESTMENT COUNSEL LLC |
13F
|
Company |
0.42%
|
1,126,603
|
$37,786,265 | — | 31 Dec 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.4%
|
1,055,274
|
$35,393,890 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for TETRA TECH INC
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Kimberly E. Ritrievi | TTEK | COMMON STOCK | Award | 15.6% | 25,883 | 192,259 | 16 Mar 2026 | Direct | ||
| Kimberly E. Ritrievi | TTEK | COMMON STOCK | Options Exercise | 14.4% | 20,968 | 166,376 | 16 Mar 2026 | Direct | ||
| Kimberly E. Ritrievi | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -100% | -20,968 | 0 | 16 Mar 2026 | Direct | ||
| Christiana Obiaya | TTEK | COMMON STOCK | Options Exercise | 5.4% | 495 | 9,666 | 19 Feb 2026 | Direct | ||
| Christiana Obiaya | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -100% | -495 | 0 | 19 Feb 2026 | Direct | ||
| Roger R. Argus | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 28,174 | 28,174 | 19 Feb 2026 | Direct | |||
| Kirsten M. Volpi | TTEK | COMMON STOCK | Options Exercise | 1.44% | 1,000 | 70,218 | 10 Feb 2026 | Direct | ||
| Kirsten M. Volpi | TTEK | STOCK OPTION (RIGHT TO BUY) | Options Exercise | -11.1% | -1,000 | 8,000 | 10 Feb 2026 | Direct | ||
| Steven M. Burdick | TTEK | COMMON STOCK | Gift | -7.43% | -11,100 | 138,251 | 06 Feb 2026 | Direct | ||
| Brian N. Carter | TTEK | COMMON STOCK | Sale | -17.7% | $401,405 | $40.22 | -9,979 | 46,496 | 04 Feb 2026 | Direct |
| M. Susan Hardwick | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 1,754 | 1,754 | 26 Jan 2026 | Direct | |||
| Jeffrey R. Feeler | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 1,754 | 1,754 | 26 Jan 2026 | Direct | |||
| Gary Birkenbeuel | TTEK | COMMON STOCK | Award | 9.43% | 4,397 | 51,032 | 12 Jan 2026 | Direct | ||
| Gary Birkenbeuel | TTEK | COMMON STOCK | Options Exercise | 3.53% | 1,590 | 46,635 | 12 Jan 2026 | Direct | ||
| Gary Birkenbeuel | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -100% | -1,590 | 0 | 12 Jan 2026 | Direct | ||
| Kimberly E. Ritrievi | TTEK | COMMON STOCK | Award | 1.54% | 2,208 | 145,408 | 12 Jan 2026 | Direct | ||
| Kirsten M. Volpi | TTEK | COMMON STOCK | Options Exercise | 2.58% | 1,718 | 68,218 | 30 Nov 2025 | Direct | ||
| Kirsten M. Volpi | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -100% | -1,718 | 0 | 30 Nov 2025 | Direct | ||
| Leslie L. Shoemaker | TTEK | COMMON STOCK | Tax liability | -1.12% | -3,707 | 325,821 | 30 Nov 2025 | Direct | ||
| Leslie L. Shoemaker | TTEK | COMMON STOCK | Options Exercise | 2.08% | 6,717 | 329,528 | 30 Nov 2025 | Direct | ||
| Leslie L. Shoemaker | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -52.5% | -6,717 | 6,070 | 30 Nov 2025 | Direct | ||
| Christiana Obiaya | TTEK | COMMON STOCK | Options Exercise | 23% | 1,718 | 9,171 | 30 Nov 2025 | Direct | ||
| Christiana Obiaya | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -100% | -1,718 | 0 | 30 Nov 2025 | Direct | ||
| Preston Hopson | TTEK | COMMON STOCK | Tax liability | -2.4% | -2,044 | 83,142 | 30 Nov 2025 | Direct | ||
| Preston Hopson | TTEK | COMMON STOCK | Options Exercise | 6.49% | 5,190 | 85,186 | 30 Nov 2025 | Direct | ||
| Preston Hopson | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -48.7% | -5,190 | 5,460 | 30 Nov 2025 | Direct | ||
| Prashant Gandhi | TTEK | COMMON STOCK | Options Exercise | 11.6% | 1,718 | 16,553 | 30 Nov 2025 | Direct | ||
| Prashant Gandhi | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -100% | -1,718 | 0 | 30 Nov 2025 | Direct | ||
| Brian N. Carter | TTEK | COMMON STOCK | Tax liability | -2.59% | -1,500 | 56,475 | 30 Nov 2025 | Direct | ||
| Brian N. Carter | TTEK | COMMON STOCK | Options Exercise | 4.98% | 2,748 | 57,975 | 30 Nov 2025 | Direct | ||
| Brian N. Carter | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -47.6% | -2,748 | 3,030 | 30 Nov 2025 | Direct | ||
| Steven M. Burdick | TTEK | COMMON STOCK | Tax liability | -2.64% | -4,044 | 149,219 | 30 Nov 2025 | Direct | ||
| Steven M. Burdick | TTEK | COMMON STOCK | Options Exercise | 5.02% | 7,327 | 153,263 | 30 Nov 2025 | Direct | ||
| Steven M. Burdick | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -50.1% | -7,327 | 7,285 | 30 Nov 2025 | Direct | ||
| Roger R. Argus | TTEK | COMMON STOCK | Tax liability | -6.7% | -2,865 | 39,890 | 30 Nov 2025 | Direct | ||
| Roger R. Argus | TTEK | COMMON STOCK | Options Exercise | 13.8% | 5,190 | 42,755 | 30 Nov 2025 | Direct | ||
| Roger R. Argus | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -48.7% | -5,190 | 5,460 | 30 Nov 2025 | Direct | ||
| Dan L. Batrack | TTEK | COMMON STOCK | Tax liability | -6.31% | -22,396 | 332,498 | 30 Nov 2025 | Direct | ||
| Dan L. Batrack | TTEK | COMMON STOCK | Options Exercise | 12.9% | 40,585 | 354,894 | 30 Nov 2025 | Direct | ||
| Dan L. Batrack | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Options Exercise | -48.8% | -40,585 | 42,505 | 30 Nov 2025 | Direct | ||
| Kirsten M. Volpi | TTEK | COMMON STOCK | Options Exercise | 1.47% | 1,000 | 69,218 | 28 Nov 2025 | Direct | ||
| Kirsten M. Volpi | TTEK | STOCK OPTION (RIGHT TO BUY) | Options Exercise | -10% | -1,000 | 9,000 | 28 Nov 2025 | Direct | ||
| Kimberly E. Ritrievi | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 1,964 | 1,964 | 19 Nov 2025 | Direct | |||
| Kirsten M. Volpi | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 1,964 | 1,964 | 19 Nov 2025 | Direct | |||
| Leslie L. Shoemaker | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 19,641 | 19,641 | 19 Nov 2025 | Direct | |||
| Christiana Obiaya | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 1,964 | 1,964 | 19 Nov 2025 | Direct | |||
| Preston Hopson | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 14,029 | 14,029 | 19 Nov 2025 | Direct | |||
| Prashant Gandhi | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 1,964 | 1,964 | 19 Nov 2025 | Direct | |||
| Brian N. Carter | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 5,612 | 5,612 | 19 Nov 2025 | Direct | |||
| Steven M. Burdick | TTEK | RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | Award | 19,641 | 19,641 | 19 Nov 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.