United States Professional & Commercial Services

Tetra Tech Inc (TTEK)

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Over the past 90 days, Tetra Tech Inc. recorded a single insider transaction involving a purchase of $50,179 in shares on May 15, 2026. This follows a period characterized by multiple insider sales. The company recently reported its latest earnings on April 29, 2026, exceeding expectations by 6.25%.
Ticker: TTEK Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Tetra Tech Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Feeler Jeffrey R
1 purchase — total 50,179 USD
Buy 15 May 2026
Value US$2,608,803.47 | Price 74.83 | Shares 11,805
Sale 4 Feb 2026
Value US$2,559,599.46 | Price 422.81 | Shares 72,544
Proposed sale 4 Feb 2026
Value US$401,400.29 | Price 40.22 | Shares 9,979
Sale 14 Aug 2025
Value US$86,050.04 | Price 36.00 | Shares 2,390
Proposed sale 14 Aug 2025
Value US$86,050.04 | Price 36.00 | Shares 2,390
Sale 4 Feb 2025
Value US$149,076.95 | Price 34.31 | Shares 4,345
Sale 4 Feb 2025
Value US$140,736.60 | Price 34.33 | Shares 4,100
Sale 4 Feb 2025
Value US$57,499.11 | Price 34.41 | Shares 1,671
Proposed sale 4 Feb 2025
Value US$347,313.06 | Price 34.33 | Shares 10,116
Sale 11 Sep 2024
Value US$302,120.00 | Price 46.48 | Shares 6,500
Proposed sale 11 Sep 2024
Value US$302,120.00 | Price 46.48 | Shares 6,500
Sale 11 Sep 2024
Value US$1,715,173.10 | Price 46.57 | Shares 36,830
Proposed sale 11 Sep 2024
Value US$1,715,158.11 | Price 46.57 | Shares 36,830
Sale 10 Sep 2024
Value US$89,700.00 | Price 46.00 | Shares 1,950
Proposed sale 10 Sep 2024
Value US$89,700.00 | Price 46.00 | Shares 1,950
Sale 10 Sep 2024
Value US$3,616,024.62 | Price 46.11 | Shares 78,420
Proposed sale 10 Sep 2024
Value US$3,528,900.00 | Price 45.00 | Shares 78,420
Sale 7 Aug 2024
Value US$1,165,350.00 | Price 233.07 | Shares 5,000
Sale 6 Aug 2024
Value US$4,081,733.94 | Price 227.72 | Shares 17,924
Proposed sale 6 Aug 2024
Value US$4,148,509.80 | Price 231.45 | Shares 17,924
Proposed sale 6 Aug 2024
Value US$1,165,316.77 | Price 233.06 | Shares 5,000
Proposed sale 5 Aug 2024
Value US$194,156.88 | Price 225.24 | Shares 862
Planned sale 13 Jun 2024
Value US$2,364,256.95 | Price 211.83 | Shares 11,161
Proposed sale 13 Jun 2024
Value US$2,306,085.82 | Price 206.62 | Shares 11,161
Proposed sale 22 Feb 2024
Value US$1,389,549.70 | Price 175.67 | Shares 7,910
Sale 22 Feb 2024
Value US$1,320,160.05 | Price 175.67 | Shares 7,515
Sale 14 Feb 2024
Value US$620,336.15 | Price 177.24 | Shares 3,500
Proposed sale 14 Feb 2024
Value US$620,336.22 | Price 177.24 | Shares 3,500
Sale 9 Feb 2024
Value US$984,981.04 | Price 176.52 | Shares 5,580
Proposed sale 9 Feb 2024
Value US$984,981.04 | Price 176.52 | Shares 5,580
Planned sale 5 Feb 2024
Value US$1,176,182.01 | Price 165.01 | Shares 7,128
Proposed sale 5 Feb 2024
Value US$1,163,646.00 | Price 163.25 | Shares 7,128
Sale 5 Feb 2024
Value US$1,386,000.00 | Price 165.00 | Shares 8,400
Proposed sale 5 Feb 2024
Value US$1,386,000.00 | Price 165.00 | Shares 8,400
Sale 4 Dec 2023
Value US$244,064.92 | Price 165.58 | Shares 1,474
Proposed sale 4 Dec 2023
Value US$244,064.92 | Price 165.58 | Shares 1,474
Sale 1 Dec 2023
Value US$362,589.84 | Price 162.74 | Shares 2,228
Proposed sale 1 Dec 2023
Value US$362,589.84 | Price 162.74 | Shares 2,228
Sale 28 Nov 2023
Value US$3,553,308.00 | Price 161.51 | Shares 22,000
Proposed sale 28 Nov 2023
Value US$3,553,303.51 | Price 161.51 | Shares 22,000
Sale 27 Nov 2023
Value US$149,053.31 | Price 164.52 | Shares 906
Proposed sale 27 Nov 2023
Value US$149,053.32 | Price 164.52 | Shares 906
Sale 27 Nov 2023
Value US$601,586.40 | Price 163.92 | Shares 3,670
Proposed sale 27 Nov 2023
Value US$601,586.40 | Price 163.92 | Shares 3,670
Proposed sale 22 Nov 2023
Value US$173,482.89 | Price 165.22 | Shares 1,050
Sale 22 Nov 2023
Value US$173,482.89 | Price 165.22 | Shares 1,050
Sale 21 Nov 2023
Value US$228,964.56 | Price 164.13 | Shares 1,395
Sale 20 Nov 2023
Value US$92,514.50 | Price 165.50 | Shares 559
Proposed sale 20 Nov 2023
Value US$92,514.50 | Price 165.50 | Shares 559
Sale 20 Nov 2023
Value US$581,642.10 | Price 165.71 | Shares 3,510
Sale 20 Nov 2023
Value US$157,725.65 | Price 166.03 | Shares 950
Proposed sale 20 Nov 2023
Value US$739,369.15 | Price 165.78 | Shares 4,460
Proposed sale 8 Aug 2023
Value US$232,965.00 | Price 167.00 | Shares 1,395
Sale 13 Jun 2023
Value US$390,525.00 | Price 156.21 | Shares 2,500
Proposed sale 13 Jun 2023
Value US$390,525.00 | Price 156.21 | Shares 2,500
Sale 7 Jun 2023
Value US$350,536.94 | Price 156.91 | Shares 2,234
Proposed sale 7 Jun 2023
Value US$350,532.38 | Price 156.91 | Shares 2,234
Sale 2 Jun 2023
Value US$761,564.50 | Price 152.31 | Shares 5,000
Proposed sale 2 Jun 2023
Value US$761,564.66 | Price 152.31 | Shares 5,000
Sale 16 Feb 2023
Value US$131,167.08 | Price 145.74 | Shares 900
Sale 8 Feb 2023
Value US$271,962.00 | Price 151.09 | Shares 1,800
Planned sale 6 Feb 2023
Value US$1,589,613.54 | Price 151.18 | Shares 10,515
Sale 15 Dec 2022
Value US$4,608,786.00 | Price 153.63 | Shares 30,000
Sale 14 Dec 2022
Value US$748,646.60 | Price 157.68 | Shares 4,748
Sale 14 Dec 2022
Value US$1,559,419.38 | Price 157.50 | Shares 9,901
Sale 6 Dec 2022
Value US$108,224.55 | Price 154.61 | Shares 700
Sale 23 Nov 2022
Value US$632,360.28 | Price 153.67 | Shares 4,115
Sale 22 Nov 2022
Value US$23,930.06 | Price 155.39 | Shares 154
Sale 22 Nov 2022
Value US$285,650.04 | Price 154.74 | Shares 1,846
Sale 21 Nov 2022
Value US$569,592.32 | Price 157.52 | Shares 3,616
Sale 14 Nov 2022
Value US$556,444.35 | Price 158.98 | Shares 3,500
Sale 25 Aug 2022
Value US$2,209,546.92 | Price 143.57 | Shares 15,390
Sale 25 Aug 2022
Value US$203,299.44 | Price 144.18 | Shares 1,410
Sale 19 Aug 2022
Value US$173,593.68 | Price 144.66 | Shares 1,200
Sale 1 Jun 2022
Value US$74,476.93 | Price 135.41 | Shares 550
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-15 2026-05-15 B Purchase
Feeler Jeffrey R
Non-Executive Director
11,805 +46.6%
74.83
US$2,608,803 		11,805 +46.6% 74.83 US$2,608,803
2026-02-06 2026-02-04 S Sale
3.5
CARTER BRIAN N

SVP, Corporate Controller

Officer
72,544 +29.0%
422.81
US$2,559,599 		72,544 +29.0% 422.81 US$2,559,599
2026-02-04 2026-02-04 PrS Proposed sale
3.5
BRIAN CARTER

Officer

Officer
70,824
267.65
US$2,850,127 		70,824 267.65 US$2,850,127
2025-08-15 2025-08-14 S Sale
2.2
Birkenbeuel Gary
Non-Executive Director
2,390 -6.0%
36.00
US$86,050 		2,390 -6.0% 36.00 US$86,050
2025-08-14 2025-08-14 PrS Proposed sale
2.2
GARY R BIRKENBEUEL

Director

Non-Executive Director
2,390
36.00
US$86,050 		2,390 36.00 US$86,050
2025-02-06 2025-02-04 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
4,345 -6.7%
34.31
US$149,077 		4,345 -6.7% 34.31 US$149,077
2025-02-06 2025-02-04 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
4,100 -6.0%
34.33
US$140,737 		4,100 -6.0% 34.33 US$140,737
2025-02-06 2025-02-04 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
1,671 -2.4%
34.41
US$57,499 		1,671 -2.4% 34.41 US$57,499
2025-02-04 2025-02-04 PrS Proposed sale
2.7
Volpi Kirsten M

Director

Non-Executive Director
10,116
34.33
US$347,313 		10,116 34.33 US$347,313
2024-09-12 2024-09-11 S Sale
2.6
Ritrievi Kimberly E
Non-Executive Director
6,500 -4.3%
46.48
US$302,120 		6,500 -4.3% 46.48 US$302,120
2024-09-12 2024-09-11 S Sale
3.5
BURDICK STEVEN M

EVP, CFO

Officer
36,830 -24.6%
46.57
US$1,715,173 		36,830 -24.6% 46.57 US$1,715,173
2024-09-11 2024-09-11 PrS Proposed sale
2.6
Ritrievi Kimberly E

Director

Non-Executive Director
6,500
46.48
US$302,120 		6,500 46.48 US$302,120
2024-09-11 2024-09-11 PrS Proposed sale
3.5
BURDICK STEVEN M

Officer

Officer
36,830
46.57
US$1,715,158 		36,830 46.57 US$1,715,158
2024-09-12 2024-09-10 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
1,950 -3.0%
46.00
US$89,700 		1,950 -3.0% 46.00 US$89,700
2024-09-12 2024-09-10 S Sale
2.3
SHOEMAKER LESLIE L

EVP, Chief Sustainability

Officer
78,420 -20.9%
46.11
US$3,616,025 		78,420 -20.9% 46.11 US$3,616,025
2024-09-10 2024-09-10 PrS Proposed sale
2.7
Volpi Kirsten M

Director

Non-Executive Director
1,950
46.00
US$89,700 		1,950 46.00 US$89,700
2024-09-10 2024-09-10 PrS Proposed sale
2.3
SHOEMAKER LESLIE L

Officer

Officer
78,420
45.00
US$3,528,900 		78,420 45.00 US$3,528,900
2024-08-08 2024-08-07 S Sale
2.9
Hopson Preston III

SVP, General Counsel

Officer
5,000 -36.4%
233.07
US$1,165,350 		5,000 -36.4% 233.07 US$1,165,350
2024-08-08 2024-08-06 S Sale
3.3
BATRACK DAN L

CHAIRMAN AND CEO

Executive Director
17,924 -41.9%
227.72
US$4,081,734 		17,924 -41.9% 227.72 US$4,081,734
2024-08-07 2024-08-06 PrS Proposed sale
2.9
Hopson Preston III

Director

Non-Executive Director
5,000
233.06
US$1,165,317 		5,000 233.06 US$1,165,317
2024-08-06 2024-08-06 PrS Proposed sale
3.3
BATRACK DAN L

Officer

Officer
17,924
231.45
US$4,148,510 		17,924 231.45 US$4,148,510
2024-08-05 2024-08-05 PrS Proposed sale
2.3
Maguire Joanne M

Director

Non-Executive Director
862
225.24
US$194,157 		862 225.24 US$194,157
2024-06-14 2024-06-13 PlS Planned sale
2.3
SHOEMAKER LESLIE L

EVP, Chief Sustainability

Officer
11,161 -13.0%
211.83
US$2,364,257 		11,161 -13.0% 211.83 US$2,364,257
2024-06-13 2024-06-13 PrS Proposed sale
2.3
SHOEMAKER LESLIE L

Officer

Officer
11,161
206.62
US$2,306,086 		11,161 206.62 US$2,306,086
2024-02-22 2024-02-22 PrS Proposed sale
3.5
BURDICK STEVEN M

Officer

Officer
7,910
175.67
US$1,389,550 		7,910 175.67 US$1,389,550
2024-02-22 2024-02-22 S Sale
3.5
BURDICK STEVEN M

EVP, CFO

Officer
7,515 -20.1%
175.67
US$1,320,160 		7,515 -20.1% 175.67 US$1,320,160
2024-02-16 2024-02-14 S Sale
3.2
THOMPSON J KENNETH
Non-Executive Director
3,500 -24.2%
177.24
US$620,336 		3,500 -24.2% 177.24 US$620,336
2024-02-14 2024-02-14 PrS Proposed sale
3.2
THOMPSON J KENNETH

Director

Non-Executive Director
3,500
177.24
US$620,336 		3,500 177.24 US$620,336
2024-02-13 2024-02-09 S Sale
3.5
CARTER BRIAN N

SVP, Corporate Controller

Officer
5,580 -40.0%
176.52
US$984,981 		5,580 -40.0% 176.52 US$984,981
2024-02-09 2024-02-09 PrS Proposed sale
3.5
CARTER BRIAN N

Officer

Officer
5,580
176.52
US$984,981 		5,580 176.52 US$984,981
2024-02-07 2024-02-05 PlS Planned sale
3.5
BURDICK STEVEN M

EVP, CFO

Officer
7,128 -16.0%
165.01
US$1,176,182 		7,128 -16.0% 165.01 US$1,176,182
2024-02-07 2024-02-05 S Sale
3.2
THOMPSON J KENNETH
Non-Executive Director
8,400 -36.7%
165.00
US$1,386,000 		8,400 -36.7% 165.00 US$1,386,000
2024-02-05 2024-02-05 PrS Proposed sale
3.5
BURDICK STEVEN M

Officer

Officer
7,128
163.25
US$1,163,646 		7,128 163.25 US$1,163,646
2024-02-05 2024-02-05 PrS Proposed sale
3.2
THOMPSON J KENNETH

Director

Non-Executive Director
8,400
165.00
US$1,386,000 		8,400 165.00 US$1,386,000
2023-12-05 2023-12-04 S Sale
3.5
CARTER BRIAN N

SVP, Corporate Controller

Officer
1,474 -15.0%
165.58
US$244,065 		1,474 -15.0% 165.58 US$244,065
2023-12-04 2023-12-04 PrS Proposed sale
3.5
CARTER BRIAN N

Officer

Officer
1,474
165.58
US$244,065 		1,474 165.58 US$244,065
2023-12-05 2023-12-01 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
2,228 -14.6%
162.74
US$362,590 		2,228 -14.6% 162.74 US$362,590
2023-12-01 2023-12-01 PrS Proposed sale
2.7
Volpi Kirsten M

Director

Non-Executive Director
2,228
162.74
US$362,590 		2,228 162.74 US$362,590
2023-11-29 2023-11-28 S Sale
3.3
BATRACK DAN L

CHAIRMAN AND CEO

Executive Director
22,000 -31.2%
161.51
US$3,553,308 		22,000 -31.2% 161.51 US$3,553,308
2023-11-28 2023-11-28 PrS Proposed sale
3.3
BATRACK DAN L

Officer

Officer
22,000
161.51
US$3,553,304 		22,000 161.51 US$3,553,304
2023-11-28 2023-11-27 S Sale
2.7
Hudkins Jill

President

Officer
906 -26.4%
164.52
US$149,053 		906 -26.4% 164.52 US$149,053
2023-11-28 2023-11-27 S Sale
3.2
Argus Roger R

President, GS and C/I Groups

Officer
3,670 -63.4%
163.92
US$601,586 		3,670 -63.4% 163.92 US$601,586
2023-11-27 2023-11-27 PrS Proposed sale
3.2
Argus Roger R

Director

Non-Executive Director
3,670
163.92
US$601,586 		3,670 163.92 US$601,586
2023-11-27 2023-11-27 PrS Proposed sale
2.7
Hudkins Jill

Officer

Officer
906
164.52
US$149,053 		906 164.52 US$149,053
2023-11-22 2023-11-22 PrS Proposed sale
2.9
Hopson Preston III

Officer

Officer
1,050
165.22
US$173,483 		1,050 165.22 US$173,483
2023-11-22 2023-11-22 S Sale
2.9
Hopson Preston III

SVP, General Counsel

Officer
1,050 -7.1%
165.22
US$173,483 		1,050 -7.1% 165.22 US$173,483
2023-11-22 2023-11-21 S Sale
2.9
Hopson Preston III

SVP, General Counsel

Officer
1,395 -8.6%
164.13
US$228,965 		1,395 -8.6% 164.13 US$228,965
2023-11-21 2023-11-20 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
559 -4.6%
165.50
US$92,514 		559 -4.6% 165.50 US$92,514
2023-11-21 2023-11-20 S Sale
3.2
THOMPSON J KENNETH
Non-Executive Director
3,510 -20.8%
165.71
US$581,642 		3,510 -20.8% 165.71 US$581,642
2023-11-21 2023-11-20 S Sale
3.2
THOMPSON J KENNETH
Non-Executive Director
950 -5.3%
166.03
US$157,726 		950 -5.3% 166.03 US$157,726
2023-11-20 2023-11-20 PrS Proposed sale
2.7
Volpi Kirsten M

Director

Non-Executive Director
559
165.50
US$92,514 		559 165.50 US$92,514
2023-11-20 2023-11-20 PrS Proposed sale
3.2
THOMPSON J KENNETH

Director

Non-Executive Director
4,460
165.78
US$739,369 		4,460 165.78 US$739,369
2023-08-08 2023-08-08 PrS Proposed sale
2.8
Amidon Derek G

Officer

Officer
1,395
167.00
US$232,965 		1,395 167.00 US$232,965
2023-06-14 2023-06-13 S Sale
3.2
THOMPSON J KENNETH
Non-Executive Director
2,500 -12.3%
156.21
US$390,525 		2,500 -12.3% 156.21 US$390,525
2023-06-13 2023-06-13 PrS Proposed sale
3.2
THOMPSON J KENNETH

Director

Non-Executive Director
2,500
156.21
US$390,525 		2,500 156.21 US$390,525
2023-06-08 2023-06-07 S Sale
3.5
CARTER BRIAN N

SVP, Corporate Controller

Officer
2,234 -22.2%
156.91
US$350,537 		2,234 -22.2% 156.91 US$350,537
2023-06-07 2023-06-07 PrS Proposed sale
3.5
CARTER BRIAN N

Officer

Officer
2,234
156.91
US$350,532 		2,234 156.91 US$350,532
2023-06-05 2023-06-02 S Sale
3.2
THOMPSON J KENNETH
Non-Executive Director
5,000 -19.7%
152.31
US$761,564 		5,000 -19.7% 152.31 US$761,564
2023-06-02 2023-06-02 PrS Proposed sale
3.2
THOMPSON J KENNETH

Director

Non-Executive Director
5,000
152.31
US$761,565 		5,000 152.31 US$761,565
2023-02-21 2023-02-16 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
900 -7.2%
145.74
US$131,167 		900 -7.2% 145.74 US$131,167
2023-02-10 2023-02-08 S Sale
2.6
Ritrievi Kimberly E
Non-Executive Director
1,800 -5.7%
151.09
US$271,962 		1,800 -5.7% 151.09 US$271,962
2023-02-08 2023-02-06 PlS Planned sale
3.5
BURDICK STEVEN M

EVP, CFO

Officer
10,515 -20.9%
151.18
US$1,589,614 		10,515 -20.9% 151.18 US$1,589,614
2022-12-16 2022-12-15 S Sale
3.3
BATRACK DAN L

CHAIRMAN AND CEO

Executive Director
30,000 -38.2%
153.63
US$4,608,786 		30,000 -38.2% 153.63 US$4,608,786
2022-12-16 2022-12-14 S Sale
3.2
LEWIS J CHRISTOPHER
Non-Executive Director
4,748 -7.6%
157.68
US$748,647 		4,748 -7.6% 157.68 US$748,647
2022-12-16 2022-12-14 S Sale
3.2
LEWIS J CHRISTOPHER
Non-Executive Director
9,901 -13.7%
157.50
US$1,559,419 		9,901 -13.7% 157.50 US$1,559,419
2022-12-08 2022-12-06 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
700 -5.3%
154.61
US$108,225 		700 -5.3% 154.61 US$108,225
2022-11-28 2022-11-23 S Sale
3.2
Argus Roger R

SVP, Government Services Group

Officer
4,115 -66.4%
153.67
US$632,360 		4,115 -66.4% 153.67 US$632,360
2022-11-22 2022-11-22 S Sale
2.7
Hudkins Jill

President

Officer
154 -5.0%
155.39
US$23,930 		154 -5.0% 155.39 US$23,930
2022-11-22 2022-11-22 S Sale
2.7
Hudkins Jill

President

Officer
1,846 -37.5%
154.74
US$285,650 		1,846 -37.5% 154.74 US$285,650
2022-11-22 2022-11-21 S Sale
2.9
Hopson Preston III

SVP, General Counsel

Officer
3,616 -25.8%
157.52
US$569,592 		3,616 -25.8% 157.52 US$569,592
2022-11-16 2022-11-14 S Sale
3.2
THOMPSON J KENNETH
Non-Executive Director
3,500 -13.1%
158.98
US$556,444 		3,500 -13.1% 158.98 US$556,444
2022-08-29 2022-08-25 S Sale
3.2
LEWIS J CHRISTOPHER
Non-Executive Director
15,390 -17.9%
143.57
US$2,209,547 		15,390 -17.9% 143.57 US$2,209,547
2022-08-29 2022-08-25 S Sale
3.2
LEWIS J CHRISTOPHER
Non-Executive Director
1,410 -1.6%
144.18
US$203,299 		1,410 -1.6% 144.18 US$203,299
2022-08-23 2022-08-19 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
1,200 -9.6%
144.66
US$173,594 		1,200 -9.6% 144.66 US$173,594
2022-06-03 2022-06-01 S Sale
2.7
Volpi Kirsten M
Non-Executive Director
550 -4.2%
135.41
US$74,477 		550 -4.2% 135.41 US$74,477
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