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TETRA TECH INC

TTEK Net selling
CIK 0000831641 #973 in the set updated 20 Sep 2026
Bought (120 mo)
$50.18K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$218.37M
$0.00 on a plan · $139.88M straight out of an exercise
Sold at will
$78.49M
98 of 257 sales
Net
−$218.32M
−$78.44M against sales at will

By person

32 insiders · 277 transactions
7.0×

Mr. Batrack holds 7.0 times base salary in stock. $8.78M of shares against $1.25M in salary for 2025.

Salary from the company's own proxy. The shares are what Mr. Batrack last reported holding, valued at $26.41, the price COMMON STOCK was last bought or sold at on the open market here, on 15 May 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
BATRACK DAN L
Chairman and CEO
—
$92.35M (32) scheduled
−$92.35M
332,498
0.1299%
$8.78M
+11.2%
BURDICK STEVEN M
EVP, CFO
—
$23.75M (15) scheduled
−$23.75M
138,251
0.0540%
$3.65M
−10.6%
SHOEMAKER LESLIE L
EVP, Chief Sustainability
—
$17.30M (11) scheduled
−$17.30M
325,821
0.1273%
$8.60M
−5.8%
LEMMON RICHARD A
SVP, Corporate Administration
—
$10.04M (19) scheduled
−$10.04M
35,775
0.0140%
$944.82K
+30.5%
LEWIS J CHRISTOPHER
Director
—
$9.23M (18)
−$9.23M
57,875
0.0226%
$1.53M
+10.2%
THOMPSON J KENNETH
Director
—
$8.72M (17) scheduled
−$8.72M
10,985
0.0043%
$290.11K
−6.7%
CARTER BRIAN N
SVP, Corporate Controller
—
$7.79M (15) scheduled
−$7.79M
46,496
0.0182%
$1.23M
+9.2%
HADEN PATRICK C
Director
—
$6.97M (14) scheduled
−$6.97M
3,062
0.0012%
$80.87K
−69.5%
BROWNLIE WILLIAM R
SVP, Chief Engineer
—
$6.70M (7) scheduled
−$6.70M
85,376
0.0333%
$2.25M
+23.4%
CHRISTENSEN CRAIG L
SVP, CIO
—
$5.34M (16) scheduled
−$5.34M
36,407
0.0142%
$961.51K
+46.5%
CHU RONALD J
EXECUTIVE VICE PRESIDENT
—
$4.38M (5) scheduled
−$4.38M
37,104
0.0145%
$979.92K
−62.9%
Volpi Kirsten M
Director
—
$3.93M (21)
−$3.93M
74,218
0.0290%
$1.96M
+29.6%
Argus Roger R
President and CEO
—
$3.42M (14)
−$3.42M
39,890
0.0156%
$1.05M
+142.6%
SMITH ALBERT E
Director
—
$3.10M (8) scheduled
−$3.10M
47,570
0.0186%
$1.26M
+37.8%
GRANT HUGH M
Director
—
$2.65M (5) scheduled
−$2.65M
24,913
0.0097%
$657.95K
+110.1%
Ritrievi Kimberly E
Director
—
$2.55M (6)
−$2.55M
192,259
0.0751%
$5.08M
+54.8%
Hopson Preston
EVP, Chief Legal/Human Capital
—
$2.14M (4)
−$2.14M
83,142
0.0325%
$2.20M
+130.3%
Amidon Derek G
SVP, Comm./Int'l Svcs. Group
—
$1.72M (5) scheduled
−$1.72M
11,141
0.0044%
$294.23K
−13.6%
MCDONALD KEVIN P
Former SVP, Human Resources
—
$1.59M (4) scheduled
−$1.59M
22,038
0.0086%
$582.02K
+52.7%
Rynning Mark A
SVP, R&S Infrastructure
—
$1.42M (9)
−$1.42M
1,164
0.0005%
$30.74K
−54.4%
SALIN JANIS B
SVP, GENERAL COUNSEL
—
$1.15M (2) scheduled
−$1.15M
25,046
0.0098%
$661.46K
+1.2%
O'Rourke Brendan M.
SVP, Enterprise Risk Mgmt.
—
$852.61K (2)
−$852.61K
1,344
0.0005%
$35.50K
+166.1%
Hudkins Jill
President
—
$458.63K (3)
−$458.63K
2,828
0.0011%
$74.69K
−38.5%
TRULY RICHARD H
Director
—
$330.46K (1) scheduled
−$330.46K
13,220
0.0052%
$349.14K
+11.5%
Auman Jan K
SVP, Global Development Svcs.
—
$302.36K (2)
−$302.36K
6,926
0.0027%
$182.92K
−28.0%
Teufele Bernard
SVP, Canada and South America
—
$119.04K (1)
−$119.04K
12,867
0.0050%
$339.82K
+157.1%
Birkenbeuel Gary
Director
—
$86.05K (1)
−$86.05K
51,032
0.0199%
$1.35M
+59.0%
Feeler Jeffrey R
Director
$50.18K (1)
—
+$50.18K
1,900
0.0007%
$50.18K
—
Maguire Joanne M
Director
—
—
—
97,785
0.0382%
$2.58M
+27.8%
Gandhi Prashant
Director
—
—
—
16,553
0.0065%
$437.16K
+400.8%
Obiaya Christiana
Director
—
—
—
9,666
0.0038%
$255.28K
+617.1%
Douglas John M.
Director
—
—
—
610
0.0002%
$16.11K
—

Individual transactions

97
Insider
Date
Role
Action
Shares
Price
Amount
CARTER BRIAN N
4 Feb 2026
SVP, Corporate Controller
Sell
9,979
$40.23
$401.41K
Birkenbeuel Gary
14 Aug 2025
Director
Sell
2,390
$36.00
$86.05K
Volpi Kirsten M
4 Feb 2025
Director
Sell
4,345
$34.31
$149.08K
Volpi Kirsten M
4 Feb 2025
Director
Sell
4,100
$34.33
$140.74K
Volpi Kirsten M
4 Feb 2025
Director
Sell
1,671
$34.41
$57.50K
Ritrievi Kimberly E
11 Sep 2024
Director
Sell
6,500
$46.48
$302.12K
BURDICK STEVEN M
11 Sep 2024
EVP, CFO
Sell
36,830
$46.57
$1.72M
Volpi Kirsten M
10 Sep 2024
Director
Sell
1,950
$46.00
$89.70K
SHOEMAKER LESLIE L
10 Sep 2024
EVP, Chief Sustainability
Sell
78,420
$46.11
$3.62M
Hopson Preston
7 Aug 2024
SVP, General Counsel
Sell
5,000
$233.07
$1.17M
BATRACK DAN L
6 Aug 2024
CHAIRMAN AND CEO
Sell
17,924
$227.72
$4.08M
BURDICK STEVEN M
22 Feb 2024
EVP, CFO
Sell
7,515
$175.67
$1.32M
THOMPSON J KENNETH
14 Feb 2024
Director
Sell
3,500
$177.24
$620.34K
BURDICK STEVEN M
5 Feb 2024
EVP, CFO
Sell
7,128
$165.01
$1.18M
CARTER BRIAN N
4 Dec 2023
SVP, Corporate Controller
Sell
1,474
$165.58
$244.06K
Volpi Kirsten M
1 Dec 2023
Director
Sell
2,228
$162.74
$362.59K
BATRACK DAN L
28 Nov 2023
CHAIRMAN AND CEO
Sell
22,000
$161.51
$3.55M
Argus Roger R
27 Nov 2023
President, GS and C/I Groups
Sell
3,670
$163.92
$601.59K
Hudkins Jill
27 Nov 2023
President
Sell
906
$164.52
$149.05K
Hopson Preston
22 Nov 2023
SVP, General Counsel
Sell
1,050
$165.22
$173.48K
Hopson Preston
21 Nov 2023
SVP, General Counsel
Sell
1,395
$164.13
$228.96K
THOMPSON J KENNETH
20 Nov 2023
Director
Sell
3,510
$165.71
$581.64K
THOMPSON J KENNETH
20 Nov 2023
Director
Sell
950
$166.03
$157.73K
Volpi Kirsten M
20 Nov 2023
Director
Sell
559
$165.50
$92.51K
THOMPSON J KENNETH
13 Jun 2023
Director
Sell
2,500
$156.21
$390.53K
CARTER BRIAN N
7 Jun 2023
SVP, Corporate Controller
Sell
2,234
$156.91
$350.54K
THOMPSON J KENNETH
2 Jun 2023
Director
Sell
5,000
$152.31
$761.56K
Volpi Kirsten M
16 Feb 2023
Director
Sell
900
$145.74
$131.17K
Ritrievi Kimberly E
8 Feb 2023
Director
Sell
1,800
$151.09
$271.96K
BURDICK STEVEN M
6 Feb 2023
EVP, CFO
Sell
10,515
$151.18
$1.59M
BATRACK DAN L
15 Dec 2022
CHAIRMAN AND CEO
Sell
30,000
$153.63
$4.61M
LEWIS J CHRISTOPHER
14 Dec 2022
Director
Sell
4,748
$157.68
$748.65K
LEWIS J CHRISTOPHER
14 Dec 2022
Director
Sell
9,901
$157.50
$1.56M
Volpi Kirsten M
6 Dec 2022
Director
Sell
700
$154.61
$108.22K
Argus Roger R
23 Nov 2022
SVP, Government Services Group
Sell
4,115
$153.67
$632.36K
Hudkins Jill
22 Nov 2022
President
Sell
154
$155.39
$23.93K
Hudkins Jill
22 Nov 2022
President
Sell
1,846
$154.74
$285.65K
Hopson Preston
21 Nov 2022
SVP, General Counsel
Sell
3,616
$157.52
$569.59K
THOMPSON J KENNETH
14 Nov 2022
Director
Sell
3,500
$158.98
$556.44K
Volpi Kirsten M
19 Aug 2022
Director
Sell
1,200
$144.66
$173.59K
Volpi Kirsten M
1 Jun 2022
Director
Sell
550
$135.41
$74.48K
HADEN PATRICK C
17 Mar 2022
Director
Sell
318
$164.55
$52.33K
Volpi Kirsten M
8 Mar 2022
Director
Sell
900
$156.34
$140.70K
BURDICK STEVEN M
8 Dec 2021
EVP, CFO
Sell
16,132
$188.73
$3.04M
O'Rourke Brendan M.
8 Dec 2021
SVP, Enterprise Risk Mgmt.
Sell
3,633
$190.00
$690.27K
Volpi Kirsten M
7 Dec 2021
Director
Sell
700
$189.62
$132.73K
BATRACK DAN L
6 Dec 2021
CHAIRMAN AND CEO
Sell
64,000
$185.75
$11.89M
CARTER BRIAN N
29 Nov 2021
SVP, Corporate Controller
Sell
3,015
$189.44
$571.16K
HADEN PATRICK C
24 Nov 2021
Director
Sell
110
$189.85
$20.88K
HADEN PATRICK C
24 Nov 2021
Director
Sell
2,200
$188.94
$415.67K
HADEN PATRICK C
23 Nov 2021
Director
Sell
410
$186.03
$76.27K
HADEN PATRICK C
7 Sep 2021
Director
Sell
5,400
$147.88
$798.57K
LEMMON RICHARD A
2 Sep 2021
SVP, Corporate Administration
Sell
3,878
$146.00
$566.19K
Teufele Bernard
11 Aug 2021
SVP, Canada and South America
Sell
860
$138.42
$119.04K
Volpi Kirsten M
7 Jun 2021
Director
Sell
5,575
$119.15
$664.26K
Ritrievi Kimberly E
2 Jun 2021
Director
Sell
8,524
$119.05
$1.01M
SHOEMAKER LESLIE L
20 May 2021
President
Sell
9,752
$118.83
$1.16M
SHOEMAKER LESLIE L
20 May 2021
President
Sell
3,705
$118.78
$440.07K
O'Rourke Brendan M.
9 Feb 2021
SVP, Enterprise Risk Mgmt.
Sell
1,200
$135.29
$162.34K
Rynning Mark A
8 Feb 2021
SVP, R&S Infrastructure
Sell
3,273
$136.04
$445.26K
BURDICK STEVEN M
3 Feb 2021
EVP, CFO
Sell
10,801
$129.45
$1.40M
Volpi Kirsten M
8 Dec 2020
Director
Sell
6,468
$120.16
$777.20K
BATRACK DAN L
7 Dec 2020
CHAIRMAN AND CEO
Sell
8,798
$119.73
$1.05M
BATRACK DAN L
4 Dec 2020
CHAIRMAN AND CEO
Sell
41,202
$121.83
$5.02M
LEWIS J CHRISTOPHER
30 Nov 2020
Director
Sell
3,780
$119.89
$453.18K
LEWIS J CHRISTOPHER
30 Nov 2020
Director
Sell
4,739
$119.62
$566.87K
THOMPSON J KENNETH
30 Nov 2020
Director
Sell
2,500
$120.89
$302.23K
LEWIS J CHRISTOPHER
25 Nov 2020
Director
Sell
4,182
$122.75
$513.35K
LEWIS J CHRISTOPHER
25 Nov 2020
Director
Sell
3,830
$122.60
$469.54K
HADEN PATRICK C
24 Nov 2020
Director
Sell
4,182
$123.29
$515.60K
CARTER BRIAN N
23 Nov 2020
SVP, Corporate Controller
Sell
3,165
$122.11
$386.46K
Rynning Mark A
23 Nov 2020
SVP, R&S Infrastructure
Sell
3,089
$123.34
$380.99K
Argus Roger R
19 Nov 2020
SVP, Government Services Group
Sell
4,164
$120.98
$503.77K
Volpi Kirsten M
26 Aug 2020
Director
Sell
800
$93.44
$74.75K
BATRACK DAN L
21 Aug 2020
CHAIRMAN AND CEO
Sell
230
$93.17
$21.43K
BATRACK DAN L
21 Aug 2020
CHAIRMAN AND CEO
Sell
69,040
$93.16
$6.43M
Rynning Mark A
4 Feb 2020
SVP, U.S. Infrastructure
Sell
122
$89.33
$10.90K
CARTER BRIAN N
10 Dec 2019
SVP, Corporate Controller
Sell
3,099
$86.00
$266.51K
Volpi Kirsten M
10 Dec 2019
Director
Sell
425
$85.99
$36.54K
Argus Roger R
21 Nov 2019
SVP, Government Services Group
Sell
408
$85.77
$34.99K
Auman Jan K
13 Sep 2019
SVP, Global Development Svcs.
Sell
1,981
$84.00
$166.40K
LEWIS J CHRISTOPHER
11 Sep 2019
Director
Sell
4,489
$82.12
$368.65K
Rynning Mark A
16 May 2019
SVP, U.S. Infrastructure
Sell
871
$67.37
$58.68K
CHRISTENSEN CRAIG L
1 May 2019
SVP, CIO
Sell
624
$65.00
$40.56K
Amidon Derek G
15 Mar 2019
SVP, Commercial Account Mgmt.
Sell
4,196
$58.95
$247.36K
Amidon Derek G
15 Mar 2019
SVP, Commercial Account Mgmt.
Sell
422
$58.97
$24.89K
HADEN PATRICK C
19 Feb 2019
Director
Sell
3,780
$58.46
$220.98K
CHRISTENSEN CRAIG L
13 Feb 2019
SVP, CIO
Sell
625
$57.50
$35.94K
CARTER BRIAN N
26 Nov 2018
SVP, Corporate Controller
Sell
8,215
$62.28
$511.62K
Volpi Kirsten M
14 Nov 2018
Director
Sell
1,200
$66.94
$80.32K
Auman Jan K
8 Aug 2018
SVP
Sell
1,979
$68.70
$135.96K
HADEN PATRICK C
23 Feb 2018
Director
Sell
4,401
$50.16
$220.76K
Rynning Mark A
23 Feb 2018
SVP
Sell
660
$50.44
$33.29K
LEWIS J CHRISTOPHER
29 Nov 2017
Director
Sell
4,401
$49.96
$219.87K
SALIN JANIS B
29 Nov 2017
SVP, GENERAL COUNSEL
Sell
7,420
$50.04
$371.28K
Argus Roger R
24 Nov 2017
SVP, Gov't Svcs. Group
Sell
390
$49.65
$19.36K
Argus Roger R
22 Nov 2017
SVP, Gov't Svcs. Group
Sell
1,138
$49.63
$56.47K
Showing 250 of 277 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 615
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 159
Sales at will 98
Transactions with no price 0
Shares from compensation/vesting 5,240,153
Sales filed before the plan box existed 71
History held since 23 Sep 2016