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TETRA TECH INC (TTEK) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:TTEK - US88162G1031 - Common Stock

37.27 USD
+0.1 (+0.27%)
Last: 1/16/2026, 8:00:01 PM
38 USD
+0.73 (+1.96%)
After Hours: 1/16/2026, 8:00:01 PM
TTEK Ownership Chart.TTEK Ownership Chart: showing Insider, Institutional ownership and shares available to the public.TTEK Ownership.InsiderInstitutional



Shares Outstanding260.83M
Float259.26M
Float Short Interest Percentage3.18%
Owners (insider)0.46%
Owners (institutional)101.08%
Owners (insider) change7.69%
Owners (institutional) change-0.14%
TTEK Institutional Ownership HistoryTTEK Institutional Ownership HistoryTTEK Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M 150M 200M 250M
TTEK Historical Insider Transactions ChartTTEK Historical Insider Buy and Sell Transactions ChartTTEK Historical Insider Transactions Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 0 50K 100K
Date Name Type Shares Price Amount
Jan 12, 2026 Birkenbeuel Gary Option Excercise 1590 0.00 $ 0.00
Jan 12, 2026 Birkenbeuel Gary Grant 4397 0.00 $ 0.00
Jan 12, 2026 Ritrievi Kimberly E Grant 2208 0.00 $ 0.00
Nov 30, 2025 CARTER BRIAN N Option Excercise 1500 34.74 $ 52,110.00
Nov 30, 2025 SHOEMAKER LESLIE L Option Excercise 6717 0.00 $ 0.00
Nov 30, 2025 SHOEMAKER LESLIE L Option Excercise 3707 34.74 $ 128,781.18
Nov 30, 2025 BURDICK STEVEN M Option Excercise 7327 0.00 $ 0.00
Nov 30, 2025 BURDICK STEVEN M Option Excercise 4044 34.74 $ 140,488.56
Nov 30, 2025 Argus Roger R Option Excercise 5190 0.00 $ 0.00
Nov 30, 2025 Argus Roger R Option Excercise 2865 34.74 $ 99,530.10
Nov 30, 2025 BATRACK DAN L Option Excercise 40585 0.00 $ 0.00
Nov 30, 2025 BATRACK DAN L Option Excercise 22396 34.74 $ 778,037.04
Nov 30, 2025 Obiaya Christiana Option Excercise 1718 0.00 $ 0.00
Nov 30, 2025 Hopson Preston III Option Excercise 5190 0.00 $ 0.00
Nov 30, 2025 Hopson Preston III Option Excercise 2044 34.74 $ 71,008.56
Nov 30, 2025 Gandhi Prashant Option Excercise 1718 0.00 $ 0.00
Nov 30, 2025 CARTER BRIAN N Option Excercise 2748 0.00 $ 0.00
Nov 28, 2025 Volpi Kirsten M Option Excercise 2718 3.53 $ 9,590.00
Nov 18, 2025 BATRACK DAN L Option Excercise 33045 0.00 $ 0.00
Nov 18, 2025 BATRACK DAN L Option Excercise 108888 35.69 $ 3,886,212.72
Nov 18, 2025 BATRACK DAN L Grant 164285 0.00 $ 0.00
Nov 18, 2025 Argus Roger R Option Excercise 4590 0.00 $ 0.00
Nov 18, 2025 Argus Roger R Option Excercise 14619 35.69 $ 521,752.11
Nov 18, 2025 Argus Roger R Grant 21902 0.00 $ 0.00
Nov 18, 2025 Gandhi Prashant Grant 4104 0.00 $ 0.00
Aug 14, 2025 Birkenbeuel Gary Open Market Sale 2390 36.00 $ 86,050.04
Feb 27, 2025 Douglas John M. Option Excercise 718 27.91 $ 20,039.38
Feb 27, 2025 Douglas John M. Option Excercise 108 27.91 $ 3,014.28
Feb 5, 2025 Volpi Kirsten M Option Excercise 6000 9.59 $ 57,540.00
Feb 5, 2025 Volpi Kirsten M Other Disposition 3800 0.00 $ 0.00
Feb 4, 2025 Volpi Kirsten M Open Market Sale 10116 34.33 $ 347,312.66