NASDAQ:TTEK

Tetra Tech Stock Insider Trading

Industrials > Engineering & Construction

Buy TTEK

*Your capital is at risk

$27.80

+0.670 (+2.47%)

At Close: Jun 03, 2026

Tetra Tech Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 42.31. In total, the insiders bought 716.75K and sold 185.82K TTEK shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	42.31
● Buy	716.75K shares
● Sell	185.82K shares
87% Buy Activity Strong Negative Correlation
Buy Signal Medium Confidence Nov 19, 2025 Analysis Breakdown: Supported by a positive Insider Power Score of 42.31. Confidence increased due to high data reliability score of 100. Supported by overwhelming buy-side pressure (87% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
May 15, 2026 Buy	COMMON STOCK P-Purchase	Feeler Jeffrey R Director	Director	1 900 Value: $50.2K
Apr 27, 2026 Buy	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) A-Award	Thornburg Eric W Director	Director	1 259 Value: $39.7K
Mar 30, 2026 Buy	Common Stock J-Other	Thornburg Eric W	Director	0 Value: $0
Mar 16, 2026 Buy	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) M-Exempt	Ritrievi Kimberly E Director	Director	1 718 Value: $54.0K
Mar 16, 2026 Buy	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) M-Exempt	Ritrievi Kimberly E Director	Director	1 925 Value: $60.5K
Mar 16, 2026 Buy	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) M-Exempt	Ritrievi Kimberly E Director	Director	2 250 Value: $70.7K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	4 500 Value: $141.4K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	2 250 Value: $70.7K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	1 925 Value: $60.5K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	2 910 Value: $91.4K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	2 050 Value: $64.4K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	795 Value: $25.0K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	795 Value: $25.0K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	1 900 Value: $59.7K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	2 125 Value: $66.8K
Mar 16, 2026 Buy	COMMON STOCK M-Exempt	Ritrievi Kimberly E Director	Director	1 718 Value: $54.0K
Mar 16, 2026 Buy	COMMON STOCK A-Award	Ritrievi Kimberly E Director	Director	25 883 Value: $813.2K
Feb 19, 2026 Buy	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) A-Award	Argus Roger R President And CEO	CEO / President	28 174 Value: $1.05M
Feb 19, 2026 Buy	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) M-Exempt	Obiaya Christiana Director	Director	495 Value: $18.4K
Feb 19, 2026 Buy	COMMON STOCK M-Exempt	Obiaya Christiana Director	Director	495 Value: $18.4K
Feb 10, 2026 Buy	STOCK OPTION (RIGHT TO BUY) M-Exempt	Volpi Kirsten M Director	Director	1 000 Value: $10K
Feb 10, 2026 Buy	COMMON STOCK M-Exempt	Volpi Kirsten M Director	Director	1 000 Value: $10K
Feb 06, 2026 Sell	COMMON STOCK G-Gift	Burdick Steven M EVP, CFO	C-Suite Officer	11 100 Value: $0
Feb 04, 2026 Sell	COMMON STOCK S-Sale	Carter Brian N SVP, Corporate Controller	Officer	9 979 Value: $401.4K
Jan 26, 2026 Buy	RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) A-Award	Hardwick M Susan Director	Director	1 754 Value: $64.3K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT TETRA TECH

Tetra Tech, Inc. provides consulting and engineering services worldwide. The company operates through two segments Government Services Group (GSG) and Commercial/International Services Group (CIG). The GSG segment offers early data collection and monitoring, data analysis and information management, science and engineering applied research, engineering design, project management, and operations and maintenance services; and climate change and ene...

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