Tetra Tech, Inc. TTEK

Set alert

40.29 USD -0.27 (-0.67%)

At closeNov 6, 2026, 4:00 PM EST

41.00 +0.71 +1.76%

After hours · Nov 6, 4:00 PM ET

38.64 Day range 40.50

25.81 52-week range 43.14

Held by insiders 0.49%

Held by institutions 103.48%

Float held by institutions 103.99%

Institutions 811

Top institutional holders
Holder	% held	Shares	Value	Reported
Blackrock Inc.	11.20%	28,675,276	1.16B	Jun 29, 2026
Vanguard Portfolio Management LLC	4.87%	12,467,970	502.33M	Jun 29, 2026
Vanguard Capital Management LLC	4.58%	11,725,738	472.43M	Jun 29, 2026
Capital International Investors	4.55%	11,651,238	469.43M	Jun 29, 2026
State Street Corporation	3.81%	9,761,640	393.30M	Jun 29, 2026
FMR, LLC	3.42%	8,768,611	353.29M	Jun 29, 2026

Top mutual fund holders
Holder	% held	Shares	Value	Reported
iShares Trust-iShares Core S&P Mid-Cap ETF	3.56%	9,120,366	367.46M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund	3.22%	8,249,188	332.36M	Jun 29, 2026
VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund	2.33%	5,954,009	239.89M	Jun 29, 2026
Capitol Series Trust-FullerThaler Behavioral Small-Cap Equity Fund	1.84%	4,701,700	189.43M	Jun 29, 2026
Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total	1.65%	4,221,735	170.09M	Sep 29, 2026
VANGUARD INDEX FUNDS-Vanguard Small-Cap Value Index Fund	1.47%	3,770,313	151.91M	Jun 29, 2026

TTEK insiders
Insider	Relation	Latest transaction	Date	Shares held
ARGUS ROGER R.	President	Conversion of Exercise of derivative security	Nov 27, 2025	39,890
BATRACK DAN L	Chief Executive Officer	Conversion of Exercise of derivative security	Nov 27, 2025	332,498
BIRKENBEUEL GARY R.	Director	Stock Award(Grant)	Jan 11, 2026	51,032
BURDICK STEVEN M	Chief Financial Officer	Stock Gift	Feb 5, 2026	138,251
CARTER BRIAN N	Officer	Sale	Feb 3, 2026	46,496
GANDHI PRASHANT	Director	Conversion of Exercise of derivative security	Nov 27, 2025	16,553

Held by funds