TETRA TECH INC

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TTEK·88162G103·US·Common Stock·Industrials - Engineering & Construction-Activist

TTEK (TETRA TECH INC) is held by 228 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($828.4M), VANGUARD PORTFOLIO MANAGEMENT LLC ($360.2M), VANGUARD CAPITAL MANAGEMENT LLC ($338.8M). Net institutional sentiment: Mixed.

228

Holders

(18 Elite)

$6.4B

Total Value

50% (230)

Consensus

116 buying - 114 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)46

Insider (Form 4)28

Activist (13D/13G)46

Congressional (STOCK Act)77

Holder Quality

83

★★★★★

Elite

27

★★★★

Strong

11

★★★

Solid

49

★★

Below

60

★

Weak

Held by 228 funds

18 elite

Who's Trading

Source dates: Price Aug 25, 2026 · Insiders Aug 6, 2026 · Activists Apr 30, 2026 · Congress none

InsiderVMVolpi Kirsten MExercise 2K shAug 4, 2026

ActivistVAVanguard Capital Management5.2%Apr 30, 2026

ActivistThe Vanguard Group0.0%Mar 27, 2026

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Top Holders

Top Holders (228)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	28.7M(+7.0%)	$828.4M	0.0%	-3.38%	34
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Decreased	12.5M(-1.4%)	$360.2M	0.0%	+22.72%	0
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	11.7M(+0.1%)	$338.8M	0.0%	+22.73%	31
Capital International Investors	Increased	11.7M(+2.3%)	$336.6M	0.1%	+12.64%	32
STATE STREET CORP	Increased	9.8M(+1.3%)	$282M	0.0%	-9.40%	31
FMR LLC	Increased	8.8M(+2571.3%)	$253.3M	0.0%	+25.93%	50
GEODE CAPITAL MANAGEMENT, LLC	Increased	6.8M(+31.0%)	$197.4M	0.0%	-1.42%	39
FIL Ltd	Increased	5.5M(+13.2%)	$158.1M	0.1%	-6.79%	41
Amundi	Increased	5.1M(+7.3%)	$147.3M	0.0%	-1.66%	33
FULLER & THALER ASSET MANAGEMENT, INC.	Increased	4.9M(+48.5%)	$142.2M	0.4%	+24.27%	50
Pictet Asset Management Holding SA	Decreased	4.8M(-50.6%)	$137.5M	0.1%	-13.31%	0
WELLINGTON MANAGEMENT GROUP LLP	Decreased	4.7M(-2.7%)	$135M	0.0%	+14.57%	0
DIMENSIONAL FUND ADVISORS LP	Increased	4.4M(+17.3%)	$128.5M	0.0%	+2.42%	35
Neuberger Berman Group LLC	Decreased	4.4M(-39.4%)	$127.4M	0.1%	-8.78%	0
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Increased	4.4M(+708.5%)	$126.9M	0.1%	+23.42%	49
Invesco Ltd.	Increased	4.1M(+40.3%)	$118.9M	0.0%	+4.45%	40
AQR CAPITAL MANAGEMENT LLC	Increased	4.1M(+171.5%)	$117.1M	0.0%	+20.71%	49
Impax Asset Management Group plc	Increased	3.9M(+2.6%)	$113.6M	0.7%	+12.57%	43
LGT Group Foundation	Increased	3.7M(+18.4%)	$108.2M	1.2%	+7.47%	56
M&G Plc	Increased	2.8M(+19.8%)	$80.5M	0.4%	+13.99%	42

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer