Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

TETRA TECH INC

TTEK · Nasdaq · CIK 0000831641 · Industrials · Engineering & Construction

INSIDER SIGNAL

43.1 / 100

1 buyers · 1 purchase transaction lines · $50.2K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleStrong
RecencyLow
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+7.0 / 35
Purchase size+5.3 / 25
Role+20.0 / 20
Recency+0.7 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ⚠ Purchase activity is becoming less recent
  • ✓ Role scores high · most senior buyer: Director

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Volpi Kirsten MDirector
○○
Feeler Jeffrey RDirector
●
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Feeler Jeffrey R · $50.2K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-15–2026-05-15

Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

43.1 / 100

Latest recorded score

→ +0.0 ptsversus the previous recorded snapshot
  1. 43.3
  2. 43.2
  3. 43.2
  4. 43.1
  5. 43.1

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

1Purchases
1Sales
73Other Form 4 lines
27SEC filings · 365 days
BUYING1 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER2 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-6.6%
3M
+7.0%
6M
+10.4%
12M
-4.3%

Volatility & liquidity

Volatility
34.5%
Beta
—
Avg daily value
USD 83.3M

Valuation

Market cap
USD 8.5B
P/E
34.4×

Fundamentals

Profit margin
4.6%
ROE
13.9%
Industry
Engineering & Construction

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, Profit margin, ROE · Fiscal year ended: 2025-09-28 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-07-20 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
11,876,810
Previous report
11,089,741
Avg daily volume
2,340,340
Days to cover
5.1

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-15Feeler Jeffrey RPurchase (P)COMMON STOCK1,900USD 26.41USD 50,179SEC filing ↗

Form 4 evidence

75 transaction lines in the latest 365-day window; 677 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-04Volpi Kirsten MOption exercise / conversion (M)COMMON STOCK2,300USD 9.59USD 22,057SEC filing ↗
2026-06-04Volpi Kirsten MOption exercise / conversion (M)COMMON STOCK1,700USD 9.59USD 16,303SEC filing ↗
2026-05-15Feeler Jeffrey RPurchase (P)COMMON STOCK1,900USD 26.41USD 50,179SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-04Volpi Kirsten MOption exercise / conversion (M)COMMON STOCK2,300USD 9.59USD 22,057SEC filing ↗
2026-06-04Volpi Kirsten MOption exercise / conversion (M)COMMON STOCK1,700USD 9.59USD 16,303SEC filing ↗
2026-05-15Feeler Jeffrey RPurchase (P)COMMON STOCK1,900USD 26.41USD 50,179SEC filing ↗
2026-03-16Ritrievi Kimberly EOption exercise / conversion (M)COMMON STOCK20,173USD 0.00USD 0SEC filing ↗
2026-03-16Ritrievi Kimberly EAward / grant (A)COMMON STOCK25,883USD 0.00USD 0SEC filing ↗
2026-02-19Obiaya ChristianaOption exercise / conversion (M)COMMON STOCK495USD 0.00USD 0SEC filing ↗
2026-02-10Volpi Kirsten MOption exercise / conversion (M)COMMON STOCK1,000USD 9.59USD 9,590SEC filing ↗
2026-02-06BURDICK STEVEN MGift (G)COMMON STOCK11,100USD 0.00USD 0SEC filing ↗
2026-02-04CARTER BRIAN NSale (S)COMMON STOCK9,979USD 40.23USD 401,455SEC filing ↗
2026-01-12Ritrievi Kimberly EAward / grant (A)COMMON STOCK2,208USD 0.00USD 0SEC filing ↗
2026-01-12Birkenbeuel GaryOption exercise / conversion (M)COMMON STOCK1,590USD 0.00USD 0SEC filing ↗
2026-01-12Birkenbeuel GaryAward / grant (A)COMMON STOCK4,397USD 0.00USD 0SEC filing ↗
2025-11-30Volpi Kirsten MOption exercise / conversion (M)COMMON STOCK1,718USD 0.00USD 0SEC filing ↗
2025-11-30SHOEMAKER LESLIE LOption exercise / conversion (M)COMMON STOCK6,717USD 0.00USD 0SEC filing ↗
2025-11-30SHOEMAKER LESLIE LTax withholding (F)COMMON STOCK3,707USD 34.74USD 128,781SEC filing ↗
2025-11-30Obiaya ChristianaOption exercise / conversion (M)COMMON STOCK1,718USD 0.00USD 0SEC filing ↗
2025-11-30Hopson PrestonOption exercise / conversion (M)COMMON STOCK5,190USD 0.00USD 0SEC filing ↗
2025-11-30Hopson PrestonTax withholding (F)COMMON STOCK2,044USD 34.74USD 71,009SEC filing ↗
2025-11-30Gandhi PrashantOption exercise / conversion (M)COMMON STOCK1,718USD 0.00USD 0SEC filing ↗
2025-11-30CARTER BRIAN NOption exercise / conversion (M)COMMON STOCK2,748USD 0.00USD 0SEC filing ↗
2025-11-30CARTER BRIAN NTax withholding (F)COMMON STOCK1,500USD 34.74USD 52,110SEC filing ↗
2025-11-30BURDICK STEVEN MOption exercise / conversion (M)COMMON STOCK7,327USD 0.00USD 0SEC filing ↗
2025-11-30BURDICK STEVEN MTax withholding (F)COMMON STOCK4,044USD 34.74USD 140,489SEC filing ↗
2025-11-30BATRACK DAN LOption exercise / conversion (M)COMMON STOCK40,585USD 0.00USD 0SEC filing ↗
2025-11-30BATRACK DAN LTax withholding (F)COMMON STOCK22,396USD 34.74USD 778,037SEC filing ↗
2025-11-30Argus Roger ROption exercise / conversion (M)COMMON STOCK5,190USD 0.00USD 0SEC filing ↗
2025-11-30Argus Roger RTax withholding (F)COMMON STOCK2,865USD 34.74USD 99,530SEC filing ↗
2025-11-28Volpi Kirsten MOption exercise / conversion (M)COMMON STOCK1,000USD 9.59USD 9,590SEC filing ↗
2025-11-18CARTER BRIAN NOption exercise / conversion (M)COMMON STOCK2,260USD 0.00USD 0SEC filing ↗
2025-11-18CARTER BRIAN NTax withholding (F)COMMON STOCK7,211USD 35.69USD 257,361SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerTTEK
CIK0000831641
SectorIndustrials
IndustryEngineering & Construction Yahoo Finance
SEC SIC8711 Services-Engineering Services
ExchangeNasdaq

Data coverage

Local Form 4 history677 transaction lines from 2020-01-22 to 2026-08-04
1 P purchase lines · 140 S sale lines · 536 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.