Company profile
Tetra Tech Inc Insider Trading
TTEKEvery SEC Form 4 insider trading filing for Tetra Tech Inc (TTEK) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Services-Engineering Services
- CIK
- 0000831641
- Filings
- 119
- Insiders
- 18
- Last filing
- 2026-08-04
Activity summary
No insider transactions in the last 30 days. The most recent was on August 4, 2026, when Kirsten M Volpi bought 2,300 shares. 119 filings from 18 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Tetra Tech Inc insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $12.1M.
90 day insight
Over the last 90 days, Tetra Tech Inc insiders bought $22K across 2 transactions with no open-market sales.
- Most active insider: Kirsten M Volpi with 2 transactions totaling $22K.
- Largest single purchase: $22K by Kirsten M Volpi on Aug 4, 2026.
Activity skews bullish: buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 4, 2026 | Kirsten M Volpi | TTEK | Option Exercise | 2,300 | $9.59 | $22K |
| Aug 4, 2026 | Kirsten M Volpi | TTEK | Option Exercise | 2,300 | — | — |
| Jun 4, 2026 | Kirsten M Volpi | TTEK | Option Exercise | 1,700 | $9.59 | $16K |
| Jun 4, 2026 | Kirsten M Volpi | TTEK | Option Exercise | 1,700 | — | — |
| May 15, 2026 | Jeffrey R Feeler | TTEK | Purchase | 1,900 | $26.41 | $50K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Tetra Tech Inc as of 2026-06-30
Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →