Kirsten M. Volpi is Director at TETRA TECH INC (TTEK). They have made 19 open-market trades across 1 company since 2018, most recently 2026-08-04.
CIK 0001582882
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 19 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| TTEK | 74,218 | $3.0M |
Shares reported on the most recent Form 4, priced at the 2026-08-06 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TTEK | SELL | 2025-02-04 | 2025-02-06 | $34.34 | $554K | -8.3% | -9.8% | -7.2% |
| TTEK | SELL | 2024-09-10 | 2024-09-12 | $46.00 | $90K | +1.9% | +6.0% | -8.6% |
| TTEK | SELL | 2023-12-01 | 2023-12-05 | $162.74 | $725K | +1.2% | +0.0% | +12.0% |
| TTEK | SELL | 2023-11-20 | 2023-11-21 | $165.50 | $185K | +0.0% | +0.6% | +7.3% |
| TTEK | SELL | 2023-02-16 | 2023-02-21 | $145.74 | $131K | +0.6% | +1.4% | +2.2% |
| TTEK | SELL | 2022-12-06 | 2022-12-08 | $154.61 | $216K | -4.2% | -9.9% | -10.2% |
| TTEK | SELL | 2022-08-19 | 2022-08-23 | $144.66 | $174K | -6.3% | -10.0% | +9.9% |
| TTEK | SELL | 2022-06-01 | 2022-06-03 | $135.41 | $149K | -9.0% | -0.7% | -3.3% |
| TTEK | SELL | 2022-03-08 | 2022-03-10 | $156.34 | $141K | +2.7% | -5.4% | -17.3% |
| TTEK | SELL | 2021-12-07 | 2021-12-09 | $189.62 | $133K | -8.3% | -12.2% | -9.3% |
| TTEK | SELL | 2021-06-07 | 2021-06-07 | $119.15 | $1.3M | +1.2% | +2.9% | +22.2% |
| TTEK | SELL | 2020-12-08 | 2020-12-08 | $120.16 | $1.6M | -3.6% | +9.6% | +4.8% |
| TTEK | SELL | 2020-11-23 | 2020-11-25 | $122.20 | $116K | -1.8% | -3.9% | +13.6% |
| TTEK | SELL | 2020-11-16 | 2020-11-18 | $122.26 | $244K | -0.4% | -4.1% | +12.9% |
| TTEK | SELL | 2020-08-26 | 2020-08-26 | $93.44 | $75K | -4.2% | -2.1% | +31.1% |
| TTEK | SELL | 2020-05-07 | 2020-05-08 | $70.56 | $191K | +7.1% | +18.4% | +29.4% |
| TTEK | SELL | 2019-12-10 | 2019-12-12 | $85.99 | $37K | -1.4% | +1.0% | -12.8% |
| TTEK | SELL | 2019-08-14 | 2019-08-16 | $78.00 | $312K | -0.7% | +3.5% | +6.7% |
| TTEK | SELL | 2018-11-14 | 2018-11-16 | $66.94 | $80K | -6.5% | -19.1% | -11.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.