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Tetra Tech (TTEK)
NASDAQ
$37.00-$0.002 (-0.005%)
Price as of Aug 24, 2026 4:36 AM EDT- $9.5BMarket Cap
- 1.31%1-Year Change
- Engineering & ConstructionIndustry
Tetra Tech (TTEK)
$37.00-$0.002 (-0.005%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 11.05% | 28.7M | +1.9M (+6.57%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 10.03% | 26.0M | -187,703 (-0.72%) | Dec 31, 2024 |
VANGUARD GROUP INC | 9.94% | 25.8M | -501,178 (-1.94%) | Dec 31, 2025 |
VANGUARD PORTFOLIO MANAGEMENT LLC | 4.80% | 12.5M | -175,124 (-1.40%) | Jun 30, 2026 |
N/A | 4.80% | 12.5M | -175,124 (-1.40%) | Jun 30, 2026 |
VANGUARD CAPITAL MANAGEMENT LLC | 4.52% | 11.7M | +16,587 (+0.14%) | Jun 30, 2026 |
CAPITAL INTERNATIONAL INVESTORS | 4.49% | 11.7M | +265,971 (+2.28%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 8.11% | 21.1M | +362,344 (+1.72%) | Mar 31, 2026 |
NEW PERSPECTIVE FUND | 1.57% | 4.1M | 0 (0.00%) | Mar 31, 2026 |
SMALLCAP WORLD FUND INC | 1.27% | 3.3M | +1.7M (+52.07%) | Mar 31, 2026 |
Capitol Series Trust | 1.22% | 3.2M | 0 (0.00%) | Apr 30, 2026 |
Virtus Convertible & Income Fund | 1.13% | 2.9M | 0 (0.00%) | Apr 30, 2026 |
INVESCO EXCHANGE-TRADED FUND TRUST | 0.98% | 2.5M | +431,487 (+16.94%) | Apr 30, 2026 |
ADVENT CONVERTIBLE & INCOME FUND | 0.97% | 2.5M | 0 (0.00%) | Apr 30, 2026 |
Current Ownership Distribution
- Institutions2.5B (76.59%)
- Mutual Funds750.9M (23.35%)
- Insiders1.9M (0.06%)
- Other0 (0.00%)
Insider Transactions
- 0.06% (1.9M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 1Number of InsiderSelling (last 12 months)
- $1.5MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Volpi Kirsten M | Exempt | Aug 04, 2026 | $0.00 | 2,300 | $0.00 | 4,000 |
Volpi Kirsten M | Exempt | Aug 04, 2026 | $22,057.00 | 2,300 | $9.59 | 74,218 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 4,500 | $0.00 | 0 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 2,250 | $0.00 | 2,250 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 1,925 | $0.00 | 1,925 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 2,910 | $0.00 | 0 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 2,050 | $0.00 | 0 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 795 | $0.00 | 0 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 795 | $0.00 | 0 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 1,900 | $0.00 | 0 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 2,125 | $0.00 | 0 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 1,718 | $0.00 | 0 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 4,500 | $0.00 | 149,908 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 2,250 | $0.00 | 152,158 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 1,925 | $0.00 | 154,083 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 2,910 | $0.00 | 156,993 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 2,050 | $0.00 | 159,043 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 795 | $0.00 | 159,838 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 795 | $0.00 | 160,633 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 1,900 | $0.00 | 162,533 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 2,125 | $0.00 | 164,658 |
Ritrievi Kimberly E | Exempt | Mar 16, 2026 | $0.00 | 1,718 | $0.00 | 166,376 |
Ritrievi Kimberly E | Award | Mar 16, 2026 | $0.00 | 25,883 | $0.00 | 192,259 |
Obiaya Christiana | Exempt | Feb 19, 2026 | $0.00 | 495 | $0.00 | 0 |
Obiaya Christiana | Exempt | Feb 19, 2026 | $0.00 | 495 | $0.00 | 9,666 |
Volpi Kirsten M | Exempt | Feb 10, 2026 | $0.00 | 1,000 | $0.00 | 8,000 |
Volpi Kirsten M | Exempt | Feb 10, 2026 | $9,590.00 | 1,000 | $9.59 | 70,218 |
BURDICK STEVEN M EVP, CFO | Gift | Feb 06, 2026 | $0.00 | 11,100 | $0.00 | 138,251 |
CARTER BRIAN N SVP, Corporate Controller | Sell | Feb 04, 2026 | $401,405.28 | 9,979 | $40.23 | 46,496 |
Feeler Jeffrey R | Award | Jan 26, 2026 | $0.00 | 1,754 | $0.00 | 1,754 |