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SEI INVESTMENTS CO

Position in TTEK — Tetra Tech Inc

CIK 350894 OAKS, PA

Position in TTEK

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$7,201,439
-$2,294,914 QoQ
Shares Held
249,271
-20.9% QoQ
Ownership
0.097%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#110
of 543 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TTEK Over Time

Shares Held

Position Value (USD)

Position in Engineering & Construction

Industrials · as of Jun 30, 2026

SEI INVESTMENTS CO holds $694,136,589 across 31 Engineering & Construction names. TTEK ranks #18 (1.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in TTEK

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $7,201,439 249,271
2026-03-31 $9,496,353 315,284
2025-12-31 $9,140,487 272,525
2025-09-30 $15,654,985 468,993
2025-06-30 $17,649,095 490,798
2025-03-31 $11,533,947 394,323
2024-12-31 $20,640,546 518,086
2024-09-30 $30,287,000 642,218
2024-06-30 $18,351,874 89,749
2024-03-31 $18,054,478 97,745
2023-12-31 $15,807,603 94,696
2023-09-30 $18,119,695 119,185
2023-06-30 $19,860,515 121,293
2023-03-31 $20,210,995 137,574
2022-12-31 $4,824,372 33,228
2022-09-30 $15,607,654 121,432
2022-06-30 $15,369,657 112,557
2022-03-31 $2,742,951 16,630
2021-12-31 $2,990,176 17,610
2021-09-30 $687,710 4,605
2021-06-30 $294,116 2,410
2021-03-31 $1,350,413 9,950
2020-12-31 $1,152,010 9,950
2020-09-30 $350,103 3,666
2020-06-30 $267,742 3,384
2020-03-31 $764,178 10,821