Skip to main content

BLAIR WILLIAM & CO/IL

Position in TTEK — Tetra Tech Inc

CIK 902367 CHICAGO, IL

Position in TTEK

as of Mar 31, 2026 · filed May 8, 2026
Position Value
$4,772,273
+$629,513 QoQ
Shares Held
158,442
+28.3% QoQ
Ownership
0.061%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2024
8 quarters on record
Voting authority Sole 79.69982706605572.ToString("F0")% Shared 0.ToString("F0")% None 20.300172933944282.ToString("F0")%

Common Shares in TTEK Over Time

Shares Held

Position Value (USD)

Position in Engineering & Construction

Industrials · as of Mar 31, 2026

BLAIR WILLIAM & CO/IL holds $156,905,808 across 14 Engineering & Construction names. TTEK ranks #4 (3.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 TTEK
Tetra Tech Inc
This page
158,442 $4,772,273

All Filings in TTEK

Export CSV
8 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $4,772,273 158,442
2025-12-31 $4,142,760 123,517
2025-09-30 $7,875,977 235,949
2025-06-30 $8,356,169 232,374
2025-03-31 $3,684,388 125,962
2024-12-31 $7,246,656 181,894
2024-09-30 $22,067,248 467,923
2024-06-30 $3,013,012 73,675