Skip to main content
Equibles

CITADEL ADVISORS LLC

Position in TTEK — Tetra Tech Inc

CIK 1423053 MIAMI, FL
Back to TTEK Full portfolio

Position in TTEK

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$52,436,238
+$50,739,349 QoQ
Shares Held
1,740,911
+3341.0% QoQ
Ownership
0.671%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in TTEK Over Time

Shares Held

Position Value (USD)

Derivatives in TTEK

reported options exposure · as of Mar 31, 2026
CallValue
$521,076
CallShares
17,300
PutValue
$915,648
PutShares
30,400

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Engineering & Construction

Industrials · as of Mar 31, 2026

CITADEL ADVISORS LLC holds $827,384,171 across 39 Engineering & Construction names. TTEK ranks #5 (6.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 EME
EMCOR Group, Inc.
 178,496 $131,785,381
2 MTZ
Mastec Inc
 279,778 $90,015,773
3 BLD
QXO Insulation, LLC
 209,475 $73,588,567
4 ACM
Aecom
 714,657 $60,617,206
5 TTEK
Tetra Tech Inc
This page 		1,740,911 $52,436,238
6 PWR
Quanta Services, Inc.
 88,607 $48,647,014
7 PRIM
Primoris Services Corp
 282,418 $40,397,070
8 J
Jacobs Solutions Inc.
 299,454 $38,114,504

All Filings in TTEK

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $52,436,238 1,740,911
2026-03-31 $915,648 30,400
2026-03-31 $521,076 17,300
2025-12-31 $1,696,889 50,593
2025-12-31 $694,278 20,700
2025-12-31 $486,330 14,500
2025-09-30 $2,660,386 79,700
2025-09-30 $33,358,937 999,369
2025-09-30 $1,251,750 37,500
2025-06-30 $3,369,452 93,700
2025-06-30 $5,048,784 140,400
2025-06-30 $103,333,217 2,873,560
2025-03-31 $6,461,325 220,900
2025-03-31 $2,629,575 89,900
2025-03-31 $64,447,080 2,203,319
2024-12-31 $2,095,584 52,600
2024-12-31 $25,807,794 647,786
2024-12-31 $756,960 19,000
2024-09-30 $21,950,479 465,447
2024-09-30 $5,616,756 119,100
2024-09-30 $495,180 10,500
2024-06-30 $1,545,868 37,800
2024-06-30 $6,728,905 164,537
2024-06-30 $32,716 800
2024-03-31 $6,744,278 182,564
2024-03-31 $147,768 4,000
2024-03-31 $701,898 19,000
2023-12-31 $2,069,932 62,000
2023-12-31 $283,781 8,500
2023-12-31 $9,418,724 282,116
2023-09-30 $2,376,501 78,159
2023-09-30 $167,233 5,500
2023-09-30 $635,485 20,900
2023-06-30 $275,083 8,400
2023-06-30 $94,969 2,900
2023-06-30 $186,433 5,693
2023-03-31 $343,769 11,700
2023-03-31 $366,833 12,485
2023-03-31 $70,516 2,400
2022-12-31 $191,650 6,600
2022-12-31 $3,693,429 127,193
2022-12-31 $37,749 1,300
2022-09-30 $372,737 14,500
2022-09-30 $3,780,195 147,055
2022-06-30 $98,316 3,600
2022-06-30 $338,644 12,400
2022-06-30 $2,248,268 82,324
2022-03-31 $254,007 7,700
2022-03-31 $640,593 19,419
2022-03-31 $577,290 17,500

Report a Problem

Category
Description
Email (optional, for follow-up)