13F Insight
DOSSIER · 13F Holders · Q4 2025CyclicalNet sold
TTEK 2.25 08/15/28

TETRA TECH INC NEW

67 institutions still hold TETRA TECH INC NEW as of Q4 2025. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 88162GAB9·67 13F holders·last filed Dec 31, 2025
Market cap
—
▲ 6.1%
vs prior quarter
13F value held
$507M
67.0% inst. owned
of float
Holders
67
+100 QoQ
filers reporting
Activity
+68 / −24
+773 added · −760 reduced
this quarter
Concentration
12.18%
ZAZOVE ASSOCIATES LLC #1
top holder share
AI Holders Summary · Q4 2025

67 institutions reported TTEK 2.25 08/15/28 in Q4 2025. ZAZOVE ASSOCIATES LLC leads at 12.2% of the visible book. +100 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
ZAZOVE ASSOCIATES LLC
CIK 0001009012
$62M56.9M5.32%Q4 202502
MACKAY SHIELDS LLC
CIK 0000061227
$57M54.5M2.10%Q1 202603
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$46M43.8M0.04%Q1 202604
ADVENT CAPITAL MANAGEMENT /DE/
CIK 0001097278
$42M39.8M1.16%Q1 202605
CAMDEN ASSET MANAGEMENT L P /CA
CIK 0000903944
$36M34.9M1.24%Q1 202606
Point72 Asset Management, L.P.
CIK 0001603466
$36M33.8M0.05%Q1 202607
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
$32M30.1M0.06%Q1 202608
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$26M25.0M0.16%Q1 202609
DeepCurrents Investment Group LLC
CIK 0001754535
$26M24.4M0.82%Q1 202610
ABSOLUTE INVESTMENT ADVISERS, LLC
CIK 0001316187
$18M17.5M2.16%Q1 202611
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$18M17.3M0.01%Q1 202612
Weiss Asset Management LP
CIK 0001357550
$16M15.5M0.28%Q1 202613
BANK OF MONTREAL /CAN/
CIK 0000927971
$16M15.3M0.01%Q1 202614
KIM, LLC
CIK 0001888968
$13M12.1M1.30%Q1 202615
STATE STREET CORP
CIK 0000093751
$12M11.8M0.00%Q1 202616
FMR LLC
CIK 0000315066
$11M10.6M0.00%Q1 202617
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$11M10.1M0.01%Q1 202618
Mirabaud Asset Management (France) SAS
CIK 0002033031
$10M10.0M5.34%Q1 202619
BlackRock, Inc.
CIK 0002012383
$10M9.2M0.00%Q1 202620
SHENKMAN CAPITAL MANAGEMENT INC
CIK 0001275228
$9M8.7M1.12%Q1 2026
Page 1 of 4
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