13F Insight
DOSSIER · 13F Holders · Q1 2026Industrials · Water, Sewer, Pipeline, Comm & Power Line ConstructionMega-capCrowded
PRIM

PRIMORIS SVCS CORP

524 institutions still hold PRIMORIS SVCS CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74164F103·Water, Sewer, Pipeline, Comm & Power Line Construction·524 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 3.3%
vs prior quarter
13F value held
$5.1B
73.0% inst. owned
of float
Holders
524
+86 QoQ
filers reporting
Activity
+18 / −61
+848 added · −704 reduced
this quarter
Concentration
23.39%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

524 institutions reported PRIM in Q1 2026. BlackRock, Inc. leads at 23.4% of the visible book. +86 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$1.2B8.3M0.02%Q1 202602
Vanguard Portfolio Management
CIK 0002100121
$523M3.7M0.03%Q1 202603
FULLER & THALER ASSET MANAGEMENT, INC.
CIK 0001082327
$424M3.0M1.43%Q1 202604
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$413M2.9M0.29%Q1 202605
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$334M2.3M0.01%Q1 202606
STATE STREET CORP
CIK 0000093751
$295M2.1M0.01%Q1 202607
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$269M1.9M0.05%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$208M1.5M0.01%Q1 202609
Invesco Ltd.
CIK 0000914208
$200M1.4M0.03%Q1 202610
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$166M1.2M0.03%Q1 202611
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$154M1.1M0.08%Q1 202612
Artemis Investment Management LLP
CIK 0001535385
$126M880K1.33%Q1 202613
CONGRESS ASSET MANAGEMENT CO
CIK 0000897378
$117M818K0.84%Q1 202614
WESTFIELD CAPITAL MANAGEMENT CO LP
CIK 0001177719
$106M743K0.45%Q1 202615
GOLDMAN SACHS GROUP INC
CIK 0000886982
$106M743K0.01%Q1 202616
FMR LLC
CIK 0000315066
$101M706K0.01%Q1 202617
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$98M684K0.01%Q1 202618
Merewether Investment Management, LP
CIK 0001736852
$97M675K1.87%Q1 202619
UBS Group AG
CIK 0001610520
$85M596K0.01%Q1 202620
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$85M683K0.03%Q1 2026
Page 1 of 27
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