DOSSIER · 13F Holders · Q1 2026Utilities · Electric ServicesMega-capCrowded
POR

PORTLAND GEN ELEC CO

529 institutions still hold PORTLAND GEN ELEC CO as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 736508847·Electric Services·529 13F holders·last filed Mar 31, 2026
Market cap
9.3%
vs prior quarter
13F value held
$4.0B
46.0% inst. owned
of float
Holders
529
+135 QoQ
filers reporting
Activity
+43 / −75
+1,012 added · −836 reduced
this quarter
Concentration
23.13%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

529 institutions reported POR in Q1 2026. BlackRock, Inc. leads at 23.1% of the visible book. +135 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
$920M17.4M0.02%Q1 2026
02
Vanguard Portfolio Management
CIK 0002100121· Index
$387M7.3M0.02%Q1 2026
03
Clearbridge Investments, LLC
CIK 0001348883
$316M6.0M0.28%Q1 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$272M5.2M0.01%Q1 2026
05
STATE STREET CORP
CIK 0000093751
$248M4.6M0.01%Q1 2026
06
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$226M4.3M0.10%Q1 2026
07
FULLER & THALER ASSET MANAGEMENT, INC.
CIK 0001082327
$208M3.9M0.70%Q1 2026
08
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$160M3.0M0.13%Q1 2026
09
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$157M3.0M0.01%Q1 2026
10
HITE Hedge Asset Management LLC
CIK 0001568939
$142M2.7M8.01%Q1 2026
11
Invesco Ltd.
CIK 0000914208
$133M2.5M0.02%Q1 2026
12
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$97M1.8M0.04%Q1 2026
13
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$97M1.8M0.02%Q1 2026
14
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 0000912938
$94M1.8M0.03%Q1 2026
15
ATLAS Infrastructure Partners (UK) Ltd.
CIK 0001924953
$93M1.9M4.66%Q4 2025
16
MORGAN STANLEY
CIK 0000895421
$93M1.8M0.01%Q1 2026
17
BANK OF AMERICA CORP /DE/
CIK 0000070858
$88M1.7M0.01%Q1 2026
18
Neuberger Berman Group LLC
CIK 0001465109
$85M1.6M0.06%Q1 2026
19
JPMORGAN CHASE & CO
CIK 0000019617
$83M1.6M0.01%Q1 2026
20
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$78M1.5M0.01%Q1 2026
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