DOSSIER · 13F Holders · Q1 2026Utilities · Electric Services
OTTR

OTTER TAIL CORP

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

CUSIP 689648103·Electric Services·366 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$1.9B
visible holders
Holders
366
filers reporting
Concentration
29.53%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

366 institutions reported OTTR in Q1 2026. BlackRock, Inc. leads at 29.5% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$564M6.4M0.01%Q1 2026
02
Vanguard Portfolio Management
CIK 0002100121· Index
$259M2.9M0.01%Q1 2026
03
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$164M1.9M0.00%Q1 2026
04
STATE STREET CORP
CIK 0000093751
$138M1.6M0.00%Q1 2026
05
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$93M1.1M0.01%Q1 2026
06
LSV ASSET MANAGEMENT
CIK 0001050470
$92M1.0M0.20%Q1 2026
07
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$72M815K0.01%Q1 2026
08
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$58M663K0.05%Q1 2026
09
MORGAN STANLEY
CIK 0000895421
$57M654K0.00%Q1 2026
10
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$53M607K0.04%Q1 2026
11
CAISSE DE DEPOT ET PLACEMENT DU QUEBEC
CIK 0000898286
$50M570K0.08%Q1 2026
12
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$46M524K0.01%Q1 2026
13
GOLDMAN SACHS GROUP INC
CIK 0000886982
$43M485K0.00%Q1 2026
14
GABELLI FUNDS LLC
CIK 0001081407
$41M467K0.28%Q1 2026
15
NORTHERN TRUST CORP
CIK 0000073124· Index
$38M432K0.01%Q1 2026
16
Bank of New York Mellon Corp
CIK 0001390777
$31M351K0.01%Q1 2026
17
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$30M342K0.05%Q1 2026
18
BANK OF AMERICA CORP /DE/
CIK 0000070858
$30M336K0.00%Q1 2026
19
JPMORGAN CHASE & CO
CIK 0000019617
$29M340K0.00%Q1 2026
20
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$24M272K0.01%Q1 2026
Page 1 of 19
346 more holders available. Log in →
Insiders at OTTER TAIL CORP
Ludford Mary EJohnson Kathryn OSmestad Jennifer O.Rogelstad Timothy JWahlund Todd RNelson Tyler JRasche Steven PWebb Thomas J