OTTROtter Tail Corporation

$92.37

Who owns OTTR

338 institutions reported holding OTTR for 2026Q1, together 69% of the company, fewer than the 348 a quarter earlier.

338

Institutions reporting a position · as of 2026Q1 · down from 348 the quarter before

Shares held by institutions
29.2M

Shares held by institutions · 69% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.56B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
36%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
52
New positions
22
Positions exited
37
Added to
129
Reduced
86
Top 10 holdersof the company
44%
Institutional ownership by quarter, 2013Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q133829.2M$2.56B
2025Q434828.3M$2.29B
2025Q334028.2M$2.31B
2025Q234127.5M$2.13B
2025Q133227.4M$2.21B
2024Q432227.5M$2.03B
2024Q332426.3M$2.05B
2024Q231224.7M$2.16B
2024Q129924.6M$2.12B
2023Q429225.4M$2.16B
2023Q327224.9M$1.89B
2023Q225625.2M$1.99B
2023Q125125.6M$1.83B
2022Q424720.3M$1.19B
2022Q326320.4M$1.26B
2022Q224419.8M$1.33B
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.6.4M15%$564M
VANGUARD GROUP INC5.1M12%$452M
STATE STREET CORP1.6M3.7%$138M
GEODE CAPITAL MANAGEMENT LLC1.1M2.5%$93M
LSV ASSET MANAGEMENT1.0M2.5%$92M
DIMENSIONAL FUND ADVISORS LP0.8M1.9%$72M
TWO SIGMA INVESTMENTS, LP0.7M1.6%$58M
MORGAN STANLEY0.7M1.6%$57M
FIRST TRUST ADVISORS LP0.6M1.4%$53M
Caisse de depot et placement du Quebec0.6M1.4%$50M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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