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Otter Tail Corp

OTTR
Exchange
Nasdaq
Industry
Electric Services
SEC CIK
0001466593

In the last 90 days, Otter Tail Corp insiders filed 0 open-market purchases and 2 sales; 363 institutions reported holding it in 13F filings for Q2 2026, worth $2.65B in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Otter Tail Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
345
+5 vs. Q2 2025
Shares held
28.2M
+694.8K (+2.5%) vs. Q2 2025
Total value
$2.31B
+$191.1M (+9.0%) vs. Q2 2025
New holders
37
120 more added
Sold out
32
111 more reduced

5 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OTTR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 345 institutions
Q1 2021: 174 institutionsQ2 2021: 169 institutionsQ3 2021: 199 institutionsQ4 2021: 224 institutionsQ1 2022: 235 institutionsQ2 2022: 249 institutionsQ3 2022: 266 institutionsQ4 2022: 249 institutionsQ1 2023: 256 institutionsQ2 2023: 261 institutionsQ3 2023: 277 institutionsQ4 2023: 298 institutionsQ1 2024: 304 institutionsQ2 2024: 315 institutionsQ3 2024: 328 institutionsQ4 2024: 324 institutionsQ1 2025: 334 institutionsQ2 2025: 345 institutionsQ3 2025: 345 institutionsQ4 2025: 354 institutionsQ1 2026: 347 institutionsQ2 2026: 363 institutions
Value heldQ3 2025: $2.31B
Q1 2021: $887.4MQ2 2021: $935.3MQ3 2021: $1.09BQ4 2021: $1.38BQ1 2022: $1.22BQ2 2022: $1.33BQ3 2022: $1.26BQ4 2022: $1.19BQ1 2023: $1.83BQ2 2023: $1.99BQ3 2023: $1.89BQ4 2023: $2.16BQ1 2024: $2.12BQ2 2024: $2.16BQ3 2024: $2.05BQ4 2024: $2.03BQ1 2025: $2.21BQ2 2025: $2.12BQ3 2025: $2.31BQ4 2025: $2.29BQ1 2026: $2.57BQ2 2026: $2.65B
Institutions holding OTTR and their total value by quarter
QuarterHoldersValue
Q2 2026363$2.65B
Q1 2026347$2.57B
Q4 2025354$2.29B
Q3 2025345$2.31B
Q2 2025345$2.12B
Q1 2025334$2.21B
Q4 2024324$2.03B
Q3 2024328$2.05B
Q2 2024315$2.16B
Q1 2024304$2.12B
Q4 2023298$2.16B
Q3 2023277$1.89B
Q2 2023261$1.99B
Q1 2023256$1.83B
Q4 2022249$1.19B
Q3 2022266$1.26B
Q2 2022249$1.33B
Q1 2022235$1.22B
Q4 2021224$1.38B
Q3 2021199$1.09B
Q2 2021169$935.3M
Q1 2021174$887.4M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Otter Tail Corp; share changes are against Q2 2025.

Institutions holding OTTR in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Allspring Global Investments Holdings, LLC10,154$818.8K0.00%−162−1.6%Reduced
Great Valley Advisor Group, Inc.10,200$836.6K0.02%00.0%Unchanged
HighTower Advisors, LLC10,207$836.7K0.00%+3,988+64.1%Added
SG Americas Securities, LLC10,291$844.0K0.00%+6,859+199.9%Added
Aquatic Capital Management LLC10,366$849.7K0.02%−10,354−50.0%Reduced
Sterling Capital Management LLC10,552$864.9K0.01%+1,517+16.8%Added
James Investment Research Inc10,613$869.9K0.10%+2,311+27.8%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys10,672$874.8K0.00%−86−0.8%Reduced
Police & Firemen's Retirement System of New Jersey10,676$875.1K0.01%+1,812+20.4%Added
Natixis Advisors, L.P.10,842$889.0K0.00%+10,842New
Linden Thomas Advisory Services, LLC11,092$909.2K0.09%+459+4.3%Added
Arizona State Retirement System11,135$912.7K0.00%+163+1.5%Added
State Board of Administration of Florida Retirement System11,451$938.6K0.00%−52−0.5%Reduced
State of Tennessee, Treasury Department11,925$977.5K0.00%−2,789−19.0%Reduced
Amalgamated Bank11,955$980.0K0.01%+50.0%Added
Teachers Retirement System of the State of Kentucky11,971$981.0K0.01%−720−5.7%Reduced
NJ State Employees Deferred Compensation Plan12,000$983.6K0.11%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)12,181$998.5K0.00%+1,673+15.9%Added
Voleon Capital Management LP12,413$1.02M0.02%+12,413New
Gsa Capital Partners LLP12,514$1.03M0.09%+12,514New
Los Angeles Capital Management LLC12,560$1.03M0.00%−20,857−62.4%Reduced
Inspire Advisors, LLC12,764$1.05M0.10%+12,764New
Yousif Capital Management, LLC13,350$1.09M0.01%−2,198−14.1%Reduced
Dynamic Technology Lab Private Ltd13,601$1.11M0.19%+13,601New
New York State Teachers Retirement System14,398$1.18M0.00%−141−1.0%Reduced
Winton Group Ltd14,399$1.18M0.04%+36+0.3%Added
Atom Investors LP14,470$1.19M0.09%−1,261−8.0%Reduced
AQR Capital Management LLC14,569$1.19M0.00%+1,492+11.4%Added
North Star Investment Management Corp.14,687$1.20M0.08%+30.0%Added
Jump Financial, LLC15,500$1.27M0.02%+11,430+280.8%Added
Janus Henderson Group PLC15,542$1.27M0.00%+856+5.8%Added
Advisors Asset Management, Inc.15,897$1.30M0.02%+2,253+16.5%Added
Exchange Traded Concepts, LLC15,987$1.31M0.01%+15,987New
American Century Companies Inc16,106$1.32M0.00%+380+2.4%Added
Cetera Investment Advisers16,391$1.34M0.00%+4,762+40.9%Added
Wealth Enhancement Advisory Services, LLC17,526$1.36M0.00%−84−0.5%Reduced
Squarepoint Ops LLC16,794$1.38M0.00%+3,798+29.2%Added
Russell Investments Group, Ltd.16,855$1.38M0.00%+1,671+11.0%Added
GWM Advisors LLC16,970$1.39M0.01%−3,407−16.7%Reduced
Capital Fund Management S.A.17,295$1.42M0.01%+17,295New
Focus Financial Network, Inc.17,357$1.42M0.05%−309−1.7%Reduced
Mirae Asset Global ETFs Holdings Ltd.17,915$1.47M0.00%−3,220−15.2%Reduced
Intech Investment Management LLC18,064$1.48M0.01%−59,352−76.7%Reduced
Louisiana State Employees Retirement System19,300$1.58M0.03%−300−1.5%Reduced
Comerica Bank19,435$1.59M0.01%−2,609−11.8%Reduced
Quest Partners LLC20,109$1.65M0.11%+1,065+5.6%Added
John G Ullman & Associates Inc20,650$1.69M0.23%+4,700+29.5%Added
State of Alaska, Department of Revenue21,087$1.73M0.02%−3,842−15.4%Reduced
Illinois Municipal Retirement Fund21,900$1.80M0.02%+185+0.9%Added
Manufacturers Life Insurance Company, The21,940$1.80M0.00%−1,313−5.6%Reduced
Verition Fund Management LLC22,171$1.82M0.01%−5,084−18.7%Reduced
MetLife Investment Management22,640$1.86M0.01%−775−3.3%Reduced
Alps Advisors Inc23,173$1.90M0.01%+993+4.5%Added
Quantbot Technologies LP23,195$1.90M0.05%−8,390−26.6%Reduced
Mariner, LLC23,848$1.95M0.00%−2,125−8.2%Reduced
State of Wisconsin Investment Board24,045$1.97M0.00%+98+0.4%Added
OneAscent Financial Services LLC24,655$2.02M0.13%−55−0.2%Reduced
State of New Jersey Common Pension Fund D25,600$2.10M0.01%+1,031+4.2%Added
Ossiam26,200$2.15M0.03%+26,200New
Healthcare of Ontario Pension Plan Trust Fund28,185$2.31M0.00%+28,185New
Commonwealth Equity Services, LLC28,291$2.32M0.00%+6,042+27.2%Added
Edgestream Partners, L.P.28,867$2.37M0.07%−1,555−5.1%Reduced
Financial Engines Advisors L.L.C.29,990$2.46M0.00%+1,232+4.3%Added
Franklin Resources Inc31,598$2.59M0.00%+20,554+186.1%Added
Royce & Associates LP31,940$2.62M0.03%+180+0.6%Added
Virginia Retirement Systems Et Al32,054$2.63M0.02%+1,200+3.9%Added
Martingale Asset Management L P32,484$2.66M0.07%−578−1.7%Reduced
Thrivent Financial for Lutherans32,524$2.67M0.01%−5,437−14.3%Reduced
Advisor Group Holdings, Inc.31,838$2.67M0.00%+10,237+47.4%Added
US Bancorp32,597$2.67M0.00%+205+0.6%Added
Connor, Clark & Lunn Investment Management Ltd.32,811$2.69M0.01%−2,803−7.9%Reduced
Deutsche Bank AG33,769$2.77M0.00%+3,515+11.6%Added
Great West Life Assurance Co34,435$2.81M0.00%−561−1.6%Reduced
California State Teachers Retirement System34,852$2.86M0.00%−85−0.2%Reduced
Two Sigma Advisers, LP37,100$3.04M0.01%+27,300+278.6%Added
Jane Street Group, LLC37,718$3.09M0.00%−54,293−59.0%Reduced
Bridgeway Capital Management, LLC38,100$3.12M0.07%00.0%Unchanged
Benjamin Edwards Inc38,348$3.14M0.04%+38,348New
First Manhattan Co38,510$3.16M0.01%−2,450−6.0%Reduced
Palisades Investment Partners, LLC40,191$3.29M1.29%00.0%Unchanged
Citigroup Inc40,604$3.33M0.00%−9,430−18.8%Reduced
UBS Asset Management Americas Inc40,860$3.35M0.00%−37,918−48.1%Reduced
Balyasny Asset Management LLC42,651$3.50M0.01%−35,503−45.4%Reduced
Raymond James Financial Inc42,678$3.50M0.00%+7,678+21.9%Added
Price T Rowe Associates Inc42,746$3.50M0.00%+1,944+4.8%Added
Alliancebernstein L.P.43,647$3.58M0.00%−3,000−6.4%Reduced
Whittier Trust Co of Nevada Inc47,465$3.79M0.08%+199+0.4%Added
Trexquant Investment LP56,188$4.61M0.05%+50,546+895.9%Added
Wells Fargo & Company60,902$4.99M0.00%+6,421+11.8%Added
Man Group plc61,312$5.03M0.01%+61,312New
HRT Financial LP62,180$5.10M0.02%+11,618+23.0%Added
Schonfeld Strategic Advisors LLC62,966$5.16M0.04%+2,579+4.3%Added
Barclays PLC63,241$5.18M0.00%−15,929−20.1%Reduced
CBOE Vest Financial, LLC65,401$5.36M0.07%+24,185+58.7%Added
LPL Financial LLC66,150$5.42M0.00%+2,806+4.4%Added
Buck Wealth Strategies, LLC67,788$5.56M0.76%+1,660+2.5%Added
New York State Common Retirement Fund69,383$5.69M0.01%+1,800+2.7%Added
Swiss National Bank73,100$5.99M0.00%+1,100+1.5%Added
ProShare Advisors LLC81,445$6.68M0.01%−3,545−4.2%Reduced
Hotchkis & Wiley Capital Management LLC83,343$6.83M0.02%−27,322−24.7%Reduced