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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, Q4 2025

Institutional positions in Otter Tail Corp as of Dec 31, 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
354
+12 vs. Q3 2025
Shares held
28.3M
+108.1K (+0.4%) vs. Q3 2025
Total value
$2.29B
−$23.3M (−1.0%) vs. Q3 2025
New holders
47
120 more added
Sold out
35
120 more reduced

3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 354 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 heldQ4 2025: $2.29B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Otter Tail Corp; share changes are against Q3 2025.

Institutions holding OTTR in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.6,391,447$516.5M0.01%+29,953+0.5%Added
Vanguard Group Inc5,059,480$408.9M0.01%−36,597−0.7%Reduced
State Street Corp1,561,440$126.2M0.00%−3,933−0.3%Reduced
Geode Capital Management, LLC1,019,262$82.4M0.01%+4,164+0.4%Added
Dimensional Fund Advisors LP850,729$68.8M0.01%−8,288−1.0%Reduced
First Trust Advisors LP810,638$65.5M0.05%−653,975−44.7%Reduced
Morgan Stanley562,289$45.4M0.00%+30,599+5.8%Added
Caisse de Depot Et Placement du Quebec554,733$44.8M0.08%−1,129−0.2%Reduced
LSV Asset Management536,941$43.4M0.09%+367,869+217.6%Added
Charles Schwab Investment Management Inc532,691$43.0M0.01%−8,766−1.6%Reduced
Gabelli Funds LLC469,100$37.9M0.26%00.0%Unchanged
JPMorgan Chase & Co418,928$33.9M0.00%−186,576−30.8%Reduced
Northern Trust Corp414,778$33.5M0.00%−28,086−6.3%Reduced
Bank of New York Mellon Corp358,577$29.0M0.01%−12,712−3.4%Reduced
Adage Capital Partners GP, L.L.C.344,149$27.8M0.04%+179,149+108.6%Added
Goldman Sachs Group Inc329,157$26.6M0.00%+6,407+2.0%Added
Bank of America Corp325,120$26.3M0.00%−52,107−13.8%Reduced
Gamco Investors, Inc. Et Al272,350$22.0M0.21%00.0%Unchanged
Two Sigma Investments, LP271,653$22.0M0.03%+134,029+97.4%Added
D. E. Shaw & Co., Inc.248,239$20.1M0.02%−11,773−4.5%Reduced
Invesco Ltd.231,178$18.7M0.00%−5,468−2.3%Reduced
Federated Hermes, Inc.205,346$16.6M0.03%+44,150+27.4%Added
Qube Research & Technologies Ltd201,274$16.3M0.02%+34,751+20.9%Added
Principal Financial Group Inc199,623$16.1M0.01%−2,505−1.2%Reduced
Public Sector Pension Investment Board193,919$15.7M0.05%+11,833+6.5%Added
Marshall Wace, LLP173,429$14.0M0.01%+20,863+13.7%Added
Two Sigma Advisers, LP161,100$13.0M0.03%+124,000+334.2%Added
Nuveen, LLC152,022$12.3M0.00%−1,610−1.0%Reduced
Millennium Management LLC146,518$11.8M0.01%+16,235+12.5%Added
Jane Street Group, LLC139,137$11.2M0.01%+101,419+268.9%Added
Royal Bank of Canada136,237$11.0M0.00%+5,783+4.4%Added
Victory Capital Management Inc128,413$10.4M0.01%+1,512+1.2%Added
Bank & Trust Co122,016$9.86M6.96%−470.0%Reduced
Citadel Advisors LLC115,209$9.31M0.01%−3,576−3.0%Reduced
Voloridge Investment Management, LLC112,021$9.05M0.03%−2,846−2.5%Reduced
HRT Financial LP111,894$9.04M0.03%+49,714+80.0%Added
Legal & General Group Plc103,327$8.35M0.00%−7,024−6.4%Reduced
Ameriprise Financial Inc98,493$7.96M0.00%−4,785−4.6%Reduced
Phocas Financial Corp.97,678$7.89M1.03%−235−0.2%Reduced
Rhumbline Advisers97,311$7.86M0.01%−5,537−5.4%Reduced
UBS Group AG95,588$7.72M0.00%−52,559−35.5%Reduced
UBS Asset Management Americas Inc93,303$7.54M0.00%+52,443+128.3%Added
Prudential Financial Inc92,524$7.48M0.01%−7,604−7.6%Reduced
Whittier Trust Co90,046$7.37M0.08%+108+0.1%Added
Denali Advisors LLC88,703$7.17M0.80%+2,578+3.0%Added
Squarepoint Ops LLC83,926$6.78M0.01%+67,132+399.7%Added
Hotchkis & Wiley Capital Management LLC83,569$6.75M0.02%+226+0.3%Added
Brandywine Global Investment Management, LLC82,701$6.68M0.04%−2,994−3.5%Reduced
ProShare Advisors LLC79,635$6.44M0.01%−1,810−2.2%Reduced
Wells Fargo & Company77,728$6.28M0.00%+16,826+27.6%Added
BNP Paribas Arbitrage, SA76,766$6.20M0.00%−11,131−12.7%Reduced
Tudor Investment Corp Et Al75,005$6.06M0.03%−66,278−46.9%Reduced
Swiss National Bank74,400$6.01M0.00%+1,300+1.8%Added
Buck Wealth Strategies, LLC72,905$5.89M0.75%+5,117+7.5%Added
New York State Common Retirement Fund69,282$5.60M0.01%−101−0.1%Reduced
Barclays PLC65,900$5.33M0.00%+2,659+4.2%Added
LPL Financial LLC64,048$5.18M0.00%−2,102−3.2%Reduced
Healthcare of Ontario Pension Plan Trust Fund62,918$5.08M0.01%+34,733+123.2%Added
Universal- Beteiligungs- und Servicegesellschaft mbH56,235$4.55M0.01%+49,891+786.4%Added
CBOE Vest Financial, LLC54,476$4.40M0.06%−10,925−16.7%Reduced
Whittier Trust Co of Nevada Inc48,186$3.95M0.08%+721+1.5%Added
Man Group plc47,320$3.82M0.01%−13,992−22.8%Reduced
Alliancebernstein L.P.45,887$3.71M0.00%+2,240+5.1%Added
Price T Rowe Associates Inc44,543$3.60M0.00%+1,797+4.2%Added
MUFG Securities EMEA plc44,000$3.56M0.04%+44,000New
Raymond James Financial Inc42,650$3.45M0.00%−28−0.1%Reduced
Thrivent Financial for Lutherans41,187$3.33M0.01%+8,663+26.6%Added
Palisades Investment Partners, LLC40,891$3.30M1.25%+700+1.7%Added
American Century Companies Inc39,917$3.23M0.00%+23,811+147.8%Added
Citigroup Inc38,463$3.11M0.00%−2,141−5.3%Reduced
Benjamin Edwards Inc38,294$3.09M0.03%−54−0.1%Reduced
First Manhattan Co38,210$3.09M0.01%−300−0.8%Reduced
Franklin Resources Inc36,993$2.99M0.00%+5,395+17.1%Added
US Bancorp36,733$2.97M0.00%+4,136+12.7%Added
Great West Life Assurance Co36,314$2.93M0.01%+1,879+5.5%Added
California State Teachers Retirement System35,754$2.89M0.00%+902+2.6%Added
Bridgeway Capital Management, LLC35,600$2.88M0.06%−2,500−6.6%Reduced
Wellington Management Group LLP35,029$2.83M0.00%+35,029New
Deutsche Bank AG35,017$2.83M0.00%+1,248+3.7%Added
Advisor Group Holdings, Inc.34,482$2.79M0.00%+2,644+8.3%Added
Martingale Asset Management L P33,241$2.69M0.07%+757+2.3%Added
XTX Topco Ltd32,434$2.62M0.07%+27,353+538.3%Added
Connor, Clark & Lunn Investment Management Ltd.31,911$2.58M0.01%−900−2.7%Reduced
Royce & Associates LP31,728$2.56M0.03%−212−0.7%Reduced
Financial Engines Advisors L.L.C.30,590$2.47M0.00%+600+2.0%Added
Quest Partners LLC30,566$2.47M0.14%+10,457+52.0%Added
State of New Jersey Common Pension Fund D26,319$2.13M0.01%+719+2.8%Added
ExodusPoint Capital Management, LP25,973$2.10M0.02%+25,973New
Mariner, LLC25,546$2.06M0.00%+1,698+7.1%Added
Dark Forest Capital Management LP25,090$2.03M0.09%+25,090New
John G Ullman & Associates Inc24,950$2.02M0.27%+4,300+20.8%Added
Trexquant Investment LP23,894$1.93M0.02%−32,294−57.5%Reduced
Commonwealth Equity Services, LLC23,685$1.91M0.00%−4,606−16.3%Reduced
Elo Mutual Pension Insurance Co23,106$1.87M0.03%+23,106New
Capstone Investment Advisors, LLC22,949$1.85M0.02%+14,375+167.7%Added
State of Wisconsin Investment Board22,401$1.81M0.00%−1,644−6.8%Reduced
Illinois Municipal Retirement Fund22,205$1.79M0.02%+305+1.4%Added
Alps Advisors Inc21,695$1.75M0.01%−1,478−6.4%Reduced
State of Alaska, Department of Revenue21,338$1.72M0.02%+251+1.2%Added
MetLife Investment Management21,098$1.70M0.01%−1,542−6.8%Reduced