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Disclosery

OTTR OTTER TAIL CORP

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COM (common), issuer CIK 1466593

335 managers (344 13F filers) reported a position in OTTR shares at 2025-09-30, 28,201,422 shares in all. 34 filers opened a position and 33 filers sold out during the quarter.

Managers
335
13F filers
344
New
34
Added
120
Reduced
110
Sold out
33
Shares held by filers
28,201,422

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.6,361,494$521M0.01%-67,08513F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC5,096,077$418M0.01%-46,73313F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,565,373$128M<0.01%-6,57213F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP1,464,613$120M0.09%+221,03913F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,015,098$83.2M0.01%+4,48513F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP859,017$70.4M0.02%-25,49013F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 2 filers holding741,450$60.8M-1,542Timeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO605,504$49.6M<0.01%+264,00913F-HR/ATimelineGroup
Caisse de depot et placement du Quebec555,862$45.6M0.08%-8,11113F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co541,457$44.4M0.01%+7,12913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY531,690$43.6M<0.01%+100,79413F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP442,864$36.3M<0.01%+34,89113F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/377,227$30.9M<0.01%-31,93013F-HR/ATimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp371,289$30.4M0.01%-13,18113F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC322,750$26.5M<0.01%+140,95413F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.260,012$21.3M0.02%+95,28613F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.236,646$19.4M<0.01%-17,56113F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding202,222$16.6M-5,427Timeline
UBS Group AGgroup of 2 filers holding189,007$15.5M+27,568Timeline
Public Sector Pension Investment Board182,086$14.9M0.05%+39,22613F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding174,724$14.3M+140,576Timeline
LSV ASSET MANAGEMENT169,072$13.9M0.03%+109,37213F-HRTimeline
Qube Research & Technologies Ltd166,523$13.6M0.02%+26,60213F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…165,000$13.5M0.02%-20,00013F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.161,196$13.2M0.02%-10,33013F-HRTimelineGroup
Nuveen, LLCin group TIAA153,632$12.6M<0.01%-95213F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP152,566$12.5M0.01%+93,54913F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL141,283$11.6M0.08%-13,30813F-HR/ATimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA130,454$10.7M<0.01%+50113F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC130,283$10.7M0.01%-346,29913F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC126,901$10.4M0.01%+2,20013F-HRTimeline
Bank & Trust Co122,063$10M7.39%-78113F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC118,785$9.74M0.01%-117,27613F-HRTimelineGroup
Franklin Resourcesgroup of 2 filers holding117,293$9.61M+32,554Timeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC114,867$9.42M0.03%+6,95813F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc110,351$9.05M<0.01%-1,69013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC107,910$8.85M0.01%+68,80013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC103,278$8.47M<0.01%-16,10813F-HRTimelineGroup
RHUMBLINE ADVISERS102,848$8.43M0.01%-6,37713F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC100,128$8.21M0.01%+23,50013F-HRTimelineGroup
Phocas Financial Corp.97,913$8.03M1.04%+1,99413F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS87,897$7.2M0.01%+18,31113F-HRTimelineGroup
WHITTIER TRUST CO89,938$7.17M0.08%+1,52913F-HRTimeline
DENALI ADVISORS LLC86,125$7.06M0.8%+6,95013F-HRTimeline
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC83,343$6.83M0.02%-27,32213F-HRTimeline
ProShare Advisors LLC81,445$6.68M0.01%-3,54513F-HRTimeline
Swiss National Bank73,100$5.99M<0.01%+1,10013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND69,383$5.69M0.01%+1,80013F-HRTimeline
Buck Wealth Strategies, LLC67,788$5.56M0.76%+1,66013F-HRTimeline
LPL Financial LLC66,150$5.42M<0.01%+2,80613F-HRTimeline
Vest Financial, LLC65,401$5.36M0.07%+24,18513F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC63,241$5.18M<0.01%-15,92913F-HR/ATimelineGroup
Schonfeld Strategic Advisors LLC62,966$5.16M0.04%+2,57913F-HRTimeline
HRT FINANCIAL LP62,180$5.1M0.02%+11,61813F-HRTimeline
Man Group plcin group Man Group plc61,312$5.03M0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN60,902$4.99M<0.01%+6,42113F-HRTimelineGroup
Trexquant Investment LP56,188$4.61M0.05%+50,54613F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC47,465$3.79M0.08%+19913F-HRTimeline
ALLIANCEBERNSTEIN L.P.43,647$3.58M<0.01%-3,00013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/42,746$3.5M<0.01%+1,94413F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC42,678$3.5M<0.01%+7,67813F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management42,651$3.5M0.01%-35,50313F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC40,604$3.33M<0.01%-9,43013F-HRTimelineGroup
Palisades Investment Partners, LLC40,191$3.29M1.29%013F-HRTimeline
FIRST MANHATTAN CO. LLC.38,510$3.16M0.01%-2,45013F-HRTimeline
BENJAMIN EDWARDS INCin group BENJAMIN EDWARDS INC38,348$3.14M0.04%new13F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC38,100$3.12M0.07%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC37,718$3.09M<0.01%-54,29313F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…34,852$2.86M<0.01%-8513F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co34,435$2.81M<0.01%-56113F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\33,769$2.77M<0.01%+3,51513F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…32,811$2.69M0.01%-2,80313F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\32,597$2.67M<0.01%+20513F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.31,838$2.67M<0.01%+10,23713F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…32,524$2.67M0.01%-5,43713F-HRTimelineGroup
MARTINGALE ASSET MANAGEMENT L P32,484$2.66M0.07%-57813F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al32,054$2.63M0.02%+1,20013F-HRTimeline
ROYCE & ASSOCIATES LP31,940$2.62M0.03%+18013F-HRTimeline
Financial Engines Advisors L.L.C.29,990$2.46M<0.01%+1,23213F-HRTimeline
Edgestream Partners, L.P.28,867$2.37M0.07%-1,55513F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC28,291$2.32M<0.01%+6,04213F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…28,185$2.31M<0.01%new13F-HRTimeline
OSSIAM26,200$2.15M0.03%new13F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…25,600$2.1M0.01%+1,03113F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD24,045$1.97M<0.01%+9813F-HRTimeline
Mariner, LLCin group Mariner, LLC23,848$1.95M<0.01%-2,12513F-HRTimelineGroup
Quantbot Technologies LP23,195$1.9M0.05%-8,39013F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC23,173$1.9M0.01%+99313F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…22,640$1.86M0.01%-77513F-HRTimelineGroup
Verition Fund Management LLC22,171$1.82M0.01%-5,08413F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …21,940$1.8M<0.01%-1,31313F-HRTimelineGroup
Illinois Municipal Retirement Fund21,900$1.8M0.02%+18513F-HRTimeline
State of Alaska, Department of Revenue21,087$1.73M0.02%-3,84213F-HRTimeline
JOHN G ULLMAN & ASSOCIATES INC20,650$1.69M0.23%+4,70013F-HRTimeline
AlphaQuest LLC20,109$1.65M0.11%+1,06513F-HRTimeline
COMERICA BANK19,435$1.59M0.01%-2,60913F-HRTimeline
Louisiana State Employees Retirement Sy…19,300$1.58M0.03%-30013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC18,064$1.48M0.01%-59,35213F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…17,915$1.47M<0.01%-3,22013F-HRTimelineGroup
Focus Financial Network, Inc.17,357$1.42M0.05%-30913F-HRTimeline
CAPITAL FUND MANAGEMENT S.A.17,295$1.42M0.01%new13F-HRTimeline
NewEdge Advisors, LLC16,970$1.39M0.01%-3,40713F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…16,855$1.38M<0.01%+1,67113F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC16,794$1.38M<0.01%+3,79813F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…17,526$1.36M<0.01%-8413F-HRTimeline
Cetera Investment Advisers16,391$1.34M<0.01%+4,76213F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC16,106$1.32M<0.01%+38013F-HRTimelineGroup
EXCHANGE TRADED CONCEPTS, LLC15,987$1.31M0.01%new13F-HRTimeline
Advisors Asset Management, Inc.15,897$1.3M0.02%+2,25313F-HR/ATimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson15,542$1.27M<0.01%+85613F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC15,500$1.27M0.02%+11,43013F-HR/ATimelineGroup
North Star Investment Management Corp.14,687$1.2M0.08%+313F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC14,569$1.19M<0.01%+1,49213F-HRTimelineGroup
Atom Investors LP14,470$1.19M0.09%-1,26113F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd14,399$1.18M0.04%+3613F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…14,398$1.18M<0.01%-14113F-HRTimeline
Dynamic Technology Lab Private Ltd13,601$1.11M0.19%new13F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC13,350$1.09M0.01%-2,19813F-HRTimeline
Inspire Investing, LLCgroup of 2 filers holding12,764$1.05MnewTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC12,560$1.03M<0.01%-20,85713F-HRTimeline
GSA CAPITAL PARTNERS LLP12,514$1.03M0.09%new13F-HRTimeline
Voleon Capital Management LP12,413$1.02M0.02%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…12,181$998K<0.01%+1,67313F-HRTimeline
NJ State Employees Deferred Compensatio…12,000$984K0.11%013F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…11,971$981K0.01%-72013F-HRTimeline
AMALGAMATED BANK11,955$980K0.01%+513F-HRTimeline
State of Tennessee, Department of Treas…11,925$977K<0.01%-2,78913F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…11,451$939K<0.01%-5213F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM11,135$913K<0.01%+16313F-HRTimeline
Linden Thomas Advisory Services, LLC11,092$909K0.09%+45913F-HRTimeline
NATIXIS ADVISORS, LLCin group Natixis Investment Managers10,842$889K<0.01%new13F-HRTimelineGroup
Police & Firemen's Retirement System of…10,676$875K0.01%+1,81213F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…10,672$875K<0.01%-8613F-HRTimeline
JAMES INVESTMENT RESEARCH, INC.10,613$870K0.1%+2,31113F-HRTimeline
Sterling Capital Management LLC10,552$865K0.01%+1,51713F-HRTimeline
Aquatic Capital Management LLC10,366$850K0.02%-10,35413F-HRTimeline
SG Americas Securities, LLC10,291$844K<0.01%+6,85913F-HRTimeline
HighTower Advisors, LLC10,207$837K<0.01%+3,98813F-HRTimeline
GREAT VALLEY ADVISOR GROUP, INC.in group GREAT VALLEY ADVISOR GROUP, I…10,200$837K0.02%013F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …10,154$819K<0.01%-16213F-HRTimelineGroup
CWM, LLCin group CWM, LLC9,816$805K<0.01%-60213F-HRTimelineGroup
VISTA INVESTMENT PARTNERS LLC9,798$803K0.22%-1413F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC9,471$776K<0.01%-4,05713F-HRTimelineGroup
OREGON PUBLIC EMPLOYEES RETIREMENT FUND9,423$772K0.01%-20013F-HRTimeline
Entropy Technologies, LP9,157$751K0.06%+1,79913F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC9,135$749K<0.01%+86113F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding9,060$743K-1,540Timeline
FOSTER & MOTLEY INC9,015$739K0.04%-7013F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…8,574$703K0.01%+4,87613F-HRTimelineGroup
MACKENZIE FINANCIAL CORP8,531$699K<0.01%-5,69513F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/8,523$699K<0.01%-3,53713F-HRTimelineGroup
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC8,488$696K<0.01%-12113F-HRTimelineGroup
ALERUS FINANCIAL NA8,398$688K0.04%+97413F-HRTimeline
NorthRock Partners, LLC8,272$678K0.01%-1213F-HRTimeline
Cambridge Investment Research Advisors,…8,142$667K<0.01%013F-HRTimeline
Quantinno Capital Management LP7,878$646K<0.01%+2,15713F-HRTimeline
MML INVESTORS SERVICES, LLC7,782$638K<0.01%+40913F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…7,630$625K<0.01%013F-HRTimelineGroup
Bluespring Wealth Management, LLC7,459$611K0.05%013F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC7,407$608K<0.01%+65913F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth7,020$575K<0.01%-1,02613F-HRTimelineGroup
Amundiin group Amundi7,230$573K<0.01%+34313F-HRTimelineGroup
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…6,854$562K0.31%013F-HR/ATimelineGroup
Johnson Wealth Management, LLC6,732$552K0.3%13F-HRTimeline
RBA Wealth Management, LLC6,485$532K0.18%-33613F-HRTimeline
Bridgewater Associates, LP6,406$525K<0.01%new13F-HRTimeline
FMR LLCin group FMR LLC6,355$521K<0.01%-6913F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …6,344$520K<0.01%+1,95413F-HRTimelineGroup
EntryPoint Capital, LLC6,300$516K0.2%new13F-HRTimeline
BOKF, NAin group BOKF, NA6,293$516K0.01%-613F-HRTimelineGroup
COLDSTREAM CAPITAL MANAGEMENT INC6,170$506K0.01%-2013F-HRTimeline
Maryland State Retirement & Pension Sys…6,024$494K0.01%-6,29113F-HRTimeline
Creative Planningin group Creative Planning6,012$493K<0.01%-98113F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO5,924$486K<0.01%-78513F-HRTimelineGroup
D.A. DAVIDSON & CO.5,869$481K<0.01%-51513F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP5,739$473K<0.01%-22113F-HRTimelineGroup
iSAM Funds (UK) Ltdin group iSAM Funds (UK) Ltd5,693$467K0.1%+313F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC5,629$461K<0.01%-1,94813F-HRTimelineGroup
INFRASTRUCTURE CAPITAL ADVISORS, LLC5,884$454K0.06%new13F-HRTimeline
CIBC Bancorp USA Inc.group of 2 filers holding5,411$444K+4,111Timeline
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding5,343$438K+13Timeline
New Age Alpha Advisors, LLC5,282$433K0.02%-14713F-HRTimeline
Opus Capital Group, LLC5,266$432K0.05%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…5,087$417K<0.01%+5013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd5,081$416K0.02%-5,49713F-HRTimelineGroup
Jackson Creek Investment Advisors LLC5,061$415K0.12%new13F-HRTimeline
Ensign Peak Advisors, Inc5,060$415K<0.01%-5,50013F-HR/ATimeline
Hendershot Investments Inc.5,000$410K0.05%013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS4,938$405K<0.01%-78513F-HRTimeline
Valtinson Bruner Financial Planning LLC4,937$405K0.12%013F-HRTimeline
Cynosure Group, LLC4,905$402K0.04%013F-HR/ATimeline
Private Advisor Group, LLC4,721$387K<0.01%+313F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC4,718$387K<0.01%+52713F-HRTimelineGroup
Alternative Investment Advisors, LLC.4,708$386K0.18%+2813F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…4,694$385K<0.01%-68913F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…4,608$378K<0.01%013F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC4,609$378K<0.01%+89113F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC4,550$373K0.01%+1613F-HRTimeline
Modern Wealth Management, LLC4,484$368K0.01%+113F-HRTimeline
Janney Montgomery Scott LLC4,479$367K<0.01%013F-HRTimeline