OTTR · Otter Tail Corp · Shareholders & Ownership
Every disclosed holder of OTTR in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns OTTR
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 29,600,213 | 70.50% |
| Insiders (Forms 3, 4, 5) | 693,623 | 1.65% |
| 13D/G-only blocks | 2,973,337 | 7.08% |
| Remaining | 8,718,407 | 20.77% |
| Registered funds (N-PORT, not summed) | 16,330,599 | 38.90% |
Shares outstanding: 41,985,580, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of OTTR
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,557,596 | ||
| 1.1 |
iShares Core S&P Small-Cap ETF
Fund
S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
2,529,498 | ||
| 1.2 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,003,879 | ||
| 1.3 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
369,337 | ||
| 1.4 |
iShares S&P Small-Cap 600 Value ETF
Fund
S000004316 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
198,808 | ||
| 1.5 |
iShares S&P Small-Cap 600 Growth ETF
Fund
S000004314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
169,631 | ||
| 2 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,996,322 | ||
| 3 |
Cascade Investment, L.L.C.
13D
CIK 1052192 · Unknown · Oct 1, 2024
|
2,973,337 | ||
| 4 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,891,243 | ||
| 5 |
|
1,645,782 | ||
| 5.1 |
STATE STREET CORP
13G
CIK 93751 · Bank · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
2,148,193 | ||
| 5.2 |
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund
S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
383,708 | ||
| 5.3 |
State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF
Fund
S000006974 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
119,683 | ||
| 5.4 |
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund
S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
105,496 | ||
| 5.5 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
13,676 | ||
| 6 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,336,455 | ||
| 7 |
LSV ASSET MANAGEMENT
13F
CIK 1050470 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,186,461 | ||
| 7.1 |
LSV Small Cap Value Fund
Fund
S000039922 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE FUND, not summed
|
53,090 | ||
| 8 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,112,886 | ||
| 9 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
963,651 | ||
| 10 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
885,376 | ||
| 10.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
23 | ||
| 11 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
828,016 | ||
| 11.1 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
225,432 | ||
| 11.2 |
U.S. MICRO CAP PORTFOLIO
Fund
S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
158,019 | ||
| 11.3 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
139,112 | ||
| 11.4 |
U.S. CORE EQUITY 2 PORTFOLIO
Fund
S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
49,471 | ||
| 11.5 |
Dimensional U.S. Core Equity 2 ETF
Fund
S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
48,762 | ||
| 12 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
725,769 | ||
| 13 |
FIRST TRUST ADVISORS LP
13F
CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
637,043 | ||
| 13.1 |
FT Vest SMID Rising Dividend Achievers Target Income ETF
Fund
S000081275 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded Fund IV, not summed
|
42,594 | ||
| 13.2 |
First Trust Small Cap Core AlphaDEX Fund
Fund
S000017339 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
|
38,779 | ||
| 13.3 |
First Trust/Dow Jones Dividend & Income Allocation Portfolio
Fund
S000036417 · Registered fund · Jun 30, 2026
First Trust Variable Insurance Trust, not summed
|
27,783 | ||
| 13.4 |
First Trust Small Cap Value AlphaDEX Fund
Fund
S000031807 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
|
10,625 | ||
| 13.5 |
First Trust SMID Capital Strength ETF
Fund
S000058147 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
|
6,638 | ||
| 14 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
609,934 | ||
| 15 |
First Trust SMID Cap Rising Dividend Achievers ETF
Fund
S000059604 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
|
540,392 | ||
| 16 |
Caisse de depot et placement du Quebec
13F
CIK 898286 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
539,873 | ||
| 17 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
519,756 | ||
| 17.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
201,704 | ||
| 17.2 |
Schwab Fundamental U.S. Small Company ETF
Fund
S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
105,048 | ||
| 17.3 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
94,760 | ||
| 17.4 |
Schwab Fundamental U.S. Small Company Index Fund
Fund
S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
27,867 | ||
| 17.5 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
24,841 | ||
| 18 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
481,289 | ||
| 19 |
GABELLI FUNDS LLC
13F
CIK 1081407 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
462,200 | ||
| 19.1 |
The Gabelli Utilities Fund
Fund
S000001075 · Registered fund · Jun 30, 2026
Gabelli Utilities Fund, not summed
|
386,600 | ||
| 19.2 |
The Gabelli Small Cap Growth Fund
Fund
S000001062 · Registered fund · Jun 30, 2026
Gabelli Equity Series Funds Inc, not summed
|
9,100 | ||
| 20 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
453,446 | ||
| 20.1 |
Small Cap Value Fund
Fund
S000001246 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
31,940 | ||
| 20.2 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
19,780 | ||
| 20.3 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
6,404 | ||
| 20.4 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
2,844 | ||
| 21 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
447,021 | ||
| 22 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
358,275 | ||
| 22.1 |
BNY Mellon US Small Cap Core Equity ETF
Fund
S000067262 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
|
1,421 | ||
| 23 |
|
327,056 | ||
| 24 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
315,978 | ||
| 25 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
312,589 | ||
| 26 |
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund
S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
|
281,486 | ||
| 27 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
278,778 | ||
| 28 |
VICTORY CAPITAL MANAGEMENT INC
13F
CIK 1040188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
276,060 | ||
| 28.1 |
VictoryShares US Small Mid Cap Value Momentum ETF
Fund
S000065161 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
|
117,513 | ||
| 28.2 |
Victory Market Neutral Income Fund
Fund
S000037769 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
|
98,364 | ||
| 28.3 |
VictoryShares US Small Cap High Div Volatility Wtd ETF
Fund
S000049908 · Registered fund · Jun 30, 2026
Victory Portfolios II, not summed
|
40,510 | ||
| 28.4 |
Victory Extended Market Index Fund
Fund
S000012941 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
|
4,415 | ||
| 28.5 |
VictoryShares Hedged Equity Income ETF
Fund
S000085473 · Registered fund · Dec 31, 2025
Victory Portfolios II, not summed
|
464 | ||
| 29 |
|
268,456 | ||
| 29.1 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
100,970 | ||
| 29.2 |
Nuveen Small Cap Value Fund
Fund
S000005570 · Registered fund · Jul 31, 2026
Nuveen Investment Funds, Inc., not summed
|
50,309 | ||
| 29.3 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
50,228 | ||
| 29.4 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
34,701 | ||
| 29.5 |
Nuveen Life Stock Index Fund
Fund
S000005094 · Registered fund · Jun 30, 2026
TIAA-CREF Life Funds, not summed
|
525 | ||
| 30 |
GAMCO INVESTORS, INC. ET AL
13F
CIK 807249 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
264,798 | ||
| 31 |
VANGUARD UTILITIES INDEX FUND
Fund
S000004445 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
|
262,521 | ||
| 32 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
260,050 | ||
| 32.1 |
T. Rowe Price Integrated U.S. Small-Mid Cap Core Equity Fund
Fund
S000052904 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
59,272 | ||
| 32.2 |
T. Rowe Price Extended Equity Market Index Fund
Fund
S000002090 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
6,824 | ||
| 32.3 |
T. Rowe Price Small-Cap Index Fund
Fund
S000051327 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
5,899 | ||
| 32.4 |
T. Rowe Price Total Equity Market Index Fund
Fund
S000002091 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
3,345 | ||
| 33 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
249,295 | ||
| 33.1 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
7,078 | ||
| 33.2 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
2,722 | ||
| 34 |
VANGUARD DIVIDEND APPRECIATION INDEX FUND
Fund
S000011322 · Registered fund · Jul 31, 2026
VANGUARD SPECIALIZED FUNDS, not summed
|
237,579 | ||
| 35 |
PRINCIPAL FINANCIAL GROUP INC
13F
CIK 1126328 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
233,558 | ||
| 35.1 |
SmallCap S&P 600 Index Fund
Fund
S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
|
30,932 | ||
| 35.2 |
Principal U.S. Small-Cap ETF
Fund
S000055159 · Registered fund · Jun 30, 2026
Principal Exchange-Traded Funds, not summed
|
30,371 | ||
| 35.3 |
SmallCap Value Fund II
Fund
S000007169 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
|
14,899 | ||
| 36 |
1290 VT GAMCO Small Company Value Portfolio
Fund
S000009151 · Registered fund · Jun 30, 2026
EQ Advisors Trust, not summed
|
223,500 | ||
| 37 |
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
CIK 1165408 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
210,546 | ||
| 38 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
199,684 | ||
| 38.1 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
29,585 | ||
| 38.2 |
Invesco S&P SmallCap Low Volatility ETF
Fund
S000030965 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
23,637 | ||
| 38.3 |
Invesco S&P SmallCap 600 Revenue ETF
Fund
S000064596 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
16,913 | ||
| 38.4 |
Invesco S&P SmallCap Utilities & Communication Services ETF
Fund
S000028295 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
7,235 | ||
| 38.5 |
Invesco S&P SmallCap High Dividend Low Volatility ETF
Fund
S000055539 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
6,615 | ||
| 39 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
198,040 | ||
| 40 |
Public Sector Pension Investment Board
13F
CIK 1396318 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
195,071 | ||
| 41 |
ROYAL BANK OF CANADA
13F
CIK 1000275 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
185,376 | ||
| 42 |
FEDERATED HERMES, INC.
13F
CIK 1056288 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
174,664 | ||
| 43 |
CONGRESS ASSET MANAGEMENT CO
13F
CIK 897378 · Registered investment adviser · Sep 30, 2026
|
165,683 | ||
| 44 |
VANGUARD HIGH DIVIDEND YIELD INDEX FUND
Fund
S000014011 · Registered fund · Jul 31, 2026
VANGUARD WHITEHALL FUNDS, not summed
|
153,958 | ||
| 45 |
VANGUARD S&P SMALL-CAP 600 INDEX FUND
Fund
S000030017 · Registered fund · May 31, 2026
VANGUARD ADMIRAL FUNDS, not summed
|
144,953 | ||
| 46 |
|
135,671 | ||
| 47 |
Bank & Trust Co
13F
CIK 2026082 · Unknown · Sep 30, 2026
|
117,295 | ||
| 48 |
RHUMBLINE ADVISERS
13F
CIK 1115418 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
104,092 | ||
| 49 |
|
100,662 | ||
| 50 |
Federated Hermes MDT Small Cap Core Fund
Fund
S000012972 · Registered fund · Jul 31, 2026
Federated Hermes MDT Series, not summed
|
98,912 |
31 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 524 holders
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