Ticker · CUSIP 689648103

OTTR

OTTER TAIL CORP
···Share
Holders (tracked)
10
Combined shares
1,237,774
Combined value
$96.43M
Last close
$87.48
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
10102024Q12025Q4
Price is +12.3% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

20 events
  1. −3,576 shares · 2025Q4
    13F
  2. +1,361 shares · 2025Q4
    13F
  3. +134,029 shares · 2025Q4
    13F
  4. −11,773 shares · 2025Q4
    13F
  5. +16,235 shares · 2025Q4
    13F
  6. +1,797 shares · 2025Q4
    13F
  7. +35,029 shares · 2025Q4
    13F
  8. +75,005 shares · 2025Q4
    13F
  9. −6,406 shares · 2025Q4
    13F
  10. −94,612 shares · 2025Q4
    13F
  11. −154,591 shares · 2025Q3
    13F
  12. +1,492 shares · 2025Q3
    13F
  13. −346,299 shares · 2025Q3
    13F
  14. −4,358 shares · 2025Q3
    13F
  15. +113,276 shares · 2025Q3
    13F
  16. +95,286 shares · 2025Q3
    13F
  17. +1,944 shares · 2025Q3
    13F
  18. +6,406 shares · 2025Q3
    13F
  19. +68,800 shares · 2025Q3
    13F
  20. −1,042 shares · 2025Q3
    13F

Insider activity

Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
9
DateInsiderCodeSharesPriceValue
04-13WEBB THOMAS J
Director
A1,500
04-13PARTAIN NATHAN I
Director
A2,000
04-13ERICKSON JOHN D
Director
A1,500
04-13Rasche Steven P
Director
A1,900
04-13LeBeau Michael E
Director
A1,500
04-13Johnson Kathryn O
Director
A1,500
04-13Clark Christopher B
Director
A1,900
04-13Crain Jeanne H
Director
A1,500
04-13Ludford Mary E
Director
A1,500
Follow-the-investor returns
If you'd copied each holder of OTTR…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2016Q1$19.73+343.5%$3.9M
Mario Gabelli (GAMCO)2016Q1$33.70+159.6%$23.8M
Paul Tudor Jones (Tudor Investment)2022Q1$75.43+16.0%$6.6M
AQR Capital Management2016Q1$76.66+14.1%$1.4M
Izzy Englander (Millennium Mgmt)2016Q1$78.54+11.4%$12.8M
Renaissance Technologies2016Q1$79.25+10.4%$1.2M
D.E. Shaw & Co.2016Q1$79.35+10.2%$21.7M
Wellington Management2021Q4$79.39+10.2%$3.1M
Two Sigma Investments2016Q1$80.95+8.1%$23.8M
Ken Griffin (Citadel Advisors)2016Q1$81.86+6.9%$10.1M

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
12
$261.9M
2022Q2
11
$277.5M
2022Q3
12
$253K
2022Q4
10
$208.9M
2023Q1
8
$497.0M
2023Q2
10
$547.1M
2023Q3
13
$524.1M
2023Q4
9
$603.8M
2024Q1
10
$630.4M
2024Q2
12
$619.9M
2024Q3
11
$83.9M
2024Q4
11
$86.6M
2025Q1
11
$81.9M
2025Q2
12
$107.3M
2025Q3
9
$85.9M
2025Q4
10
$96.4M

Who owns OTTR

10 super-investors · 2025Q4
Tracked stake
1.24M
shares
Combined value
$96M
% of shares outstanding
shares-out unknown
Quarter action mix
New2Added4Trim3Held1
#ManagerSharesValue
1Mario Gabelli
GAMCO
272.4K$22M
2Two Sigma Investments271.7K$22M
3D.E. Shaw & Co.248.2K$20M
4Izzy Englander
Millennium Mgmt
146.5K$12M
5Ken Griffin
Citadel Advisors
115.2K$9M
6Paul Tudor Jones
Tudor Investment
75.0K$6M
7Wellington Management35.0K$3M
8AQR Capital Management15.9K$1M
9Renaissance Technologies13.3K$1M
10T. Rowe Price44.5K$4K

Recent moves

20 transactions
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