水獺尾巴公司
US ˙ NasdaqGS ˙ US6896481032

SecurityOTTR / Otter Tail Corporation
InstitutionUBS Group AG
Latest Disclosed Ownership156,553 shares
Latest Disclosed Value $ 13,740,657
UBS Group AG ownership in OTTR / Otter Tail Corporation

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 156,553 shares of Otter Tail Corporation (US:OTTR) valued at $13,740,657 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 95,588 shares of Otter Tail Corporation. This represents a change in shares of 63.78% during the quarter. The current value of the position is $13,537,138 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (OTTR) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

OTTR / Otter Tail Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-05 2026-03-31 13F OTTER TAIL COM 689648103 156,553 60,965 63.78 13,741 77.89 0.0004
2026-01-29 2025-12-31 13F OTTER TAIL COM 689648103 95,588 -52,559 -35.48 7,724 -36.39 0.0013
2025-11-13 2025-09-30 13F OTTER TAIL COM 689648103 148,147 65,486 79.22 12,144 90.57 0.0019
2025-08-14 2025-06-30 13F OTTER TAIL COM 689648103 82,661 -17,628 -17.58 6,372 -20.94 0.0011
2025-05-13 2025-03-31 13F OTTER TAIL COM 689648103 100,289 -162,028 -61.77 8,060 -58.39 0.0015
2025-02-14 2024-12-31 13F OTTER TAIL COM 689648103 262,317 182,697 229.46 19,369 211.25 0.0036
2024-11-14 2024-09-30 13F OTTER TAIL COM 689648103 79,620 26,539 50.00 6,223 33.86 0.0014
2024-08-14 2024-06-30 13F OTTER TAIL COM 689648103 53,081 -7,068 -11.75 4,649 -10.53 0.0011
2024-05-13 2024-03-31 13F OTTER TAIL COM 689648103 60,149 -3,761 -5.88 5,197 -4.31 0.0013
2024-02-09 2023-12-31 13F OTTER TAIL COM 689648103 63,910 23,044 56.39 5,430 75.05 0.0016
2023-11-09 2023-09-30 13F OTTER TAIL COM 689648103 40,866 -13,117 -24.30 3,103 -27.22 0.0011
2023-08-11 2023-06-30 13F OTTER TAIL COM 689648103 53,983 7,474 16.07 4,262 26.81 0.0014
2023-05-12 2023-03-31 13F OTTER TAIL COM 689648103 46,509 920 2.02 3,361 25.60 0.0012
2023-02-08 2022-12-31 13F OTTER TAIL COM 689648103 45,589 10,303 29.20 2,677 23.26 0.0010
2022-11-10 2022-09-30 13F OTTER TAIL COM 689648103 35,286 1,991 5.98 2,171 -2.86 0.0010
2022-08-10 2022-06-30 13F OTTER TAIL COM 689648103 33,295 -9,448 -22.10 2,235 -16.32 0.0009
2022-05-16 2022-03-31 13F OTTER TAIL COM 689648103 42,743 -11,261 -20.85 2,671 -30.73 0.0009
2022-02-14 2021-12-31 13F OTTER TAIL COM 689648103 54,004 17,933 49.72 3,856 90.99 0.0011
2021-11-15 2021-09-30 13F OTTER TAIL COM 689648103 36,071 1,030 2.94 2,019 18.00 0.0006
2021-08-13 2021-06-30 13F OTTER TAIL COM 689648103 35,041 -17,775 -33.65 1,711 -29.82 0.0006
2021-05-12 2021-03-31 13F OTTER TAIL COM 689648103 52,816 4,027 8.25 2,438 17.27 0.0008
2021-02-11 2020-12-31 13F OTTER TAIL COM 689648103 48,789 -189 -0.39 2,079 17.39 0.0007
2020-11-12 2020-09-30 13F OTTER TAIL COM 689648103 48,978 -8,980 -15.49 1,771 -21.22 0.0007
2020-07-31 2020-06-30 13F OTTER TAIL COM 689648103 57,958 -5,213 -8.25 2,248 -19.94 0.0009
2020-05-01 2020-03-31 13F OTTER TAIL COM 689648103 63,171 -23,063 -26.74 2,808 -36.51 0.0013
2020-02-14 2019-12-31 13F OTTER TAIL COM 689648103 86,234 20,306 30.80 4,423 24.84 0.0015
2019-11-14 2019-09-30 13F OTTER TAIL COM 689648103 65,928 21,719 49.13 3,543 51.73 0.0014
2019-08-14 2019-06-30 13F OTTER TAIL COM 689648103 44,209 4,117 10.27 2,335 16.87 0.0009
2019-05-14 2019-03-31 13F OTTER TAIL COM 689648103 40,092 -9,514 -19.18 1,998 -18.88 0.0008
2019-02-14 2018-12-31 13F OTTER TAIL COM 689648103 49,606 5,730 13.06 2,463 17.17 0.0011
2018-11-14 2018-09-30 13F OTTER TAIL COM 689648103 43,876 3,982 9.98 2,102 10.69 0.0008
2018-08-14 2018-06-30 13F OTTER TAIL COM 689648103 39,894 8,802 28.31 1,899 40.88 0.0008
2018-05-15 2018-03-31 13F OTTER TAIL COM 689648103 31,092 -19,927 -39.06 1,348 -40.56 0.0006
2018-02-14 2017-12-31 13F OTTER TAIL COM 689648103 51,019 2,478 5.10 2,268 7.79 0.0009
2017-11-14 2017-09-30 13F OTTER TAIL COM 689648103 48,541 2,099 4.52 2,104 14.41 0.0010
2017-11-14 2017-06-30 13F/A-1 OTTER TAIL COM 689648103 46,442 1,050 2.31 1,839 6.86 0.0010
2017-08-14 2017-06-30 13F OTTER TAIL COM 689648103 46,442 1,050 1,839
2017-11-14 2017-03-31 13F/A-1 OTTER TAIL COM 689648103 45,392 -17,784 -28.15 1,721 -33.22 0.0009
2017-05-12 2017-03-31 13F OTTER TAIL COM 689648103 45,392 -17,784 1,721
2017-02-14 2016-12-31 13F OTTER TAIL COM 689648103 63,176 2,983 4.96 2,577 23.78 0.0014
2016-11-14 2016-09-30 13F OTTER TAIL COM 689648103 60,193 2,967 5.18 2,082 8.66 0.0012
2016-08-12 2016-06-30 13F OTTER TAIL COM 689648103 57,226 3,457 6.43 1,916 20.28 0.0012
2016-05-12 2016-03-31 13F OTTER TAIL COM 689648103 53,769 13,342 33.00 1,593 47.91 0.0011
2016-02-16 2015-12-31 13F OTTER TAIL COM 689648103 40,427 8,676 27.33 1,077 30.23 0.0007
2015-11-13 2015-09-30 13F OTTER TAIL COM 689648103 31,751 3,492 12.36 827 9.97 0.0006
2015-08-14 2015-06-30 13F OTTER TAIL COM 689648103 28,259 -4,177 -12.88 752 -27.97 0.0005
2015-05-14 2015-03-31 13F OTTER TAIL COM 689648103 32,436 1,231 3.94 1,044 8.07 0.0007
2015-02-17 2014-12-31 13F OTTER TAIL COM 689648103 31,205 31,205 966 0.0007
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2015-05-14 2015-03-31 13F OTTER TAIL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-17 2014-12-31 13F OTTER TAIL COM Call 100 3 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.