Otter Tail Corporation
US ˙ NasdaqGS ˙ US6896481032

SecurityOTTR / Otter Tail Corporation
InstitutionDynamic Technology Lab Private Ltd
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Dynamic Technology Lab Private Ltd closes position in OTTR / Otter Tail Corporation

On May 15, 2026 - Dynamic Technology Lab Private Ltd filed a 13F-HR form disclosing ownership of 0 shares of Otter Tail Corporation (US:OTTR) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,410 shares of Otter Tail Corporation. The current value of the position is $0 USD.

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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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)
2026-05-15 2026-03-31 13F OTTER TAIL COM 689648103 0 -100.00 0
2026-02-13 2025-12-31 13F OTTER TAIL COM 689648103 4,410 -9,191 -67.58 356 -68.07
2025-11-13 2025-09-30 13F OTTER TAIL COM 689648103 13,601 13,601 1,115 0.1889
2025-08-12 2025-06-30 13F OTTER TAIL COM 689648103 0 -9,880 -100.00 0 -100.00
2025-05-16 2025-03-31 13F OTTER TAIL COM 689648103 9,880 5,209 111.52 794 130.14 0.1149
2025-02-13 2024-12-31 13F OTTER TAIL COM 689648103 4,671 -7,540 -61.75 345 -63.87 0.0555
2024-11-13 2024-09-30 13F OTTER TAIL COM 689648103 12,211 8,624 240.42 955 0.1011
2024-08-15 2024-06-30 13F OTTER TAIL COM 689648103 3,587 -2,026 -36.09 0 0.0356
2024-05-14 2024-03-31 13F OTTER TAIL COM 689648103 5,613 5,613 0 0.0518
2023-05-12 2023-03-31 13F OTTER TAIL COM 689648103 0 -13,980 -100.00 0 -100.00
2023-02-14 2022-12-31 13F OTTER TAIL COM 689648103 13,980 -12,996 -48.18 821 -50.54 0.0821
2022-11-14 2022-09-30 13F OTTER TAIL COM 689648103 26,976 26,976 1,660 0.1637
2022-08-12 2022-06-30 13F OTTER TAIL COM 689648103 0 -8,090 -100.00 0 -100.00
2022-05-16 2022-03-31 13F OTTER TAIL COM 689648103 8,090 2,660 48.99 506 30.41 0.0597
2022-02-14 2021-12-31 13F OTTER TAIL COM 689648103 5,430 5,430 388 0.0430
2021-11-15 2021-09-30 13F OTTER TAIL COM 689648103 0 -8,640 -100.00 0 -100.00
2021-08-13 2021-06-30 13F OTTER TAIL COM 689648103 8,640 8,640 422 0.0424
2018-08-14 2018-06-30 13F OTTER TAIL COM 689648103 0 -6,061 -100.00 0 -100.00
2018-05-14 2018-03-31 13F OTTER TAIL COM 689648103 6,061 -3,186 -34.45 264 -35.77 0.0322
2018-02-09 2017-12-31 13F OTTER TAIL COM 689648103 9,247 9,247 52.57 411 55.68 0.0729
2017-11-08 2017-09-30 13F OTTER TAIL COM 689648103 0 -5,981 -100.00 0 -100.00
2017-08-17 2017-06-30 13F OTTER TAIL COM 689648103 5,981 -7,690 -56.25 237 -54.25 0.0447
2017-05-11 2017-03-31 13F OTTER TAIL COM 689648103 13,671 13,671 128.57 518 118.57 0.1216
2017-02-13 2016-12-31 13F OTTER TAIL COM 689648103 0 -9,553 -100.00 0 -100.00
2016-11-14 2016-09-30 13F OTTER TAIL COM 689648103 9,553 9,553 331 0.0887
2015-08-13 2015-06-30 13F OTTER TAIL COM 689648103 0 -10,912 -100.00 0 -100.00
2015-05-12 2015-03-31 13F OTTER TAIL COM 689648103 10,912 3,500 47.22 351 53.95 0.2635
2016-02-24 2014-03-31 13F/A-1 OTTER TAIL COM 689648103 7,412 7,412 228 0.2611
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.