Otter Tail Corporation
US ˙ NasdaqGS ˙ US6896481032

SecurityOTTR / Otter Tail Corporation
InstitutionVerition Fund Management LLC
Latest Disclosed Ownership3,928 shares
Latest Disclosed Value $ 344,761
Verition Fund Management LLC reports 35.61% decrease in ownership of OTTR / Otter Tail Corporation

On May 15, 2026 - Verition Fund Management LLC filed a 13F-HR form disclosing ownership of 3,928 shares of Otter Tail Corporation (US:OTTR) valued at $344,761 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,100 shares of Otter Tail Corporation. This represents a change in shares of -35.61% during the quarter. The current value of the position is $336,905 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 3,928 -2,172 -35.61 345 -30.08 0.0022
2026-02-13 2025-12-31 13F OTTER TAIL COM 689648103 6,100 -16,071 -72.49 493 -72.92 0.0019
2025-11-14 2025-09-30 13F OTTER TAIL COM 689648103 22,171 -5,084 -18.65 1,817 -13.52 0.0075
2025-08-14 2025-06-30 13F OTTER TAIL COM 689648103 27,255 10,119 59.05 2,101 52.58 0.0094
2025-05-15 2025-03-31 13F OTTER TAIL COM 689648103 17,136 -15,992 -48.27 1,377 -43.70 0.0064
2025-02-14 2024-12-31 13F OTTER TAIL COM 689648103 33,128 28,886 680.95 2,446 638.97 0.0097
2024-11-14 2024-09-30 13F OTTER TAIL COM 689648103 4,242 -121 -2.77 332 -13.35 0.0017
2024-08-14 2024-06-30 13F OTTER TAIL COM 689648103 4,363 4,363 382 0.0021
2024-02-14 2023-12-31 13F OTTER TAIL COM 689648103 0 -2,813 -100.00 0 -100.00
2023-11-14 2023-09-30 13F OTTER TAIL COM 689648103 2,813 2,813 214 0.0025
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.