Otter Tail Corporation
US ˙ NasdaqGS ˙ US6896481032

SecurityOTTR / Otter Tail Corporation
InstitutionColdstream Capital Management Inc
Latest Disclosed Ownership5,983 shares
Latest Disclosed Value $ 525,135
Coldstream Capital Management Inc reports 2.17% increase in ownership of OTTR / Otter Tail Corporation

On May 8, 2026 - Coldstream Capital Management Inc filed a 13F-HR form disclosing ownership of 5,983 shares of Otter Tail Corporation (US:OTTR) valued at $525,128 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 5,856 shares of Otter Tail Corporation. This represents a change in shares of 2.17% during the quarter. The current value of the position is $513,162 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)
2026-05-08 2026-03-31 13F OTTER TAIL COM 689648103 5,983 127 2.17 525 10.99 0.0056
2026-02-09 2025-12-31 13F OTTER TAIL COM 689648103 5,856 -314 -5.09 473 -6.34 0.0061
2025-11-19 2025-09-30 13F OTTER TAIL COM 689648103 6,170 -20 -0.32 506 5.87 0.0068
2025-08-12 2025-06-30 13F OTTER TAIL COM 689648103 6,190 -446 -6.72 477 -10.51 0.0078
2025-05-13 2025-03-31 13F OTTER TAIL COM 689648103 6,636 517 8.45 533 18.18 0.0114
2025-02-14 2024-12-31 13F OTTER TAIL COM 689648103 6,119 -496 -7.50 452 -12.77 0.0096
2024-11-18 2024-09-30 13F/A-1 OTTER TAIL COM 689648103 6,615 -2 -0.03 517 -10.71 0.0112
2024-11-18 2024-09-30 13F OTTER TAIL COM 689648103 6,615 517
2024-08-07 2024-06-30 13F OTTER TAIL COM 689648103 6,617 214 3.34 580 4.70 0.0141
2024-05-14 2024-03-31 13F OTTER TAIL COM 689648103 6,403 0 0.00 553 1.65 0.0140
2024-02-09 2023-12-31 13F OTTER TAIL COM 689648103 6,403 -118 -1.81 544 9.90 0.0152
2023-11-02 2023-09-30 13F OTTER TAIL COM 689648103 6,521 8 0.12 495 -3.70 0.0162
2023-08-03 2023-06-30 13F OTTER TAIL COM 689648103 6,513 424 6.96 514 16.82 0.0163
2023-05-15 2023-03-31 13F OTTER TAIL COM 689648103 6,089 56 0.93 440 24.29 0.0148
2023-01-10 2022-12-31 13F OTTER TAIL COM 689648103 6,033 87 1.46 354 -11.50 0.0130
2022-08-08 2022-06-30 13F/A-1 OTTER TAIL COM 689648103 5,946 -31 -0.52 400 6.95 0.0156
2022-08-08 2022-06-30 13F OTTER TAIL COM 689648103 5,833 -144 392 0.0167
2022-05-11 2022-03-31 13F OTTER TAIL COM 689648103 5,977 5,977 374 0.0129
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.