Otter Tail Corporation
US ˙ NasdaqGS ˙ US6896481032

SecurityOTTR / Otter Tail Corporation
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership66,810 shares
Latest Disclosed Value $ 5,150,382
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 5.23% decrease in ownership of OTTR / Otter Tail Corporation

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 66,810 shares of Otter Tail Corporation (US:OTTR) valued at $5,150,383 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 70,497 shares of Otter Tail Corporation. This represents a change in shares of -5.23% during the quarter. The current value of the position is $5,797,104 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)
2025-08-26 2025-06-30 NP Otter Tail EC US6896481032 66,810 -3,687 -5.23 5,150 -9.09 0.1157
2025-05-28 2025-03-31 NP Otter Tail EC US6896481032 70,497 748 1.07 5,666 10.00 0.1359
2025-02-25 2024-12-31 NP Otter Tail EC US6896481032 69,749 -11,630 -14.29 5,150 -19.03 0.1125
2024-11-26 2024-09-30 NP Otter Tail EC US6896481032 81,379 3,076 3.93 6,361 -7.26 0.1203
2024-08-26 2024-06-30 NP Otter Tail EC US6896481032 78,303 5,914 8.17 6,859 9.66 0.1397
2024-05-28 2024-03-31 NP Otter Tail EC US6896481032 72,389 -2,843 -3.78 6,254 -2.16 0.1305
2024-02-26 2023-12-31 NP Otter Tail EC US6896481032 75,232 5,170 7.38 6,392 20.17 0.1364
2023-11-28 2023-09-30 NP Otter Tail EC US6896481032 70,062 -1,021 -1.44 5,319 -5.22 0.1388
2023-08-25 2023-06-30 NP Otter Tail EC US6896481032 71,083 5,535 8.44 5,613 18.47 0.1331
2023-05-26 2023-03-31 NP Otter Tail EC US6896481032 65,548 646 1.00 4,737 24.33 0.1261
2023-02-24 2022-12-31 NP Otter Tail EC US6896481032 64,902 151 0.23 3,810 -4.34 0.1048
2022-11-25 2022-09-30 NP Otter Tail EC US6896481032 64,751 1,200 1.89 3,983 -6.63 0.1141
2022-08-25 2022-06-30 NP Otter Tail EC US6896481032 63,551 -375 -0.59 4,266 6.78 0.1178
2022-05-26 2022-03-31 NP Otter Tail EC US6896481032 63,926 1,701 2.73 3,995 -10.10 0.0931
2022-02-25 2021-12-31 NP Otter Tail EC US6896481032 62,225 644 1.05 4,444 28.96 0.0964
2021-11-24 2021-09-30 NP Otter Tail EC US6896481032 61,581 0 0.00 3,447 14.68 0.0759
2021-08-26 2021-06-30 NP Otter Tail EC US6896481032 61,581 0 0.00 3,006 5.70 0.0645
2021-05-27 2021-03-31 NP Otter Tail EC US6896481032 61,581 -998 -1.59 2,843 6.64 0.0645
2021-02-25 2020-12-31 NP Otter Tail EC US6896481032 62,579 -5,019 -7.42 2,666 9.04 0.0683
2020-11-25 2020-09-30 NP Otter Tail EC US6896481032 67,598 0 0.00 2,445 -6.75 0.0785
2020-08-27 2020-06-30 NP Otter Tail EC US6896481032 67,598 2,968 4.59 2,622 -8.74 0.0857
2020-06-01 2020-03-31 NP Otter Tail EC US6896481032 64,630 3,170 5.16 2,873 -8.85 0.1175
2020-02-27 2019-12-31 NP Otter Tail EC 689648103 61,460 1,616 2.70 3,152 -1.99 0.0948
2019-11-27 2019-09-30 NP Otter Tail EC US6896481032 59,844 59,844 3,217 0.1063
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.