Alerus Financial Corporation
US ˙ NasdaqCM ˙ US01446U1034

SecurityALRS / Alerus Financial Corporation
InstitutionMairs & Power Inc
Latest Disclosed Ownership79,436 shares
Latest Disclosed Value $ 1,883,428
Mairs & Power Inc ownership in ALRS / Alerus Financial Corporation

On May 13, 2026 - Mairs & Power Inc filed a 13F-HR form disclosing ownership of 79,436 shares of Alerus Financial Corporation (US:ALRS) valued at $1,883,428 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 79,436 shares of Alerus Financial Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,280,608 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)
2026-05-13 2026-03-31 13F ALERUS FINL COM 01446U103 79,436 0 0.00 1,883 5.31 0.0192
2026-02-17 2025-12-31 13F ALERUS FINL COM 01446U103 79,436 -7,387 -8.51 1,789 -6.97 0.0172
2025-11-14 2025-09-30 13F ALERUS FINL COM 01446U103 86,823 -11,044 -11.28 1,922 -9.21 0.0181
2025-08-14 2025-06-30 13F ALERUS FINL COM 01446U103 97,867 203 0.21 2,118 17.48 0.0209
2025-05-15 2025-03-31 13F ALERUS FINL COM 01446U103 97,664 -10 -0.01 1,803 -4.10 0.0188
2025-02-14 2024-12-31 13F ALERUS FINL COM 01446U103 97,674 -55 -0.06 1,879 -15.97 0.0182
2024-11-14 2024-09-30 13F ALERUS FINL COM 01446U103 97,729 -235 -0.24 2,236 16.40 0.0210
2024-08-14 2024-06-30 13F ALERUS FINL COM 01446U103 97,964 -26,330 -21.18 1,921 -29.19 0.0186
2024-05-15 2024-03-31 13F ALERUS FINL COM 01446U103 124,294 0 0.00 2,713 -2.48 0.0263
2024-02-14 2023-12-31 13F ALERUS FINL COM 01446U103 124,294 -17,025 -12.05 2,783 8.29 0.0293
2023-11-14 2023-09-30 13F ALERUS FINL COM 01446U103 141,319 120 0.08 2,569 1.22 0.0302
2023-08-14 2023-06-30 13F ALERUS FINL COM 01446U103 141,199 0 0.00 2,539 12.00 0.0276
2023-05-15 2023-03-31 13F ALERUS FINL COM 01446U103 141,199 0 0.00 2,266 -31.25 0.0261
2023-02-14 2022-12-31 13F ALERUS FINL COM 01446U103 141,199 0 0.00 3,297 5.64 0.0397
2022-11-14 2022-09-30 13F ALERUS FINL COM 01446U103 141,199 -97 -0.07 3,120 -7.25 0.0394
2022-08-15 2022-06-30 13F ALERUS FINL COM 01446U103 141,296 0 0.00 3,364 -13.85 0.0403
2022-05-16 2022-03-31 13F ALERUS FINL COM 01446U103 141,296 83,196 143.19 3,905 129.57 0.0393
2022-02-14 2021-12-31 13F ALERUS FINL COM 01446U103 58,100 58,100 1,701 0.0158
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.