American Water Works Company, Inc.
AT ˙ WBAG ˙ US0304201033
€ 107,60 ↑3,90 (3,76%)
2026-06-03
AKTIENPREIS
SecurityAT:AWK / American Water Works Company, Inc.
InstitutionMairs & Power Inc
Latest Disclosed Ownership5,025 shares
Latest Disclosed Value $ 683,852
Mairs & Power Inc reports 0.42% decrease in ownership of AWK / American Water Works Company, Inc.

On May 13, 2026 - Mairs & Power Inc filed a 13F-HR form disclosing ownership of 5,025 shares of American Water Works Company, Inc. (AT:AWK) valued at $596,719 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,046 shares of American Water Works Company, Inc.. This represents a change in shares of -0.42% during the quarter. The current value of the position is $540,690 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 AMERICAN WTR WKS CO INC COM 030420103 5,025 -21 -0.42 684 3.80 0.0070
2026-02-17 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 5,046 -138 -2.66 659 -8.74 0.0063
2025-11-14 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 5,184 -37 -0.71 722 -0.69 0.0068
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 5,221 112 2.19 726 -3.59 0.0072
2025-05-15 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 5,109 -224 -4.20 754 13.57 0.0078
2025-02-14 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 5,333 0 0.00 664 -14.89 0.0064
2024-11-14 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 5,333 333 6.66 780 20.78 0.0073
2024-08-14 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 5,000 0 0.00 646 5.56 0.0062
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 5,000 0 0.00 611 -7.28 0.0059
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 5,000 0 0.00 660 6.46 0.0070
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 5,000 -440 -8.09 619 -20.23 0.0073
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 5,440 0 0.00 777 -2.51 0.0084
2023-05-15 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 5,440 414 8.24 797 3.92 0.0092
2023-02-14 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 5,026 0 0.00 766 17.13 0.0092
2022-11-14 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 5,026 5,026 654 0.0083
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.