American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership7,039 shares
Latest Disclosed Value $ 957,857
Northwestern Mutual Wealth Management Co reports 6.99% increase in ownership of AWK / American Water Works Company, Inc.

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 7,039 shares of American Water Works Company, Inc. (MX:AWK) valued at $957,857 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 6,579 shares of American Water Works Company, Inc.. This represents a change in shares of 6.99% during the quarter.

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)
2026-05-07 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 7,039 460 6.99 958 11.54 0.0006
2026-02-10 2025-12-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 6,579 -1,822 -21.69 859 -26.60 0.0005
2026-02-05 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 171,249 162,848 9,316 0.0059
2025-11-14 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 8,401 278 3.42 1,169 3.54 0.0008
2025-08-13 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 8,123 1,210 17.50 1,130 10.79 0.0008
2025-05-14 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 6,913 -1,439 -17.23 1,020 -1.92 0.0008
2025-02-11 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 8,352 -194,758 -95.89 1,040 -96.50 0.0009
2024-11-12 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 203,110 -4,245 -2.05 29,703 10.90 0.0264
2024-08-16 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 207,355 12,496 6.41 26,783 12.47 0.0264
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 194,859 187,316 2,483.31 23,814 2,293.27 0.0245
2024-02-13 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 7,543 200 2.72 996 9.46 0.0011
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 7,343 1,236 20.24 909 4.36 0.0012
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 6,107 429 7.56 872 4.81 0.0011
2023-05-15 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 5,678 1,021 21.92 832 17.21 0.0012
2023-02-21 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 4,657 -154 -3.20 710 13.26 0.0011
2022-11-14 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 4,811 -52 -1.07 626 -13.54 0.0011
2022-08-04 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 4,863 322 7.09 724 -3.60 0.0012
2022-05-09 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 4,541 1,452 47.01 751 28.82 0.0012
2022-02-03 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,089 -100 -3.14 583 7.96 0.0010
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,189 -140 -4.21 540 5.47 0.0010
2021-08-13 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,329 459 15.99 512 19.35 0.0010
2021-05-14 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,870 973 51.29 429 47.42 0.0009
2021-02-12 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,897 20 1.07 291 6.99 0.0007
2020-11-13 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,877 -981 -34.32 272 -25.89 0.0007
2020-08-14 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,858 588 25.90 367 35.42 0.0011
2020-05-08 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,270 -66 -2.83 271 -5.57 0.0010
2020-02-13 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,336 192 8.96 287 7.89 0.0010
2019-11-12 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,144 -4,780 -69.04 266 -66.87 0.0010
2019-08-12 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 6,924 -650 -8.58 803 1.65 0.0032
2019-05-10 2019-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 7,574 3,279 76.34 790 102.56 0.0035
2019-02-12 2018-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 4,295 480 12.58 390 16.07 0.0020
2018-11-01 2018-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,815 156 4.26 336 7.69 0.0017
2018-08-10 2018-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,659 902 32.72 312 38.05 0.0017
2018-05-14 2018-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,757 -230 -7.70 226 -17.22 0.0014
2018-01-31 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,987 368 14.05 273 28.77 0.0017
2017-11-07 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,619 178 7.29 212 11.58 0.0015
2017-08-10 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,441 197 8.78 190 8.57 0.0015
2017-05-09 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,244 -755 -25.18 175 -19.35 0.0016
2017-02-15 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,999 2,704 916.61 217 843.48 0.0024
2016-11-14 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 295 -1,317 -81.70 23 -83.09 0.0004
2016-08-29 2016-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,612 1,338 488.32 136 615.79 0.0019
2016-05-16 2016-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 274 68 33.01 19 58.33 0.0003
2016-02-16 2015-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 206 -546 -72.61 12 -70.73 0.0002
2015-11-16 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 752 287 61.72 41 78.26 0.0010
2015-09-30 2015-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 465 65 16.25 23 4.55 0.0006
2015-08-14 2015-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 400 22
2015-05-15 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 400 228 132.56 22 144.44 0.0006
2015-02-13 2014-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 172 -311 -64.39 9 -60.87 0.0003
2014-11-14 2014-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 483 32 7.10 23 4.55 0.0008
2014-08-05 2014-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 451 -171 -27.49 22 -24.14 0.0009
2014-05-15 2014-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 622 -334 -34.94 29 -27.50 0.0012
2014-02-14 2013-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 956 344 56.21 40 60.00 0.0018
2013-11-14 2013-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 612 221 56.52 25 56.25 0.0013
2013-08-21 2013-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 391 391 16 0.0010
2013-08-14 2013-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 480,225 19,800 0.2177
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.