American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionAureus Asset Management, LLC
Latest Disclosed Ownership166,878 shares
Latest Disclosed Value $ 22,710,427
Aureus Asset Management, LLC ownership in AWK / American Water Works Company, Inc.

On May 13, 2026 - Aureus Asset Management, LLC filed a 13F-HR form disclosing ownership of 166,878 shares of American Water Works Company, Inc. (MX:AWK) valued at $22,710,427 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2023 disclosing 0 shares of American Water Works Company, Inc..

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 Water Works Stock 030420103 166,878 166,878 22,710 1.5128
2023-11-13 2023-09-30 13F American Water Works Stock 030420103 0 -159,162 -100.00 0 -100.00
2023-08-11 2023-06-30 13F American Water Works Stock 030420103 159,162 -24,315 -13.25 22,720 -15.47 1.7029
2023-05-12 2023-03-31 13F American Water Works Stock 030420103 183,477 -32,912 -15.21 26,877 -18.51 2.1262
2023-02-14 2022-12-31 13F American Water Works Stock 030420103 216,389 -2,190 -1.00 32,982 15.93 2.8484
2022-11-14 2022-09-30 13F American Water Works Stock 030420103 218,579 7,917 3.76 28,450 -9.22 2.4781
2022-08-15 2022-06-30 13F American Water Works Stock 030420103 210,662 1,349 0.64 31,340 -9.55 2.5290
2022-05-12 2022-03-31 13F American Water Works Stock 030420103 209,313 -5,687 -2.65 34,648 -14.67 2.3025
2022-02-14 2021-12-31 13F American Water Works Stock 030420103 215,000 -3,742 -1.71 40,605 9.81 2.5070
2021-11-12 2021-09-30 13F American Water Works Stock 030420103 218,742 4,121 1.92 36,976 11.78 2.4322
2021-08-16 2021-06-30 13F American Water Works Stock 030420103 214,621 11,027 5.42 33,080 8.38 2.1257
2021-05-14 2021-03-31 13F American Water Works Stock 030420103 203,594 11,943 6.23 30,523 3.77 2.3684
2021-02-16 2020-12-31 13F American Water Works Stock 030420103 191,651 -45 -0.02 29,413 5.91 2.4780
2020-11-13 2020-09-30 13F American Water Works Stock 030420103 191,696 7,975 4.34 27,773 17.50 2.6280
2020-08-11 2020-06-30 13F American Water Works Stock 030420103 183,721 10,871 6.29 23,637 14.38 2.5775
2020-05-14 2020-03-31 13F American Water Works Stock 030420103 172,850 1,250 0.73 20,666 -1.97 2.8663
2020-02-12 2019-12-31 13F American Water Works Stock 030420103 171,600 -440 -0.26 21,081 -1.37 2.3551
2019-11-12 2019-09-30 13F American Water Works Stock 030420103 172,040 -54,458 -24.04 21,373 -18.65 2.6602
2019-08-14 2019-06-30 13F American Water Works Stock 030420103 226,498 1,555 0.69 26,274 12.03 3.2357
2019-05-13 2019-03-31 13F American Water Works Stock 030420103 224,943 430 0.19 23,453 15.08 3.1065
2019-02-13 2018-12-31 13F American Water Works Stock 030420103 224,513 3,769 1.71 20,379 4.94 3.2038
2018-11-14 2018-09-30 13F American Water Works Stock 030420103 220,744 -745 -0.34 19,419 2.69 2.4691
2018-08-13 2018-06-30 13F American Water Works Stock 030420103 221,489 10,844 5.15 18,911 9.31 2.5987
2018-05-15 2018-03-31 13F American Water Works Stock 030420103 210,645 15,180 7.77 17,300 -3.26 2.5991
2018-02-14 2017-12-31 13F American Water Works Stock 030420103 195,465 8,062 4.30 17,883 17.94 2.7685
2017-11-13 2017-09-30 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 187,403 9,761 5.49 15,163 9.50 2.3978
2017-08-14 2017-06-30 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 177,642 9,751 5.81 13,847 8.92 2.3284
2017-05-12 2017-03-31 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 167,891 12,044 7.73 12,713 12.73 2.2065
2017-02-14 2016-12-31 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 155,847 1,953 1.27 11,277 -2.08 2.2094
2016-11-14 2016-09-30 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 153,894 -10,267 -6.25 11,517 -16.98 2.3041
2016-08-15 2016-06-30 13F/A-1 AMERICAN WTR WKS COM 030420103 164,161 -1,843 -1.11 13,873 21.24 2.9871
2016-08-15 2016-06-30 13F ALPHABET INC CAP STK CL A COM 030420103 17,075 12,013
2016-05-13 2016-03-31 13F AMERICAN WTR WKS COM 030420103 166,004 -67,049 -28.77 11,443 -17.82 2.4999
2016-02-16 2015-12-31 13F AMERICAN WTR WKS COM 030420103 233,053 66 0.03 13,925 8.51 3.1266
2015-11-13 2015-09-30 13F AMERICAN WTR WKS COM 030420103 232,987 2,701 1.17 12,833 14.59 3.1916
2015-08-12 2015-06-30 13F AMERICAN WTR WKS COM 030420103 230,286 25,216 12.30 11,199 0.74 2.3542
2015-05-13 2015-03-31 13F AMERICAN WTR WKS COM 030420103 205,070 51 0.02 11,117 1.73 2.5561
2015-02-12 2014-12-31 13F AMERICAN WTR WKS COM 030420103 205,019 -1,610 -0.78 10,928 9.65 2.6571
2014-11-14 2014-09-30 13F AMERICAN WTR WKS COM 030420103 206,629 420 0.20 9,966 -2.27 2.5007
2014-08-08 2014-06-30 13F AMERICAN WTR WKS COM 030420103 206,209 9,040 4.58 10,197 13.92 2.5491
2014-05-06 2014-03-31 13F AMERICAN WTR WKS COM 030420103 197,169 1,800 0.92 8,951 8.42 2.2994
2014-01-13 2013-12-31 13F AMERICAN WTR WKS COM 030420103 195,369 40,900 26.48 8,256 29.49 2.2357
2013-11-14 2013-09-30 13F AMERICAN WTR WKS COM 030420103 154,469 4,605 3.07 6,376 3.19 2.1808
2013-08-08 2013-06-30 13F AMERICAN WTR WKS COM 030420103 149,864 149,864 6,179 2.2116
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.