American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionAqr Capital Management Llc
ManagerCliff Asness
Latest Disclosed Ownership625,928 shares
Latest Disclosed Value $ 85,182,471
Aqr Capital Management Llc reports 28.29% increase in ownership of AWK / American Water Works Company, Inc.

On May 15, 2026 - Aqr Capital Management Llc filed a 13F-HR form disclosing ownership of 625,928 shares of American Water Works Company, Inc. (MX:AWK) valued at $85,182,471 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 487,886 shares of American Water Works Company, Inc.. This represents a change in shares of 28.29% 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)
2026-05-15 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 625,928 138,042 28.29 85,182 33.79 0.0390
2026-02-17 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 487,886 -205,835 -29.67 63,669 -34.06 0.0334
2025-11-14 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 693,721 285,555 69.96 96,559 70.06 0.0619
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 408,166 208,462 104.39 56,780 92.73 0.0470
2025-05-15 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 199,704 146,792 277.43 29,460 347.24 0.0303
2025-02-14 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 52,912 38,420 265.11 6,587 215.17 0.0085
2024-11-14 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 14,492 -16,791 -53.67 2,090 -48.05 0.0029
2024-08-14 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 31,283 5,564 21.63 4,023 29.69 0.0062
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 25,719 -55,442 -68.31 3,102 -71.04 0.0053
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 81,161 -49,381 -37.83 10,712 -33.73 0.0202
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 130,542 -67,442 -34.06 16,165 -42.19 0.0334
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 197,984 -11,730 -5.59 27,963 -8.98 0.0594
2023-05-15 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 209,714 82,672 65.07 30,721 58.66 0.0674
2023-02-14 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 127,042 -21,433 -14.44 19,364 0.19 0.0441
2022-11-14 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 148,475 -31,748 -17.62 19,326 -26.38 0.0471
2022-08-15 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 180,223 -116,665 -39.30 26,251 -46.58 0.0593
2022-05-16 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 296,888 -55,023 -15.64 49,144 -25.72 0.0933
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 351,911 -17,605 -4.76 66,163 5.92 0.1199
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 369,516 13,169 3.70 62,463 13.73 0.1158
2021-08-16 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 356,347 -61,783 -14.78 54,924 -11.26 0.0950
2021-05-17 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 418,130 -94,067 -18.37 61,896 -20.44 0.1012
2021-02-16 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 512,197 41,805 8.89 77,800 14.16 0.1379
2020-11-16 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 470,392 20,067 4.46 68,151 19.99 0.1152
2020-08-17 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 450,325 -319,338 -41.49 56,799 -38.28 0.0919
2020-05-15 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 769,663 -293,129 -27.58 92,021 -29.52 0.1548
2020-02-14 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,062,792 -60,860 -5.42 130,564 -6.47 0.1484
2019-11-14 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,123,652 368,489 48.80 139,591 60.28 0.1644
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 755,163 1,060 0.14 87,093 10.77 0.0972
2019-05-14 2019-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 754,103 265,795 54.43 78,623 77.38 0.0834
2019-02-14 2018-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 488,308 33,027 7.25 44,324 10.67 0.0514
2018-11-15 2018-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 455,281 -66,308 -12.71 40,051 -10.06 0.0383
2018-11-14 2018-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 521,589 0 44,533
2018-08-14 2018-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 521,589 18,369 3.65 44,533 7.75 0.0449
2018-05-15 2018-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 503,220 46,166 10.10 41,329 -1.16 0.0446
2018-02-14 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 457,054 104,320 29.57 41,816 46.52 0.0439
2017-11-14 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 352,734 -20,669 -5.54 28,540 -1.95 0.0341
2017-08-14 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 373,403 -11,685 -3.03 29,107 -2.81 0.0385
2017-05-15 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 385,088 -215,420 -35.87 29,948 -31.08 0.0398
2017-02-14 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 600,508 92,600 18.23 43,453 14.31 0.0600
2016-11-14 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 507,908 65,050 14.69 38,012 1.57 0.0582
2016-08-15 2016-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 442,858 87,211 24.52 37,426 52.67 0.0660
2016-07-29 2016-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 355,647 74,587 26.54 24,515 45.98 0.0441
2016-05-16 2016-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 355,647 24,515
2016-02-16 2015-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 281,060 57,431 25.68 16,793 36.34 0.0294
2015-11-16 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 223,629 6,514 3.00 12,317 16.66 0.0246
2015-08-14 2015-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 217,115 -20,271 -8.54 10,558 -17.96 0.0209
2015-05-15 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 237,386 -91,752 -27.88 12,869 -26.64 0.0294
2015-04-22 2014-12-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 329,138 159,443 93.96 17,543 114.36 0.0367
2015-02-17 2014-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 329,138 17,543
2014-11-14 2014-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 169,695 31,441 22.74 8,184 19.70 0.0225
2014-08-14 2014-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 138,254 0 0.00 6,837 8.92 0.0184
2014-05-15 2014-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 138,254 -38,019 -21.57 6,277 -15.73 0.0189
2014-02-14 2013-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 176,273 32,500 22.61 7,449 25.51 0.0222
2013-11-14 2013-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 143,773 47,367 49.13 5,935 49.31 0.0209
2013-08-14 2013-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 96,406 9,225 10.58 3,975 22.80 0.0141
2013-05-29 2012-12-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 87,181 87,181 3,237 0.0139
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.