American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionMitsubishi UFJ Kokusai Asset Management Co., Ltd.
Latest Disclosed Ownership438,774 shares
Latest Disclosed Value $ 59,712,754
Mitsubishi UFJ Kokusai Asset Management Co., Ltd. reports 6.18% increase in ownership of AWK / American Water Works Company, Inc.

On May 12, 2026 - Mitsubishi UFJ Kokusai Asset Management Co., Ltd. filed a 13F-HR form disclosing ownership of 438,774 shares of American Water Works Company, Inc. (MX:AWK) valued at $59,712,754 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 413,234 shares of American Water Works Company, Inc.. This represents a change in shares of 6.18% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-12 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 438,774 25,540 6.18 59,713 10.88 0.0401
2026-02-03 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 413,234 20,014 5.09 53,853 -1.61 0.0365
2025-11-12 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 393,220 23,596 6.38 54,732 6.45 0.0394
2025-08-07 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 369,624 23,332 6.74 51,418 0.65 0.0411
2025-05-12 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 346,292 30,604 9.69 51,085 30.74 0.0470
2025-02-12 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 315,688 32,942 11.65 39,073 -5.50 0.0378
2024-11-08 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 282,746 24,740 9.59 41,349 24.08 0.0442
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 258,006 10,708 4.33 33,324 10.26 0.0406
2024-05-09 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 247,298 54,326 28.15 30,222 17.31 0.0418
2024-02-08 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 192,972 13,797 7.70 25,764 16.12 0.0454
2023-11-07 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 179,175 13,120 7.90 22,187 -6.40 0.0449
2023-08-09 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 166,055 13,809 9.07 23,704 6.29 0.0495
2023-05-08 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 152,246 22,067 16.95 22,303 11.18 0.0530
2023-02-07 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 130,179 18,022 16.07 20,061 37.42 0.0547
2022-11-01 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 112,157 9,094 8.82 14,598 -4.79 0.0470
2022-08-04 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 103,063 7,426 7.76 15,333 -3.15 0.0678
2022-05-09 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 95,637 9,213 10.66 15,831 -0.52 0.0626
2022-02-07 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 86,424 11,401 15.20 15,914 25.48 0.0633
2021-11-04 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 75,023 8,449 12.69 12,682 23.59 0.0625
2021-08-06 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 66,574 8,364 14.37 10,261 17.58 0.0559
2021-05-06 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 58,210 6,314 12.17 8,727 9.58 0.0572
2021-02-09 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 51,896 2,246 4.52 7,964 10.72 0.0616
2020-11-10 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 49,650 8,174 19.71 7,193 34.80 0.0661
2020-08-06 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 41,476 5,489 15.25 5,336 24.01 0.0610
2020-05-11 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 35,987 615 1.74 4,303 0.56 0.0665
2020-02-05 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 35,372 -12,618 -26.29 4,279 -28.23 0.0558
2019-11-12 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 47,990 -71 -0.15 5,962 6.94 0.0971
2019-08-08 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 48,061 5,063 11.77 5,575 24.36 0.0954
2019-04-26 2019-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 42,998 212 0.50 4,483 17.57 0.0923
2019-02-08 2018-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 42,786 18,269 74.52 3,813 76.77 0.0961
2018-11-13 2018-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 24,517 72 0.29 2,157 3.35 0.0443
2018-08-09 2018-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 24,445 -495 -1.98 2,087 1.90 0.0462
2018-05-02 2018-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 24,940 -2,578 -9.37 2,048 -15.86 0.0475
2018-02-06 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 27,518 38 0.14 2,434 9.49 0.0528
2017-11-01 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 27,480 1,554 5.99 2,223 10.00 0.0523
2017-08-02 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 25,926 -3,226 -11.07 2,021 -10.85 0.0496
2017-05-01 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 29,152 1,121 4.00 2,267 11.95 0.0517
2017-02-01 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 28,031 99 0.35 2,025 -3.11 0.0493
2016-10-28 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 27,932 961 3.56 2,090 -8.29 0.0519
2016-08-02 2016-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 26,971 421 1.59 2,279 24.54 0.0595
2016-05-02 2016-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 26,550 3,403 14.70 1,830 32.32 0.0495
2016-02-10 2015-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 23,147 1,980 9.35 1,383 18.61 0.0398
2015-11-06 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 21,167 -636 -2.92 1,166 10.00 0.0368
2015-08-06 2015-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 21,803 -1,033 -4.52 1,060 -14.38 0.0325
2015-04-30 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 22,836 -1,359 -5.62 1,238 -5.13 0.0366
2015-02-09 2014-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 24,195 -3,338 -12.12 1,305 -1.73 0.0403
2014-10-28 2014-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 27,533 -2,339 -7.83 1,328 -10.09 0.0399
2014-08-05 2014-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 29,872 -2,225 -6.93 1,477 1.37 0.0380
2014-05-07 2014-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 32,097 -1,543 -4.59 1,457 4.44 0.0388
2014-02-10 2013-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 33,640 -4,063 -10.78 1,395 -10.35 0.0400
2013-11-12 2013-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 37,703 -2,697 -6.68 1,556 -6.60 0.0406
2013-08-12 2013-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 40,400 40,400 1,666 0.0474
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.