American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionKorea Investment CORP
Latest Disclosed Ownership80,496 shares
Latest Disclosed Value $ 10,954,701
Korea Investment CORP reports 150.02% increase in ownership of AWK / American Water Works Company, Inc.

On May 13, 2026 - Korea Investment CORP filed a 13F-HR form disclosing ownership of 80,496 shares of American Water Works Company, Inc. (MX:AWK) valued at $10,954,701 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 32,196 shares of American Water Works Company, Inc.. This represents a change in shares of 150.02% 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)
2026-05-13 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 80,496 48,300 150.02 10,955 160.75 0.0227
2026-02-13 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 32,196 -100 -0.31 4,202 -6.54 0.0083
2025-11-13 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 32,296 -21,572 -40.05 4,495 -40.01 0.0092
2025-08-13 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 53,868 11,530 27.23 7,494 19.98 0.0167
2025-05-14 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 42,338 -36,633 -46.39 6,246 -36.48 0.0151
2025-02-12 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 78,971 45,193 133.79 9,831 99.05 0.0233
2024-11-13 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 33,778 -57,548 -63.01 4,940 -58.13 0.0117
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 91,326 -9,576 -9.49 11,796 -4.35 0.0297
2024-05-14 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 100,902 -32,211 -24.20 12,331 -29.81 0.0313
2024-02-13 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 133,113 -18,839 -12.40 17,570 -6.63 0.0461
2023-11-13 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 151,952 -35,509 -18.94 18,816 -29.69 0.0554
2023-08-11 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 187,461 30,349 19.32 26,760 16.27 0.0752
2023-05-12 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 157,112 -1,102 -0.70 23,015 -4.56 0.0670
2023-02-13 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 158,214 -99,379 -38.58 24,115 -28.08 0.0758
2022-11-10 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 257,593 -2,707 -1.04 33,528 -13.42 0.1032
2022-08-12 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 260,300 -91,927 -26.10 38,725 -33.58 0.1184
2022-05-13 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 352,227 -704 -0.20 58,304 -12.53 0.1442
2022-02-09 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 352,931 14,332 4.23 66,655 16.45 0.1732
2021-11-12 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 338,599 -37,143 -9.89 57,237 -1.17 0.1707
2021-08-12 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 375,742 11,916 3.28 57,913 6.17 0.1659
2021-05-13 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 363,826 -30,036 -7.63 54,545 -9.76 0.1722
2021-02-10 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 393,862 -83,738 -17.53 60,446 -12.64 0.1816
2020-11-12 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 477,600 -18,700 -3.77 69,195 8.36 0.2445
2020-08-12 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 496,300 38,800 8.48 63,854 16.74 0.2346
2020-05-14 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 457,500 37,100 8.82 54,699 5.91 0.2401
2020-02-11 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 420,400 24,600 6.22 51,646 5.04 0.1883
2019-11-12 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 395,800 9,500 2.46 49,170 9.73 0.2079
2019-08-12 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 386,300 -43,300 -10.08 44,811 0.05 0.1927
2019-05-15 2019-03-31 13F AMERICAN WTR WKS COM 030420103 429,600 24,220 5.97 44,790 21.73 0.2016
2019-02-13 2018-12-31 13F AMERICAN WTR WKS COM 030420103 405,380 -30,361 -6.97 36,796 -4.01 0.2000
2018-11-13 2018-09-30 13F AMERICAN WTR WKS COM 030420103 435,741 -90,173 -17.15 38,332 -14.63 0.1768
2018-08-13 2018-06-30 13F AMERICAN WTR WKS COM 030420103 525,914 19,800 3.91 44,903 8.03 0.2046
2018-05-09 2018-03-31 13F AMERICAN WTR WKS COM 030420103 506,114 46,461 10.11 41,567 -1.16 0.1934
2018-02-12 2017-12-31 13F AMERICAN WTR WKS COM 030420103 459,653 24,764 5.69 42,054 19.52 0.1914
2017-10-25 2017-09-30 13F AMERICAN WTR WKS COM 030420103 434,889 -16,600 -3.68 35,187 -0.02 0.1625
2017-07-31 2017-06-30 13F AMERICAN WTR WKS COM 030420103 451,489 -82,210 -15.40 35,194 -15.21 0.1640
2017-04-25 2017-03-31 13F AMERICAN WTR WKS COM 030420103 533,699 -87,227 -14.05 41,506 -7.62 0.2059
2017-02-13 2016-12-31 13F AMERICAN WTR WKS COM 030420103 620,926 -1,090 -0.18 44,930 -3.48 0.2159
2016-11-09 2016-09-30 13F AMERICAN WTR WKS COM 030420103 622,016 53,716 9.45 46,552 -3.07 0.2481
2016-08-12 2016-06-30 13F AMERICAN WTR WKS COM 030420103 568,300 128,400 29.19 48,027 58.39 0.2860
2016-05-12 2016-03-31 13F AMERICAN WTR WKS COM 030420103 439,900 80,200 22.30 30,322 41.09 0.2217
2016-02-01 2015-12-31 13F AMERICAN WTR WKS COM 030420103 359,700 72,100 25.07 21,492 35.67 0.1497
2015-11-12 2015-09-30 13F AMERICAN WTR WKS COM 030420103 287,600 234,400 440.60 15,841 512.33 0.1261
2015-08-13 2015-06-30 13F AMERICAN WTR WKS COM 030420103 53,200 0 0.00 2,587 -10.30 0.0220
2015-05-11 2015-03-31 13F AMERICAN WTR WKS COM 030420103 53,200 4,800 9.92 2,884 11.78 0.0225
2015-02-12 2014-12-31 13F AMERICAN WTR WKS COM 030420103 48,400 -69,000 -58.77 2,580 -54.43 0.0212
2014-11-14 2014-09-30 13F AMERICAN WTR WKS COM 030420103 117,400 6,100 5.48 5,662 2.87 0.0462
2014-08-14 2014-06-30 13F AMERICAN WTR WKS COM 030420103 111,300 13,100 13.34 5,504 23.46 0.0458
2014-05-14 2014-03-31 13F AMERICAN WTR WKS COM 030420103 98,200 -206,400 -67.76 4,458 -65.37 0.0395
2014-02-06 2013-12-31 13F AMERICAN WTR WKS COM 030420103 304,600 45,600 17.61 12,872 20.39 0.1217
2013-11-07 2013-09-30 13F/A-1 AMERICAN WTR WKS COM 030420103 259,000 85,500 49.28 10,692 49.48 0.1136
2013-11-05 2013-09-30 13F AMERICAN WTR WKS COM 030420103 172,700 7,129
2013-08-08 2013-06-30 13F AMERICAN WTR WKS COM 030420103 173,500 173,500 7,153 0.0857
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.