American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionClearbridge Investments, LLC
Latest Disclosed Ownership146,214 shares
Latest Disclosed Value $ 19,898,282
Clearbridge Investments, LLC reports 0.96% decrease in ownership of AWK / American Water Works Company, Inc.

On May 13, 2026 - Clearbridge Investments, LLC filed a 13F-HR form disclosing ownership of 146,214 shares of American Water Works Company, Inc. (MX:AWK) valued at $19,898,282 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 147,631 shares of American Water Works Company, Inc.. This represents a change in shares of -0.96% 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)
2026-05-13 2026-03-31 13F American Water Works COM 030420103 146,214 -1,417 -0.96 19,898 3.29 0.0156
2026-02-11 2025-12-31 13F American Water Works COM 030420103 147,631 -11,897 -7.46 19,266 -13.24 0.0154
2025-11-13 2025-09-30 13F American Water Works COM 030420103 159,528 -118,650 -42.65 22,205 -42.62 0.0167
2025-08-12 2025-06-30 13F American Water Works COM 030420103 278,178 -29,630 -9.63 38,697 -14.78 0.0314
2025-05-13 2025-03-31 13F American Water Works COM 030420103 307,808 23,789 8.38 45,408 28.42 0.0397
2025-02-12 2024-12-31 13F American Water Works COM 030420103 284,019 -39,550 -12.22 35,358 -25.28 0.0287
2024-11-12 2024-09-30 13F American Water Works COM 030420103 323,569 -33,617 -9.41 47,319 2.57 0.0372
2024-08-27 2024-06-30 13F/A-1 American Water Works COM 030420103 357,186 3,797 1.07 46,134 6.82 0.0375
2024-08-14 2024-06-30 13F American Water Works COM 030420103 357,186 3,797 46,134 0.0377
2024-05-13 2024-03-31 13F American Water Works COM 030420103 353,389 806 0.23 43,188 -7.20 0.0342
2024-02-09 2023-12-31 13F American Water Works COM 030420103 352,583 15,933 4.73 46,537 11.63 0.0400
2023-11-13 2023-09-30 13F American Water Works COM 030420103 336,650 310,214 1,173.45 41,687 1,004.88 0.0401
2023-08-11 2023-06-30 13F American Water Works COM 030420103 26,436 0 0.00 3,774 -2.56 0.0034
2023-05-12 2023-03-31 13F American Water Works COM 030420103 26,436 250 0.95 3,873 -2.98 0.0037
2023-02-10 2022-12-31 13F American Water Works COM 030420103 26,186 250 0.96 3,991 18.22 0.0039
2022-11-14 2022-09-30 13F American Water Works COM 030420103 25,936 125 0.48 3,376 -12.08 0.0034
2022-08-11 2022-06-30 13F American Water Works COM 030420103 25,811 -268 -1.03 3,840 -11.05 0.0036
2022-05-13 2022-03-31 13F American Water Works COM 030420103 26,079 -100 -0.38 4,317 -12.68 0.0032
2022-02-11 2021-12-31 13F American Water Works COM 030420103 26,179 50 0.19 4,944 11.93 0.0034
2021-11-12 2021-09-30 13F American Water Works COM 030420103 26,129 -100 -0.38 4,417 9.25 0.0031
2021-08-13 2021-06-30 13F American Water Works COM 030420103 26,229 -1,064 -3.90 4,043 -1.20 0.0028
2021-05-13 2021-03-31 13F American Water Works COM 030420103 27,293 -252 -0.91 4,092 -3.19 0.0031
2021-02-10 2020-12-31 13F American Water Works COM 030420103 27,545 -1,550 -5.33 4,227 0.28 0.0033
2020-11-12 2020-09-30 13F American Water Works COM 030420103 29,095 -500 -1.69 4,215 10.69 0.0036
2020-08-14 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 29,595 -1,134 -3.69 3,808 3.65 0.0034
2020-05-22 2020-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 30,729 -700 -2.23 3,674 -2.75 0.0040
2020-05-15 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 30,729 -700 3,674 3,982.7191
2020-02-14 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 31,429 2,257 7.74 3,778 4.25 0.0031
2019-11-14 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 29,172 34 0.12 3,624 7.22 0.0032
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 29,138 200 0.69 3,380 12.03 0.0029
2019-05-15 2019-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 28,938 -153 -0.53 3,017 14.24 0.0027
2019-02-14 2018-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 29,091 -200 -0.68 2,641 2.48 0.0027
2018-11-28 2018-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 29,291 -400 -1.35 2,577 1.66 0.0022
2018-11-14 2018-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 29,291 -400 2,577
2018-08-14 2018-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 29,691 378 1.29 2,535 5.32 0.0021
2018-05-15 2018-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 29,313 0 0.00 2,407 -10.25 0.0023
2018-02-14 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 29,313 -1,690 -5.45 2,682 6.94 0.0025
2017-11-14 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 31,003 -26,175 -45.78 2,508 -43.73 0.0024
2017-08-14 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 57,178 -570 -0.99 4,457 -0.76 0.0044
2017-06-07 2017-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 57,748 -600 -1.03 4,491 6.37 0.0045
2017-05-15 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 57,748 4,491
2017-02-14 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 58,348 -492 -0.84 4,222 -4.13 0.0046
2016-11-14 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 58,840 -3,295 -5.30 4,404 -16.13 0.0050
2016-08-15 2016-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 62,135 -28,210 -31.22 5,251 -15.67 0.0062
2016-05-16 2016-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 90,345 -48,190 -34.79 6,227 -24.77 0.0074
2016-02-16 2015-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 138,535 -3,247 -2.29 8,277 5.99 0.0096
2015-11-16 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 141,782 -2,740 -1.90 7,809 11.11 0.0093
2015-08-17 2015-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 144,522 -465 -0.32 7,028 -10.59 0.0074
2015-08-14 2015-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 144,522 7,028
2015-05-15 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 144,987 -1,380 -0.94 7,860 0.76 0.0082
2015-02-17 2014-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 146,367 -6,915 -4.51 7,801 5.52 0.0082
2014-11-14 2014-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 153,282 65 0.04 7,393 -2.43 0.0081
2014-08-14 2014-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 153,217 5,700 3.86 7,577 13.14 0.0085
2014-05-15 2014-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 147,517 563 0.38 6,697 7.84 0.0079
2014-02-14 2013-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 146,954 62,749 74.52 6,210 78.65 0.0077
2013-11-14 2013-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 84,205 11,455 15.75 3,476 15.87 0.0049
2013-08-14 2013-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 72,750 72,750 3,000 0.0046
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.