American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionHorizon Investments, LLC
Latest Disclosed Ownership7,053 shares
Latest Disclosed Value $ 953,001
Horizon Investments, LLC reports 1.51% increase in ownership of AWK / American Water Works Company, Inc.

On May 14, 2026 - Horizon Investments, LLC filed a 13F-HR form disclosing ownership of 7,053 shares of American Water Works Company, Inc. (MX:AWK) valued at $953,001 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 6,948 shares of American Water Works Company, Inc.. This represents a change in shares of 1.51% 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)
2026-05-14 2026-03-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 7,053 105 1.51 953 5.19 0.0091
2026-02-02 2025-12-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 6,948 505 7.84 907 1.12 0.0115
2025-11-14 2025-09-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 6,443 300 4.88 897 5.54 0.0118
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 6,143 3,344 119.47 850 107.07 0.0135
2025-05-13 2025-03-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,799 134 5.03 410 24.62 0.0122
2025-02-10 2024-12-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,665 21 0.79 330 -14.32 0.0095
2024-11-13 2024-09-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,644 -125 -4.51 384 7.56 0.0102
2024-08-09 2024-06-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,769 33 1.21 358 7.53 0.0099
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,736 57 2.13 332 -5.41 0.0087
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,679 44 1.67 352 8.33 0.0098
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,635 30 1.15 324 -12.43 0.0099
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,605 359 15.98 370 13.15 0.0106
2023-05-15 2023-03-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,246 -773 -25.60 327 0.0097
2023-02-14 2022-12-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 3,019 -11,155 -78.70 0 -100.00 0.0129
2022-11-14 2022-09-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 14,174 12,527 760.60 1,836 652.46 0.0564
2022-08-12 2022-06-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 1,647 1,647 244 0.0077
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 0 -16,540 -100.00 0 -100.00
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 16,540 16,540 2,786 0.0729
2019-11-14 2019-09-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 0 -6,734 -100.00 0 -100.00
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 6,734 -7,189 -51.63 781 -45.95 0.0217
2019-05-16 2019-03-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 13,923 -3,893 -21.85 1,445 -10.19 0.0515
2019-02-13 2018-12-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 17,816 1,486 9.10 1,609 12.60 0.0813
2018-11-14 2018-09-30 13F AMERICAN WTR WKS CO INC NEW COM 030420103 16,330 16,330 1,429 0.0479
2018-05-14 2018-03-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 0 -2,819 -100.00 0 -100.00
2018-02-14 2017-12-31 13F/A-1 AMERICAN WTR WKS CO INC NEW COM 030420103 2,819 2,819 215 0.0134
2018-02-13 2017-12-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 2,819 2,819 215
2017-05-12 2017-03-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 0 -3,409 -100.00 0 -100.00
2017-02-09 2016-12-31 13F AMERICAN WTR WKS CO INC NEW COM 030420103 3,409 3,409 247 0.0170
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.