American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionLa Banque Postale Asset Management SA
Latest Disclosed Ownership99,194 shares
Latest Disclosed Value $ 13,499,312
La Banque Postale Asset Management SA reports 91.05% increase in ownership of AWK / American Water Works Company, Inc.

On April 27, 2026 - La Banque Postale Asset Management SA filed a 13F-HR form disclosing ownership of 99,194 shares of American Water Works Company, Inc. (MX:AWK) valued at $13,499,312 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 51,921 shares of American Water Works Company, Inc.. This represents a change in shares of 91.05% 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)
2026-04-27 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 99,194 47,273 91.05 13,499 99.25 0.1301
2026-01-26 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 51,921 31,988 160.48 6,776 144.23 0.0786
2025-10-31 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 19,933 -3,901 -16.37 2,774 -16.32 0.0341
2025-07-18 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 23,834 0 0.00 3,316 -5.69 0.0467
2025-04-30 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 23,834 -64,586 -73.04 3,516 -68.07 0.0543
2025-02-10 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 88,420 -19,794 -18.29 11,007 -30.45 0.1487
2024-11-12 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 108,214 108,214 15,825 0.2379
2024-05-16 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 0 -191,706 -100.00 0 -100.00
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 191,706 15,780 8.97 25,303 16.15 0.5576
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 175,926 2,012 1.16 21,785 -12.25 0.4839
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 173,914 -3,884 -2.18 24,826 -4.68 0.5870
2023-05-15 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 177,798 17,741 11.08 26,046 6.76 0.6620
2023-05-15 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 160,057 160,057 24,396 0.6977
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.