American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionWorldquant Millennium Advisors Llc
Latest Disclosed Ownership61,659 shares
Latest Disclosed Value $ 8,391,173
Worldquant Millennium Advisors Llc reports 24.41% increase in ownership of AWK / American Water Works Company, Inc.

On May 15, 2026 - Worldquant Millennium Advisors Llc filed a 13F-HR form disclosing ownership of 61,659 shares of American Water Works Company, Inc. (MX:AWK) valued at $8,391,173 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 49,560 shares of American Water Works Company, Inc.. This represents a change in shares of 24.41% 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)
2026-05-15 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 61,659 12,099 24.41 8,391 29.75 0.0324
2026-02-17 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 49,560 40,513 447.81 6,468 413.66 0.0251
2025-11-14 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 9,047 0 0.00 1,259 0.08 0.0054
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 9,047 -4,591 -33.66 1,259 -37.44 0.0063
2025-05-15 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 13,638 -37,200 -73.17 2,012 -68.22 0.0127
2025-02-14 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 50,838 7,193 16.48 6,329 -0.85 0.0410
2024-11-14 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 43,645 2,703 6.60 6,383 20.69 0.0467
2024-08-14 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 40,942 39,304 2,399.51 5,288 2,544.00 0.0482
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,638 0 0.00 200 -7.41 0.0025
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,638 1,638 216 0.0030
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 0 -12,303 -100.00 0 -100.00
2021-08-16 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 12,303 0 0.00 1,896 2.82 0.0419
2021-05-17 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 12,303 0 0.00 1,844 -2.33 0.0392
2021-02-16 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 12,303 0 0.00 1,888 5.95 0.0413
2020-11-16 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 12,303 0 0.00 1,782 12.57 0.0422
2020-08-14 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 12,303 12,303 1,583 0.0364
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.