American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionTwo Sigma Advisers, Lp
Latest Disclosed Ownership12,100 shares
Latest Disclosed Value $ 1,579,050
Two Sigma Advisers, Lp ownership in AWK / American Water Works Company, Inc.

On February 17, 2026 - Two Sigma Advisers, Lp filed a 13F-HR form disclosing ownership of 12,100 shares of American Water Works Company, Inc. (MX:AWK) valued at $1,579,050 USD as of December 31, 2025. The entity filed a previous 13F-HR on May 17, 2021 disclosing 0 shares of American Water Works Company, Inc..

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)
2026-02-17 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 12,100 12,100 1,579 0.0031
2021-05-17 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 0 -10,900 -100.00 0 -100.00
2021-02-16 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 10,900 -75,800 -87.43 1,673 -86.68 0.0045
2020-11-16 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 86,700 -162,800 -65.25 12,561 -60.87 0.0359
2020-09-15 2020-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 249,500 -46,400 -15.68 32,101 -9.26 0.0943
2020-08-14 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 249,500 -46,400 32,101 92,761.2288
2020-05-15 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 295,900 -198,300 -40.13 35,378 -41.73 0.1354
2020-02-14 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 494,200 258,400 109.58 60,712 107.26 0.1409
2019-11-14 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 235,800 225,000 2,083.33 29,293 2,237.83 0.0717
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 10,800 10,800 1,253 0.0031
2017-02-14 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 0 -84,891 -100.00 0 -100.00
2016-11-14 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 84,891 84,891 0.00 6,353 0.0271
2016-05-16 2016-03-31 13F American Water Works Common Stock 030420103 0 0 0 0.0000
2016-02-16 2015-12-31 13F AMERICAN WTR WKS CO INC COMMON STOCK 030420103 0 -92,778 -100.00 0 -100.00
2015-11-16 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 92,778 -150,700 -61.89 5,110 -56.84 0.0322
2016-02-09 2015-06-30 13F/A-1 AMERICAN WTR WKS CO INC COMMON STOCK 030420103 243,478 86,212 54.82 11,840 38.89 0.0911
2015-08-14 2015-06-30 13F AMERICAN WATER WORKS COMMON STOCK 030420103 243,478 11,841
2016-02-09 2015-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 157,266 83,100 112.05 8,525 115.66 0.0654
2015-05-15 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 147,366 7,989
2016-02-09 2014-12-31 13F/A-1 American Water Works Common Stock 030420103 74,166 15,100 25.56 3,953 58.37 0.0316
2015-02-17 2014-12-31 13F American Water Works Common Stock 030420103 74,166 3,954
2014-02-14 2013-12-31 13F American Water Works Common Stock 030420103 59,066 5,600 10.47 2,496 13.09 0.0241
2013-11-14 2013-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 53,466 -257,300 -82.80 2,207 -82.78 0.0263
2013-08-14 2013-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 310,766 310,766 12,813 0.1831
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.