American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership620,442 shares
Latest Disclosed Value $ 80,962,469
Sei Investments Co reports 0.96% increase in ownership of AWK / American Water Works Company, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 620,442 shares of American Water Works Company, Inc. (MX:AWK) valued at $80,962,469 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 614,561 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.

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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)
2026-02-13 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 620,442 5,881 0.96 80,962 -5.36 0.0799
2025-11-13 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 614,561 36,935 6.39 85,546 6.46 0.0920
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 577,626 43,806 8.21 80,357 2.04 0.0931
2025-05-14 2025-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 533,820 -11,944 -2.19 78,752 15.91 0.1014
2025-05-13 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 552,857 7,093 69,654 0.0758
2025-02-11 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 545,764 29,041 5.62 67,942 -10.09 0.0873
2024-11-12 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 516,723 81,119 18.62 75,563 34.30 0.0981
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 435,604 291,315 201.90 56,264 219.07 0.0797
2024-05-07 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 144,289 5,173 3.72 17,634 -3.96 0.0258
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 139,116 2,290 1.67 18,363 8.37 0.0295
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 136,826 18,076 15.22 16,944 -0.04 0.0304
2023-08-11 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 118,750 4,651 4.08 16,952 1.42 0.0296
2023-05-12 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 114,099 76,089 200.18 16,715 188.52 0.0310
2023-02-10 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 38,010 -48,942 -56.29 5,793 -48.81 0.0129
2022-11-14 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 86,952 -11,276 -11.48 11,317 -22.34 0.0252
2022-08-15 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 98,228 28,804 41.49 14,573 26.34 0.0315
2022-05-13 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 69,424 -12,097 -14.84 11,535 -25.23 0.0232
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 81,521 -2,594 -3.08 15,428 8.40 0.0289
2021-11-12 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 84,115 -30,256 -26.45 14,232 -18.79 0.0299
2021-08-06 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 114,371 15,742 15.96 17,526 18.54 0.0389
2021-05-12 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 98,629 3,254 3.41 14,785 1.02 0.0373
2021-02-08 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 95,375 -5,701 -5.64 14,636 -0.06 0.0378
2020-12-04 2020-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 101,076 16,338 19.28 14,645 34.33 0.0424
2020-11-06 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 103,005 18,267 14,924 35,933.6738
2020-08-17 2020-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 84,738 -22,159 -20.73 10,902 -14.69 0.0338
2020-08-11 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 97,618 -9,279 12,003 32,558.7764
2020-05-14 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 106,897 11,068 11.55 12,780 8.56 0.0469
2020-02-06 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 95,829 -8,856 -8.46 11,772 -9.48 0.0351
2019-11-12 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 104,685 -1,630 -1.53 13,005 5.45 0.0333
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 106,315 -49,538 -31.79 12,333 -24.10 0.0403
2019-05-15 2019-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 155,853 41,739 36.58 16,249 61.86 0.0546
2019-02-13 2018-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 114,114 0 0.00 10,039 0.00 0.0357
2018-11-08 2018-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 114,114 -15,585 -12.02 10,039 -9.35 0.0364
2018-08-03 2018-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 129,699 67,229 107.62 11,074 115.87 0.0376
2018-05-11 2018-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 62,470 -107,870 -63.33 5,130 -70.58 0.0197
2018-02-08 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 170,340 32,353 23.45 17,436 56.25 0.0605
2017-11-06 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 137,987 -11,068 -7.43 11,159 -3.97 0.0397
2017-07-31 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 149,055 24,419 19.59 11,620 19.88 0.0463
2017-05-05 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 124,636 13,805 12.46 9,693 20.80 0.0425
2017-02-02 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 110,831 26,184 30.93 8,024 26.66 0.0389
2016-11-04 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 84,647 40,627 92.29 6,335 70.30 0.0322
2016-08-11 2016-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 44,020 -9,644 -17.97 3,720 0.57 0.0223
2016-05-10 2016-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 53,664 119 0.22 3,699 15.63 0.0230
2016-02-03 2015-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 53,545 -8,444 -13.62 3,199 -6.33 0.0195
2015-11-02 2015-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 61,989 -3,318 -5.08 3,415 7.53 0.0313
2015-10-30 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 61,989 3,415
2015-08-07 2015-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 65,307 15,182 30.29 3,176 17.02 0.0287
2015-08-04 2015-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 65,307 15,182 3,176 0.0287
2015-05-14 2015-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 50,125 7,939 18.82 2,714 20.94 0.0236
2015-05-01 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 50,125 2,714
2015-02-10 2014-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 42,186 42,186 2,244 0.0198
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.