American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionWells Fargo & Company/mn
Latest Disclosed Ownership1,320,145 shares
Latest Disclosed Value $ 179,658,453
Wells Fargo & Company/mn ownership in AWK / American Water Works Company, Inc.

On May 11, 2026 - Wells Fargo & Company/mn filed a 13F-HR form disclosing ownership of 1,320,145 shares of American Water Works Company, Inc. (MX:AWK) valued at $179,658,453 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,367,952 shares of American Water Works Company, Inc.. This represents a change in shares of -3.49% during the quarter.

Wells Fargo & Company/mn has a history of taking positions in derivatives of the underlying security (AWK) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:AWK / American Water Works Company, Inc. Historical Put/Call Ratio
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)
2026-05-11 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,320,145 -47,807 -3.49 179,658 0.64 0.0185
2026-02-13 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,367,952 -46,439 -3.28 178,518 -9.32 0.0325
2025-11-13 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,414,391 -5,489 -0.39 196,869 -0.33 0.0374
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,419,880 -47,785 -3.26 197,519 -8.77 0.0409
2025-05-13 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,467,665 47,967 3.38 216,510 22.50 0.0492
2025-02-13 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,419,698 -53,383 -3.62 176,738 -17.96 0.0399
2024-11-13 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,473,081 -30,315 -2.02 215,423 10.94 0.0488
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,503,396 103,812 7.42 194,179 13.53 0.0471
2024-05-10 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,399,584 79,542 6.03 171,043 -1.83 0.0412
2024-02-09 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,320,042 86,234 6.99 174,232 14.04 0.0455
2023-11-13 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,233,808 -19,672 -1.57 152,783 -14.62 0.0448
2023-08-15 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,253,480 -1,953 -0.16 178,934 -2.70 0.0494
2023-05-12 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,255,433 38,125 3.13 183,909 -0.88 0.0530
2023-02-13 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,217,308 28,982 2.44 185,542 19.96 0.0557
2022-11-14 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,188,326 -46,817 -3.79 154,672 -15.83 0.0504
2022-08-12 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,235,143 -70,620 -5.41 183,753 -14.99 0.0569
2022-05-16 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,305,763 -36,086 -2.69 216,143 -14.71 0.0554
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,341,849 -1,838,738 -57.81 253,422 -52.86 0.0633
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,180,587 11,052 0.35 537,645 10.06 0.1181
2021-08-16 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,169,535 13,742 0.44 488,520 3.26 0.1071
2021-05-13 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,155,793 7,822 0.25 473,116 -2.07 0.1066
2021-02-09 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,147,971 -30,951 -0.97 483,119 4.90 0.1162
2020-11-05 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,178,922 -79,579 -2.44 460,562 9.86 0.1272
2020-08-13 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,258,501 196,438 6.42 419,238 14.51 0.1219
2020-05-14 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,062,063 -69,410 -2.22 366,100 -4.84 0.1266
2020-02-14 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,131,473 -135,255 -4.14 384,702 -5.21 0.1036
2019-11-12 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,266,728 -492,645 -13.10 405,826 -6.94 0.1150
2019-08-06 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,759,373 12,421 0.33 436,087 11.63 0.1248
2019-05-10 2019-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,746,952 74,131 2.02 390,657 17.18 0.1163
2019-02-11 2018-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,672,821 -126,335 -3.33 333,381 -0.25 0.1107
2018-11-02 2018-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,799,156 135,184 3.69 334,212 6.84 0.0945
2018-08-01 2018-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,663,972 586,729 19.07 312,830 23.78 0.0927
2018-05-02 2018-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,077,243 25,245 0.83 252,734 -9.49 0.0748
2018-02-08 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,051,998 303,098 11.03 279,228 25.54 0.0807
2017-11-09 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,748,900 216,451 8.55 222,414 12.67 0.0689
2017-08-10 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,532,449 267,871 11.83 197,405 12.09 0.0634
2017-04-28 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,264,578 61,186 2.78 176,115 10.46 0.0572
2017-02-01 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,203,392 241,543 12.31 159,439 8.59 0.0563
2016-10-31 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,961,849 455,011 30.20 146,824 15.30 0.0541
2016-08-11 2016-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,506,838 137,985 10.08 127,342 34.96 0.0493
2016-05-16 2016-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,368,853 51,460 3.91 94,354 19.87 0.0376
2016-02-09 2015-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,317,393 536,229 68.64 78,714 82.95 0.0311
2015-11-13 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 781,164 -47,806 -5.77 43,026 6.73 0.0180
2015-08-14 2015-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 828,970 21,843 2.71 40,313 -7.86 0.0155
2015-05-12 2015-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 807,127 -182,810 -18.47 43,754 -17.07 0.0170
2015-05-12 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 807,127 43,754
2015-02-11 2014-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 989,937 52,884 5.64 52,763 16.75 0.0207
2014-11-06 2014-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 937,053 179,950 23.77 45,194 20.71 0.0189
2014-08-29 2014-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 757,103 9,307 1.24 37,439 10.28 0.0154
2014-08-12 2014-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 757,103 37,439
2014-05-15 2014-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 747,796 -57,825 33,950 0.0144
2014-08-12 2014-03-31 13F/A-2 AMERICAN WTR WKS CO INC COM 030420103 747,796 -57,825 -7.18 33,950 -0.28 0.0144
2014-05-12 2014-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 747,796 33,950
2014-02-06 2013-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 805,621 31,857 4.12 34,045 6.59 0.0148
2013-11-13 2013-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 773,764 -16,604 -2.10 31,941 -1.98 0.0152
2013-08-13 2013-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 790,368 790,368 32,587 0.0169
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-05-16 2022-03-31 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM Call 500 94 n/a n/a n/a
2017-08-10 2017-06-30 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-04-28 2017-03-31 13F AMERICAN WTR WKS CO INC COM Call 16,600 28 n/a n/a n/a
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.