American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionCapital Fund Management S.a.
Latest Disclosed Ownership20,557 shares
Latest Disclosed Value $ 2,797,602
Capital Fund Management S.a. ownership in AWK / American Water Works Company, Inc.

On May 14, 2026 - Capital Fund Management S.a. filed a 13F-HR form disclosing ownership of 20,557 shares of American Water Works Company, Inc. (MX:AWK) valued at $2,797,602 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 55,677 shares of American Water Works Company, Inc.. This represents a change in shares of -63.08% during the quarter.

Capital Fund Management S.a. 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 and put 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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)
2026-05-14 2026-03-31 13F AMERICAN WTR WKS CO INC NEW COM AMERICAN WTR WKS CO INC NEW COM 030420103 20,557 -35,120 -63.08 2,798 -61.50 0.0126
2026-02-17 2025-12-31 13F AMERICAN WTR WKS CO INC NEW COM AMERICAN WTR WKS CO INC NEW COM 030420103 55,677 55,677 7,266 0.0202
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 0 -102,494 -100.00 0 -100.00
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 102,494 -9,407 -8.41 12,526 -15.19 0.0362
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 111,901 73,699 192.92 14,770 212.24 0.0397
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 38,202 38,202 4,731 0.0163
2019-02-13 2018-12-31 13F American Water Works COM 030420103 0 -24,030 -100.00 0 -100.00
2018-11-14 2018-09-30 13F American Water Works COM 030420103 24,030 24,030 2,114 0.0115
2018-08-14 2018-06-30 13F American Water Works COM 030420103 0 -31,797 -100.00 0 -100.00
2018-05-15 2018-03-31 13F American Water Works COM 030420103 31,797 31,797 2,611 0.0157
2017-05-03 2017-03-31 13F American Water Works COM 030420103 0 -134,840 -100.00 0 -100.00
2017-02-08 2016-12-31 13F American Water Works COM 030420103 134,840 -30,444 -18.42 9,757 -21.12 0.0840
2016-10-31 2016-09-30 13F American Water Works COM 030420103 165,284 165,284 22.58 12,370 26.78 0.1136
2016-07-27 2016-06-30 13F American Water Works COM 030420103 0 -16,984 -100.00 0 -100.00
2016-05-02 2016-03-31 13F American Water Works COM 030420103 16,984 16,984 0.00 1,171 0.0114
2016-01-28 2015-12-31 13F American Water Works COM 030420103 0 0 0 0.0000
2015-10-27 2015-09-30 13F American Water Works COM 030420103 0 -119,389 -100.00 0 -100.00
2015-07-28 2015-06-30 13F American Water Works COM 030420103 119,389 97,809 453.24 5,806 396.24 0.0736
2015-04-28 2015-03-31 13F American Water Works COM 030420103 21,580 21,580 -81.92 1,170 -79.85 0.0160
2015-01-28 2014-12-31 13F American Water Works COM 030420103 0 -5,500 -100.00 0 -100.00
2014-10-31 2014-09-30 13F American Water Works COM 030420103 5,500 -127,130 -95.85 265 -95.27 0.0030
2014-01-31 2013-12-31 13F American Water Works COM 030420103 132,630 -83,779 -38.71 5,605 -37.26 0.0693
2013-10-31 2013-09-30 13F American Water Works COM 030420103 216,409 80,621 59.37 8,933 59.55 0.1235
2013-07-31 2013-06-30 13F American Water Works COM 030420103 135,788 135,788 5,599 0.0855
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
(%)
2026-05-14 2026-03-31 13F AMERICAN WTR WKS CO INC NEW COM AMERICAN WTR WKS CO INC NEW COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F AMERICAN WTR WKS CO INC NEW COM AMERICAN WTR WKS CO INC NEW COM Call 13,300 -49.24 1,736 -52.41 n/a n/a n/a
2025-11-13 2025-09-30 13F AMERICAN WTR WKS CO INC COM Call 26,200 3,647 n/a n/a n/a
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC COM Call 22,900 -65.72 2,799 -68.26 n/a n/a n/a
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM Call 66,800 255.32 8,817 278.69 n/a n/a n/a
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM Call 18,800 2,328 n/a n/a n/a
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F AMERICAN WTR WKS CO INC COM Call 10,700 1,567 n/a n/a n/a
2022-02-10 2021-12-31 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2021-09-30 13F AMERICAN WTR WKS CO INC COM Call 10,400 -77.19 1,758 -74.99 n/a n/a n/a
2021-08-12 2021-06-30 13F AMERICAN WTR WKS CO INC COM Call 45,600 7,028 n/a n/a n/a
2021-05-14 2021-03-31 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F AMERICAN WTR WKS CO INC COM Call 13,000 1,995 n/a n/a n/a
2020-08-13 2020-06-30 13F American Water Works COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-13 2020-03-31 13F American Water Works COM Call 4,000 25.00 478 21.63 n/a n/a n/a
2020-02-13 2019-12-31 13F American Water Works COM Call 3,200 -91.09 393 -91.19 n/a n/a n/a
2019-11-13 2019-09-30 13F American Water Works COM Call 35,900 5.90 4,460 13.43 n/a n/a n/a
2019-08-12 2019-06-30 13F American Water Works COM Call 33,900 113.21 3,932 137.15 n/a n/a n/a
2019-05-13 2019-03-31 13F/A American Water Works COM Call 15,900 -26.39 1,658 -15.45 n/a n/a n/a
2019-05-13 2019-03-31 13F American Water Works COM Call 21,600 1,961 n/a n/a n/a
2019-02-13 2018-12-31 13F American Water Works COM Call 21,600 35.85 1,961 18.28 n/a n/a n/a
2018-11-14 2018-09-30 13F American Water Works COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F American Water Works COM Call 3,100 -85.91 265 -85.33 n/a n/a n/a
2018-05-15 2018-03-31 13F American Water Works COM Call 22,000 -75.64 1,807 -78.13 n/a n/a n/a
2018-02-09 2017-12-31 13F American Water Works COM Call 90,300 310.45 8,262 357.22 n/a n/a n/a
2017-05-03 2017-03-31 13F American Water Works COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-08 2016-12-31 13F American Water Works COM Call 12,900 -60.31 933 -61.64 n/a n/a n/a
2016-10-31 2016-09-30 13F American Water Works COM Call 32,500 90.06 2,432 68.30 n/a n/a n/a
2016-07-27 2016-06-30 13F American Water Works COM Call 17,100 1,445 n/a n/a n/a
Disclosed Put 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
(%)
2026-05-14 2026-03-31 13F AMERICAN WTR WKS CO INC NEW COM AMERICAN WTR WKS CO INC NEW COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F AMERICAN WTR WKS CO INC NEW COM AMERICAN WTR WKS CO INC NEW COM Put 17,400 28.89 2,271 20.81 n/a n/a n/a
2025-11-13 2025-09-30 13F AMERICAN WTR WKS CO INC COM Put 13,500 17.39 1,879 17.51 n/a n/a n/a
2025-08-13 2025-06-30 13F AMERICAN WTR WKS CO INC COM Put 11,500 1,600 n/a n/a n/a
2025-02-13 2024-12-31 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-13 2024-09-30 13F AMERICAN WTR WKS CO INC COM Put 11,100 -42.49 1,623 -34.87 n/a n/a n/a
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM Put 19,300 -6.76 2,493 -1.46 n/a n/a n/a
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC COM Put 20,700 -57.23 2,530 -60.41 n/a n/a n/a
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM Put 48,400 178.16 6,388 196.56 n/a n/a n/a
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM Put 17,400 2,155 n/a n/a n/a
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F AMERICAN WTR WKS CO INC COM Put 10,600 1,553 n/a n/a n/a
2022-02-10 2021-12-31 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2021-09-30 13F AMERICAN WTR WKS CO INC COM Put 11,400 -46.23 1,927 -41.02 n/a n/a n/a
2021-08-12 2021-06-30 13F AMERICAN WTR WKS CO INC COM Put 21,200 3,268 n/a n/a n/a
2020-08-13 2020-06-30 13F American Water Works COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-13 2020-03-31 13F American Water Works COM Put 3,700 2.78 442 0.00 n/a n/a n/a
2020-02-13 2019-12-31 13F American Water Works COM Put 3,600 -87.46 442 -87.60 n/a n/a n/a
2019-11-13 2019-09-30 13F American Water Works COM Put 28,700 431.48 3,565 469.49 n/a n/a n/a
2019-08-12 2019-06-30 13F American Water Works COM Put 5,400 157.14 626 185.84 n/a n/a n/a
2019-05-13 2019-03-31 13F/A American Water Works COM Put 2,100 -73.08 219 -69.07 n/a n/a n/a
2019-05-13 2019-03-31 13F American Water Works COM Put 7,800 708 n/a n/a n/a
2019-02-13 2018-12-31 13F American Water Works COM Put 7,800 271.43 708 223.29 n/a n/a n/a
2018-11-14 2018-09-30 13F American Water Works COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F American Water Works COM Put 7,800 -71.11 666 -69.97 n/a n/a n/a
2018-05-15 2018-03-31 13F American Water Works COM Put 27,000 -58.46 2,218 -62.70 n/a n/a n/a
2018-02-09 2017-12-31 13F American Water Works COM Put 65,000 140.74 5,947 168.12 n/a n/a n/a
2017-05-03 2017-03-31 13F American Water Works COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-08 2016-12-31 13F American Water Works COM Put 4,800 -67.35 347 -68.45 n/a n/a n/a
2016-10-31 2016-09-30 13F American Water Works COM Put 14,700 70.93 1,100 51.31 n/a n/a n/a
2016-07-27 2016-06-30 13F American Water Works COM Put 8,600 727 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.