American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionItau Unibanco Holding S.A.
Latest Disclosed Ownership187 shares
Latest Disclosed Value $ 25,449
Itau Unibanco Holding S.A. ownership in AWK / American Water Works Company, Inc.

On May 15, 2026 - Itau Unibanco Holding S.A. filed a 13F-HR/A form disclosing ownership of 187 shares of American Water Works Company, Inc. (MX:AWK) valued at $25,449 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 187 shares of American Water Works Company, Inc.. This represents a change in shares of 0.00% during the quarter.

Itau Unibanco Holding S.A. has a history of taking positions in derivatives of the underlying security (AWK) in the form of stock options.

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)
2026-05-15 2026-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 187 0 0.00 25 4.17 0.0005
2026-05-14 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 187 0 24 0.0006
2026-02-13 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 187 11 6.25 24 0.00 0.0006
2025-11-12 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 176 0 0.00 24 0.00 0.0008
2025-08-08 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 176 -25 -12.44 24 0.0009
2025-05-14 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 201 0 0.00 0 -100.00 0.0011
2025-02-14 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 201 23 12.92 25 -3.85 0.0008
2024-11-14 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 178 0 0.00 26 18.18 0.0009
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 178 178 23 0.0009
2024-05-14 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 0 -203 -100.00 0 -100.00
2024-02-14 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 203 -206 -50.37 27 -48.00 0.0009
2023-11-14 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 409 0 0.00 51 -13.79 0.0022
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 409 -22 -5.10 58 -7.94 0.0027
2023-05-12 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 431 0 0.00 63 -3.08 0.0032
2023-02-09 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 431 15 3.61 66 20.37 0.0027
2022-11-14 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 416 8 1.96 54 -11.48 0.0022
2022-08-15 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 408 50 13.97 61 3.39 0.0021
2022-05-16 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 358 4 1.13 59 -11.94 0.0016
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 354 14 4.12 67 17.54 0.0020
2021-11-12 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 340 340 57 0.0031
2018-02-09 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 0 -483 -100.00 0 -100.00
2017-11-14 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 483 343 245.00 124 1,027.27 0.0084
2017-08-14 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 140 -240 -63.16 11 -63.33 0.0013
2017-05-15 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 380 380 30 0.0036
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
(%)
2019-11-14 2019-09-30 13F AMERICAN WTR WKS CO INC PUT Put 0 -100.00 0 n/a n/a n/a
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC PUT Put 109 0 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.