American Water Works Company, Inc.
AT ˙ WBAG ˙ US0304201033
107,20 € ↑2,10 (2,00%)
2026-06-05
DEL PRIS
SecurityAT:AWK / American Water Works Company, Inc.
InstitutionMayflower Financial Advisors, LLC
Latest Disclosed Ownership2,006 shares
Latest Disclosed Value $ 273,057
Mayflower Financial Advisors, LLC reports 5.64% decrease in ownership of AWK / American Water Works Company, Inc.

On April 23, 2026 - Mayflower Financial Advisors, LLC filed a 13F-HR form disclosing ownership of 2,006 shares of American Water Works Company, Inc. (AT:AWK) valued at $238,212 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 2,126 shares of American Water Works Company, Inc.. This represents a change in shares of -5.64% during the quarter. The current value of the position is $215,043 USD.

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)
2026-04-23 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,006 -120 -5.64 273 -1.44 0.0331
2026-01-13 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,126 38 1.82 278 -4.48 0.0336
2025-10-17 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,088 -76 -3.51 291 -3.65 0.0365
2025-08-04 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,164 49 2.32 301 -3.53 0.0419
2025-05-02 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,115 98 4.86 312 24.30 0.0474
2025-01-22 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,017 -74 -3.54 251 -17.70 0.0375
2024-11-04 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,091 -98 -4.48 306 8.16 0.0460
2024-08-02 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,189 -150 -6.41 283 -1.05 0.0464
2024-04-29 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,339 -266 -10.21 286 -16.91 0.0478
2024-01-22 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,605 -498 -16.05 344 -10.68 0.0475
2023-10-12 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,103 17 0.55 384 -12.73 0.0575
2023-07-13 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,086 20 0.65 440 -2.00 0.0570
2023-04-12 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,066 -50 -1.60 449 -5.47 0.0590
2023-01-25 2022-12-31 13F/A-1 AMERICAN WTR WKS CO INC NEW COM Stock 030420103 3,116 5 0.16 475 17.28 0.0659
2022-10-19 2022-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 3,111 15 0.48 405 -12.15 0.0653
2022-07-15 2022-06-30 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 3,096 14 0.45 461 -9.61 0.0706
2022-04-21 2022-03-31 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 3,082 211 7.35 510 -5.90 0.0686
2022-01-21 2021-12-31 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 2,871 65 2.32 542 11.98 0.0720
2021-10-26 2021-09-30 13F AMERICAN WTR WKS CO INC NEW COM Stock 030420103 2,806 7 0.25 484 12.30 0.0653
2021-07-29 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,799 -20 -0.71 431 1.89 0.0593
2021-04-23 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,819 216 8.30 423 6.02 0.0627
2021-04-12 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,603 2,603 399 0.0688
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.