American Water Works Company, Inc.
AT ˙ WBAG ˙ US0304201033
105,10 € ↓ -2,50 (-2,32%)
2026-06-04
DEL PRIS
SecurityAT:AWK / American Water Works Company, Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership2,993 shares
Latest Disclosed Value $ 407,307
Assetmark, Inc reports 6.82% increase in ownership of AWK / American Water Works Company, Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 2,993 shares of American Water Works Company, Inc. (AT:AWK) valued at $355,419 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 2,802 shares of American Water Works Company, Inc.. This represents a change in shares of 6.82% during the quarter. The current value of the position is $314,564 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)
2026-05-06 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,993 191 6.82 407 11.51 0.0008
2026-01-23 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,802 174 6.62 366 0.00 0.0007
2025-11-06 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,628 607 30.03 366 29.89 0.0008
2025-08-04 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,021 1,304 181.87 281 167.62 0.0007
2025-05-06 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 717 -145 -16.82 106 -1.87 0.0003
2025-02-06 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 862 492 132.97 107 98.15 0.0003
2024-11-01 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 370 89 31.67 54 50.00 0.0002
2024-08-13 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 281 -47 -14.33 36 -10.00 0.0001
2024-05-07 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 328 -438 -57.18 40 -60.40 0.0001
2024-02-09 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 766 174 29.39 101 38.36 0.0004
2023-10-27 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 592 45 8.23 73 -6.41 0.0003
2023-08-11 2023-06-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 547 127 30.24 78 27.87 0.0003
2023-05-05 2023-03-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 420 5 1.20 62 -3.17 0.0003
2023-02-10 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 415 66 18.91 63 40.00 0.0003
2022-11-01 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 349 60 20.76 45 4.65 0.0002
2022-08-03 2022-06-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 289 63 27.88 43 16.22 0.0002
2022-05-13 2022-03-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 226 -71 -23.91 37 -33.93 0.0002
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 297 59 24.79 56 40.00 0.0002
2021-11-12 2021-09-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 238 -40 -14.39 40 -6.98 0.0002
2021-08-16 2021-06-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 278 -8,752 -96.92 43 -96.82 0.0002
2021-05-14 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 9,030 -249 -2.68 1,354 -4.92 0.0070
2021-02-10 2020-12-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 9,279 419 4.73 1,424 10.90 0.0079
2020-11-13 2020-09-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 8,860 -9,744 -52.38 1,284 -46.37 0.0083
2020-08-11 2020-06-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 18,604 15,597 518.69 2,394 565.00 0.0171
2020-05-12 2020-03-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 3,007 55 1.86 360 -0.83 0.0030
2020-02-11 2019-12-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 2,952 187 6.76 363 5.52 0.0028
2019-11-13 2019-09-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 2,765 -292 -9.55 344 -3.10 0.0029
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 3,057 2,322 315.92 355 361.04 0.0029
2019-05-14 2019-03-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 735 -64 -8.01 77 5.48 0.0007
2019-02-13 2018-12-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 799 160 25.04 73 30.36 0.0007
2018-11-13 2018-09-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 639 -7 -1.08 56 1.82 0.0005
2018-08-01 2018-06-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 646 -62 -8.76 55 -5.17 0.0005
2018-05-16 2018-03-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 708 -80 -10.15 58 -19.44 0.0006
2018-02-13 2017-12-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 788 9 1.16 72 14.29 0.0007
2017-11-08 2017-09-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 779 43 5.84 63 10.53 0.0007
2017-08-14 2017-06-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 736 -49 -6.24 57 -6.56 0.0007
2017-09-15 2017-03-31 13F/A-1 AMERICAN WTR WKS CO INC NEW COM COM 030420103 785 9 1.16 61 8.93 0.0008
2017-05-08 2017-03-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 785 9 61
2017-09-15 2016-12-31 13F/A-1 AMERICAN WTR WKS CO INC NEW COM COM 030420103 776 45 6.16 56 1.82 0.0008
2017-02-14 2016-12-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 776 45 56
2017-09-14 2016-09-30 13F/A-1 AMERICAN WTR WKS CO INC NEW COM COM 030420103 731 587 407.64 55 358.33 0.0008
2016-11-04 2016-09-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 731 587 55
2017-09-14 2016-06-30 13F/A-1 AMERICAN WTR WKS CO INC NEW COM COM 030420103 144 142 7,100.00 12 0.0002
2016-08-08 2016-06-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 144 142 12
2017-09-14 2016-03-31 13F/A-1 AMERICAN WTR WKS CO INC NEW COM COM 030420103 2 -18 -90.00 0 -100.00
2016-05-13 2016-03-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 2 -18 0
2017-09-14 2015-12-31 13F/A-1 AMERICAN WTR WKS CO INC NEW COM COM 030420103 20 19 1,900.00 1 0.0000
2016-02-12 2015-12-31 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 20 19 1
2016-01-05 2015-09-30 13F/A-1 AMERICAN WTR WKS CO INC NEW COM COM 030420103 1 1 0 0.0000
2015-11-10 2015-09-30 13F AMERICAN WTR WKS CO INC NEW COM COM 030420103 1 0 0.0000
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.