American Water Works Company, Inc.
AT ˙ WBAG ˙ US0304201033
€ 105,10 ↓ -2,50 (-2,32%)
2026-06-04
AKTIENPREIS
SecurityAT:AWK / American Water Works Company, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership3,612,397 shares
Latest Disclosed Value $ 491,611,495
Morgan Stanley reports 8.42% increase in ownership of AWK / American Water Works Company, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 3,612,397 shares of American Water Works Company, Inc. (AT:AWK) valued at $428,972,144 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 3,331,918 shares of American Water Works Company, Inc.. This represents a change in shares of 8.42% during the quarter. The current value of the position is $379,662,925 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)
2026-05-15 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,612,397 280,479 8.42 491,611 13.06 0.0296
2026-05-27 2025-12-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 3,331,918 43,373 1.32 434,816 -5.01 0.0260
2026-02-13 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,331,918 43,373 434,816 0.0260
2026-05-27 2025-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 3,288,545 -98,439 -2.91 457,733 -2.85 0.0277
2025-11-14 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,288,545 -98,439 457,733 0.0277
2025-08-15 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 3,386,984 202,703 6.37 471,164 0.30 0.0307
2025-05-15 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,184,281 267,838 9.18 469,746 29.38 0.0336
2025-05-15 2024-12-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 2,916,443 -30,827 -1.05 363,068 -15.76 0.0254
2025-02-14 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,916,443 -30,827 363,068 0.0254
2025-05-14 2024-09-30 13F/A-2 AMERICAN WTR WKS CO INC COM 030420103 2,947,270 75,083 2.61 431,009 16.18 0.0313
2025-02-14 2024-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 2,947,270 75,083 431,009 0.0312
2024-11-14 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,947,270 75,083 431,009 0.0037
2025-05-14 2024-06-30 13F/A-2 AMERICAN WTR WKS CO INC COM 030420103 2,872,187 -401,021 -12.25 370,972 -7.26 0.0287
2024-10-17 2024-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 2,872,187 -401,021 370,972 0.0287
2024-08-14 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,872,187 -401,021 370,972 0.0287
2024-10-17 2024-03-31 13F/A-2 AMERICAN WTR WKS CO INC COM 030420103 3,273,208 396,057 13.77 400,019 5.34 0.0321
2024-08-16 2024-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 3,273,208 396,057 400,019 0.0038
2024-05-15 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 3,273,208 396,057 400,019 0.0321
2024-08-16 2023-12-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 2,877,151 252,280 9.61 379,755 16.83 0.0335
2024-02-13 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,877,151 252,280 379,755 0.0335
2023-11-15 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,624,871 118,221 4.72 325,038 -9.16 0.0331
2023-08-14 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,506,650 61,992 2.54 357,825 -0.08 0.0353
2023-05-15 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,444,658 54,361 2.27 358,118 -1.70 0.0384
2023-02-14 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 2,390,297 296,998 14.19 364,329 33.72 0.0414
2022-11-14 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,093,299 12,353 0.59 272,465 -11.99 0.0371
2022-10-27 2022-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 2,080,946 781,365 60.12 309,582 43.91 0.0402
2022-08-15 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 2,080,946 781,365 309,582 0.0402
2022-10-27 2022-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,299,581 -373,332 -22.32 215,121 -31.91 0.0290
2022-05-13 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,299,581 -373,332 215,121 0.0290
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,672,913 -23,381 -1.38 315,947 10.19 0.0390
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,696,294 -29,510 -1.71 286,741 7.80 0.0386
2021-08-23 2021-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,725,804 295,694 20.68 266,000 24.07 0.0351
2021-08-16 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,725,804 295,694 266,000 0.0073
2021-05-17 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,430,110 33,134 2.37 214,403 0.00 0.0315
2021-02-16 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,396,976 68,993 5.20 214,393 11.43 0.0331
2020-11-13 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,327,983 49,594 3.88 192,397 16.98 0.0372
2020-08-14 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,278,389 -59,164 -4.42 164,476 2.85 0.0364
2020-05-26 2020-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,337,553 39,267 3.02 159,919 0.27 0.0435
2020-05-15 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,337,553 39,267 159,919 12,285.1129
2020-02-14 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,298,286 28,754 2.26 159,494 1.13 0.0371
2019-11-14 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,269,532 -116,305 -8.39 157,713 -1.89 0.0417
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,385,837 -4,274 -0.31 160,757 10.92 0.0428
2019-05-15 2019-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,390,111 -394,654 -22.11 144,932 -10.54 0.0410
2019-02-14 2018-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,784,765 280,229 18.63 162,004 22.40 0.0485
2019-04-23 2018-09-30 13F/A-2 AMERICAN WTR WKS CO INC COM 030420103 1,504,536 -33,366 -2.17 132,354 0.80 0.0331
2018-11-20 2018-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,504,536 0 132,354 0.0331
2018-11-14 2018-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,504,536 -33,366 132,354
2019-04-23 2018-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,537,902 94,686 6.56 131,307 10.78 0.0355
2018-08-14 2018-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,537,902 94,686 131,307
2019-04-23 2018-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,443,216 -4,003 -0.28 118,532 -10.48 0.0329
2018-05-14 2018-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,443,216 -4,003 118,532
2019-04-23 2017-12-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,447,219 289,428 25.00 132,406 41.34 0.0362
2018-02-14 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,447,219 289,428 132,406
2017-11-14 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,157,791 -124,679 -9.72 93,677 -6.29 0.0281
2017-08-11 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,282,470 -349,771 -21.43 99,967 -21.25 0.0302
2017-05-22 2017-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,632,241 -167,325 -9.30 126,940 -2.52 0.0390
2017-05-12 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,632,241 126,940
2017-02-22 2016-12-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,799,566 426,521 31.06 130,219 26.72 0.0426
2017-02-13 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,799,566 130,219
2016-11-10 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,373,045 -20,574 -1.48 102,759 -12.75 0.0351
2016-08-12 2016-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,393,619 14,039 1.02 117,774 23.85 0.0425
2016-05-12 2016-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,379,580 -6,584 -0.47 95,093 14.81 0.0366
2016-02-09 2015-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,386,164 222,749 19.15 82,823 29.25 0.0300
2016-02-08 2015-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,163,415 -158,092 -11.96 64,080 -0.29 0.0237
2015-11-09 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,163,415 64,080
2015-08-12 2015-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,321,507 9,309 0.71 64,264 -9.66 0.0223
2015-05-14 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,312,198 -133,970 -9.26 71,135 -7.71 0.0262
2015-02-13 2014-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,446,168 -29,481 -2.00 77,079 8.30 0.0282
2014-12-16 2014-09-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 1,475,649 -301,194 -16.95 71,170 -19.00 0.0274
2014-11-14 2014-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,475,649 71,170
2014-08-12 2014-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,776,843 33,802 1.94 87,866 11.03 0.1503
2014-05-13 2014-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,743,041 -81,770 -4.48 79,135 2.62 0.0331
2014-02-13 2013-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,824,811 580,988 46.71 77,117 50.19 0.0328
2013-11-13 2013-09-30 13F AMERICAN WATER WKS COM 030420103 1,243,823 -351,604 -22.04 51,345 -21.94 0.0243
2013-08-08 2013-06-30 13F AMERICAN WATER WKS COM 030420103 1,595,427 1,595,427 65,779 0.0332
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.