American Water Works Company, Inc.
MX ˙ BMV ˙ US0304201033
SecurityMX:AWK / American Water Works Company, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership1,081,628 shares
Latest Disclosed Value $ 147,198,755
UBS Group AG ownership in AWK / American Water Works Company, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 1,081,628 shares of American Water Works Company, Inc. (MX:AWK) valued at $147,198,755 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 1,133,469 shares of American Water Works Company, Inc.. This represents a change in shares of -4.57% during the quarter.

UBS Group AG 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 20,858 of underlying shares valued at $2,838,565 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)
2026-05-05 2026-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,081,628 -51,841 -4.57 147,199 -0.49 0.0221
2026-01-29 2025-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,133,469 150,441 15.30 147,918 8.11 0.0240
2025-11-13 2025-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 983,028 -36,456 -3.58 136,828 -3.52 0.0214
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,019,484 -239,128 -19.00 141,820 -23.62 0.0246
2025-05-13 2025-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,258,612 9,589 0.77 185,670 19.41 0.0341
2025-02-14 2024-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,249,023 95,228 8.25 155,491 -7.85 0.0287
2024-11-14 2024-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,153,795 140,265 13.84 168,731 28.89 0.0368
2024-08-14 2024-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,013,530 -11,437 -1.12 130,908 4.51 0.0323
2024-05-13 2024-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,024,967 190,561 22.84 125,261 13.74 0.0312
2024-02-09 2023-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 834,406 -90,659 -9.80 110,133 -3.86 0.0330
2023-11-09 2023-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 925,065 -13,537 -1.44 114,551 -14.51 0.0395
2023-08-11 2023-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 938,602 63,435 7.25 133,985 4.51 0.0452
2023-05-12 2023-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 875,167 148,807 20.49 128,203 15.80 0.0469
2023-02-08 2022-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 726,360 21,352 3.03 110,712 20.65 0.0413
2022-11-10 2022-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 705,008 -24,206 -3.32 91,764 -15.41 0.0402
2022-08-10 2022-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 729,214 44,506 6.50 108,485 -4.28 0.0445
2022-05-16 2022-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 684,708 -171,675 -20.05 113,339 -29.92 0.0378
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 856,383 12,482 1.48 161,735 13.38 0.0463
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 843,901 53,985 6.83 142,653 17.17 0.0449
2021-08-13 2021-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 789,916 -170,622 -17.76 121,750 -15.45 0.0393
2021-05-12 2021-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 960,538 -55,429 -5.46 144,003 -7.64 0.0478
2021-02-11 2020-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,015,967 14,560 1.45 155,921 7.47 0.0527
2020-11-12 2020-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,001,407 6,807 0.68 145,084 13.38 0.0547
2020-07-31 2020-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 994,600 30,791 3.19 127,965 11.05 0.0540
2020-05-01 2020-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 963,809 -203,868 -17.46 115,233 -19.67 0.0543
2020-02-14 2019-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,167,677 -7,877 -0.67 143,449 -1.77 0.0499
2019-11-14 2019-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,175,554 -84,409 -6.70 146,039 -0.08 0.0562
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,259,963 22,561 1.82 146,156 13.29 0.0563
2019-05-14 2019-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,237,402 82,024 7.10 129,011 23.02 0.0533
2019-02-14 2018-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 1,155,378 108,831 10.40 104,874 13.91 0.0476
2018-11-14 2018-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 1,046,547 121,108 13.09 92,064 16.52 0.0365
2018-08-14 2018-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 925,439 -13,590 -1.45 79,014 2.45 0.0342
2018-05-15 2018-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 939,029 174,834 22.88 77,123 10.31 0.0333
2018-02-14 2017-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 764,195 2,704 0.36 69,916 13.48 0.0287
2017-11-14 2017-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 761,491 63,271 9.06 61,612 13.20 0.0285
2017-11-14 2017-06-30 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 698,220 165,712 31.12 54,426 31.42 0.0282
2017-08-14 2017-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 698,220 165,712 54,426
2017-11-14 2017-03-31 13F/A-1 AMERICAN WTR WKS CO INC COM 030420103 532,508 189,474 55.23 41,414 66.84 0.0226
2017-05-12 2017-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 532,508 189,474 41,414
2017-02-14 2016-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 343,034 -16,923 -4.70 24,822 -7.86 0.0137
2016-11-14 2016-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 359,957 -176,177 -32.86 26,938 -40.55 0.0161
2016-08-12 2016-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 536,134 97,212 22.15 45,309 49.76 0.0285
2016-05-12 2016-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 438,922 58,214 15.29 30,255 33.01 0.0203
2016-02-16 2015-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 380,708 -31,390 -7.62 22,747 0.22 0.0148
2015-11-13 2015-09-30 13F AMERICAN WTR WKS CO INC COM 030420103 412,098 3,361 0.82 22,698 14.19 0.0161
2015-08-14 2015-06-30 13F AMERICAN WTR WKS CO INC COM 030420103 408,737 35,331 9.46 19,877 -1.80 0.0132
2015-05-14 2015-03-31 13F AMERICAN WTR WKS CO INC COM 030420103 373,406 -225,379 -37.64 20,242 -36.58 0.0140
2015-02-17 2014-12-31 13F AMERICAN WTR WKS CO INC COM 030420103 598,785 598,785 31,916 0.0223
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
(%)
2026-05-05 2026-03-31 13F AMERICAN WTR WKS CO INC COM Call 20,858 0.00 2,839 4.30 n/a n/a n/a
2026-01-29 2025-12-31 13F AMERICAN WTR WKS CO INC COM Call 20,858 0.00 2,722 -6.27 n/a n/a n/a
2025-11-13 2025-09-30 13F AMERICAN WTR WKS CO INC COM Call 20,858 0.00 2,903 0.07 n/a n/a n/a
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC COM Call 20,858 0.00 2,902 -5.69 n/a n/a n/a
2025-05-13 2025-03-31 13F AMERICAN WTR WKS CO INC COM Call 20,858 0.00 3,077 18.49 n/a n/a n/a
2025-02-14 2024-12-31 13F AMERICAN WTR WKS CO INC COM Call 20,858 0.00 2,597 -14.89 n/a n/a n/a
2024-11-14 2024-09-30 13F AMERICAN WTR WKS CO INC COM Call 20,858 0.00 3,050 13.21 n/a n/a n/a
2024-08-14 2024-06-30 13F AMERICAN WTR WKS CO INC COM Call 20,858 2,694 n/a n/a n/a
2024-05-13 2024-03-31 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F AMERICAN WTR WKS CO INC COM Call 35,140 0.00 4,638 6.60 n/a n/a n/a
2023-11-09 2023-09-30 13F AMERICAN WTR WKS CO INC COM Call 35,140 0.00 4,351 -13.26 n/a n/a n/a
2023-08-11 2023-06-30 13F AMERICAN WTR WKS CO INC COM Call 35,140 0.00 5,016 -2.55 n/a n/a n/a
2023-05-12 2023-03-31 13F AMERICAN WTR WKS CO INC COM Call 35,140 35,040.00 5,148 34,213.33 n/a n/a n/a
2023-02-08 2022-12-31 13F AMERICAN WTR WKS CO INC COM Call 100 -99.50 15 -99.43 n/a n/a n/a
2022-11-10 2022-09-30 13F AMERICAN WTR WKS CO INC COM Call 20,100 2,616 n/a n/a n/a
2022-05-16 2022-03-31 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM Call 1,300 0.00 246 11.82 n/a n/a n/a
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC COM Call 1,300 220 n/a n/a n/a
2016-11-14 2016-09-30 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-12 2016-06-30 13F AMERICAN WTR WKS CO INC COM Call 51,300 4,335 n/a n/a n/a
2016-02-16 2015-12-31 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-11-13 2015-09-30 13F AMERICAN WTR WKS CO INC COM Call 12,000 -81.25 661 -78.76 n/a n/a n/a
2015-08-14 2015-06-30 13F AMERICAN WTR WKS CO INC COM Call 64,000 3,112 n/a n/a n/a
2015-05-14 2015-03-31 13F AMERICAN WTR WKS CO INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-17 2014-12-31 13F AMERICAN WTR WKS CO INC COM Call 70,500 3,758 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
(%)
2026-05-05 2026-03-31 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-01-29 2025-12-31 13F AMERICAN WTR WKS CO INC COM Put 600 78 n/a n/a n/a
2025-11-13 2025-09-30 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F AMERICAN WTR WKS CO INC COM Put 600 0.00 83 -5.68 n/a n/a n/a
2025-05-13 2025-03-31 13F AMERICAN WTR WKS CO INC COM Put 600 89 n/a n/a n/a
2023-05-12 2023-03-31 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-08 2022-12-31 13F AMERICAN WTR WKS CO INC COM Put 2,500 0.00 381 17.23 n/a n/a n/a
2022-11-10 2022-09-30 13F AMERICAN WTR WKS CO INC COM Put 2,500 19.05 325 4.17 n/a n/a n/a
2022-08-10 2022-06-30 13F AMERICAN WTR WKS CO INC COM Put 2,100 16.67 312 4.70 n/a n/a n/a
2022-05-16 2022-03-31 13F AMERICAN WTR WKS CO INC COM Put 1,800 -37.93 298 -45.62 n/a n/a n/a
2022-02-14 2021-12-31 13F AMERICAN WTR WKS CO INC COM Put 2,900 11.54 548 24.55 n/a n/a n/a
2021-11-15 2021-09-30 13F AMERICAN WTR WKS CO INC COM Put 2,600 116.67 440 137.84 n/a n/a n/a
2021-08-13 2021-06-30 13F AMERICAN WTR WKS CO INC COM Put 1,200 300.00 185 311.11 n/a n/a n/a
2021-05-12 2021-03-31 13F AMERICAN WTR WKS CO INC COM Put 300 -89.29 45 -89.53 n/a n/a n/a
2021-02-11 2020-12-31 13F AMERICAN WTR WKS CO INC COM Put 2,800 75.00 430 85.34 n/a n/a n/a
2020-11-12 2020-09-30 13F AMERICAN WTR WKS CO INC COM Put 1,600 220.00 232 262.50 n/a n/a n/a
2020-07-31 2020-06-30 13F AMERICAN WTR WKS CO INC COM Put 500 0.00 64 6.67 n/a n/a n/a
2020-05-01 2020-03-31 13F AMERICAN WTR WKS CO INC COM Put 500 0.00 60 -1.64 n/a n/a n/a
2020-02-14 2019-12-31 13F AMERICAN WTR WKS CO INC COM Put 500 -16.67 61 -18.67 n/a n/a n/a
2019-11-14 2019-09-30 13F AMERICAN WTR WKS CO INC COM Put 600 0.00 75 7.14 n/a n/a n/a
2019-08-14 2019-06-30 13F AMERICAN WTR WKS CO INC COM Put 600 50.00 70 66.67 n/a n/a n/a
2019-05-14 2019-03-31 13F AMERICAN WTR WKS CO INC COM Put 400 42 n/a n/a n/a
2019-02-14 2018-12-31 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F AMERICAN WTR WKS CO INC COM Put 800 70 n/a n/a n/a
2018-08-14 2018-06-30 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F AMERICAN WTR WKS CO INC COM Put 4,000 329 n/a n/a n/a
2018-02-14 2017-12-31 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-14 2017-09-30 13F AMERICAN WTR WKS CO INC COM Put 2,000 5.26 162 9.46 n/a n/a n/a
2017-11-14 2017-06-30 13F/A AMERICAN WTR WKS CO INC COM Put 1,900 18.75 148 19.35 n/a n/a n/a
2017-08-14 2017-06-30 13F AMERICAN WTR WKS CO INC COM Put 1,900 148 n/a n/a n/a
2017-11-14 2017-03-31 13F/A AMERICAN WTR WKS CO INC COM Put 1,600 124 n/a n/a n/a
2017-05-12 2017-03-31 13F AMERICAN WTR WKS CO INC COM Put 1,600 124 n/a n/a n/a
2017-02-14 2016-12-31 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-11-14 2016-09-30 13F AMERICAN WTR WKS CO INC COM Put 1,300 97 n/a n/a n/a
2016-08-12 2016-06-30 13F AMERICAN WTR WKS CO INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-12 2016-03-31 13F AMERICAN WTR WKS CO INC COM Put 1,800 124 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.