American Water Works Company, Inc. (AWK) Ownership

NYSE: AWKTop holders, insider trades and short interest.

AWK ownership summary

as of October 18, 2026
Institutions
110.2%
of shares outstanding
Insiders
0.12%
of shares outstanding
Shares outstanding
198.7M
Float
198.3M
shares available to trade
Short interest
8.91%
13.8M shares short
Days to cover
7.34
short interest up 18.2% vs prior month
  • Institutions 110.17%
  • Insiders 0.12%

AWK top institutional holders

20 largest
American Water Works Company, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc10.37%20.6M$2.78B+1.1M (+5.6%)June 30, 2026
2Wellington Management Company LLP7.50%14.9M$2.01B+3.9M (+35.2%)June 30, 2026
3Vanguard Capital Management, LLC6.43%12.8M$1.72B+72,809 (+0.6%)June 30, 2026
4State Street Corp5.99%11.9M$1.61B−136,882 (−1.1%)June 30, 2026
5Vanguard Portfolio Management, LLC5.66%11.3M$1.52B−44,987 (−0.4%)June 30, 2026
6GQG Partners LLC4.48%8.9M$1.20B+2.5M (+38.4%)June 30, 2026
7Aristotle Capital Management LLC2.73%5.4M$732.7M−383,728 (−6.6%)June 30, 2026
8Geode Capital Management, LLC2.63%5.2M$704.8M+61,301 (+1.2%)June 30, 2026
9JPMorgan Chase & Co2.52%5.0M$676.4M+3.1M (+161.0%)June 30, 2026
10Amundi2.09%4.1M$559.4M−205,556 (−4.7%)June 30, 2026
11Northern Trust Corp1.83%3.6M$490.4M+44,173 (+1.2%)June 30, 2026
12Impax Asset Management Group PLC1.80%3.6M$483.6M+766,367 (+27.2%)June 30, 2026
13Morgan Stanley - Brokerage Accounts1.79%3.6M$479.7M−57,747 (−1.6%)June 30, 2026
14Amvescap Plc.1.73%3.4M$463.6M−897,600 (−20.7%)June 30, 2026
15Legal & General Group PLC1.70%3.4M$455.1M+157,519 (+4.9%)June 30, 2026
16Bank of America Corp1.41%2.8M$377.0M+294,907 (+11.8%)June 30, 2026
17Victory Capital Management Inc.1.40%2.8M$376.2M+287,360 (+11.5%)June 30, 2026
18UBS Asset Mgmt Americas Inc1.30%2.6M$349.5M−51,346 (−1.9%)June 30, 2026
19Allspring Global Investments Holdings, LLC1.23%2.4M$330.5M−3,680 (−0.1%)June 30, 2026
20The Goldman Sachs Group Inc1.10%2.2M$294.9M+257,106 (+13.3%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 12.5M shares and 8 cut 1.8M.

AWK top mutual fund and ETF holders

20 largest
American Water Works Company, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Vanguard MStar Total Stk Mkt Idx Invest3.12%6.2M$836.7M−11,599 (−0.2%)August 31, 2026
2Vanguard 500 Index Investor2.61%5.2M$700.2M+61,516 (+1.2%)August 31, 2026
3Vanguard MStar Mid Cap Index Instl2.13%4.2M$570.0M−2,246 (−0.1%)August 31, 2026
4Vanguard Equity-Income Inv2.12%4.2M$567.8M+514,021 (+13.9%)June 30, 2026
5State Street®UtilSelSectSPDR®ETF1.72%3.4M$460.7M+35,076 (+1.0%)September 30, 2026
6Vanguard Dividend Growth Inv1.37%2.7M$366.6M+1.4M (+103.0%)June 30, 2026
7iShares Core S&P 500 ETF1.33%2.6M$357.3M−4,255 (−0.2%)September 30, 2026
8Fidelity 500 Index1.28%2.5M$342.1M+9,745 (+0.4%)August 31, 2026
9State Street® SPDR® S&P 500® ETF1.23%2.4M$329.1M—September 30, 2026
10Victory Sycamore Established Value R0.97%1.9M$260.7M+202,000 (+11.7%)June 30, 2026
11Allspring Special Mid Cap Value Inst0.97%1.9M$259.4M+400 (+0.0%)August 31, 2026
12Vanguard Windsor II Inv0.94%1.9M$252.7M—June 30, 2026
13Vanguard MStar Value Index Investor0.94%1.9M$251.6M+4,442 (+0.2%)August 31, 2026
14Vanguard Wellesley® Income Inv0.88%1.8M$236.3M+179,585 (+11.4%)June 30, 2026
15JPMorgan US Equity L0.75%1.5M$202.2M+96,622 (+6.9%)August 31, 2026
16Nordea 1 - Global Climate & Envir BI EUR0.74%1.5M$198.3M—August 31, 2026
17Invesco S&P 500® Equal Weight ETF0.70%1.4M$188.1M−2,850 (−0.2%)September 30, 2026
18iShares Global Water ETF USD Dist0.67%1.3M$180.7M—September 30, 2026
19BNP Paribas Aqua C C0.64%1.3M$171.7M−181 (−0.0%)August 31, 2026
20Vanguard MStar Mid Cap Value ETF0.64%1.3M$170.6M+7,097 (+0.6%)August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

AWK insider transactions

latest 6
American Water Works Company, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-04-07Rick LarsenSell$135.35——
2026-01-29Ro KhannaSell$128.94——
2026-01-14Rick W. AllenSell$132.30——
2025-11-21Dwight EvansSell$132.77——
2025-11-05Richard McCormickBuy$131.16——
2025-05-30Melissa K WikleSell$143.282,825$404,766

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

AWK shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns AWK

Institutional investors own 110.2% of American Water's shares and insiders 0.12%. The largest holder is BlackRock Inc with 10.37% of the shares (20.6M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 8.91% of the float, or 7.34 days of average trading volume. The share count rose 8.2% since 2014.

Related: AWK analyst forecast, AWK key metrics, AWK dividend history. See the AWK stock overview for the latest quote and news.

AWK ownership FAQ

Who owns the most American Water stock?

The largest shareholders of American Water are BlackRock Inc (10.37%), Wellington Management Company LLP (7.50%), Vanguard Capital Management, LLC (6.43%), State Street Corp (5.99%), Vanguard Portfolio Management, LLC (5.66%).

What percentage of American Water is owned by institutions?

Institutions hold 110.2% of American Water's shares outstanding; insiders hold 0.12%.

Which funds own American Water?

The largest fund holders of American Water are Vanguard MStar Total Stk Mkt Idx Invest (3.12%), Vanguard 500 Index Investor (2.61%), Vanguard MStar Mid Cap Index Instl (2.13%), Vanguard Equity-Income Inv (2.12%), State Street®UtilSelSectSPDR®ETF (1.72%).

What is American Water's short interest?

13.8M shares of American Water were sold short, 8.91% of the float; at the average daily volume it would take 7.34 days to cover.

Are insiders buying or selling American Water?

Of the latest 6 reported insider transactions in American Water (since May 30, 2025), 1 were purchases and 5 were sales.

How many shares of American Water are outstanding?

American Water has 198.7M shares outstanding, of which 198.3M are in the public float.

Utilities - Regulated Water: ownership