FuelCell Energy, Inc. (FCEL) Ownership

NASDAQ: FCELTop holders, insider trades and short interest.

FCEL ownership summary

as of October 18, 2026
Institutions
58.1%
of shares outstanding
Insiders
7.76%
of shares outstanding
Shares outstanding
80.0M
Float
76.1M
shares available to trade
Short interest
30.64%
24.5M shares short
Days to cover
3.65
short interest down 1.7% vs prior month
  • Institutions 58.10%
  • Insiders 7.76%
  • Other investors 34.13%

FCEL top institutional holders

20 largest
FuelCell Energy, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc5.39%4.3M$56.1M+3.3M (+316.3%)June 30, 2026
2Legal & General Group PLC3.03%2.4M$31.5M−446,101 (−15.6%)June 30, 2026
3Vanguard Capital Management, LLC2.92%2.3M$30.3M+151,160 (+6.9%)June 30, 2026
4State Street Corp2.68%2.1M$27.9M+1.9M (+818.0%)June 30, 2026
5Two Sigma Investments LLC2.58%2.1M$26.8M+780,137 (+60.9%)June 30, 2026
6Geode Capital Management, LLC1.76%1.4M$18.3M+826,884 (+142.2%)June 30, 2026
7Encompass Capital Advisors LLC1.71%1.4M$17.8M+1.4M (0.0%)June 30, 2026
8UBS Group AG1.59%1.3M$16.6M+673,676 (+112.2%)June 30, 2026
9Renaissance Technologies Corp1.59%1.3M$16.5M+385,900 (+43.5%)June 30, 2026
10Anatole Investment Management Ltd1.46%1.2M$15.2M+1.2M (0.0%)June 30, 2026
11T. Rowe Price Investment Management,Inc.1.40%1.1M$14.6M+1.1M (0.0%)June 30, 2026
12Driehaus Capital Management LLC1.27%1.0M$13.2M+1.0M (0.0%)June 30, 2026
13Amvescap Plc.1.23%982K$12.8M−233,730 (−19.2%)June 30, 2026
14Baird Financial Group, Inc.1.08%866K$11.3M+866,244 (0.0%)June 30, 2026
15Jane Street Group LLC1.08%860K$11.2M+859,595 (0.0%)June 30, 2026
16Citadel Advisors Llc1.07%853K$11.1M+282,592 (+49.6%)June 30, 2026
17Millennium Management LLC0.93%747K$9.7M−5,608 (−0.7%)June 30, 2026
18Trexquant Investment LP0.92%739K$9.6M+220,069 (+42.4%)June 30, 2026
19Group One Trading, LLC0.87%696K$9.1M+645,535 (+1,270.3%)June 30, 2026
20HRT FINANCIAL LLC0.81%646K$8.4M+602,672 (+1,404.5%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 17 holders added 16.1M shares and 3 cut 685K.

FCEL top mutual fund and ETF holders

20 largest
FuelCell Energy, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Vanguard MStar Total Stk Mkt Idx Invest3.11%2.5M$32.3M−1,417 (−0.1%)August 31, 2026
2L&G Hydrogen Economy ETF USD Acc2.14%1.7M$22.3M−1,003 (−0.1%)September 30, 2026
3iShares Russell 2000 ETF1.76%1.4M$18.3M−16,192 (−1.1%)September 30, 2026
4American Beacon Small Cp Val R51.02%818K$10.6M+818,034 (0.0%)August 31, 2026
5Stt Strt®SPDR®S&PKenshoNwEcosComposETF0.75%601K$7.8M—September 30, 2026
6Fidelity Small Cap Index0.74%594K$7.7M+5,197 (+0.9%)July 31, 2026
7iShares Russell 2000 Value ETF0.64%510K$6.6M+774 (+0.2%)September 30, 2026
8Nuveen Quant Small Cap Equity R60.55%442K$5.7M—August 31, 2026
9T. Rowe Price Small-Cap Value0.55%439K$5.7M—September 30, 2026
10Schwab US Small-Cap ETF™0.53%423K$5.5M+279 (+0.1%)September 30, 2026
11Xtrackers MSCI USA Swap ETF 1C0.51%409K$5.3M+408,844 (0.0%)December 31, 2025
12Stt Strt® SPDR® S&P KenshoClnPwrETF0.49%391K$5.1M—September 30, 2026
13Invesco Dorsey Wright IndustrialsMomtETF0.44%354K$4.6M—September 30, 2026
14Fidelity Extended Market Index0.40%316K$4.1M−1,700 (−0.5%)August 31, 2026
15Vanguard Russell 2000 ETF0.39%316K$4.1M+3,683 (+1.2%)September 30, 2026
16Global X Hydrogen ETF0.38%306K$4.0M—September 30, 2026
17Invesco WilderHill Clean Energy ETF0.36%289K$3.8M+8,069 (+2.9%)September 30, 2026
18GG Wasserstoff I0.32%252K$3.3M+105,463 (+71.7%)June 30, 2026
19MFS New Discovery Value I0.31%252K$3.3M−4,247 (−1.7%)August 31, 2026
20Defiance AI & Power Infrastructure ETF0.29%229K$3.0M+350 (+0.2%)September 30, 2026

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

FCEL insider transactions

latest 2
FuelCell Energy, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-04-20Shankar AchantaSell$8.002,500$20,000
2025-12-22Betsy B BinghamSell$8.528,608$73,340

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.

FCEL shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns FCEL

Institutional investors own 58.1% of FuelCell Energy's shares and insiders 7.76%. The largest holder is BlackRock Inc with 5.39% of the shares (4.3M), as of June 30, 2026. Among the top 20 institutions, 17 added shares and 3 reduced their stake in the latest filings. Short interest is 30.64% of the float, or 3.65 days of average trading volume. The share count rose 1,755.8% since 2014.

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

FCEL ownership FAQ

Who owns the most FuelCell Energy stock?

The largest shareholders of FuelCell Energy are BlackRock Inc (5.39%), Legal & General Group PLC (3.03%), Vanguard Capital Management, LLC (2.92%), State Street Corp (2.68%), Two Sigma Investments LLC (2.58%).

What percentage of FuelCell Energy is owned by institutions?

Institutions hold 58.1% of FuelCell Energy's shares outstanding; insiders hold 7.76%.

Which funds own FuelCell Energy?

The largest fund holders of FuelCell Energy are Vanguard MStar Total Stk Mkt Idx Invest (3.11%), L&G Hydrogen Economy ETF USD Acc (2.14%), iShares Russell 2000 ETF (1.76%), American Beacon Small Cp Val R5 (1.02%), Stt Strt®SPDR®S&PKenshoNwEcosComposETF (0.75%).

What is FuelCell Energy's short interest?

24.5M shares of FuelCell Energy were sold short, 30.64% of the float; at the average daily volume it would take 3.65 days to cover.

Are insiders buying or selling FuelCell Energy?

Of the latest 2 reported insider transactions in FuelCell Energy (since December 22, 2025), 0 were purchases and 2 were sales.

How many shares of FuelCell Energy are outstanding?

FuelCell Energy has 80.0M shares outstanding, of which 76.1M are in the public float.

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