What is Plug Power's shares (diluted)?

Plug Power (PLUG) reported shares (diluted) of 1.4B in Q1 2026.

How has Plug Power's shares (diluted) changed year-over-year?

Plug Power's shares (diluted) increased by 46.9% year-over-year, from 945.8M to 1.4B.

What is the long-term trend for Plug Power's shares (diluted)?

Over 4 years (2021 to 2025), Plug Power's shares (diluted) has grown at a 18.6% compound annual growth rate (CAGR), from 2.2B to 4.4B.

What does shares (diluted) mean?

The weighted-average shares outstanding plus all potentially dilutive shares from stock options, RSUs, convertible securities, and warrants, using the treasury stock method.

Plug Power PLUG Shares (Diluted)

Shares (Diluted) at other companies

Bloom EnergyBE

319.7M+38.9%

KBRKBR

127M-3.8%

Fluence Energy, Inc.FLNC

132.5M+2.0%

CaterpillarCAT

465.8M-2.4%

EnerSysENS

38.1M-5.7%

DoverDOV

135.9M-1.7%

Other financials

Income statement

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Revenue$163.5M+22.3%

Gross profit-$21.6M+70.7%

Operating income-$109.5M+38.6%

Net income-$245.3M-24.7%

EPS (diluted)-$0.18+14.3%

Balance sheet

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Cash & equivalents$223.2M-24.6%

Total debt$263.3M-22.5%

Total equity$749.8M-59.6%

Total assets$2.4B-34.8%

Cash flow

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Operating cash flow-$150.0M-42.1%

CapEx$2.4M-94.0%

Free cash flow-$152.4M-4.4%

Valuation

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Market cap$3.98B+140%

Enterprise value$4.02B+135%

P/S5.4×+2.8×

Profitability

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Gross margin-26.4%-10.7pp

Operating margin-189%-51.4pp

Net margin-227.1%-48.7pp

FCF margin-88.3%-23.9pp

Returns & leverage

See full

Return on equity-128.9%+150pp

Debt / equity0.4×+0.2×

Current ratio2.4×+0.4×

Where this comes from

Reported directly by Plug Power in its filing.

Tagged under the XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding.

The official record: Plug Power’s 10-Q, filed May 11, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Plug Power's shares (diluted)?: Plug Power (PLUG) reported shares (diluted) of 1.4B in Q1 2026.
How has Plug Power's shares (diluted) changed year-over-year?: Plug Power's shares (diluted) increased by 46.9% year-over-year, from 945.8M to 1.4B.
What is the long-term trend for Plug Power's shares (diluted)?: Over 4 years (2021 to 2025), Plug Power's shares (diluted) has grown at a 18.6% compound annual growth rate (CAGR), from 2.2B to 4.4B.
What does shares (diluted) mean?: The weighted-average shares outstanding plus all potentially dilutive shares from stock options, RSUs, convertible securities, and warrants, using the treasury stock method.