Companies: 10,795·Total market cap: $144.5T
Fusion Fuel Green PLC

Fusion Fuel Green PLC

HTOONASDAQUtilities● Active
$2.92
$-0.25(-7.89%)
Market Cap$5286864
P/E Ratio—
52W High$12.63
52W Low$2.41
Shares OutstandingFinancialsRevenue

Fusion Fuel Green PLC (HTOO) Shares Outstanding — Overview

Basic and diluted weighted average shares, YoY change, float context, and historical trend from SEC filings and FMP.

HTOO · shares outstanding · updated Jun 8, 2026

Key metrics

Basic Shares Outstanding · Weighted average · fiscal year
1.3M▼ -92.77% YoY Change
FY · as of Dec 31, 2025 · Reported in EUR
vs 18.5M in FY 2024
Diluted Shares Outstanding
1.3M
incl. options, RSUs, convertibles
Dilution Spread
+0.00%
Diluted vs Basic
YoY Change
-92.77%
year-over-year
Float (Free Float)
1.4M
publicly tradable shares
75.4% of total
Source: FMP /income-statement · /shares-float · SEC 10-K / 10-QUpdated: 2026-06-08

Shares Outstanding Growth Rate

3-Year CAGRdeclining
-53.5%
2022 → 2025
5-Year CAGRdeclining
-12.9%
2020 → 2025
10-Year CAGR—
—
—
ⓘ

Negative CAGR typically indicates share buyback or retirement activity. Interpret alongside Splits and Financials tabs. Splits / Financials

Shares outstanding history

↓ Decrease — typically buyback / retirement
↑ Increase — issuance / equity compensation
Latest
* most recent reported · FMP /income-statement · weightedAverageShsOut

Annual shares outstanding by year

FY 2025Latest
Diluted Shares: 1.3M
1.3M
-92.77%
FY 2024
Diluted Shares: 18.5M
18.5M
+26.29%
FY 2023
Diluted Shares: 14.6M
14.6M
+9.74%
FY 2022
Diluted Shares: 13.3M
13.3M
+1.69%
FY 2021
Diluted Shares: 13.2M
13.1M
+390.64%
FMP /income-statement · weightedAverageShsOut · weightedAverageShsOutDilUnit: Billions (B)

Utilities sector shares outstanding comparison

Shares Outstanding for similar companies or competitors in the Utilities sector.

#SymbolCompanyShares (Basic)vs HTOO
#1
NextEra Energy, Inc.NEE
NextEra Energy, Inc.
2.089B+>999%
#2
The Southern CompanySO
The Southern Company
1.103B+>999%
#3
National Grid plcNGG
National Grid plc
989.2M+>999%
#4
Duke Energy CorporationDUK
Duke Energy Corporation
777.0M+>999%
#5
Constellation Energy CorporationCEG
Constellation Energy Corporation
313.0M+>999%
#6
GE Vernova Inc.GEV
GE Vernova Inc.
272.0M+>999%
#7
Fusion Fuel Green PLCHTOO
Fusion Fuel Green PLCYOU
1.3M—

/company-screener · per-peer /income-statement · cache 86400s

Understanding Shares Outstanding

What Are Shares Outstanding? (Basic)

Fusion Fuel Green PLC (HTOO) shares outstanding is the total number of issued shares held by shareholders — the basis for Basic EPS and market capitalization. As of December 31, 2025, Fusion Fuel Green PLC reports 1.3M basic shares outstanding (weighted average).

Basic vs. Diluted Shares Outstanding

Fusion Fuel Green PLC's basic shares outstanding (1.3M) represents currently issued shares. Diluted shares outstanding (1.3M) also includes potential shares from stock options, RSUs, and convertibles. Dilution spread: +0.00%.

Shares Outstanding vs. Float (Free Float)

Fusion Fuel Green PLC's float is 1.4M (75.4% of total shares outstanding) — shares freely available for public trading, excluding insider-held and restricted shares.

Float1.4M(75.4%)
Outstanding1.8M

ⓘ Float data from /shares-float reflects the most recent SEC filing period-end. The weighted average shares (from /income-statement) may differ — this is a normal reporting window difference, not a data error.

FMP /income-statement · /shares-float · SEC EDGAR · EUR

About shares outstanding & methodology

Fusion Fuel Green PLC (HTOO) shares outstanding history from 2019 to 2025. Shares outstanding can be defined as the total number of shares held by all shareholders — including institutional investors, retail investors, and company insiders — assuming conversion of all convertible debt, securities, warrants, and options. This metric excludes the company's treasury shares.

Fusion Fuel Green PLC shares outstanding for the fiscal year ending December 31, 2025 were 1.3M, a 92.77% decline year-over-year. Fusion Fuel Green PLC FY 2025 shares outstanding were 1.3M, a -92.77% decline from FY 2024.

Fusion Fuel Green PLC is a leading company operating in the Utilities sector. The company's share count trajectory — with a 10-year CAGR of — — is a key signal for investors evaluating capital return policy, EPS accretion, and long-term shareholder value creation.

Figures tie to SEC 10-K/10-Q income statement disclosures and FMP /income-statement · /shares-float where noted.
Market capSplitsEarningsFinancials (Income)Cash on handFree cash flowNet incomePrice history

Frequently asked questions

HTOO shares outstanding · 4 questions

As of December 31, 2025, Fusion Fuel Green PLC (HTOO) has approximately 1.3M basic shares outstanding and 1.3M diluted shares outstanding. This represents a -92.77% year-over-year change from FY 2024 (18.5M). Fusion Fuel Green PLC's declining share count is primarily driven by its share buyback program. For the complete historical data table, see the history table above.

HTOO shares outstandinghow many shares does HTOO haveHTOO basic shares 2025HTOO diluted shares

▸ Data: FMP /income-statement · /shares-float · SEC EDGAR · weighted average basis · Fusion Fuel Green PLC SEC 10-K & 10-Q filings · US GAAP · Last updated: 2026-06-08