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Fusion Fuel Green PLC

corporate_fare Company Profile

Fusion Fuel Green PLC

HTOO·NASDAQ·Technology·CIK 0001819794

Fusion Fuel Green PLC was a provider of green hydrogen technology from its inception until 2024. The company initially offered a miniaturized PEM electrolyzer, called "HEVO," designed to attach to concentrated photovoltaic ("CPV") solar modules, forming a combined solar-to-green hydrogen system known as HEVO-Solar. In 2023, Fusion Fuel Green PLC began commercializing the HEVO-Chain solution, which involved HEVO units operating in sequence for scalability and compatibility with any electrical energy input. The company shifted its focus to the HEVO-Chain solution for new client proposals due to easier installation and licensing, lower space requirements, and versatile power input. Revenues from electrolyzer system sales began in 2023. From 2022 until 2024, Fusion Fuel Green PLC operated a solar-to-green hydrogen demonstration and research and development plant in Evora, Portugal. The company also operated an industrial electrolyzer production factory in Benavente, Portugal, which it sold in a 9.3 million transaction, generating net proceeds of approximately 7.5 million, subject to a lease-back contract. As of the end of 2023, Fusion Fuel Green PLC had contracts to provide its electrolyzer technology for five green hydrogen projects, with capacities ranging from 300 kW to 1.25 MW, and engineering and procurement services, including designs, specifications, balance of plant equipment, and turnkey project delivery, contingent on government support or grants. On February 16, 2024, the company's HEVO-Portugal project was selected for approval under the European Commission's Important Projects of Common European Interest Hy2Infra program.

Fusion Fuel Green PLC (NASDAQ:HTOO) is a publicly traded company in the Technology sector. Wiseek has independently scored 43 items for HTOO at importance 7 or higher on its 1–10 market-impact scale. Its most recent item scored 7 or higher is dated 2026-10-06, rated 9/10. Across its 20 most recent items scored 7 or higher, the top rating is 9/10, with 13 rated 8 or above. Recent SEC coverage for HTOO spans 20-F/A, 6-K/A, 6-K, 424B3.

Recent high-impact activity:

  • Restated FY2025 Annual Report Surfaces Material Weakness, Going Concern, and QIND Debt Defaults
  • Fusion Fuel Quantifies FY2025 Restatement: €4.0M Higher Net Loss, €3.8M Equity Hit
  • Fusion Fuel Green to Restate FY2025 Financials After Auditor Flags Errors
  • Fusion Fuel Green to Issue 500,000 Shares at $4.00 in $2M Share Exchange with QIND
  • Fusion Fuel Registers 4.99M Share Resale; Prospectus Restates Going Concern and QIND Default Risk

Financial Snapshot

Fiscal year ended December 31, 2025
Revenue
€14.41M EUR
Net Income
-€952K EUR
Diluted EPS
-€1.27 EUR
Op. Cash Flow
-€8.24M EUR
Gross Profit
€4.17M EUR
Operating Income
-€7.9M EUR
Cash & Equivalents
€575K EUR
Debt / Equity
0.00×
Net Margin
-6.6%
Source: 20-F · filed 2026-05-07 · accession 0001493152-26-021722

Short Interest & Short Volume

1.00 days to cover

FINRA reported short interest of 18,516 shares in HTOO as of the September 15, 2026 settlement, a 82.5% increase from the prior period — about 1.0 days to cover at its recent average daily volume. On October 8, 2026, 50.1% of HTOO volume reported to FINRA trade-reporting facilities was marked short.

Short interest (bi-monthly positions)18,516 shares as of September 15, 2026
Change vs prior period▲ 82.5%
Days to cover1.00 at avg daily volume of 215,091
Daily short volume (FINRA facilities)50.1% of 14,074 shares on October 8, 2026
5-day average short volume47.2%

Daily short sale volume covers trades reported to FINRA trade-reporting facilities and is not the same as short interest (bi-monthly reported positions). Source: FINRA — FINRA is the owner and source of this short interest and short sale volume data; it may not be redistributed.

Dilution Risk

Low risk

Filing-implied dilution signals for HTOO, detected from its recent SEC filings · based on capital-structure filings through 2026-09-23.

2 recent capital raisesATM program

ATM Program Launched · Dilution Impact

⚠ A more recent filing has been published for this ticker since this signal was computed; it may not yet be reflected — see the filings below.

A filing-implied signal, not a realized share count. How Wiseek tracks dilution →

Insider Transactions

HTOO files as a Foreign Private Issuer (FPI). Under SEC Exchange Act Section 16(a), officers, directors, and 10% owners of FPIs are exempt from Form 4 insider-transaction reporting requirements. Comparable disclosures, when applicable, appear in the company's Form 20-F (annual) or Form 6-K (interim) filings on SEC EDGAR.

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$1.92
52-week range · as of 2026-10-06 $1.8 – $5.42
Market cap
$14.43M
Volume
23.4K (0.3× avg)
3-mo avg 90.7K
Live data · 2026-10-09 01:33 UTC · Market overnight

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feed HTOO - Latest Insights

HTOO
Oct 06, 2026, 5:15 PM EDT
Filing Type: 20-F/A
Importance Score:
9
Price at Filing: $2.10
Real-time Price: $1.92 info
Change: -$0.180 (-9%) info
Market Cap: $14.431M info
HTOO
Oct 06, 2026, 4:15 PM EDT
Filing Type: 6-K/A
Importance Score:
8
Price at Filing: $2.10
Real-time Price: $1.92 info
Change: -$0.180 (-9%) info
Market Cap: $14.431M info
HTOO
Sep 25, 2026, 5:28 PM EDT
Filing Type: 6-K
Importance Score:
9
Price at Filing: $2.05
Real-time Price: $1.92 info
Change: -$0.130 (-6%) info
Market Cap: $14.431M info
HTOO
Sep 25, 2026, 4:35 PM EDT
Filing Type: 6-K
Importance Score:
7
Price at Filing: $2.04
Real-time Price: $1.92 info
Change: -$0.120 (-6%) info
Market Cap: $14.431M info
HTOO
Sep 23, 2026, 8:03 AM EDT
Filing Type: 424B3
Importance Score:
8
Price at Filing: $1.99
Real-time Price: $1.92 info
Change: -$0.070 (-4%) info
Market Cap: $14.431M info
HTOO
Sep 11, 2026, 4:15 PM EDT
Filing Type: F-3
Importance Score:
8
Price at Filing: $2.31
Real-time Price: $1.92 info
Change: -$0.3901 (-17%) info
Market Cap: $14.431M info
HTOO
Sep 04, 2026, 5:15 PM EDT
Filing Type: 6-K
Importance Score:
7
Price at Filing: $2.52
Real-time Price: $1.92 info
Change: -$0.600 (-24%) info
Market Cap: $14.431M info
HTOO
Aug 11, 2026, 4:40 PM EDT
Filing Type: 6-K/A
Importance Score:
8
Price at Filing: $2.46
Real-time Price: $1.92 info
Change: -$0.540 (-22%) info
Market Cap: $14.431M info
HTOO
Aug 07, 2026, 5:29 PM EDT
Filing Type: 6-K
Importance Score:
8
Price at Filing: $2.48
Real-time Price: $1.92 info
Change: -$0.560 (-23%) info
Market Cap: $14.431M info
HTOO
Jul 29, 2026, 5:16 PM EDT
Filing Type: 424B5
Importance Score:
7
Price at Filing: $2.58
Real-time Price: $1.92 info
Change: -$0.6573 (-26%) info
Market Cap: $14.431M info
HTOO
Jul 22, 2026, 8:00 AM EDT
Filing Type: 6-K
Importance Score:
9
Price at Filing: $2.51
Real-time Price: $1.92 info
Change: -$0.590 (-24%) info
Market Cap: $14.431M info
HTOO
Jun 09, 2026, 8:32 AM EDT
Source: Dow Jones Newswires
Importance Score:
9
Price at Filing: $3.37
Real-time Price: $1.92 info
Change: -$1.45 (-43%) info
Market Cap: $14.431M info
HTOO
Jun 09, 2026, 8:30 AM EDT
Filing Type: 6-K
Importance Score:
9
Price at Filing: $2.95
Real-time Price: $1.92 info
Change: -$1.03 (-35%) info
Market Cap: $14.431M info
HTOO
Jun 04, 2026, 8:30 AM EDT
Filing Type: 6-K
Importance Score:
7
Price at Filing: $3.26
Real-time Price: $1.92 info
Change: -$1.34 (-41%) info
Market Cap: $14.431M info
HTOO
Jun 04, 2026, 8:30 AM EDT
Source: GlobeNewswire
Importance Score:
7
Price at Filing: $3.26
Real-time Price: $1.92 info
Change: -$1.34 (-41%) info
Market Cap: $14.431M info
HTOO
May 27, 2026, 7:45 AM EDT
Filing Type: 6-K
Importance Score:
9
Price at Filing: $3.09
Real-time Price: $1.92 info
Change: -$1.17 (-38%) info
Market Cap: $14.431M info
HTOO
May 21, 2026, 8:00 AM EDT
Filing Type: 6-K
Importance Score:
8
Price at Filing: $2.92
Real-time Price: $1.92 info
Change: -$1.00 (-34%) info
Market Cap: $14.431M info
HTOO
May 18, 2026, 8:30 AM EDT
Filing Type: 6-K
Importance Score:
9
Price at Filing: $2.93
Real-time Price: $1.92 info
Change: -$1.01 (-34%) info
Market Cap: $14.431M info
HTOO
May 15, 2026, 9:15 AM EDT
Filing Type: 6-K
Importance Score:
7
Price at Filing: $3.00
Real-time Price: $1.92 info
Change: -$1.08 (-36%) info
Market Cap: $14.431M info
HTOO
May 12, 2026, 8:29 AM EDT
Filing Type: 6-K
Importance Score:
7
Price at Filing: $3.03
Real-time Price: $1.92 info
Change: -$1.11 (-37%) info
Market Cap: $14.431M info
Research tools: Filing Impact Index Dilution Tracker Split Calendar Open Datasets