Frederico Figueira de Chaves - 18 Mar 2026 Form 3 Insider Report for Fusion Fuel Green PLC (HTOO)

Signature
/s/ Frederico Figueira de Chaves
Issuer symbol
HTOO
Transactions as of
18 Mar 2026
Net transactions value
$0
Form type
3
Filing time
18 Mar 2026, 18:06:04 UTC

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Figueira de Chaves Frederico Interim CFO, Director C/O FUSION FUEL GREEN PLC, 9 PEMBROKE STREET UPPER, DUBLIN, IRELAND /s/ Frederico Figueira de Chaves 18 Mar 2026 0002093053

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding HTOO Class A Ordinary Shares 6,352 18 Mar 2026 Held by Key Family Holding Investimentos e Consultoria de Gestao, Ltd

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding HTOO Share Option (Right to Buy) 18 Mar 2026 Class A Ordinary Shares 5,715 $367.50 Direct F1
holding HTOO Share Option (Right to Buy) 18 Mar 2026 Class A Ordinary Shares 400,000 $4.53 Direct F2
holding HTOO Restricted Share Units 18 Mar 2026 Class A Ordinary Shares 143 $0.000000 Direct F3
holding HTOO Restricted Share Units 18 Mar 2026 Class A Ordinary Shares 286 $0.000000 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Vested equally over three years.
F2 Vests in three equal installments on December 31, 2025, December 31, 2026, and December 31, 2027.
F3 Does not expire.