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HTOO

Fusion Fuel Green PLC

Company with tickers: HTOO

CIK
1819794
CUSIP
G3R25D209
Shares Outstanding
2,288,291
13F Activity (30d)
2 filings 1 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 10
Total Value: $1,957,523
Total Shares: 699,117

Institutional Ownership Trend

10 quarters

Holder Concentration

Across 8 13F filers
Top Holder
76.2%
Jun 2025 → Mar 2026 · range 29.0% – 100.0%
of institutional value
Top 5
99.8%
Jun 2025 → Mar 2026 · range 80.6% – 100.0%
of institutional value
Top 10
100.0%
Jun 2025 → Mar 2026 · range 98.9% – 100.0%
of institutional value
HHI
6,243
Jun 2025 → Mar 2026 · range 1,660 – 10,000
Highly concentrated

Quarterly Activity

vs Jan 4, 2026
New
10
Increased
0
Decreased
0
Sold Out
1
Unchanged
0
Holder count: +9
Institutional value: -68.7%
Shares held: -60.0%

Top New Positions

vs Jan 4, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Jan 4, 2026
Institution Previously Held Last Value (USD) Open
Showing 10 of 10
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Holder Value (USD) % of 13F Shares Open