HTOO
Fusion Fuel Green PLCMarquee-fund ownership over time
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Citadel Advisors 2× in & out | Q4 2025 | Q1 2026 | — | +0% |
| Renaissance Technologies | Q3 2024 | Q4 2024 | — | +0% |
| Duquesne Family Office | Q2 2024 | Q3 2024 | — | +0% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at Fusion Fuel Green PLC. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Mar 24, 2026 — the most recent Form 4 on file — not from today.
- Form 40001493152-26-012263Mar 24, 2026
- Form 40001493152-25-026091Dec 4, 2025
- Form 40001493152-25-020047Oct 29, 2025
- Form 40001493152-25-017294Oct 7, 2025
- Form 40001493152-25-017293Oct 7, 2025
- Form 40001493152-25-016843Oct 3, 2025
- Form 40001493152-25-015996Sep 29, 2025
- Form 40001493152-25-015707Sep 26, 2025
- Form 40001493152-25-014795Sep 24, 2025
- Form 40001493152-25-014236Sep 19, 2025
- Form 40001493152-25-014234Sep 19, 2025
- Form 40001493152-25-014235Sep 19, 2025
- Form 40001493152-25-014232Sep 19, 2025
- Form 40001641172-25-022264Aug 5, 2025
- Form 40001641172-25-021009Jul 25, 2025
Fundamentals
XBRL · Fusion Fuel Green PLCNot enough XBRL history to plot. Fusion Fuel Green PLChasn't tagged revenue, net income, EPS, or operating cash flow in the SEC us-gaap taxonomy with at least two fiscal-year periods — typical for SPACs / trust vehicles, pre-revenue biotechs, recent IPOs, and foreign filers reporting under IFRS.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for Fusion Fuel Green PLC — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 6-KInterim disclosure (foreign)Jun 9, 2026
- 6-KInterim disclosure (foreign)Jun 4, 2026
- 6-KInterim disclosure (foreign)May 27, 2026
- 6-KInterim disclosure (foreign)May 21, 2026
- 6-KInterim disclosure (foreign)May 18, 2026
- 6-KInterim disclosure (foreign)May 15, 2026
- 6-KInterim disclosure (foreign)May 12, 2026
- 6-KInterim disclosure (foreign)May 11, 2026
- 6-KInterim disclosure (foreign)May 7, 2026
- 20-FAnnual report (foreign)May 7, 2026
- 6-KInterim disclosure (foreign)Apr 23, 2026
- 6-KInterim disclosure (foreign)Apr 20, 2026
- 6-KInterim disclosure (foreign)Apr 9, 2026
- 6-KInterim disclosure (foreign)Apr 7, 2026
- 6-KInterim disclosure (foreign)Apr 2, 2026
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Citadel Advisors | Q4 2025 | Q1 2026 | $0.00 | — | +0% |
| Citadel Advisors | Q1 2025 | Q3 2025 | $0.00 | — | +0% |
| Renaissance Technologies | Q3 2024 | Q4 2024 | $0.00 | — | +0% |
| Duquesne Family Office | Q2 2024 | Q3 2024 | $0.00 | — | +0% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.