The largest holder of Eni S.p.A. stock is Government of Italy, with 1.00 billion shares (33.08% of the company) as of September 25, 2026. The 10 largest holders together own 46.0%.
In Q2 2026, 356 institutional holdings reports listed 25.7 million shares worth $1.21 billion, up 2.4% in shares from Q1 2026.
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026).

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Government of Italy | 1.00 billion | 33.08% | – |
| Eni S.P.A. | 151.8 million | 5.01% | – |
| Romano Minozzi3.215 % | 97.4 million | 3.21% | – |
| BlackRock Fund Advisors | 73.3 million | 2.42% | – |
| BlackRock Advisors (UK) Ltd. | 25.7 million | 0.85% | – |
| BlackRock Investment Management (UK) Ltd. | 11.8 million | 0.39% | – |
| BlackRock Investment Management LLC | 9.0 million | 0.30% | – |
| BlackRock Asset Management Deutschland AG | 8.4 million | 0.28% | – |
| Mediolanum Gestione Fondi SGRpA | 7.3 million | 0.24% | – |
| Sjunde Ap Fonden (Investment Management) | 5.7 million | 0.19% | – |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 356 | 25.7 million | $1.2B |
| Q1 2026 | 344 | 25.1 million | $1.4B |
| Q4 2025 | 290 | 20.5 million | $776.0M |
| Q3 2025 | 252 | 19.7 million | $689.0M |
| Q2 2025 | 225 | 18.4 million | $597.0M |
| Q1 2025 | 215 | 17.5 million | $543.0M |
| Q4 2024 | 217 | 17.4 million | $471.0M |
| Q3 2024 | 218 | 18.8 million | $560.0M |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Government of Italy, with 33.08% of the company (as of September 25, 2026). Next: Eni S.P.A. (5.01%) and Romano Minozzi3.215 % (3.21%).
356 institutional holdings reports listed Eni S.p.A. shares in Q2 2026, 25.7 million shares in all worth $1.21 billion.