5 institutions reported holding $10.4M of Iberdrola SA (IBDSF) in SEC 13F filings for 2026-06-30. Largest institutional holders: Generali Investments CEE, investicni spolecnost, a.s. ($8.8M), Canton Hathaway, LLC ($1.3M), GAMMA Investing LLC ($239,889), Heritage Wealth Advisors ($43,822), ATLAS CAPITAL ADVISORS INC. ($5,662). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Generali Investments CEE, investicni spolecnost, a.s. | $8.8M | 354,006 | Added |
| 2 | Canton Hathaway, LLC | $1.3M | 53,023 | Hold |
| 3 | GAMMA Investing LLC | $239,889 | 9,609 | Hold |
| 4 | Heritage Wealth Advisors | $43,822 | 1,755 | New |
| 5 | ATLAS CAPITAL ADVISORS INC. | $5,662 | 227 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30